GB 230-90347.911

LOEWE. DVD-PlayerXemixArt.-Nr. 59501

LOEWE systems DVD-PlayerAuroArt.-Nr. 59502

General DescriptionAdjustment ProceduresBlock / Schematic DiagramsExploded Views / Parts List

Digital Versatile Disc

CLASS 1LASER PRODUCT

TRACKTITLESCANTIMETRACKTOTAL

CHAPTERVCD SHUFFLECHAPTERTITLE TRACK

A -B REPEATFTS

TRACKTITLESCANTIMETRACKTOTAL

CHAPTERVCD SHUFFLECHAPTERTITLE TRACK

A -B REPEATFTS

Technical specificationsGB 2 59502 & 595011.

1. Technical specifications

1.1 General:

Mains voltage : 230V (196 - 263V AC)Mains frequency : 50 Hz -60HzPower consumption : 20WPower consumption standby : <10W (≤5W for low

power standby; without P50)

1.2 Audio performance

Test equipment : Audio PrecisionTestdiscs : CDDA: Philips audio

signal testdisc 1: VCD: Philips A/V

testdisc & ABEX A/V testdisc

: DVD: Philips LVP09.00 audio testdisc

1.3 Line output

1.3.1 'Normal' mode (stereo)

Output voltage :2 channel mode : 2Vrms +/- 1.5dB5.1 channel Dolby : 1.41 +/- 1.5 dBChannel unbalance (1kHz) : <0.85dBCrosstalk :1kHz : >105dB 20Hz-20kHz : > 95dBFrequency response :20Hz- 12kHz : +/- 0.1dB maxSignal to noise ratio : >100 dBDynamic range :1kHz : >90dB20Hz-20kHz : >88dBDistortion and noise :1kHz : >90dB20Hz-20kHz : >80dBIntermodulation distortion : >87dBPhase non linearity : +/- 1° max.Level non linearity : +/- 0.5dB max.Mute (spin-up, pause, access) : >100dBOutband attenuation : > 50dB above 25kHz

1.3.2 'Center on' mode (mono)

Output voltage : 2Vrms typChannel unbalance (1kHz : <0.85dBCrosstalk: : monoFrequency response(20Hz- 12kHz) : 0.1dB maxSignal to noise ratio : >85 dBDynamic range 20Hz-20kHz : >85 dBDistortion and noise 20Hz-20kHz : >80 dBIntermodulation distortion : >87 dBPhase non linearity : not applicableLevel non linearity : +/- 1 dBMute (spin-up, pause, access) : >100dBOutband attenuation : > 50dB above 25kHzCenterdelay adjusting : 0-5 msec (steps 1

msec)

1.4 6-channel output

1.4.1 Front Line out(channel 1 and 2)

fully according to PQR class IIIOutput voltage :channel mode : 1.41Vrms +/- 1.5dB5.1 channel Dolby : 1.41V +/- 1.5 dBChannel unbalance (1kHz) : <0.85dBCrosstalk :1kHz : >105dB20Hz-20kHz : > 95dBFrequency response 20Hz- 12kHz : +/- 0.1dB maxSignal to noise ratio : >100 dBDynamic range :1kHz : >90dB20Hz-20kHz : >88dBDistortion and noise :1kHz : >90dB20Hz-20kHz : >80dBIntermodulation distortion : >87dBPhase non linearity : +/- 1° max.Level non linearity : +/- 0.5dB max.Mute (spin-up, pause, access) : >100dBOutband attenuation : > 50dB above 25kHz

1.4.2 Surround channels (channel 3,4,5 and 6)

Surround channels are according to dolby group C products (*1)Testequipment: audio precision (*2)LFE + Center + Rear line out Output voltage :2 channel mode : muted5.1 channel Dolby : 1.41Vrms +/-1.5dB

: Adjustable 0.7V-2.82 V

: (+/- 6dB to front channels)

Channel unbalance : <0.85 dBSignal to noise ratio : >100 dB (A-weighted)Dynamic range : >85 dBDistortion and noise : >80 dB (90 typical)Crosstalk: : >95 dB (*3)*1 : referenced to dolby

digital licensee information manual version 2.0

*2 : measured in normal mode and with balance control neutral

*3 : crosstalk from channels 1,3,5(channel 1 is ref) to 2,4,6(measured channels)

1.5 Headphone output

According PQR1 IMS30mW at 32 Ohm load.Headphone impedance: 8-2000 Ohm

1.6 Video performance VCD testdisc : Philips A/V disc & ABEX A/V disc

Technical specifications GB 359502 & 59501 1.

DVD testdisc : Philips MPTD PAL CVP0213 / Philips LVP10.00 video testdisc

1.6.1 CVBS

Fully according PQR3 IMSVideo output : 1Vpp(0.1V into 75

Ohm)

1.6.2 S-video (Y/C)

Fully according PQR3 IMS1 - GND

2 - GND

3 - Y 1Vpp +/- 0.1V into 75 Ohm 4 - C burst 300mVpp +1/-4dB into 75

Ohm Aspect ratio switching by DC on C(pin4).Connector type : 4 pin mini- DIN

1.7 Scart

Fully according PQR3 IMSConnector implementation according EN50049-1; color = black; dual SCARTFully according to prEN1057-2-1Signal switching is P50 controlled; supported features of mode 3 see survey of applicable standards.

1.7.1 SCART II (connected to TV)

Pin signals:1 - Audio R 1.8V RMS

2 - Audio R

3 - Audio L 1.8V RMS

4 - Audio GND

5 - Blue/Chroma GND

6 - Audio L

7 - Blue out/Chroma in 0.7Vpp +/- 0.1V into 75 Ohm (*)

8 - Function switch <2V = TV

>4.5V / <7V = asp. ratio 16:9 DVD>9.5V / <12V = asp. ratio 4:3 DVD

9 - Green GND

10- Nc 11- Green 0.7Vpp +/- 0.1V into 75 Ohm (*)

12- Nc 13- Red/Chroma GND

14- Fast switch GND

15- Red out/Chroma out 0.7Vpp +/- 0.1V into 75 Ohm (*)

+/- 3dB 0.3Vpp in case of Chroma

16- Fast switch RGB/ CVBS or Y <0.4V into 75 Ohm = CVBS

>1V / <3V into 75 Ohm = RGB

17- Y/CVBS GND

18- Fast switching GND

19- CVBS/Y/RGB sync 1Vpp +/- 0.1V into 75 Ohm (*)

20- CVBS/Y

21- Shield

1.7.2 SCART I (connected to AUX)

Pin signals:1 - Audio R 1.8V RMS

2 - Audio R

3 - Audio L 1.8V RMS

4 - Audio GND

5 - Blue/Chroma GND

6 - Audio L

7 - Blue in/Chroma out +/- 3dB 0.3vpp Chroma (burst)

8 - Function switch

9 - Green GND

10- P50 Control 11- Green

12- Nc 13- Red/Chroma GND

14- Fast switch GND

15- Red in/Chroma in

16- Fast switch RGB/ CVBS or Y

17- CVBS GND

18- Fast switching GND

19- CVBS/Y/RGB sync 1Vpp +/- 0.1V into 75 Ohm (*)

20- CVBS/Y

21- Shield

(*) for 100% white

1.8 Digital output

1.8.1 Coaxial

CDDA/ LPCM (incl MPEG1) : According IEC958MPEG2, AC3 audio : According IEC1937Remark:DTS audio output mode is only available on “digital out”

1.8.2 Optical

Identical to coaxial

1.9 Dimensions and weight

Place and height of feet : acc. to Loewe Harmonisation line

Apparatus tray closed : WxDxH: 435 x 315x 75/88

Apparatus tray open : WxDxH: 435 x 442 x 75/88

Weight without packaging : ca. 4 KgWeight in packaging : ca. 6 Kg

1.10 Laser output power & wavelength

1.10.1 DVD

Output power : 7mWWavelength : 650nm

1.10.2 CD

Output power : 10mWWavelength : 785nm

Warnings and Laser safety instructionsGB 4 59502 & 595012.

2. Warnings and Laser safety instructions

SHOCK, FIRE HAZARD SERVICE TEST:

CAUTION: After servicing this appliance and prior to returning to customer, measure the resistance betweeneither primary AC cord connector pins (with unit NOT connected to AC mains and its Power switch ON), and theface or Front Panel of product and controls and chassis bottom,Any resistance measurement less than 1 Megohms should cause unit to be repaired or corrected before ACpower is applied, and verified before return to user/customer.Ref.UL Standard NO.1492.

NOTE ON SAFETY:

Symbol : Fire or electrical shock hazard. Only original parts should be used to replace any part with symbol Any other component substitution(other than original type), may increase risk or fire or electrical shock hazard.

F ATTENTION

Tous les IC et beaucoup d’autres semi-conducteurs sont sensibles aux déchargesstatiques (ESD).Leur longévité pourrait être considérablementécourtée par le fait qu’aucune précautionn’est prise a leur manipulation.Lors de réparations, s’assurer de bien êtrerelié au même potentiel que la masse del’appareil et enfiler le bracelet serti d’unerésistance de sécurité.Veiller a ce que les composants ainsi que lesoutils que l’on utilise soient également a cepotentiel.

D WARNUNG

Alle IC und viele andere Halbleiter sindempfindlich gegen elektrostatischeEntladungen (ESD).Unsorgfältige Behandlung bei der Reparaturkann die Lebensdauer drastisch vermindern.Sorgen sie dafür, das Sie im Reparaturfallüber ein Pulsarmband mit Widerstand mitdem Massepotential des Gerätes verbundensind.Halten Sie Bauteile und Hilfsmittel ebenfallsauf diesem Potential.

WAARSCHUWING

Alle IC’s en vele andere halfgeleiders zijngevoelig voor elektrostatische ontladingen(ESD).Onzorgvuldig behandelen tijdens reparatiekan de levensduur drastisch doenverminderen.Zorg ervoor dat u tijdens reparatie via eenpolsband met weerstand verbonden bent methetzelfde potentiaal als de massa van hetapparaat.Houd componenten en hulpmiddelen ook opditzelfde potentiaal.

AVVERTIMENTO

Tutti IC e parecchi semi-conduttori sonosensibili alle scariche statiche (ESD).La loro longevita potrebbe essere fortementeridatta in caso di non osservazione della piugrande cauzione alla loro manipolazione.Durante le riparazioni occorre quindi esserecollegato allo stesso potenziale che quellodella massa dell’apparecchio tramite unbraccialetto a resistenza.Assicurarsi che i componenti e anche gliutensili con quali si lavora siano anche aquesto potenziale.

All ICs and many other semi-conductors aresusceptible to electrostatic discharges (ESD).Careless handling during repair can reducelife drastically.When repairing, make sure that you areconnected with the same potential as themass of the set via a wrist wrap withresistance.Keep components and tools also at thispotential.

WARNING

Safety regulations require that the set be restored to its original conditionand that parts which are identical with those specified be used.

Veiligheidsbepalingen vereisen, dat het apparaat in zijn oorspronkelijketoestand wordt terug gebracht en dat onderdelen, identiek aan degespecifieerde worden toegepast.

Bei jeder Reparatur sind die geltenden Sicherheitsvorschriften zu beachten.Der Originalzustand des Gerats darf nicht verandert werden.Fur Reparaturen sind Original-Ersatzteile zu verwenden.

Le norme di sicurezza esigono che l’apparecchio venga rimesso nellecondizioni originali e che siano utilizzati pezzi di ricambiago idetici a quellispecificati.

Les normes de sécurité exigent que l’appareil soit remis a l’état d’origine etque soient utilisées les pièces de rechange identiques à celles spécifiées.

“Pour votre sécurité, ces documentsdoivent être utilisés par desspécialistes agrées, seuls habilités àréparer votre appareil en panne.”

GB NL

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Warnings and Laser safety instructions GB 559502 & 59501 2.

LASER SAFETY

This unit employs a laser. Only a qualified service person should remove the cover or attempt to service thisdevice, due to possible eye injury.

LASER DEVICE UNIT

Type: Semiconductor laser GaAlAsWave length: 650 nm (DVD)

780 nm (VCD/CD)Output Power: 7 mW (DVD)

10 mW (VCD/CD)Beam divergence: 60 degree

USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF PROCEDURE OTHER THAN THOSESPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE.

AVOID DIRECT EXPOSURE TO BEAM

WARNING

The use of optical instruments with this product will increase eye hazard.Repair handling should take place as much as possible with a disc loaded inside the player

WARNING LOCATION: INSIDE ON LASER COVERSHIELD

CAUTION VISIBLE AND INVISIBLE LASER RADIATION WHEN OPEN AVOID EXPOSURE TO BEAM ADVARSEL SYNLIG OG USYNLIG LASERSTRÅLING VED ÅBNING UNDGÅ UDSÆTTELSE FOR STRÅLING ADVARSEL SYNLIG OG USYNLIG LASERSTRÅLING NÅR DEKSEL ÅPNES UNNGÅ EKSPONERING FOR STRÅLEN VARNING SYNLIG OCH OSYNLIG LASERSTRÅLNING NÄR DENNA DEL ÄR ÖPPNAD BETRAKTA EJ STRÅLEN VARO! AVATT AESSA OLET ALTTIINA NÄKYVÄLLE JA NÄKYMÄTTÖMÄLLE LASER SÄTEILYLLE. ÄLÄ KATSO SÄTEESEEN VORSICHT SICHTBARE UND UNSICHTBARE LASERSTRAHLUNG WENN ABDECKUNG GEÖFFNET NICHT DEM STRAHL AUSSETZEN DANGER VISIBLE AND INVISIBLE LASER RADIATION WHEN OPEN AVOID DIRECT EXPOSURE TO BEAM ATTENTION RAYO NNEMENT LASER VISIBLE ET INVISIBLE EN CAS D'OUVERTURE EXPOSITION DANGEREUSE AU FAISCEAU

Warning for powersupply on position 1005

The primary side of the powersupply including the heatsink carries live mains voltage when theplayer is connected to the mains even when the player is swiched off !This primary area is not shielded so it is possible to touch copper tracks and/or components whenservicing the player. Service personnel have to take precautions to prevent touching this area orcomponents in this area .The primary side of the powersupply has been indicated with a lightning stroke and a stripe-markedprinted on the printed wiring board

Note:The screws on the basic Engine (position 82 in on the exploded view drawing) may never betouched removed or re-adjusted.Handle the Basic engine with care when the unit has to be exchanged!The mechanism of the basic engine is very sensative for droping or shocks

!

CL 96532065_003.eps011199

Service hintsGB 6 59502 & 595013.

3. Service hints

The DVD module(Basic Engine and the mono board) has to be exchanged completely in case of failure. A new module for Xemixcan be ordered with codenumber 291-90350.969 for Region Code 4 (Australia), 291-90350.970 for Region Code 5 (Russia), and 291-90350.968 for all European countries Region Code 2.A new module for Auro can be ordered with codenumber 291-90350.988 for Region Code 4 (Australia), 291-90350.989 for Region Code 5 (Russia),and 291-90350.987 for all European countries Region Code 2. Return the defective unit complete assembled in original package to Loewe Consumer Service in Kronach.

DIAGNOSTIC SOFTWARE : SCRIPT INTERFACES GB 2759502 & 59501 6.

6. DIAGNOSTIC SOFTWARE : SCRIPT INTERFACES

6.1 DEALER SCRIPT

6.1.1 Purpose of Dealer Script

The dealer script can give a diagnosis on a standalone DVD player; no other equipment is needed to perform a number of hardware tests to check if the DVD player is faulty. The diagnosis is simply a "error" or "pass" message; no indication is given of faulty hardware modules. Only tests within the scope of the diagnostic software will be executed hence only faults within this scope can be detected.

6.1.2 Contents of Dealer Script

The dealer script executes all diagnostic nuclei that do not need any user interaction and are meaningful on a standalone DVD player.The nuclei called in the dealer script are the following (the number after each nucleus name corresponds with the number being on the local display when the nucleus is executed during the dealer script):

Figure 6-1

Figure 6-2

VideoColSetupComm Checks the I2C interface with the RGB video processor on theAudio/Video board (only for DVD players with RGB video processor).

VideoScartSwComm Checks the I2C interface with the scart switch on the Audio/Videoboard

PapChksFl 7 Calculate and verify checksum of FLASH memory.PapDramWrR 6 Pattern test of all locations in the DRAM(s).PapI2cDisp Checks the I2C interface with the slave processor on the display PCB.PapS2bEcho Checks the I2C interface to the basic engine.PapI2cNvram Checks the I2C interface with the NVRAM.PapNvramWrR Pattern test of all locations in the NVRAMCompSdramWrR Pattern test of all locations in the SDRAM(s).

Nucleus

8

5

4

3

2

1

9

Description

CL 96532065_001.eps120799

Press 2 keys simultaneously<OPEN/CLOSE> + <PAUSE>

Connect to mains.

During the test, the following displayis shown: the counter counts downfrom the number of nuclei to be runbefore the test finishes. Example:

SET O.K.?

YES

NO

To exit DEALER SCRIPT ,disconnect from mains.

CL96532126_013.eps261099

DIAGNOSTIC SOFTWARE : SCRIPT INTERFACESGB 28 59502 & 595016.

6.2 PLAYER SCRIPT

6.2.1 Purpose of Player Script

The Player script will give the opportunity to perform a test that will determine which of the DVD player's modules are faulty, to read the error log and error bits and to perform an endurance loop test. To successfully perform the tests, the DVD player must be connected to a tv set to check the output of a number of nuclei. For DVDv2b a multi-channel amplifier, a set of 6 boxes and an external video source are necessary to test. To be able to check results of certain nuclei, the player script expects some interaction of the user (i.e. to approve a test picture or a test sound). Some nuclei (e.g. nuclei that test functionality of the Basic Engine module) require that the DVD player itself is opened, to enable the user to observe moving parts and approve their movement visually. Only tests within the scope of the diagnostic software will be executed hence only faults within this scope can be detected.

6.2.2 Contents of Player Script

The player script contains all nuclei that are useful on a DVD player that is connected to a tv-set and help to determine which module of the DVD player is faulty, as well as to read out the contents of the error logs.

6.2.3 Structure of Player Script

The player script consists of a set of nuclei testing the three hardware modules in the DVD player: the Display PWB, the Digital PWB and the Basic Engine.Nuclei run by the player test need some user interaction; in the next paragraph this interaction is described. The player test is done in two phases:1. Interactive tests: this part of the player test depends

strongly on user interaction and input to determine nucleus results and to progress through the full test. Reading the error log and error bits information can be useful to determine any errors that occurred recently during normal operation of the DVD player.

2. The loop test will perform the same nuclei as the dealer test, but it will loop through the list of nuclei indefinitely.

6.2.4 Survey

Figure 6-3

SLEDGE TEST BeSledgeOut/In(41ab)

FOCUS TEST BeFocusOn(38a)

DISC MOTOR TEST BeDiscMotorOn(39a)

RADIAL TEST BeRadialOn(40a)

JUMP TEST BeGroovesIn/Mid/Out(42abc)

Press 2 keys simultaneously<OPEN/CLOSE> + <STOP>

Connect to mains

To exit player test,disconnect from mains

INTERACTIVE TESTS

DISPLAY TEST DispDisplay(30)

LED TEST DispLed(29)

KEYBOARD TEST DispKeyb(27)

SCART LOOP TEST

AudioPinkNoiseOn(20a)VideoScartSwDvd(54a)

VideoColDencOn(23a)PICTURE TEST

DISPLAY PCB

MONO PCB(SERVO)& BASIC ENGINE

MONO PCB(DIGITAL)AUDIO/VIDEO PCB

TRAY TEST BeTrayOut/In(43ab)

VERSION NUMBER BeVer(37)

REMOTE CONTROL DispRc(28)

TRAY TEST BeTrayOut/In(43ab)

ERROR LOG & BITSLogReadErr(31) LogReadbits(32)

LOOP TEST = Dealer script exclusive of test2

AudioSineOn(21a)

VideoColSetupHi(53a)VideoColSetupLo(53b)

SOUND 1 TESTSCART DVD TEST

SOUND 2 TEST

COLOUR SETUP TEST

VideoScartSwPass(54b)

CL96532126_014.eps261099

DIAGNOSTIC SOFTWARE : SCRIPT INTERFACES GB 2959502 & 59501 6.

6.3 INTERACTIVE TESTS

6.3.1 DISPLAY PCB

DISPLAY TESTThe display test is performed by nucleus DispDisplay. By putting a series of test patterns on the local display, the local display is tested. To step through all different patterns, the user must either press PLAY (pattern is ok) or PAUSE (pattern was incorrect) to proceed to the next pattern. The display of patterns is continued in a cyclic manner until the user presses NEXT. If the user presses NEXT before all display patterns are tested, the DispDisplay nucleus will return TRUE (display test successful).

LED TESTThe LED(s) on the DVD player is (are) tested by nucleus DispLed. The user must check if the LED(s) is (are) lighted; if it is, press PLAY, if it is not, press PAUSE. By pressing NEXT the script will proceed to the next test. If the user presses NEXT before PLAY or PAUSE, the DispLed nucleus will return TRUE (LED test successful).

Figure 6-4

KEYBOARD TESTThe keyboard of the DVD player is tested by nucleus DispKeyb. The user is expected to press all keys on the local keyboard once. The code of the key pressed is shown on the local display (1 hexadecimal digit) immediately followed by a (hexadecimal) number indicating how many times that key has been pressed. Example of the local display during this test:

Figure 6-5

The key-codes displayed on the local display will scroll from right to left when the display gets full, the text "tb-" will remain on display.

Figure 6-6

If any keys are detected more than once (due to hardware error), the key-code is displayed twice (or more), with the second digit increased by 1. If the user does not press all keys minimally once (in any order), the DispKeys nucleus will return FALSE and cause an error in the overall result of the player script. The user can leave the keyboard test by pressing the NEXT key on the local display of the DVD player for at least one full second. The result of the keyboard test is shown on local display as follows:

Figure 6-7

Or

Figure 6-8

Pressing NEXT on the local keyboard again will proceed to the next text.

REMOTE CONTROL TESTThe remote control of the DVD player is tested by nucleus DispRc. The user must press any key on the remote control just once. The codes of the key pressed will be shown on the local display in hexadecimal format. Example:

Figure 6-9

In this example 23 is the hexidecimal code of the pressed RC key. The user can leave the remote-control test by pressing NEXT on the local keyboard of the DVD player. The remote control test is successful if a code was received before the user pressed the NEXT key; pressing the NEXT key before pressing a key on the remote control gives an error in the remote control

If OK, press PLAY If NOK, press PAUSE

If OK, press PLAY If NOK, press PAUSE

If OK, press PLAY If NOK, press PAUSE

press NEXT to continue CL 96532065_006.eps120799

CL 96532065_007.eps120799

key id. key0 PLAY1 NEXT2 PREVIOUS3 PAUSE4 STOP5 OPEN/CLOSE6 3D-SOUNDA STANDBY

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DIAGNOSTIC SOFTWARE : SCRIPT INTERFACESGB 30 59502 & 595016.

test (note that the remote control test will also fail if a key on the remote control was pressed but no code was received). The remote control test does not check upon the contents of the received code, that is it will not be checked if the received code matches the key pressed. If desired, the user can manually check this code by using a code-table for the remote control key-codes.

Figure 6-10

After pressing NEXT, the result of the remote control test is displayed on the local display of the DVD player as follows:

Figure 6-11

Or

Figure 6-12

Pressing NEXT on the local keyboard again will proceed to the next test.

6.3.2 MONO PCB DIGITAL PART

PICTURE TESTThe picture test is performed by putting a predefined picture (colour bar) on the display (nucleus VideoColDencOn) and asking the user for confirmation. The display will show the following message:

Figure 6-13

By pressing PLAY the user confirms the test, pressing PAUSE will indicate the picture was invisible or incorrect. Pressing NEXT will proceed to the next test

SOUND 1 & SCART DVD TESTThe first soundtest is performed by starting a pink noise sound that needs confirmation from the user (nucleus AudioPinkNoiseOn); the display will show the following message very shortly:

Figure 6-14

This sound will only be audible from version cut3.1 of Sti5505(item7503 on mono board) onwards. After starting up sound 1, SCART loop-trough will be simultaneously active during this test. SCART loop-trough will be measured with the aid of an external video source.When entering the SCART loop-trough, the local display indicates:

RC Key id Hexadecimal codeSTANDBY CSTOP 31PLAY 2CPLAY BACKWARD 2DPAUSE 30STEP FORWARD F6STEP BACKWARD F5FORWARD 28FORWARD 4X DFFORWARD 8X E0BACKWARD 29BACKWARD 4X DEBACKWARD 8X DDSLOW 22SLOW 2 D8SLOW BACKWARD 23SLOW BACKWARD 2 DBNEXT 20PREVIOUS 21CURSOR UP 58CURSOR DOWN 59CURSOR LEFT 5ACURSOR RIGHT 5BOK 5C0 01 12 23 34 45 56 67 78 89 9TOGGLE C8ANGLE 85AUDIO 4ESUBTITLES 4BSUBTITLE ON/OFF E3ROOT MENU 54TITLE MENU 71MENU D1SETUP MENU 82OSD ON/OFF FRETURN 83RESUME D7SCAN 2ASHUFFLE 1CREPEAT 1DA/B REPEAT 3DTOGGLE SCART 43OPEN/CLOSE 42FTS FBKARAOKE E4OPTION FA

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DIAGNOSTIC SOFTWARE : SCRIPT INTERFACES GB 3159502 & 59501 6.

Figure 6-15

On the TV screen a colour bar (generated by nucleus VideoColDencOn) is visual and the internally generated pinknoise is audible. By pressing PLAY the user confirms the test, pressing PAUSE will indicate the sound was inaudible or incorrect. Pressing NEXT will proceed to the next test; if the user presses NEXT without pressing PLAY or PAUSE first, the result of this test will be TRUE (sound ok). By pressing the NEXT button there will be switched over to the external source, this must become now visible on the TV screen (using the SCART). The local display indicates:

Figure 6-16

The internally generated colour bar is still available on the CVBS and Y/C outputs. And the pinknoise-signal is still available on the cinch audio outputs. By pressing the PREV button, the internal generated colour bar becomes visual again. The test can be left by pressing the NEXT key for more than one second.

SOUND 2 TESTThe second soundtest is performed by producing a sine sound (nucleus AudioSineOn). The signal can be stopped by pressing the STOP-key. The display will show the following message:

Figure 6-17

By pressing PLAY the user confirms the test, pressing PAUSE will indicate that something went wrong. Pressing NEXT will proceed to the next; if the user presses NEXT without pressing PLAY or PAUSE first, the result of this test will be TRUE (sound ok).

Colour set-up testThe colour set-up test is performed by putting the internally generated colour bar in diffferent settings on the TV screen. The first colour bar will be displayed in setting 1. The display will show the following message:

Figure 6-18

By pressing the NEXT button, you can go to the second setting. The local display indicates:

Figure 6-19

By pressing the PREVIOUS button, the colour bar with the first setting becomes visual again.By pressing PLAY the user confirms the test, pressing PAUSE will indicate that something went wrong. The test can be left by pressing the NEXT key for more than one second; if the user presses NEXT without pressing PLAY or PAUSE first, the result of this test will be TRUE (colour set-up ok).

6.3.3 BASIC ENGINE

VERSION NUMBERIn the basic engine tests, the version number of the Basic Engine will be shown first, as the following example:

Figure 6-20

By pressing the NEXT key, the Basic Engine tests are started.

TRAY TESTFirst, the tray is tested. The purpose of this test is also to give the user the opportunity to put a disc in the tray of the DVD player. Some tests on the Basic Engine require that a disc(e.g. DVD MPTD test disc) is present in the player. At the end of the Basic Engine tests this tray test will be repeated solely to enable the user to remove the disc in the tray. The local display will look as follows:

Figure 6-21

By pressing PLAY or PAUSE the user can toggle the position of the tray. Note that this test will not contribute to the test result of the Basic Engine. Pressing NEXT will proceed to the next test, after the tray has been closed (by the software) if it was open.

SLEDGE TEST(visual test)The second Basic Engine test tests the sledge; the user can move the sledge as many times as desired by using PLAY (nucleus BeSledgeOut) and PAUSE (nucleus BeSledgeIn). Pressing NEXT on the local keyboard proceeds to the next test. Note that this test will not contribute to the test result of the Basic Engine. The local display will look as follows during the sledge test:

CL 96532065_017.eps120799

CL 96532065_018.eps120799

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DIAGNOSTIC SOFTWARE : SCRIPT INTERFACESGB 32 59502 & 595016.

Figure 6-22

DISC MOTOR TEST(visual test)The third Basic Engine test tests the disc motor (nucleus BeDiscMotorOn); the local display looks as follows:

Figure 6-23

By pressing PLAY the user confirms that the disc motor is running; pressing PAUSE indicates the disc motor does not work. Pressing NEXT proceeds to the next test, after a reset of the disc motor (nucleus BeDiscMotorOff). If the user presses NEXT before pressing PLAY or PAUSE, the result of this test will be TRUE (disc motor is running).

FOCUS TEST(visual test)The fourth Basic Engine test tests the focussing; first focussing is turned on by calling nucleus BeFocusOn. The display will look as follows:

Figure 6-24

By pressing PLAY the user confirms that the focussing was succesful; pressing PAUSE indicates a focussing failure. Pressing NEXT proceeds to the next test after a reset of the focussing (nucleus BeFocusOff); if NEXT is pressed before PLAY or PAUSE, the result of this test will be TRUE (focus successful).

RADIAL TEST(visual & listening test)The fifth Basic Engine test tests the radial functionality (nucleus BeRadialOn); the local display looks as follows:

Figure 6-25

By pressing PLAY the user confirms that the radial function worked; pressing PAUSE indicates the function does not work. Pressing NEXT proceeds to the next test, after a reset of the radial (nucleus BeRadialOff). If the user presses NEXT before pressing PLAY or PAUSE, the result of this test will be TRUE (radial successful).

JUMP TEST(listening test)The sixth and last Basic Engine test tests the jumping by calling nuclei BeGroovesIn, BeGroovesMid and BeGroovesOut. During this test, the local display looks as follows:

Figure 6-26

The user can switch between the three different types of groove settings by pressing PLAY (forward to next nucleus in the list In-Mid-Out) or PAUSE (backward in the list In-Mid-Out). This is done in a cyclic manner; note that this test will not contribute to the test result of the Basic Engine. Pressing NEXT proceeds to the next test, after the disc motor has been shut off with a call to nucleus BeDiscMotorOff.

TRAY TESTAs a last action for the Basic Engine tests, the tray test is repeated. The local display will look as follows:

Figure 6-27

This test is meant to give the user the opportunity to remove the disc in the tray. The tray position can be toggled using the PLAY and PAUSE key. The tray will be closed (by the software, if it is open) before proceeding to the next test when the user presses the NEXT key.

CL 96532065_022.eps120799

CL 96532065_023.eps120799

CL 96532065_024.eps120799

CL 96532065_025.eps120799

CL 96532065_026.eps120799

CL 96532065_027.eps120799

DIAGNOSTIC SOFTWARE : SCRIPT INTERFACES GB 3359502 & 59501 6.

ERROR LOGReading the error log and error bits information can be useful to determine any errors that occurred recently during normal operation of the DVD player. Reading the error log is done by nucleus LogReadErr. The display during the errorlog readout looks as follows :

Figure 6-28

By pressing PLAY or PAUSE the user can move forward or backward (respectively) through the logged error codes. The highlighted number indicates which errorcode is currently on display (in the example above, errorcode number 4 is displayed). If "0000" is displayed at all positions, the error log is empty. Display of the logged errors is done in a cyclic manner. The errorcode with the lowest highlighted number is the most

recent. By pressing NEXT on the local keyboard, the user can proceed to the next test.

ERROR BITSReading the error bits is done by nucleus LogReadBits. The display during the errorbits readout looks as follows:

Figure 6-29

Only the set errorbits will be shown by their (decimal) number. Refer to the appropriate documentation for the explanation of each bit number. If the display only shows "EB-0", no error bits were set. By pressing NEXT the user can continue to the next test.See table below:

CL96532126_019.eps261099

CL96532126_020.eps261099

Error log / bits table Read ERROR LOG in player script

Read ERROR BITS in player script

Basic engine errors Value: Value:

Command to the Basic Engine not allowed in this stae or unknown command

150101 8

Parameter(s) from the command to the Basic Engine is not valid 150102 7

Sledge could not be moved to the ineer home position 150103 6

Focus failure 150104 5

Turntable motor could not be reached within timeout 150105 4

Radial servo could get on track on the disc 150106 3

PLL could not lock in the accessing or tracking state 150107 2

Subcode or sector information could not be read 150108 1

requested subcode could not be found 150109 16

Tray could not be closed or opened completely 15010A 15

TOC could not be read within timeout 15010B 14

The requested seek on the disc could not be executed 15010C 13

A requested lead is not on the disc 15010D 12

A non existing burst cutting area is requested 15010E 11

S2b communication error 1501F0 10

S2b communication error 1501F1 9

S2b communication error 1501F3 24

S2b communication error 1501F4 23

S2b communication error 1501F5 22

Digital PWB errors

Communication error with the Sti 5505 90000 32

Communication error with the Sti 5505 90001 31

Disply processor errors

Communication error with the display processor 190000 40

DIAGNOSTIC SOFTWARE : SCRIPT INTERFACESGB 34 59502 & 595016.

6.3.4 LOOP TEST

At the start of the loop test, the display will show the result of the interactive player test:

Figure 6-30

The left side of the display contains a 3-digit code, which can have a value between 000 and 111. These values are to be interpreted as follows:

Figure 6-31

The loop test will perform the same nuclei as the dealer test, but it will loop through the list of nuclei indefinitely. The display of the DVD player will display not only the three digits indicating correct/faulty modules and the last found error code (as mentioned, faults are detected as far as they can be within the scope of the diagnostic software), but also a loop counter indicating how many times the loop has been gone through. Example:

Figure 6-32

The number after the hyphen indicates the number of times the loop test has been performed; the 4 digits at the right side of the display show the last error that was found when running the loop test: the leftmost two digits of this code indicate which nucleus resulted in a fault; the rightmost two digits refer to the faultcode within that nucleus. For further explanation of this error code, see list of error codes below.

Figure 6-33

CL 96532065_030.eps120799

DisplayedValue

Indication for each module

Basic Engine MonoPCB

DisplayPCB

000 ok ok ok001 ok ok faulty010 ok faulty ok011 ok faulty faulty100 faulty ok ok101 faulty ok faulty110 faulty faulty ok111 faulty faulty faulty

CL 96532065_031.eps120799

FAULTYMODULE(S)

LOOPCOUNTER NUCLEUS ERROR

CL 96532065_032.eps120799

ERROR CODES LOOP TEST

ERROR CODE NUCLEUS NUMBER ERROR DESCRIPTION0601 6 Calculated checksum of FLASH is not correct0901 9 The DVD DRAM is faulty1101 11 I2C bus busy before start1102 NVRAM access time-out1103 No NVRAM Acknowledge1104 NVRAM reply time-out1201 12 I2C bus busy1202 I2C bus not working1203 Slave controller not responding1204 Slave response is not correct1301 13 Parity error from basic engine to serial1302 Parity error from serial to basic engine1303 No communication between serial and basic engine1304 Communication time-out error1601 16 The SDRAM is faulty5201 52 I2c bus busy5202 I2c bus not working5203 Colour setup controller not responding5204 Colour setup controller response not correct5401 54 I2c bus busy5402 I2c bus not working5403 Scart switch controller not responding5404 Scart switch controller response not correct

CL96532126_021.eps261099

Servicing DVD module and MONO board GB 3559502 & 59501 7.

7. Servicing DVD module and MONO board

7.1 Replacing DVD module

7.2 Reprogramming of new mono boards.

Figure 7-1

7.3 Reset of Virgin Mode

After the player has been powered up for test by the dealer, it would have gone through the Virgin Mode. It is possible to reset the settings made during that mode before the delivery of player to the customer. This can be done as shown in the following diagram:

Figure 7-2 Figure 7-3

Caution

This information is confidential and may not be distributed. Only a qualified service person shouldreprogram the mono board.

After replacement of the mono board, all the customer settings and also the region code will be lost.Reprogramming of the mono board will put the player back in the state in which it has left the factory,i.e. with the default settings and the allowed region code.

Reprogramming is limited to 25 times.When the counter reaches 25, reprogramming is not possible anymoreReprogramming will be done by way of the remote control.Put the player in stop mode, no disc loaded.Press the following keys on the remote control:<PLAY> followed by numerical keys <2> <7> <4>The display shows: “- - - - - - - - - - -”Press now successively the following keys : LDV 501L/001 <0><0><1> <0><0><0><0><0><0><0><0><0>LDV 501U/001 <0><0><1> <0><0><0><0><0><0><0><0><0>LDV 502L/001 <0><0><2> <0><0><0><0><0><0><0><0><0>LDV 502U/001 <0><0><2> <0><0><0><0><0><0><0><0><0>

Press <PLAY> again.The TV screen will become BLUE during a short time to confirm that the digital board has beenreprogrammed, then the set goes to standby mode.

CL96532158_016.eps170200

DISCONNECT FROM MAINS

PRESS 2 KEYSSIMULTANEOUSLY

<PLAY> + <OPEN/CLOSE>CONNECT TO MAINS

VIRGIN MODE IS RESETTV SCREEN SHOWSVIRGIN MODE MENU

CL96532126_023.eps261099

DISCONNECT FROM MAINS

IF TRADE MODE OFF

PRESS 2 KEYSSIMULTANEOUSLY

<PREVIOUS> + <OPEN/CLOSE>CONNECT TO MAINS

DISCONNECT FROM MAINS

IF TRADE MODE ON

PLAYER IS IN NORMAL MODEWHEN PRESSING FRONTKEYS, THE PLAYER WILL

RESPOND

PRESS 2 KEYSSIMULTANEOUSLY

CONNECT TO MAINS

PLAYER IS IN TRADE MODEWHEN PRESSING FRONT

KEYS, THE PLAYERDOESN'T RESPOND

TRADE MODEWhen the player is in Trade Mode, the player cannot be controlled by means of the front key buttons, but only by meansof the remote control.

<PREVIOUS> + <OPEN/CLOSE>

CL96532126_024.eps261099

3.

The DVD module(Basic Engine and the mono board) has to be exchanged completely in case of failure. A new module for Xemixcan be ordered with codenumber 291-90350.969 for Region Code 4 (Australia), 291-90350.970 for Region Code 5 (Russia), and 291-90350.968 for all European countries Region Code 2.A new module for Auro can be ordered with codenumber 291-90350.988 for Region Code 4 (Australia), 291-90350.989 for Region Code 5 (Russia),and 291-90350.987 for all European countries Region Code 2.Return the defective unit complete assembled in original package to Loewe Consumer Service in Kronach.

Test instructions Display boardGB 36 59502 & 595018.

8. Test instructions Display board

8.1 Display board

8.1.1 Introduction

These test instructions are written for all versions of the display PCB 396-90348.973.The contents of the PCB can be split up into next blocks:

Figure 8-1

8.1.2 Functionality description:

The essential component of the display PCB is the uP (slave). This slave works on an 8MHz resonator and has a reset circuit that is triggered by the +5Vstby. After the reset pulse, the standby control line will release the reset of the host uP. This host uP will then initialise the slave. In addition, when going to stand-by, the slave will put the host uP in reset. When the slave receives the right IR or key code to leave the standby mode, the reset of the host uP will be released.Other slave functions are:• Square signal generator to generate the filament voltage,

which is required for an AC FTD.• Generates the grid and segment scanning for the FTD.• Generates a scanning grid for the keys (separated from

display scanning).• Has inputs for RC (RC5 and RC6) and P50 (P50 controller

is built in).

8.1.3 General

• Oscilloscope measurements have been carried out using a Philips PM3392A.

• Impedance of measuring-equipment should be > 1M(.• To do correct measurements we recommend to use supply

396-90350.937, which is used in all "second generation B" DVD-players. Make sure that the main 3.3V has a 0.7A load.

8.1.4 Reset

Check next reset timing with an oscilloscope at pin 10 of the (processor.

Figure 8-2

Timing: 400msec < T1 > 700msec.CH1: +5Vstby voltage at power on.CH2: Voltage at pin 10.

8.1.5 Display steering

Check next timing and level for all grid-lines (G1 r G14).

Figure 8-3

1. Check level A: +4V5 (10% for grid lines 1 => 112. Check level A: +4V0 (10% for grid lines 12 => 143. Check level B: -33V (10%4. Check timing and levels of segment-lines P1 r P10:

Figure 8-4

µProcessor

I2C

Display

Key-matrix

RC-Eye

V filament

V filamentBuffer

P50I/O

Supply:

+5Vstby+12V-40V

CL 96532065_058.eps130799

PM3392A

ch1

ch2

CH1 2.00 V=CH2 2 V= BWL MTB 100ms- 1.04dv ch2+

1

2

T

T1

CL 96532065_073.eps130799

PM3392A

ch1ch1: low =-34.2 V

ch1: high= 3.98 V

STOPCH1 10.0 V= MTB 200us 2324us ch1+

1

T

A

B

CL 96532065_074.eps130799

PM3392A

ch1

CH1 10.0 V= BWL MTB 500us- 1.04dv ch1+

1

T

A

B

CL 96532065_075.eps130799

Test instructions Display board GB 3759502 & 59501 8.

Level A:+4V5 (10%Level B:-33V (10%The data on these segment lines depend on the characters that are displayed.The characters can be set by sending I2C commands to the display.See the Slave URS how to send a display command.

8.1.6 Key-matrix

Connect a extra 10k( pull-up to pin 36 en 37 of the (P and check next matrix scanning at these pins.

Figure 8-5

Level A: 5.0V (7%Level B: 0V (200mVCheck matrix scanning from pin 26 until 33 of the (P. The results should be the same as the diagram above.

8.1.7 I.R. receiver

Check at pin 23 of the (P if this line switches from low (< 0.3V) to high (> 4.5V), while pressing a key on a Loewe DVD remote control.

8.1.8 Karaoke interface

The karaoke interface (4 lines) is a single direction communication.This means that it consists of four uP output lines.The interface can be checked by setting or resetting these output-ports via the I2C bus.Send next command via the I2C bus:Address : 0x70Command byte : 0x24Data byte : xxxxabcdWherea : a = Karaoke reset.

: b = Karaoke data.: c = Karaoke clock.: d = Karaoke strobe.

8.1.9 P50 interface

P50 is a bi-directional serial interface, which is used for communication between video equipment. For European sets, this communication goes via pin 10 of the scart-bus. In other regions, it can be a cinch bus at the back of the set.1. Keep the uP in reset by short-circuiting emitter and

collector of transistor 7108, via resistor 3100 and 3104 transistor 7101 is switched on.

2. Check the voltage at the P50 output connector 1118-5: < 200mV.

When the reset is released the uP output-pin becomes low and transistor 7101 is switched off.

1. Check the voltage at the P50 output connector 1118-5: 4V9 (5%.

2. Check also the uP P50 input (uP pin 20): 5V (5%.3. Connect the P50 line (connector 1118-5) to ground.4. Check again the uP P50 input (uP pin 20): <0V3.

PM3392A

ch1ch1: low =-46.9mV

ch1: high= 5.09 V

STOPCH1 2.00 V= MTB10.0ms ch1-

1

B

A

CL 96532065_076.eps130799

Current mode power supplyGB 38 59502 & 595019.

9. Current mode power supply

9.1 Blockdiagram

Figure 9-1

9.1.1 Function description of the current mode power supply

MOSFET 7125 is used as a power switch controlled by the controller IC 7110. When the switch is closed, energy is transferred from the mains into the transformer. This energy is then supplied to the load when the switch is opened. By control of the switched-on time, the energy transferred in each cycle is regulated so that the output voltages are independent of load or input voltage variations. The controlling device MC44603P is an integrated pulse width modulator. A clock signal initiates power pulses at a fixed frequency. The termination of each output pulse occurs when an analogue of the inductor current reaches a threshold established by the error signal. In this way the error signal actually controls the peak inductor current on cycle-by-cycle basis.

9.2 General description of MC44603

The MC44603 is an enhanced high performance controller that is specifically designed for Off-line and dc-to dc converter applications. This device has the unique ability of automatically changing operating modes if the converter output is overloaded., unloaded, or shorted. The MC44603 has several distinguishing features when compared to conventional SMPS controllers. These features consist of a foldback facility for overload protection, a standby mode when the converter output is slightly loaded, a demagnetisation detection for reduced switching stresses on transistor and diodes, and a high current totem pole output ideally suited for driving a power MOSFET. It

can also be used for driving a bipolar transistor in low power converters. It is optimised to operate in discontinuous mode but can also operate in continuous mode. Its advanced design allows use in current mode or voltage mode control applications.

9.3 Pin connections

Figure 9-2

+6V Stand By

GNDs

FeedbackVoltage

Rsense

7201

7200

6230

6260

6250

62405131

7125

2121

REGULATION

EMIFILTER

MAINS

+12V

-8V Stand By

R QS

OSC.

+

+- -

2.5V

ErrorAmplifier

latch

LightningProtection

Rectifier

1

5

7

9

Soft-StartControl

OvervoltageMgmt

MgmtDemagnet.

OutputSense

CurrentSenseInput

Buffer

Supply Init

Out

Gnd

7110

6129

6132

Vc

+5V

2240

2260

Stand By

+5V Stand By

-40V

+3V3

GND

7233

2250

7236

22306210

2210

6220

CL 96532065_064.eps130799

Rref

R Frequency Standby

Voltage feedback Input

Error Amp Output

R Power Standby

Sof-Start/Dmax/Voltage Mode

Sync Input

Overvoltage Protection(OVP)

Current Sense Input

Demag. Detection

Foldback Input

107 CT

8 9

6

5

11

12

Output

Gnd

VC

VCC

3

4

2

14

13

15

1 16

CL 96532065_065.eps261099

Current mode power supply GB 3959502 & 59501 9.

9.4 Blockdiagram of MC44603

Figure 9-3

9.5 Pin function description

Figure 9-4

VS8 OUT

CONTROL

Dmax &SOFT-START

Vref

Voc

GND

OUT

VC

PROTECTVOLTAGEOVER

MANAGEMENT

OVERVOLTAGE

DEMAGNETISATIONMANAGEMENT

OSCILLATOR

STANDBY(REDUCED FREQUENCY)

ERRORAMP

CURRENTSENSE

DEMAGNETISATIONDETECT

SYNC INPUT

CT

RF STANDBY

Iref

REFERENCEBLOCK

SUPPLYINITIALISATION BLOCK

Vref Iref

Vrefenable

UVL01

VOSC

VOSC PROT

=1

LATCH

THERMALSHUTDOWN

BUFFER

VOLTAGEFEEDBACK

2.5V

RP STANDBY

Iref

UVL01

Vref

FOLDBACK

FOLDBACKINPUT

CURRENT SENSEINPUT SOFT-START

& DMAX

1

2

3

4

6

5 7 11

8

9

10

15

12

14

13 E/A OUT

16

C

1Set

1Reset

Vstby

MC44603P

CL 96532065_066.eps130799

Pin function description

Pin Name Description

1 VCC This pin is the positive supply of the IC. The operating voltage range after start-up is 9.0 to 14.5 V.

2 VC The output high state (VOH) is set by the voltage applied to this pin.

3 Output Peak currents up to 750 mA can be sourced or sunk, suitable for driving either MOSFET or Bipolar transistors.

4 Gnd The groundpin is a single return, typically connected back to the power source.

5 Foldback Input The foldback function provides overload protection.

6 OvervoltageProtection

When the overvoltage protection pin receives a voltage greater than 2.5V, the device is disabled and requires acomplete restart sequence.

7 Current SenseInput

A voltage proportional to the current flowing into the power switch is connected to this input.

8 DemagnetisationDetection

A voltage delivered by an auxiliary transformer winding provides to the demagnetisation pin an indication of themagnetisation state of the flyback transformer. A zero voltage detection corresponds to complete coresaturation.

9 SynchronisationInput

The synchronisation input pin can be activated with either a negative pulse going from a level between 0.7V and3.7V to Gnd or a positive pulse going from a level between 0.7V and 3.7V up to a level higher than 3.7V. Theoscillator runs free when Pin 9 is connected to Gnd.

10 CT The normal mode oscillator frequency is programmed by the capacitor CT choice together with the Rrefresistance value. CT, connected between Pin 10 and Gnd, generates the oscillator sawtooth.

11 Soft-Start/Dmax/Voltage-Mode

A capacitor, resistor or a voltage source connected to this pin limits the switching duty-cycle. This pin can beused as a voltage mode control input. By connecting Pin 11 to Ground, the MC44603 can be shut down.

12 RP Standby A voltage level applied to the RP Standby pin determines the output power level at which the oscillator will turninto the reduced frequency mode of operation(i.e. standby mode). An internal hysteresis comparator allows toreturn in the normal mode at a higher output power level.

13 E/A Out The error amplifier output is made available for loop compensation.

14 VoltageFeedback

This is the inverting input of the Error Amplifier. It can be connected to the switching power supply outputthrough an optical (or other) feedback loop.

15 RF Standby The reduced frequency or standby frequency programming is made by the RF Standby resistance choice.

Current mode power supplyGB 40 59502 & 595019.

9.6 Operating description

The input voltage Vcc(pin 1) is monitored by a comparator with hysteresis, enabling the circuit at 14.5V and disabling the circuit below 7.5V. The error amplifier compares a voltage Vfb(pin 14) related to the output voltage of the power supply, with an internal 2.5V reference. The current sense comparator compares the output of the error amplifier with the switch current Isense(pin 7) of the power supply. The output of the current sense comparator resets a latch, which is set every cycle by the oscillator. The output stage is a totem pole, capable of driving a MOSFET directly.

9.6.1 Start-up sequence

t1: Charging the capacitor at VccC2129 will be charged via R3123 and R3134, C2133 and C2111 via R3129. The output is switched off during t1.

t2: Charging of output capacitorsWhen the input voltage of the IC exceeds 14.5V, the circuit is enabled and starts to produce output pulses. The current consumption of the circuit increases to about 17mA, depending on the external loads of the IC. At first, the capacitor at the Vcc pin will discharge because the primary auxiliary voltage, coming from winding 7-9 is below the Vcc voltage. At some moment during t2, the primary auxiliary voltage reaches the same level as Vcc. The Vcc voltage is now determinated by this primary auxiliary voltage.

t3: regulationThe output voltage of the power supply is in regulation

t4: overloadWhen the output is shortened, the supply voltage of the circuit will decrease and after some time drop below the lower threshold voltage. At that moment, the output will be disabled and the process of charging the Vcc capacitor starts again. If the output is still shorted at the next t2 phase, the complete start-and stop sequence will repeat. The power supply comes in a hiccup mode

Figure 9-5 Start-up sequence

9.7 Regulation

Figure B shows the most relevant signals during the regulation phase of the power supply.The oscillator voltage ramps up and down between V1 and V2. The voltage at the current sense terminal is compared every cycle with the output of the error amplifier Vcomp. The output is switched off when the current sense level exceeds the level at the output of the error amplifier.1. TimeON phase : A drain current will flow from the positive

supply at pin 1 of the transformer through the transformer's primary winding, the MOSFET and Rsense to ground. As the positive voltage at pin 1 of the transformer is constant, the current will increase linearly and create a ramp dependent on the mains voltage and the inductance of the primary winding. A certain amount of energy is stored in the transformer in the form of a magnetic field. The polarity of the voltages at the secundary windings is such that the diodes are non-conducting.

2. TimeDIODE phase : When the MOSFET is switched off, energy is no longer supplied to the tranformer. The inductance of the tranformer now tries to maintain the current which has been flowing through it at a constant level. The polarity of the voltage from the transformer therefore becomes reversed. This results in a current flow through the tranformer's secondary winding via the diodes, electrolytic capacitors and the load. This current is also ramp shaped but decreasing.

3. TimeDEAD phase : when the stored energy has been supplied to the load, the current in the secondary windings stops flowing. At this point the drain voltage of the MOSFET will drop to the voltage of C2121 with a ringing caused by the Drain-Source capacitance with the primary inductance.

The oscillator will start a next cyclus which consists of the described three phases. The time of the different phases depends on the mains voltage and the load.TimeDEAD is maximum at an input of 400VDC and minimum load, it will be zero at an input of 100VDC and overload.

Figure 9-6 Regulation

1mA

Vo

0

OUTPUT

t4

short

Icc

0V

17mA

14.5V

7.5V

t1

Vcc

p.a.v.

t2 t3

10V

CL 96532065_068.eps130799

Vosc

Idiodes

Vgate

Vdrain

Idrain

Vsense

Vcomp

0

V2

V1

Ton Tdiode TdeadCL 96532065_069.eps

130799

Current mode power supply GB 4159502 & 59501 9.

9.8 Oscillograms

Figure 9-7

PM3394B

ch2

ch3

ch1

CH1 2CH2CH3 2 V~ ALT MTB5.00us- 0.90dv ch1-

1

2

3

T

ch1 : Drain voltagech2 : Drain currentch3 : Gate voltage

PM3394B

ch3

ch1

CH1 1CH3 50mV~ ALT MTB5.00us- 0.90dv ch1-

1

3

T

ch1 : Drain voltagech2 : Oscillator voltage

PM3394B

ch3

ch1

CH1 1CH3 20mV~ ALT MTB5.00us- 0.90dv ch1-

1

3

T

ch1 : Drain voltagech3 : Sense voltage CL 96532065_070.eps

130799

Current mode power supplyGB 42 59502 & 595019.

9.9 Circuit description

9.9.1 Input circuit

The input circuit consists of a lightning protection circuit and an EMI filter.The lightning protection comprises R3120, gasarrestor 1125 and R3124. The EMI filter is formed by C2120, L5120, C2125 and C2126. It prevents inflow of noises into the mains.

9.9.2 Primary rectifier/smoothing circuit

The AC input is rectified by rectifier bridge 6120 and smoothed into C2121. The voltage over C2121 is approximately 300V. It can vary from 100V to 390V.

9.9.3 Start circuit and Vcc supply

This circuit is formed by R3123, R3134, C2129, D6129, R3129, R3111, C2133 and C2111.When the power plug is connected to the mains voltage, the stabilised voltage over D6129(24V) will charge C2133 via R3129. When the voltage reaches 14.5V across C2111, the control circuit of IC7110 is turned on and the regulation starts. During regulation, Vcc of IC7110 will be supplied by the rectified voltage from winding 7-9 via R3135, D6132 and C2133.

9.9.4 Control circuit

The control circuit exists of IC7110, C2102, 2104, 2107, 2109, 2110, R3102, 3103, 3104, 3107, 3108, 3109 and 3110. The frequency of the oscillator is defined by C2102 and R3110.Power switch circuitThis circuit comprises MOSFET 7125, Rsense 3126, 3127 and 3128, R3125 , C2127, L5125, R3112 and R3113. R3125 is a pull-down resistor to remove static charges from the gate of the MOSFET.

9.9.5 Regulation circuit

The regulation circuit comprises opto-coupler 7200 which isolates the error signal from the control IC on the primary side and a reference component 7201. The TL431(7201) can be represented by two components: • a very stable and accurate reference diode• a high gain amplifier

Figure 9-8

TL431 will conduct from cathode to anode when the reference is higher than the internal reference voltage of about 2.5V. If the reference voltage is lower, the cathode current is almost zero.The cathode current flows through the LED of the opto-coupler. The collector current of the opto-coupler flows through R3106, producing an error voltage, connected to voltage feedback pin 14 of IC7110.

9.9.6 Demagnetisation

The auxiliary winding (7-9) voltage is used to detect magnetic saturation of the transformer core and connected via R3101 to pin 8 of IC7110. During the demagnetisation phase, the output will be disabled.

9.9.7 Overvoltage protection circuit

This circuit consist of D6114, C2114, R3115 and R3116.When the regulation circuit is interrupted due to an error in the control loop, the regulated output voltage will increase (overvoltage). This overvoltage is sensed on the primary winding 7-9.When an overvoltage longer than 2.0 (s is detected, the output is disabled until VCC is removed and then re-applied. The power supply will come in a hiccup mode as long as the error in the control loop is present.

9.9.8 Secondary rectifier/smoothing circuit

There are 5 rectifier/smoothing circuits on the secondary side. Each voltage depends on the number of windings of the transformer.The +5Vstby power supply is derived from the +12Vstby by voltage regulator 7233, C2233 and L5233.The -5V voltage is regulated by voltage regulator 7259 and will be switched off via D6256, T7256 and T7255 during standby (control signal STAND BY is high). When jumper 4250 is mounted instead of this circuit, a supply voltage -8Vstby will be present at pin 9 of connector 0205.The +5V power supply is derived from +6Vstby by the loader-up circuit formed by MOSFET 7236, reference component 7237, R3236, R3237 and C2239. This voltage will be switched off during STAND BY via T7235.The 3V3 power supply is regulated by the control loop (7201, 7200, 7110) of the switched mode PSU.

A

2.5V

R

K

CL 96532065_071.eps130799

List of abbreviations GB 4359502 & 59501 10.

10. List of abbreviations

SIGNAL NAME DESCRIPTION0/6/12 Scart switch control signal A/V board.

0V : loop through (AUX to TV), 6V : play 16:9 format, 12V : play 4:3 format

B Buffered Video input Blue from DVD monoboard

B/C SWITCHING Circuit for bi-directional switching of Blue and Chroma on dual scart. Switches between virtual ground (75 ohm) and video output buffer.

BC_AUX Blue or Chroma input from AUX-scart BC_TV Blue or Chroma output to TV-scartBO Blue output from RGB video processorBOUT_TV Blue output to TV-scartC_ENC Buffered Chroma input from DVD

monoboardC_OUT Chroma output to S-Video output

bufferCENTER Control signal from monoboard to

switch STEREO OUTPUT cinch to mono.

CVBS Buffered Composite video input from DVD monoboard

DC_OFF Control signal to switch off -8Vstby and +12Vstby during standby

DIG_OUT Digital outFBIN_AUX Fast blanking input from AUX-scartFBOUT_TV Fast blanking output to TV-scartG Buffered Video input Green from DVD

monoboardGIN_AUX Video input Green from AUX-scartGO Green output from RGB video

processorGOUT_TV Video output Green to TV-scartHP_L Headphone left outputHP_R Headphone right outputHSYNC Horizontal synchronization for RGB

video processor.KILL Kill control signal for audio outputs and

for soft mute of DACLIN_AUX Audio input left from AUX-scartLIN_TV Audio input left from TV-scartLOUT_AUX Audio output left to AUX-scartLOUT_TV Audio output left to TV-scartLRCLK Left/Right clockP50 Bi-directional interface used for

communication between video equipment

PCM_CLK Audio system clock for DACPCM_OUT[0:2] Audio serial output dataR Buffered Video input Red from DVD

monoboardRCIN_TV Red or Chroma input from TV-scartRCOUT_TV Red or Chroma output to TV-scartRIN_AUX Audio input right from AUX-scartRIN_TV Audio input right from TV-scartRO Red output from RGB video processorROUT_AUX Audio output right to AUX-scartROUT_TV Audio output right to TV-scartSCL I2C bus clockSCLK Audio serial bit clockSDA I2C bus dataST_L Stereo left output (not used)ST_R Stereo right output (not used)STEREO_L Audio cinch output leftSTEREO_MUTE Control signal from monoboard to

switch on stereo mute circuit (option)STEREO_R Audio cinch output right

Y_ENC Buffered Luma input from DVD monoboard

Y_OUT Luma output to S-Video output bufferYCVBSIN_AUX Luma or CVBS input from AUX-scartYCVBSIN_TV Luma or CVBS input from TV-scartYCVBSOUT_AUX Luma or CVBS output to AUX-scartYCVBSOUT_TV Luma or CVBS output to TV-scart

IC-descriptionsGB 44 59502 & 5950111.

11. IC-descriptions

STV6410

AUDIO/VIDEO SWITCH MATRIX

December 1997

TQFP64(Plastic Quad Flat Pack)

ORDER CODE : STV6410D

. I2C BUS CONTROL.STANDBY MODE

VIDEO SECTION.5 CVBS INPUTS, 4 CVBS OUTPUTS (ONEWITH SELECTABLE CHROMATRAP FILTER).5 Y/C INPUTS, 3 Y/C OUTPUTS.6dB GAIN ON ALL CVBS/Y AND C OUTPUTS.1 Y/C ADDER.2 RGB/FB INPUTS, 1 RGB/FB OUTPUT WITH6dB ADJUSTABLE GAIN.VIDEO MUTING ON ALL THE OUTPUTS.3 SLOW BLANKING INPUTS/OUTPUTS.SYNC BOTTOM CLAMP ON ALL CVBS/YAND RGB INPUTS, AVERAGE ON C INPUTS.BANDWIDTH : 15MHz.CROSSTALK : 60dB Typ.

AUDIO SECTION.5 STEREO INPUTS, 4 STEREO OUTPUTS(TWO WITH LEVEL ADJUSTMENT).MONO SOUND OUTPUT.MONO SOUND CAPABILITYON TV OUTPUTS.AUDIO MUTING ON ALL THE OUTPUTS

DESCRIPTION

The STV6410 is a highly integrated I2C bus-con-trolled audio and video switch matrix, optimized foruse in digital set-top box applications. It providesall the audio and video routings required in a fullthree scart set-top box design. It is also fully pincompatible with STV6411, the two scart version.

1

IC-descriptions GB 4559502 & 59501 11.

64

63

62

61

60

59

58

57

56

55

54

53

52

51

50

49

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1

33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48

ROUT_TV

GNDA

RIN_TV

VCCA

YCVBSIN_TV

VREF

GOUT_TV

LOUT_VCR

BOUT_TV

ROUT_VCR

LOUT_CINCH

ROUT_CINCH

CIN_TV

LIN_TV

LIN_VCR

YCVBSIN_VCR

FBOUT_TV

FBIN_AUX

FBIN_ENC

ADD

SCL

SDA

VCC12

YCVBSIN_AUX

SLB_TV

YIN_AUX

GNDV1

SLB_VCR

RCIN_AUX

GIN_AUX

SLB_AUX

BIN_AUX

RC

OU

T_T

V

VC

C1

CV

BS

IN_S

TB

LIN

_AU

X

YC

VB

SIN

_EN

C

LOU

T_T

V

YC

VB

SO

UT

_TV

RO

UT

_AU

X

CO

UT

_VC

R

LOU

T_A

UX

YC

VB

SO

UT

_VC

R

AO

UT

_RF

VO

UT

_RF

GN

DV

3

FIL

TE

R

VC

C3

CO

UT

_AU

X

GN

DV

2

VC

C2

YC

VB

SO

UT

_AU

X

RIN

_AU

X

YIN

_EN

C

RIN

_ST

B

CIN

_EN

C

RC

IN_E

NC

LIN

_ST

B

RIN

_EN

C

GIN

_EN

C

LIN

_EN

C

BIN

_EN

C

RIN

_VC

R

CIN

_VC

R

6410

-01.

EP

S

PIN CONNECTIONS

PIN LIST

Pin Number Symbol Description1 RCOUT_TV Red/chroma Output, to TV Scart

2 LOUT_TV Audio Left Output, to TV Scart

3 YCVBSOUT_TV Y/CVBS Output, to TV scart4 ROUT_AUX Audio Right Output, to AUX Scart5 COUT_VCR Chroma Output, to VCR Scart6 LOUT_AUX Audio Left Output, to AUX Scart

7 YCVBSOUT_VCR Y/CVBS Output, to VCR Scart8 AOUT_RF Audio (L+R) Output to RF Modulator

9 VOUT_RF Video (CVBS) Output to RF Modulator10 GNDV3 Video Switches Ground 311 FILTER Chroma Trap Filter

12 VCCV3 Video Switches Supply 3 (8V)13 COUT_AUX Chroma Output, to AUX Scart

14 GNDV2 Video Switches Ground 215 YCVBSOUT_AUX Y/CVBS Output, to AUX Scart

6410

-01.

TBL

2

IC-descriptionsGB 46 59502 & 5950111.

Pin Number Symbol Description

16 VCCV2 Video Switches Supply 2 (8V)17 FBOUT_TV Fast Blanking Output, to TV Scart18 FBIN_AUX Fast Blanking Input, from AUX Scart

19 FBIN_ENC Fast Blanking Input, from Encoder20 ADD I2C Bus IC Address Programmation

21 SCL I2C Bus Clock22 SDA I2C Bus Data

23 VCC12 Slow Blanking Power Supply (12V)24 YCVBSIN_AUX Y/CVBS Input from AUX Scart25 SLB_TV Slow Blanking Input/Ouput from TV

26 YIN_AUX Y Input, from AUX Scart27 SLB_VCR Slow Blanking Input/Ouput from VCR

28 RCIN_AUX Red/Chroma Input, from AUX Scart29 GNDV1 Video Switches Ground 130 GIN_AUX Green Input, from AUX Scart31 SLB_AUX Slow Blanking Input/Ouput from AUX

32 BIN_AUX Blue Input, from AUX Scart33 VCCV1 Video Switches Supply 1 (8V)

34 CVBSIN_STB CVBS Input from STB35 LIN_AUX Audio Left Input, from AUX Scart36 YCVBSIN_ENC Y/CVBS Input from Encoder

37 RIN_AUX Audio Right Input, from AUX Scart38 YIN_ENC Y Input, from Encoder39 RIN_STB Audio Right Input, from STB40 CIN_ENC Chroma Input, from Encoder

41 LIN_STB Audio Left Input, from STB42 RCIN_ENC Red/Chroma Input, from Encoder43 RIN_ENC Audio Right Input, from Encoder

44 GIN_ENC Green Input, from Encoder45 LIN_ENC Audio Left Input, from Encoder46 BIN_ENC Blue Input, from Encoder47 RIN_VCR Audio Right Input, from VCR Scart

48 CIN_VCR Chroma Input, from VCR Scart49 LIN_VCR Audio Left Input, from VCR50 YCVBSIN_VCR Y/CVBS Input from VCR Scart51 V REF Voltage Reference Decoupling

52 YCVBSIN_TV Y/CVBS Input, from TV Scart53 LIN_TV Audio Left Input, from TV Scart

54 CIN_TV Chroma Input, from TV Scart55 V CCA Audio Switches Supply (8V)

56 RIN_TV Audio right input, from TV Scart57 GNDA Audio Switches Ground

58 ROUT_CINCH Audio Right Output, to CINCH59 LOUT_CINCH Audio Left Output, to CINCH60 ROUT_VCR Audio Right Output, to VCR sCart61 BOUT_TV Blue Output, to TV Scart62 LOUT_VCR Audio Left Output, to VCR Scart

63 GOUT_TV Green Output, to TV Scart

64 ROUT_TV Audio Right Output, to TV Scart

6410

-01.

TBL

PIN LIST (continued)

3

IC-descriptions GB 4759502 & 59501 11.

FB SWITCH

4V0V

RGB SWITCH

C SWITCH

Y/CVBSSWITCH

C SWITCH

Y/CVBSSWITCH

C SWITCH

Y/CVBSSWITCH

CINCHSWITCH

AUX SWITCH

VCR SWITCH

TV SWITCH

64

6dB

6dB

-14dB

6dB

6dB

6dB

6dB

6dB

6dB

0/6dB

-14dB 0/6dB

-14dB 0/6dB

-14dB 0/6dB

STEREO/MONO

2 LOUT_TV

ROUT_TV

8 AOUT_RF

60

62

4

6

ROUT_VCR

LOUT_VCR

LOUT_AUX

ROUT_AUX

58

59 LOUT_CINCH

ROUT_CINCH

7

5 COUT_VCR

YCVBSOUT_VCR

25

27

31

SLOW BLANK,I/O MONITOR

SLB_TV

SLB_VCR

SLB_AUX

15

13

YCVBSOUT_AUX

COUT_AUX

3 YCVBS/OUT_TV

6dB 61

63

17

GOUT_TV

BOUT_TV

FBOUT_TV

1 RCOUT_TV

9 VOUT_RF

11 FILTERTRAP

B_ENCB_AUXG_ENCG_AUXR/C_ENCR/C_AUXMUTE

R/C_AUXR/C_ENCC_ENCC_VCRMUTE

MUTE

MUTE

MUTE

MUTE

MUTE

MUTE

MUTE

MUTE

MUTE

Y_ENCCVBS/Y_TVCVBS_STBCVBS/Y_VCRCVBS/Y_ENC

Y_ENC

CVBS_STBCVBS/Y_VCRCVBS/Y_ENCCVBS/Y_AUX

Y_AUX

L_ENCL_STBL_VCRL_AUX

R_ENCR_STBR_VCRR_AUX

L_ENCL_STBL_TVL_AUXR_ENCR_STB

R_TVR_AUX

L_ENCL_STBL_TV

R_ENCR_STBR_TV

L_VCRR_VCR

L_ENCL_STBL_TV

R_ENCR_STBR_TV

L_VCR

R_VCR

L_AUX

R_AUX

R/C_ENCC_ENCC_VCRC_TV

R/C_ENCC_ENC

C_AUXC_TV

Y_AUXCVBS/Y_TV

CVBS_STB

CVBS/Y_AUXCVBS/Y_ENC

Y_ENC

43

39

56

47

37

53

49

45

41

35

38

26

34

52

50

36

24

54

48

40

42

28

30

44

46

32

18

19FBIN_ENC

FBIN_AUX

BIN_ENC

BIN_AUX

GIN_ENC

GIN_AUX

RCIN_ENC

RCIN_AUX

CIN_ENC

CIN_VCR

YCVBSIN_AUX

CIN_TV

YCVBSIN_ENC

YCVBSIN_VCR

CVBSIN_STB

YCVBSIN_TV

YIN_AUX

YIN_ENC

LIN_ENC

LIN_STB

LIN_TV

LIN_VCR

LIN_AUX

RIN_ENC

RIN_STB

RIN_TV

RIN_VCR

RIN_AUX

21

22

SCL

SDA I2 CB

US

DE

CO

DE

R

STV6410

6410

-02.

EPS

BLOCK DIAGRAM

4

IC-descriptionsGB 48 59502 & 5950111.

1

RGB video processor with automaticcut-off control and gamma adjust

TDA4780

FEATURES

• Gamma adjust

• Dynamic black control (adaptive black)

• All input signals clamped on black-levels

• Automatic cut-off control, alternative: output clampingon fixed levels

• Three adjustable reference voltage levels via I2C-bus forautomatic cut-off control

• Luminance/colour difference interface

• Two luminance input levels allowed

• Two RGB interfaces controlled by either fast switches orby I2C-bus

• Two peak drive limiters, selection via I2C-bus

• Blue stretch, selection via I2C-bus

• Luminance output for scan velocity modulation(SCAVEM)

• Extra luminance output; same pin can be used as huecontrol output e.g. for the TDA4650 and TDA4655

• Non standard operations like 50 Hz/32 kHz are alsopossible

• Either 2 or 3 level sandcastle pulse applicable

• High bandwidth for 32 kHz application

• White point adjusts via I2C-bus

• Average beam current and improved peak drive limiting

• Two switch-on delays to prevent discoloration duringstart-up

• All functions and features programmable via I2C-bus

• PAL/SECAM or NTSC matrix selection.

GENERAL DESCRIPTION

The TDA4780 is a monolithic integrated circuit with aluminance and a colour difference interface for videoprocessing in TV receivers. Its primary function is toprocess the luminance and colour difference signals froma colour decoder which is equipped e.g. with themultistandard decoder TDA4655 or TDA9160 plus delayline TDA4661 or TDA4665 and the Picture SignalImprovement (PSI) IC TDA467X or from a feature module.

The required input signals are:

• Luminance and negative colour difference signals

• 2 or 3-level sandcastle pulse for internal timing pulsegeneration

• I2C-bus data and clock signals.

Two sets of analog RGB colour signals can also beinserted, e.g. one from a peritelevision connector(SCART plug) and the other one from an On-ScreenDisplay (OSD) generator. The TDA4780 has I2C-buscontrol of all parameters and functions with automaticcut-off control of the picture tube cathode currents.It provides RGB output signals for the video output stages.In clamped output mode it can also be used as an RGBsource.

The main differences with the sister type TDA4680 are:

• Additional features, namely gamma adjust, adaptiveblack, blue stretch and two different peak drive limiters

• The measurement lines are triggered by the trailingedge of the vertical component of the sandcastle pulse

• I2C-bus receiver only. Automatic white level control isnot provided; the white levels are determined directly bythe I2C-bus data.

• The TDA4780 is pin compatible (except pin 18) with theTDA4680. The I2C-bus slave address can be used forboth ICs. When a function of the TDA4780 is notincluded in the TDA4680, the I2C-bus command is notexecuted. Special commands (except control bit FSWL)for the TDA4680 will be ignored by the TDA4780.

IC-descriptions GB 4959502 & 59501 11.

2

RGB video processor with automaticcut-off control and gamma adjust

TDA4780

BLOCK DIAGRAM

Fig.1 Block diagram (continued in Fig.2).

handbook, full pagewidth

j

i

h

g

e

f

d

c

b

a

MGE875

200 µF1 µF

CLAMP

TDA4780

CLAMP

CLAMP

0.45 V1.43 V

PAL / SECAMNTSC

MATRIX

INPUTSELECTOR

FS

ON

1

FS

ON

2

FS

DIS

1

FS

DIS

2

Y - MATRIX

COLOURDIFFERENCE

MATRIX

ADAPTIVEBLACK

Y

Y

YBLGAMMA

Y gamma

BL

SATURATIONADJUST

HUEADJUST

BANDGAPREFERENCE

SUPPLY

CONTROL REGISTERS

TCPLRELC

BCOFYEXHHDTV

FSBLDELOF

SC5

YHI

REGISTERSDIGITAL TO ANALOG CONVERTERS

I2C-BUSRECEIVER

SANDCASTLEDETECTOR

8 DATA

BREN VSC5

DELOF

B

G

R

CL

HV

(H)

NMEN

10

11

12

R1

G1

B1

R2

G2

B2

2

3

4

6

7

8

−(B − Y)−(B − Y)

−(R − Y)−(R − Y)

YY

47 nF

10 nF

10 nF

10 nF

10 nF

10 nF

10 nF

10 nF

10 nF

13

FSW1 FSW2

FSW1 FSW2

1 18 26

CPDST YHUE GND

9 5

VP

UGAP

14

SC

2728

SCL SDA

R1

G1

B1

R2

G2

B2

ADBLR − Y

G − Y

B − Y

R

G

B

R

G

BY

YEXH

UGAP

sandcastle inputI2C-bus

VP = 8 V

Y - output /hue adjust

outputpeak darkstorage

6 DATA

IC-descriptionsGB 50 59502 & 5950111.

3

RGB video processor with automaticcut-off control and gamma adjust

TDA4780

Fig.2 Block diagram (continued from Fig.1).

handbook, full pagewidth

j

i

h

g

e

f

d

c

b

a

MGE876

82 kΩ

1 µF

TDA4780

CONTRASTADJUST

BRIGHTNESSADJUST

REGISTERSDIGITAL ANALOG CONVERTERS

TIMINGGENERATOR

B

G

R

B

BB

G

R

FSBLNMEN

HDTVBLANK

MP

CL

HV

(H)

WHITEPOINT

ADJUST

MPBLANK

WHITEPOINT

ADJUST

MPBLANK

WHITEPOINT

ADJUST

MPBLANK

BLUESTRETCH

VOLTAGECOMPARATOR

VOLTAGECOMPARATOR

MINIMUMDETECTOR

PEAK DRIVELIMITER

CUT-OFF RELATED

PEAK DRIVELIMITER

ABSOLUTE LEVEL

TCPL RELC

RELC

AVERAGEBEAM

CURRENTLIMITING

R

G

B

OUTPUTBUFFER

OUTPUTBUFFER

OUTPUTBUFFER

1st AND 2ndSWITCH-ON

DELAY

CUT-OFFCONTROL

LEAKAGECURRENT

COMPARATOR

OUTPUTCLAMP

BCL

15 16

CPDL

24

22

20

RO

GO

BO

19 CI

UGAP

UGAP

BCOFBCOF

252321

CRCGCB

17

CL

MOD2

220 nF330 nF 220 nF 220 nF

cut-off storageleakage storage

leakage andcut - offcurrent input

RGBoutputstovideoamplifiers

peak drivelimiting storage

average beamcurrent limiting

input

IC-descriptions GB 5159502 & 59501 11.

4

RGB video processor with automaticcut-off control and gamma adjust

TDA4780

SYMBOL PIN DESCRIPTIONFSW2 1 Fast switch 2 inputR2 2 Red input 2G2 3 Green input 2B2 4 Blue input 2VP 5 Supply voltage-(B – Y) 6 Colour difference input –(B – Y)-(R – Y) 7 Colour difference input –(R – Y)Y 8 Luminance inputGND 9 GroundR1 10 Red input 1G1 11 Green input 1B1 12 Blue input 1FSW1 13 Fast switch 1 inputSC 14 Sandcastle pulse inputBCL 15 Average beam current limiting inputCPDL 16 Storage capacitor for peak limitingCL 17 Storage capacitor for leakage current compensationCPDST 18 Storage capacitor for peak darkCI 19 Cut-off measurement inputBO 20 Blue outputCB 21 Blue cut-off storage capacitorGO 22 Green outputCG 23 Green cut-off storage capacitorRO 24 Red outputCR 25 Red cut-off storage capacitorYHUE 26 Y-output/hue adjust outputSDA 27 I2C-bus serial data input/acknowledge outputSCL 28 I2C-bus serial clock input

PINNING

IC-descriptionsGB 52 59502 & 5950111.

5

RGB video processor with automaticcut-off control and gamma adjust

TDA4780

FUNCTIONAL DESCRIPTION

Signal input stages

The TDA4780 contains 3 sets of input signal stages for:

1. Luminance/colour-difference signals:

a) Y: 0.45 V (p-p) VBS or 1.43 V (p-p) VBS,selectable via I2C-bus.

b) −(R − Y): 1.05 V (p-p).

c) −(B − Y): 1.33 V (p-p).

The capacitively coupled signals are matrixed toRGB signals by either a PAL/SECAM or NTSC matrix(selected via I2C-bus).

2. (RGB)1 signals (0.7 V (p-p) VB), capacitively coupled(e.g. from external source).

3. (RGB)2 signals (0.7 V (p-p) VB), capacitively coupled(e.g. videotext, OSD).

All input signals are clamped in order to have the sameblack levels at the signal switch input. Displayed signalsmust be synchronous with the sandcastle pulse.

Signal switches

Both fast signal switches can be operated by switchingpins (e.g. SCART facilities) or set via the I2C-bus. With thepin FSW1 the Y-CD signals or the (RGB)1 signals can beselected, with pin FSW2 the above selected signals or the(RGB)2 signals are enabled. During the vertical andhorizontal blanking time an artificial black level equal to theclamped black level is inserted in order to clip off the syncpulse of the luminance signal and to suppress hum duringthe cut-off measurement time and eliminate noise duringthese intervals.

Saturation, contrast and brightness adjust

Saturation, contrast and brightness adjusts are controlledvia the I2C-bus and act on Y, CD as well as on RGB inputsignals. Gamma acts on the luminance content of the inputsignals.

Gamma adjust

The gamma adjust stage has a non-linear transmissioncharacteristic according to the formula y = xgamma, where xrepresents the input and y the output signal. If gamma issmaller than unity, the lower parts of the signal areamplified with higher gain.

Adaptive black (ADBL)

The adaptive black stage detects the lowest voltage of theluminance component of the internal RGB signals duringthe scanning time and shifts it to the nominal black level.In order to keep the nominal white level the contrast isincreased simultaneously.

Blue stretch (BLST)

The blue stretch channel gets additional amplification if theblue signal is greater than 80% of the nominal signalamplitude. In the event the white point is shifted towardshigher colour temperature so that white parts of a pictureseem to be brighter.

Measurement pulse and blanking stage

During the vertical and horizontal blanking time and themeasurement period the signals are blanked to an ultrablack level, so the leakage current of the picture tube canbe measured and automatically compensated for.

During the cut-off measurement lines (one line period foreach R, G or B) the output signal levels are at cut-offmeasurement level.

The vertical blanking period is timed by the sandcastlepulse. The measurement pulses (leakage, R, G and B) aretriggered by the negative going edge of the vertical pulseof the sandcastle pulse and start after the followinghorizontal pulse.

The IC is prepared for 2fH (32 kHz) application.

Output ampli?er and white adjust potentiometer

The RGB signals are amplified to nominal 2 V (p-p), theDC-levels are shifted according to cut-off control.The nominal signal amplitude can be varied by ±50% bythe white point adjustment via the I2C-bus (individually forRGB respect).

IC-descriptions GB 5359502 & 59501 11.

6

RGB video processor with automaticcut-off control and gamma adjust

TDA4780

Automatic cut-off control

During leakage measurement time the leakage current iscompensated in order to get a reference voltage at thecut-off measurement info pin. This compensation value isstored in an external capacitor. During cut-off currentmeasurement times for the R, G and B channels, thevoltage at this pin is compared with the reference voltage,which is individually adjustable via I2C-bus for each colourchannel. The control voltages that are derived in this wayare stored in the external feedback capacitors. Shift stagesadd these voltages to the corresponding output signals.The automatic cut-off control may be disabled via theI2C-bus. In this mode the output voltage is clamped to2.5 V. Clamping periods are the same as the cut-offmeasurement periods.

Signal limiting

The TDA4780 provides two kinds of signal limiting.First, an average beam limiting, that reduces signal level ifa certain average is exceeded. Second, a peak drivelimiting, that is activated if one of the RGB signals evenshortly exceeds a via I2C-bus adjusted threshold.The latter can be either referred to the cut-offmeasurement level of the outputs or to ground.

When signal limiting occurs, contrast is reduced, and atminimum contrast brightness is reduced additionally.

Sandcastle decoder and timer

A 3-level detector separates the sandcastle pulse intocombined line and field pulses, line pulses, and clampingpulses. The timer contains a line counter and controls thecut-off control measurement.

Application with a 2-level 5 V sandcastle pulse is possible.

Switch on delay circuit

After switch on all signals are blanked and a warm up testpulse is fed to the outputs during the cut-off measurementlines. If the voltage at the cut-off measurement inputexceeds an internal level the cut-off control is enabled butthe signal remains still blanked. In the event of outputclamping, the cut-off control is disabled and the switch onprocedure will be skipped.

Y output and hue adjust

The TDA4780 contains a D/A converter for hue adjust.The analog information can be fed, e.g. to themultistandard decoder TDA4650 or TDA4655. This outputpin may be switched to a Y output signal, which can beused for scan velocity modulation (SCAVEM). The Youtput is the Y input signal or the matrixed (RGB) inputsignal according to the switch position of the fast switch.

I2C-bus

The TDA4780 contains an I2C-bus receiver for controlfunction.

ESD protection

The Pins are provided with protection diodes againstground and supply voltage (see Chapter “Internal pinconfigurations”). I2C-bus input pins do not shunt theI2C-bus signals in the event of missing supply voltage.

EMC

The pins are protected against electromagnetic radiation.

IC-descriptionsGB 54 59502 & 5950111.

BeneluxLoewe Opta Benelux NV / SALuitenant Lippenslaan 54 BB - 2140 AntwerpenTel. 0902 - 88002Fax 03 - 2354837

Loewe Opta Nederland B.V.Ravenswade 54A1NL - 3439 LD Nieuwegein (Utrecht)Tel. 030 - 803773Fax 030 - 803327

DänemarkSemi-Tech ConsumerElectronics (Denmark)A/SHørskætten 3DK - 2630 TaastrupTel. 43597777Fax 43597700

DeutschlandLOEWE OPTA GmbHService und Logistik / Zentrale Kronach96305 Kronach • Postfach 155496317 Kronach • Industriestrasse 11Tel. 0180 - 5221800Fax 0180 - 5221806DxJ-Tln.-Nr. 0926199Internet: http.//www.loewe.de

FrankreichSorep Import S.A. Loewe Opta11 Rue de la DuranceBP 954F - 67029 Strasbourg Cédex 1Tel. 3 - 88797250Fax 3 - 88797259

GriechenlandSOUND HELLAS S.A.Kleanthous Str. 10GR - 54642 ThessalonikiTel. 0030 - 31 - 856100Fax 0030 - 31 - 856300

GrossbritannienLinn Products LimitedFloors Road, Waterfoot,Eaglesham,Glasgow G76 OEPTel. 0141-3077777Fax 0141-6444262

GUSService Center Loeweul. Verkhnyaya Maslovka, d. 29RUS - 125083 MoscowTel. 095 - 2125043, 9566764Fax 095 - 2124710

Loewe ServiceEuropa • Europe

AustralienInternational Dynamics(Wholesale) PTY LTD78-80 Herald StreetAUS -Cheltenham, Victoria 3192Tel. 03 - 95850522Fax 03 - 95850179

Loewe ServiceÜbersee • Overseas

1-11-99

ItalienGeneral Trading Trust SpAVia Volturno 10/12 - Scala BI - 50019 Sesto Fiorentino (FI)Tel. 055 - 300342Fax 055 - 300343

MaltaMirage Holdings LTDFlamingo ComplexCannon RoadM - QormiTel. 497182Fax 445983

NorwegenCableCom ASBekkevn, 9N - 3218 SandefjordTel. 033 / 483348Fax 033 / 483333

ÖsterreichRobert Bosch AGPostfach 146A - 1011 WienTel. 01 - 797224500Fax 01 - 797224599

PirngruberElektronik Service & Vertriebsges. m.b.H.Dauphinestr. 226A - 4030 LinzTel. 0732 / 387282-0Fax 0732 / 387282-20

PolenPPHU PAROS Sp. zo.o.ul. Ustronie 1-3PL - 50-302 WroclawTel. 071 - 3222014, 3222017Fax 071 - 3221061

PortugalVideoacusticaComercio e Representacoes deEquipamentos Electronicos S.A.Estrada CircunvalacaoApartado 3127P - 1301-902 Lisboa CodexTel. 01-4170004Fax 01-4188093

USASENSORY SCIENCE CORP.7835 East McClain Drive,Scottsdale,ArizonaUSA 85260-1732Tel. 602 - 9983400Fax 602 - 9514404

IsraelRIF LTD29, Izhak Sade StreetIRS - Tel Aviv 67213Tel. 03 - 6240555Fax 03 - 6240303

Ver. Arabische EmirateSuper Trading EstablishmentP.O. Box 46409Abu Dhabi, United Arab EmiratesTel. 02 - 748787Fax 02 - 741156

Änderungen vorbehaltenSubject to modification

SchwedenElektronikservice i GBG ABFridkullagatan 23S - 41262 GöteborgTel. 031 - 811486Fax 031 - 812770

SchweizTelion AGRütistrasse 26CH - 8952 SchlierenTel. 01 - 7321511Fax 01 - 7301502

SlowenienJadran Export Import D.D.Partizanska cesta 69SL - 6210 SezanaTel. 067 - 391402, 391406Fax 067 - 391400

Spanien & Kanarische InselnGaplasa S.A.Conde de Torroja,25E - 28022 MadridTel. 01 - 7482960Fax 01 - 3291675

Tschechische RepublikTipa Spol. SR. O.Dolní námestí 9CZ - 74601 OpavaTel. 0653 - 624404Fax 0653 - 623147

UngarnAnnexKereskedelmi RészvénytársaságH - 1119 Budapest, Féhérvári út. 44Tel. 01 - 2066000Fax 01 - 3826040

ZypernPangratis Liveras & Son LTDLiveras Building7 Ajax StreetSaint OmologiteCY - NicosiaTel. 02 - 663496Fax 02 - 664212, 667936

ÿ

ÿ

CL96532158_013.pdf091299

IC-descriptions GB 5559502 & 59501 11.

HessenVAD Video- und Audio-DienstOstring 765205 Wiesbaden-NordenstadtTel. 06122/909180Fax 06122/909150

HessenFernseh-KesslerVeckerhagener Straße 5834233 FuldatalTel. 0561/813001, 813002, 813003Fax 0561/819185

Baden-WürttembergAVS-Zerweck GmbHHeppenheimer Straße 31-3368309 MannheimTel. 0621/7280611Fax 0621/7280610

Baden-WürttembergAV-Technik Wagner Zerweck GmbHSchulze-Delitzsch-Straße 1670565 StuttgartTel. 07111/7800423Fax 07111/7800426

Baden-WürttembergPavlek Service-CenterRilkestraße 571229 LeonbergTel. 07152/905116, 905117Fax 07152/905118

Baden-WürttembergAutronic Electronic-Service GmbHGreschbachstraße 2976229 KarlsruheTel. 0721/6299128Fax 0721/6299195

Baden-WürttembergCES Consumer-Electronic-Service GmbHKönigsberger Straße 1278628 RottweilTel. 0741/2490Fax 0741/249274

BayernJürgen DrösslerFernseh-Video-ServiceLerchenstraße 880995 MünchenTel. 089/35716831Fax 089/35716838

BayernNorbert NicklKopernikusstraße 21/2390459 NürnbergTel. 0911/4466460Fax 0911/4466414

MecklenburgWolfgang SchubertLange Reihe 38b17121 LoitzTel. 039998/10577Fax 039998/10566

MecklenburgWilhelm Meissner GmbHDorfstraße 118107 Lichtenhagen-DorfTel. 038209/81950Fax 038209/81951

MecklenburgService-Center BaumeisterNeue Reuhe 1418190 SanitzTel. 0381/7600062Fax 0381/7600063

BrandenburgIhlefeldt Sehen und HörenBerliner Str. 814532 GüterfeldeTel. 03329/62192Fax 03329/62296

Sachsen-AnhaltSchwanbeck & Gall GmbHWeißenfelser Straße 106712 ZeitzTel. 03441/86210Fax 03441/86211

Sachsen-AnhaltService-Partner VölkelCarnotstraße 2739120 MagdeburgTel. 0391/6287777Fax 0391/6287719

SachsenGKK Elektronik Service GmbHHofmühlenstraße 2501187 DresdenTel. 0351/4213424Fax 0351/4226826

SachsenHVS Lösbar GmbHLandsberger Straße 2304157 LeipzigTel. 0341/9126070Fax 0341/9126071

SachsenSemmler GmbHSchulstraße 3609337 Hohenstein-ErnstthalTel. 03723/65200Fax 03723/652028

ThüringenAudio-Video-ElektrikService GmbHLange Brücke 3599084 ErfurtTel. 0361/5626285Fax 0361/6430871

ThüringenGärtner-Elektronik-GmbH & Co.KGSaalbahnhofstraße 2107743 JenaTel. 03641/40840Fax 03641/408429

BerlinVHF Fernsehdienst GmbHUlrich CapitoEbersstraße 7810827 Berlin/SchönebergTel. 030/2133006Fax 030/2133007

HamburgMichael HinzAudio-Video-TV-ServiceAntonie-Möbis-Weg 522523 HamburgTel. 040/5708010Fax 040/5708017

NiedersachsenVideo Electronic ServiceInh. Gerhard WillUhlenhort 81a21435 StelleTel. 04174/71880Fax 04174/718824

NiedersachsenWolfgang Schütte GmbHTV-HiFi-MeisterwerkstattBernhardstr. 3626122 OldenburgTel. 0441/502035Fax 0441/508487

NiedersachsenDW-Service GmbHHaltenhoffstraße 52-5430167 HannoverTel. 0511/714073Fax 0511/7000997

Nordrhein-WestfalenTSW-Techn. Service WenzelKlingenbergerstraße 38-4032756 DetmoldTel. 05231/39513Fax 05231/39613

Nordrhein-WestfalenJürgen WolberElectronic - ServiceWeißenburgerstraße 5240476 DüsseldorfTel. 0211/443456Fax 0211/464433

Nordrhein-WestfalenHVS Lösbar GmbHHauert 1644227 DortmundTel. 0231/9753333Fax 0231/97533350

Nordrhein-WestfalenEWS Elektronik-ServiceDipl.-lng. Fred WenzelAuf der Jüchen 251069 KölnTel. 0221/6801585Fax 0221/6801588

Rheinland-PfalzHans Krempl / Haustechnik GmbHAugust-Horch-Straße 1456070 KoblenzTel. 0261/8909-0Fax 0261/83074

Loewe-Vertragswerkstätten • Loewe establishments

Telefon: FAXErsatzteilbestellungen: (0180) 522 1800 (01 80) 522 1806Status von Reparaturen: (01 80) 522 1805 (0 92 61) 99 412Support Farbfernsehen: (01 80) 522 1801 (0 92 61) 99 730Support Video/Camcorder (01 80) 522 1802 (0 92 61) 99 730Support Telefone/Telekom. (01 80) 522 1803 (0 92 61) 99 730Support HiFi: (01 80) 522 1804 (0 92 61) 99 730Support Home MultiMedia (01 80) 522 1807 (0 92 61) 99 730

Die wichtigsten Rufnummern der Zentrale Kronach:The most important phone numbers of the Kronach headquarters

Loewe-Service und LogistikLOEWE OPTA GmbHService + LogistikZentrale Kronach96305 Kronach • Postfach 155496317 Kronach • Industriestraße 11

Hinweis! Ersatzteilbestellung nur überService + Logistik / Zentrale 96317KronachNote! Spare parts orders only throughService + Logistics / Headquarters inKronach CL96532158_014.pdf

091299

3122 785 10120

Block and wiringdiagram, dismantling, exploded view and oscillograms 759502 & 59501 4.

4. Block and wiringdiagram, dismantling, exploded view and oscillograms

Blockdiagram

SLAVE PROCESSOR

RCKEYBOARD

POWER SUPPLY

St_by

HEADPHONE SCART DATA FILTER

AUDIO/VIDEO BACKEND

JBE(servo)

RAM ROM

HOST

Sti5505

I2S

S2B

MONO BOARD

A/V signals

I2C

P50

UDA1328T

L + R

C +LFE

Lr + Rr

Center_on

STV6410SCARTSWITCHING

TDA4780Color + Contsetting

I2C

CVBS/Y/C

RGB/YC/CVBS

CVBS

Y/C

RGB/YC/CVBS

P50 (to SLAVE)

RGB

Stereo_mute (optional)

Kill

8Vstab

3V3stab

+12VVideo

IC's and

audio

buffers

DAC

Headphone out

Lt + Rt

6

AUX

TV

SCART

SCART

DIG_OUT

AUDIO L+R

AUDIO L+R3

3

PCM

0dB

+9dB

+9dB

DAC

7316

7305

7401

OPTICALOUTPUT

DIGITALOUTPUT

1113

7104

OPEN/CLOSESTANDBY

PIN 8TV SCART

BLOCK DIAGRAMLOEWE

CL96532158_001.eps091299

Block and wiringdiagram, dismantling, exploded view and oscillograms 859502 & 59501 4.

Dismantling instructions

DISMANTLING INSTRUCTIONS See exploded view for item numbers

Power supply unit 1005⇒ remove connections

⇒ remove 2 screws 204 and

215 (board→frame)

⇒ remove screw 276 (mains

inled→backplate)

⇒ release snaps of spacers206 and 207

(board→frame)

⇒ demount board

DVD MODULE 82⇒

⇒ remove 4 screws200→ 203(loader bracket

2 → frame 181)

⇒ demount module

Display board 1002⇒ Remove 7 screws

27 → 33(board→ front), pay

attention to earth spring 24.

⇒ demount board

Front assy 1

⇒ remove 2 screws 75→ 76

(front 1 →frame 181)

⇒ unlock front from frame byreleasing successively 3snaps(on the left, in themiddle and on the right)

⇒ put front assy in front of theset(service position)

LOADER VAL3000 1⇒ Remove 2 screws 8, 9

⇒ Remove 4 suspensions

6 from loader bracket→

A/V board 1001⇒ remove flex connections to

Mono board

⇒ remove 1 screw 268

(scart→backplate 266)⇒ remove 2 screws 271 and

274 (cinches→backplate)

⇒ release snaps of 2 spacers

208 and 209(board → frame)

⇒ demount board

mounting

↑↓

demounting

Cover 151⇒ Remove 7 screws

174→177 at sides

171→173 at rearside

⇒ Lift cover at rearside toremove

Headphone board 1003

⇒ remove 2 screws34→35(board→ front)

⇒ demount board

Standby board 1003

⇒ Remove 2 screws

25 → 26(board→ front)

⇒ demount board

⇒ Remove volume knob bypulling it forward

Remove connections to Mono board

DVD MONO Board 7⇒

⇒ remove 4 screws10 → 13(mono board 7 →loader bracket 2)

⇒ remove carefully flexconnection to OPU and wireconnection to tray motor.

See also exploded view of DVD module

⇒ Remove flex connections toturntabel motor and sledgemotor.

⇒ demount board.

3

⇒ remove 2 screws 272 and

273 (digital and optical out)

36 37

CL96532158_003.eps091299

Block and wiringdiagram, dismantling, exploded view and oscillograms 959502 & 59501 4.

Exploded view

CL96532158_002.eps091299

Block and wiringdiagram, dismantling, exploded view and oscillograms 1059502 & 59501 4.

Exploded view

CL96532158_015.eps101299

Block and wiringdiagram, dismantling, exploded view and oscillograms 1159502 & 59501 4.

Wiringdiagram

1301

A/V BOARD

MONO BOARD

POWER SUPPLY

DISPLAY BOARD

HEADPHONE

SCART DATA FILTER

1100

16

1 51105

11091102

1 4

0205

1 12 1 4

0207

116 122

1300

1410

1

7

116122

1

12

1715SERVICE

1 71200

8003

1 HP_L2 GND3 HP_R4 +8Vaud5 GND6 GND7 -8Vstby

8005

1 +3V32 +3V33 +5V4 +5Vstby5 +6Vstby6 GND7 GND8 GND9 -8Vstby10 STB_CONT11 +12Vstby12 GND

800680078003

8001

80048002

8005

8001

1 +5Vstb2 STBKEY+3 STBKEY-4 O-CKEY5 IR_IN6 GND

8002

1 +12V2 GND3 +5Vstb4 -40V

8004

1 SCL2 GND3 SDA4 STB_CONT5 P50

8007

1 GND2 HSYNC3 GND4 PCM_OUT25 GND6 PCM_OUT17 NC8 SCL9 12Vstby10 SDA11 +6V 12 NC13 GND14 C_ENC15 GND16 Y_ENC

8006

1 P502 B3 G4 GND5 R6 CVBS7 GND8 0/6/12V9 -8Vstby10 +5V11 +5V12 KILL13 GND14 PCM_OUT015 LRCLK16 SCLK17 GND18 PCM_CLK19 CENTER_ON20 STEREO_MUTE21 DIG_OUT22 GND

16021501

1604

1603

1600

1101

16

12

1350

CL96532158_008.eps091299

WIRING DIAGRAM LOEWE

8008

1

2

8008

1 GND2 TV SCART PIN8

Electrical diagrams and Print-layouts 1259502 & 59501 5.

5. Electrical diagrams and Print-layouts

Power supply

360-90349.939: 100uF/385V360-90349.901: 150uF/400V360-90348.983: 150uF/250V

# 360-90348.964: 100uF/385V

* = RESERVED ITEM NUMBER

To be left out of DVD2B version @

4250 To be included for DVD2B version @

To be left out of DVD2B version @

To be left out of DVD2B version @

@ DVD2B version: 360-90349.939 used in Xemix and Auro

0205 D150205 B150205 D150205 E150205 E150101 A 10101 B 1

2126 B 42125 A 42121 B 62120 B 32114 I 72113 H 72111 G 7

2202 I102201 I102133 E 72132 E 82131 A 92129 E 52127 C 9

2230 E112225 G132222 F132221 F102220 F112211 E102210 E11

2250 C112241 A102240 B112239 E142238 E132233 B142231 D10

3103 H 23102 H 23101 G 22261 C102260 D112259 C142251 C10

0205 I160205 A150205 D150205 C150205 I160205 I160205 H16

3110 G 43109 J 43108 J 33107 J 33106 K 23105 I 23104 I 2

3122 A 33120 B 23116 I 63115 I 73113 H 73112 H 73111 F 6

3129 E 63128 D 93127 D 83126 D 83125 C 83124 A 43123 C 5

3201 H103136 C 63135 E 93134 D 53133 B 13132 B 73131 B 6

3222 F123221 G123206 J113205 J113204 I113203 K123202 I11

3233 E123228 G153227 G143226 G143225 G133224 G133223 H12

3255 C123254 C113253 C123238 E133237 E143236 E143235 E12

5125 C 85120 B 34250 B133260 D113258 D143257 C133256 D13

5240 A155239 D155233 B155230 D155222 F155210 F155131 A 9

6129 E 56120 B 56114 I 86113 H 76111 C 66110 B 65259 C14

0207 D160207 C160207 B160207 A160207 A160206 K130206 J13

6256 D136250 C106240 A106230 D106220 F106210 E106132 E 8

7223 G127221 F127201 J107200 H 97125 C 87110 G 36260 C10

7255 C127237 E137236 D137235 E127233 B147228 G147226 G13

7259 C147256 D12

2101 G 21125 A 31120 A 20207 F160207 D160207 F160207 C16

2110 J 42109 J 42107 J 32106 K 22104 I 22103 H 22102 H 2

4 5 61 7 8 9 10 11 12 13 14 15 162 173

H

G

F

K

E

D

C

B

A

J

I

H

G

F

K

E

D

C

B

A

J

I

4 5 61 7 8 9 10 11 12 13 14 15 162 173

2238

*

2132*

47pF

/1KV

2127

2120330nF

2109

1.5n

F

4.7n

F

2104

680pF

2102

*

2103

*

2107

27nF

2106

82pF

2101

100n

F

2114

2.2n

F

2113

2N2/

400V

2125

2N2/

400V

2126

100n

F

2111

330pF/1KV

2261

2131

2.2nF

2202

100nF

2201

100n

F

2221 *

2211 *

1nF/1KV

2251

2231 *

2241 *

2225

100n

F

3238*

3136

270K

3131

270K

31356R8

3126

4R7

22R

3111

3125 1K

3127 1R 3128 1R

15K

3104

22K3102

3K63103

311010K

18K

3108

180K

3107

15K

3105

680R

3106

180R

3116

82K

3101

1K3115

330R

3109

3124220R

3123

18K

312910K

31222R7

3133

10M

Only for US versions

3134

18K

3112150R

311333R

322815K

3227 10K

322610K

3225 10K

322410K

3223 10K

3222 1K

3221

1K3

325810K

3254 1K

3255680R 32

5727

K

325327K

3256470R

3204270R

3205 4K

7

3201

10R

3202 1K

8

3233 1K

323515K

3236

4K7

3237

4K7

3206 0R

326010R

3203100R

4250

5239

3120

385V

2133

100u

F/25

V

2121

#

2.2u

F/50

V

2110

2129

4.7u

F/50

V

100u

F/6V

3

2222

220u

F/10

V

2220

3u3/

50V

2260

100u

F/25

V

2259

220u

F/16

V

2250

100u

F/6V

3

2239

4700

uF/6

V3

2210

1000

uF/1

0V

2230

470u

F/25

V

2240

100u

F/6V

3

2233

T2.5AH250V

1120

F223

F222

F221

F220

F219F218

F216 F217F215

F214

F213F212

F211

F210F209F208

F207

F206F205

F204F203

F201 F202

F226

F227

F224

F225

F101

F102

F103

F104

F105

F106F1

08F1

09

F107

F110

F111

-8V

-8V

+12V

+12V

+12V+6V

+6V

+6V

02062

02074 -40V

02072

GND

02071

+12V

02073 +5V Stand By

02075 +5V

02076

02077 GND +2V9

02056

02052

+3V3

020512 GND

02078 -40V

02061

02059 -5V (-8V Stand By)

02053 +5V

02079 +2V9

02051

+3V3

020510 Stand By

02055 +6V Stand By

020511+12V

02057

02058

02054 +5V Stand By

1

0101

2

0101

GNDs

GNDs

GNDsGNDs

GNDs GNDs

GNDs

GNDs

6132

BYD33D

BYV1

0-40

6113

6114

BYD33D

BYD33D

6220

BYD33J

6260

BYD33D

6250

PBYR1060

6210

PBYR1080

6230

BYW29F-200

6240

6110

BYD3

3J

6111

BYD3

3J

BAS16

6256

6129

BZX8

4-C2

4

7201

KA43

1LZ

7237KA431LZ

7236STP16NE06

7228BC847

7223BC847

7235BC847

ETD295131

7

1

9

5

17

13

16

15

14

18

12

11

10

7221

LM317LA

I O51

25BE

AD

525910uH

6.8uH5210

522210uH

10uH5230

1uH5240

523310uH

MC44603P

7110

7

10

8

13

5

4

3

6

16

15

12

11

9

1

2

14VOLTAGEMANAGEMENT

OVER

UVL01

Vref Voc

VOLTAGEOVER

PROTECT

GND

OUT

VC

DETECTDEMAGNETIZATION

CT

SYNC INPUT

STANDBYRP

STANDBYRF

E/A OUT

VOLTAGEFEEDBACK

2.5V

AMPERROR

(reduced frequency)

iref

FOLDBACKINPUT

VSB OUT

Vstby

CURRENTSENSE INPUT

Vref iref

SOFT START& DMAX

SHUTDOWNTHERMAL

iref

LATCH

Vref

UVL01

BUFFER

FOLDBACK

DEMAGNETISATIONMANAGEMENT

OSCILLATOR

STANDBY

reference

SOFT-STARTCONTROL

block

=1

Dmax &

initialization block

Q

supply

VOSC

VOSC PROT

SENSECURRENT

Vref enable

Reset

Set

6120

S1NB801

2

3

4

5120

7125STP3N60FI

1125

31320.27R

7256BC857

7226BC857

7255BC337-40

7233

78M05G

I O

7259

79M05

I

G

O

7200

CQY80NG

POWER SUPPLY

CL 96532065_042.eps261099

Electrical diagrams and Print-layouts 1359502 & 59501 5.

Power supply

+

~~ -

+

~~ -

XHXH 3122 423 30336

1120

0101

3129

31

34

71

1021

20

21

29

31

23

11

25

21

10

31

20

31

22

3133

31

24

5120

61

13

31

15

00

00

2121

31

25

61

11

21

25

2126

2127

3101

61

20

3132

31

26

31

27

31

28

61

10

2133

7200

22

31

71

25 2131

61

32

61

14

21

32

3135

51

25

22

11

5131

22

41

92

61 72

01

2239

92

60

2251

92

62

62

10

62

30

2210

22302250

62

50

62

20

2240

22

20

2261

6260

9250

72

21

62

40

22

60

22

21

5210

0206

92

30

02

05

72

36

5259

7237

7255

3235

5230

5239

22

33

2259 3228

32

33

7259

92

10 02

07

52

33

92

14

72

33

22

22

5222

5240

1 2 3 4 5 6 7 8 9 10 11

1 2 3 4 5 6 7 8 9 10 11

D

C

B

A

D

C

B

A

0000 C 5 0101 B 1 0205 C 10 0206 D 10 0207 A 10

1120 D 2 1125 C 3 2110 D 3 2120 C 2 2121 C 4

2121a C 4 2125 B 3 2126 A 3 2127 B 5 2129 D 3

2131 C 7 2132 C 6 2133 D 6 2210 C 8 2211 C 8

2220 A 8 2221 A 8 2222 A 9 2230 B 8 2231 B 8

2233 B 10 2239 D 9 2240 A 8 2241 A 8 2250 B 8

2251 B 8 2259 B 9 2260 A 9 2261 A 8 3101 D 4

3115 D 4 3120 C 23120a C 2 3122 C 3 3123 B 3

3124 B 3 3125 D 5 3126 B 5 3127 B 5 3128 B 5

3129 D 3 3132 A 5 3133 A 3 3134 D 2 3135 B 6

3228 B 11 3233 B 9 3235 C 10 5120 A 2 5125 B 5

5131 B 6 5210 D 10 5222 A 9 5230 C 10 5233 B 10

5239 C 10 5240 A 9 5259 C 10 6110 B 4 6111 C 5

6113 D 4 6114 C 6 6120 B 3 6132 C 6 6210 C 8

6220 A 7 6230 B 8 6240 A 8 6250 B 7 6260 A 8

7110 D 3 7125 C 5 7200 D 7 7201 D 8 7221 A 9

7233 B 10 7236 C 9 7237 D 9 7255 B 9 7259 B 9

9210 A 10 9214 A 11 9230 C 9 9250 B 9 9260 B 7

9261 D 7 9262 B 8

T2.5A H 250V

Componentside

1234567891011

1234567891011

D

C

B

A

D

C

B

A

2101 C 32102 C 32103 D 32104 D 32106 D 3

2107 D 42109 C 42111 D 32113 C 52114 C 6

2201 D 72202 D 82225 A 112238 C 93102 D 3

3103 D 33104 D 33105 D 33106 D 33107 D 4

3108 D 43109 C 43110 D 33111 D 63112 D 4

3113 D 43116 D 43131 B 43136 B 43201 D 7

3202 D 83203 D 83204 D 83205 D 83206 D 7

3221 A 93222 A 93223 A 103224 A 103225 A 11

3226 A 113227 A 113236 C 93237 D 93238 C 9

3253 A 93254 A 93255 B 93256 B 103257 B 10

3258 C 103260 A 94121 D 44125 C 54128 C 5

4250 B 96129 D 26256 B 107223 A 97226 A 11

7228 A 117235 C 107256 B 10F101 C 1F102 B 1

F103 B 3F104 A 2F105 B 4F106 B 4F107 B 6

F108 A 3F109 D 3F110 D 4F111 D 4F201 B 10

F202 B 10F203 C 11F204 C 11F205 C 10F206 C 11

F207 B 11F208 A 10F209 A 9F210 B 11F211 C 10

F212 C 11F213 C 11F214 C 11F215 C 10F216 A 10

F217 A 10F218 A 10F219 A 10F220 C 10F221 C 11

F222 C 11F223 B 11F224 D 7F225 D 8F226 D 9

F227 D 9

3122 423 30336

3105

31

063110

6129

21

06

21

04

3104

3112

2111

31

02

3113

4121

31

16

3131

4128

3109

41

25

3136

31

03

31

07

31

08

21

01

21

02

21

03

2107

21

09

21

13

3111

21

14

22

013203

32

01

22

02

32

04

32

06

32

02

3205

3260

32

22

22

38

7235

3258

62

56

3238

32

36

32

37

32

56

325322

25

72

56

32

54

42

50

3221

722332

24

32553257

32

23

32

27

32

26 72

26

72

28

32

25

Copperside CL96532065_044.eps120799

Electrical diagrams and Print-layouts 1459502 & 59501 5.

TROUBLESHOOTING POWER SUPPLY UNIT

power supply OK

Check DC voltages

+12V, +5Vstby, -5V, +5V, +3V3, +2V9

These voltages will be somewhat higher than specified

Check DC voltages

+12V, +5Vstby, -5V, +5V, +3V3, +2V9

OK

YES

NOK

NOK

NOK

OK

NOK

NOK

Disconnect the power supply from the MAIN Board

Connect dummy load resistors 10W(min 5W):

10 ohm at +3V3, 15 ohm at +12V and ground

⇒ power supply is OK

⇒ check:

digital board

A/V MUX board

display board

OK

NO

OK

OK

OKCheck the +3V3 and12V

⇒ +12V: check 6240, 2240, 5240

⇒ +3V3: check 6210, 2210, 5210

⇒ check the path of the fault voltage: 7233, 7259, 7236,

7237, 7221

⇒ Standby circuit

connect the mains inlet to a mains

isolated variac

turn input voltage up and check across C2121

the voltage

this voltage should be ± 1,41 x Vin AC

⇒ check the functionality of the following components:

1120, 3122, 5120, 6120, 2121

check Vcc on pin 1 IC7110

Vcc = 12V...... 16V

is power supply ticking?

⇒ check the load on the secundary output

⇒ check overvoltage protection: 3135,6114,2114,3115,3116

⇒ check oscillator voltage on pin 10 of IC7110:

check 2102,3110, replace 7110

⇒ check drive circuit: gate voltage of MOSFET 7125,

components 3112,3113,2113,3125

⇒ check working of regulation circuit

• measure voltage on pin 6 of IC7110 with oscilloscope

• if > 2.5V check the regulation circuit: 7200, 7201,

6275,6278,3201,3202,3204,3205,3206,2201,2202

3104,3105,3106,3109,2104,2106,2109

⇒ Check start circuit and Vcc supply:

3123,3134,2129,6129,3129,3111,2111,3133

⇒ replace 7110

Power supply is OK

CL 96532065_072.eps261099

Personal notes:

Electrical diagrams and Print-layouts 1559502 & 59501 5.

Headphone panel and standby PWB

3203 E6

F122 I7F300 D4

F305 C6F306 B4F307 E5F308 B4

3206 A5

F310 D2F311 D6F312 D3

F111 H11

7100-A I5

7101 G47102 H107103 I7

2106 H2

F117 G6

2200 A5

F301 A2F302 B6F303 B3

2204 C6

F304 B2

2207 E72209 E62210 A5

7200-A B57200-B D5

F113 H11F114 I8F115 G4F116 G5

3101 H4

F118 H8F119 H9F120 H7F121 H9

3113 H10

F309 D2

3115 H93116 H83117 I73118 I73200 B63201-A B33201-B D33202 B6

11

3205 E6

A

3207 C53999 I16101 I6

OPTION

7100-B H8

G

H

I

F313 E6

0101 E8

7999 I1F101 H2F103 H3F104 H4F105 H5F106 H7F107 H6F108 I6F110 H10

1200-4 B2

F112 H11

1200-6 D21200-7 C21201 C82100 H42101 H32102 H52103 I62105 I4

H

2107 G3

OPTION

2201 B42202 B72203 B5

2206 E4

STANDBY

OPEN/CLOSE

1

2211 C5

3

3102 H43103 H53104 I53105 H53108 H83109 G43110 G53111 G53112 G5

8

3114 H8

3 4 5 6 7 8 9 10

D

E

4 5 6 7

12

9 10 11 12 0100 D8

F

0102 E80103 E81100 G21101 H121102 G111103 G111200-1 D21200-2 B21200-3 A2

1 2

B

C

D

1200-5 C2

E

F

G

100n

2102

2

I

A

B

C

2100

10n

3101

10K

+8V

-8V

F307

F301

1102

EVQ21

0100

3103

100K

2206

0103

F107

12p

F120

3201-B10K

5

4

6

F101

8

4

10K3201-A 2

1

3

7100-BLM833D

5

6

7

F117

+8V

10R

3203

2

3

4

5

6

F116

EH-B11011

3205

2209100n

F311

F108

22R

F305-8V_1

F115

4K7

3110

+8V_1

01012K

7

3112

F315

F314

F110

F111

F302

12R

3207

2211

22u

-8V

3206

12R

22071n

2103

3n3

F106

EH-B1200-4 4

270K

3108

1

F312

BC847B7101

1200-1EH-B

TCA03727200-A7

8

1

2

4

F308

F310

PB HPDVD LOEWE

2107

100n

2101

10n

3105

330K

3

2

1

8

4

2200

100n

LM833D7100-A

F103 F104

0102

F105

F300

2203

100n

+8V_1

10n

2105

6

5

3

2

4

F112

100n2204

7200-BTCA0372

22R3202

10R

3200

F313

1n2202

-8V_1

HLJ15401201

F113

3104

100K

47K

3109

1100EH-B

1

2

100K

3118

7103BC847B

22u

2210

F118

F122

F121

F119

EH-B5

4K7

3115

F306

1200-5

F11

4

F304

EH-B1200-6 6

EH-B1200-7 7

3102

10K

2106

10n

12p

BC847B7102

2201

F303

2K2

3113

1103

EVQ21

6101

BZX284-C3V9

F309

3114

3K9

3111

3116

100K

100K

EH-B2

22K

3117

+5V+5V

+5V+5V

1200-3EH-B

3

1200-2

+5V

+5V+5V +5V +5V

HEADPHONE PCB

SCART DATA FILTER PCB

TO

DIS

PLA

Y P

CB

FR

OM

A/V

PC

BF

RO

M A

/V P

CB

CL965320158_004.eps091299

Electrical diagrams and Print-layouts 1659502 & 59501 5.

Headphone PWB

4263.2

4263.2

CL965320158_005.eps091299

Personal notes:

Electrical diagrams and Print-layouts 1759502 & 59501 5.

Display

VDD

sink o.drain

V25

V26

V27

V28

V29

V30

V31

V32

V33

V34

V35

V36

VKK

-SCK1

SI1

SO

1

P03

P04

P05

P06

P07

80k pull down80k pull down80k pull down

drain

P6-P9 source open drain

sour

ce o

pen

drai

n 80

k p.

d.80

k pu

lldo

wn

sink open

3-B. I/O P3

AIN5

AIN6

AIN7

AIN10

AIN11

AIN12

AIN13

V0V1

V2

V3V4

V5

V6

V7

V8

V9

V10V11

V12

V13

V14

V15V16

V17

V18

V19

V20V21

V22

V23

V24

output port with latch output port with latchout w. latch P8

out.

port

w. l

atch

P9

8-B

it h.

bre

akdo

wn

v.

8-Bit high breakdown voltage 8-Bit high breakdown v.

5-B

it h.

bre

akd.

v.

out w

. lat

chP

D

VS

S

VAREF

VASS

XO

UT

XIN

-RE

SE

T

TE

ST

XT

OU

T

XT

IN

-ST

OP

-IN

T0

-IN

T1

TC

2

-DV

0

-SCKO

AIN0

AIN1

AIN2

AIN3

AIN4

P1(tri state)8-Bit Input/Output

P4

(tri-

stat

e)8-

Bit

Inpu

t/Out

put

SC

A

SC

L

INT

4

INT

2

TC

1

TC

4

CounterProgramROMRAM

8-Bit h. break. v.

CPU

VFT driver circuit (automatic display)

8-Bit A/DConverter

8-Bit Input/Output(tri-state) P0

3-Bit In/Outputwith latch P2

4-B

it In

/Out

put

(tri-

stat

e)P

5

P6P7

DEMBANDPASS

CTRLCIRCUIT

AGC

INP

PIN

VCD

D

SHUFFLE

CHAPTER TRACK

SCAN A-B

FTS TOTAL TRACK

TRACKTITLE

TIME

CHAPTER

VD

TITLE

REPEAT

7107 I117108 A17109 B27110 C17111 F47112 B137150 H2

STOP

14

A

B

C

D

E

F

G

I

1100 C111101 C111102 D11104 G61105-1 F141105-2 G141105-3 F141105-4 G141105-5 G141106 D111107 D11

1 2 3 4 5 6 7 8 9 10

6150 H67101 C57102 E27103 H107104 H57105-A I67105-B I77105-C H77105-D I77106 I10

7 8 9 10 11 12 13

+5V stb

PAUSE

SCA

VFD GRID 13

(-40V)

NEXT

GND

VFD GRID 12

1108 D121109 H141150 A52100 B62101 B72102 B72103 D9

H

I

A

B

C

D

E

F

G

H

2114 G42115 G62116 G72117 G132118 G142119 H92120 H10

+12V

VFD GRID14

OPTION

PLAY

PREV

SCL

-40V

OPTION

2121 H42122 H42123 I82124 I102125 I52126 A12

11 12 13 14

1 2 3 4 5 6

3106 C133107 C143108 C143109 C13110 D13111 E93112 E4

OPTION

STBY control

P50_in

INFO : FIL2-FIL1=4.8Vac-RMS

3113 E23114 F113115 F113117 F53119 F43121 G33122 G63123 H113124 H63125 H43126 H12

2104 D22105 E12106 E22107 E22108 E32109 E32110 F42111 F32112 F52113 F6

3127 H103128 I123129 I63130 I103131 I53132 I123133 I63135 A123136 A133137 A123138 A123139 B136100 E36101 F26102 G36103 A136105 I4

2127 A122128 I62129 H102130 H123100 A13101 B23102 C113103 C123104 C123105 C13

F12

9

F185

BZX284-C106101

7103

BC807-257106

210447u

BC337-40

2116

+5Vstby

22p2115

22p 211822p

4K7

3115

+5Vstb

+5Vstb

2129

22u

+5Vstb +5Vstb

VFIL_DC

3126330R

F17

1

79

8

80

9

40

3121100K

64

65

66

67

68

69

7

70

71

72

73

74

75

76

77

78

5

50515253545556575859

6

60616263

34

35

36

37

38

39

4

414243444546474849

20 21 22 23 24

25

26

27

28

29

3

30

31

32

33

TMP87CH74F

7101

1 10 11 12 13 14 15 16 17 18 192

10K

3114

2105

F174

33n2106

33n210833n

F138

210933n

2126

220p

U5

EVQ21

1100

4K73107

BC847B7111

33n2119

7107BC847B

10K3105

F12

3

F111

2102100p

+5Vstby

+5Vstby

+5Vstb

10R3106

312410K

BC857B7104

VKK

6150LTL-1CHPE

VKK

VKK

F141

F131

F157

F187

F160

F114

220p

2127

F124

F183

F116

F154

F158

F182

+5Vstb

100p2100

330R

3123

+5Vstb

VKK

F173

VKK

F177

F112

F115

F159

211033n

F186

F134

+5Vstb

100p2101

+5Vstby

2125100n

F132

3122

+5Vstb

22p2128

10K

1104

EVQ21

1101

F144

F137

F162

F17

0

4K7

F16

9

4K73102 3103

+5Vstb

F12

6

F152

7105-D74HCT00D

12

13

7

14

11

F149

47K3133

DVDVIDEO - LOEWEPB DISPLAY

1105-33

F135

BC847B7112

F167

4K7

3128

F161

F176

31044K7

+5Vstb

10K

F166

31254R7

3112

6

F140

F181

1109EH-B1

2

3

4

5

7105-B74HCT00D

4

5

7

14

6

U4

F12

2

+5Vstby

+12V

2130

22p

33n2112

F13

0

F12

1

1102

EH-B

1

2

3

4

MC79L247102

3GND

2IN

1OUT

33n2121

F12

06102BAS216

1K

3117

27K

3136

220R3139

6103BAS216

F148

F110

F16

5

41n2113 1105-4

10u

3127470R

212247u

2120

F153

10u

2111

F147

F150

F136

F139

BZX284-C8V2

311310K

6100

F19

2

F19

5

F19

1

F19

4

F19

0

F19

3

10K3132

211722p

82K3100

+5Vstby

1105-22

1105-55

F11

7

VFIL_DC

+5Vstby

F12

5

212333n

EVQ21

1106

F188

F12

8

+5Vstb

F146

+5Vstb

+5Vstb

F143

F145

10K

3119

U3

82K3101

F184

10K

3111

+5Vstb +5Vstb

1105-11

+12V

+5Vstb

100K

3138

+5Vstb

+5Vstby

47K

3137

7110BC847B

7109BC847B

22u2124

7108BC847B

F163

F189

TSOP17367150

1GND

3

OUT

2

VS

21141n

F178

270R3129

F156

+5Vstb

F113

EVQ21

1107

VKK

EVQ21

1108

22u2107

F133

82K

F11

9

F155

3109

F151

F12

7

3110

4R7

F11

8

3

F142

F17

2

22K

3135

74HCT00D7105-A

1

2

7

14

33n

2103

3130470R3131

47K

9

10

7

14

8

6105

BAT254

F179

74HCT00D7105-C

10K3108

4041424344454849 567891819 2202122232432333435363738391150

14-MT-27GNK

11011121314151617

FIL2

STBKEY-

STBKEY+

STBKEY-

O-CKEY

IR_IN

IR_IN

P50

P50_in

P50_out

P50P50_in

FIL1

V14V15V15

V14

V13

FIL2

O-CKEY STBKEY+

V13

P50_out

FIL1

FROMPOWER SUPPLY

FROM MONO BOARD

FROM SCART FILTER PCB

CL965320158_006.eps091299

Electrical diagrams and Print-layouts 1859502 & 59501 5.

Display PWB

4261.2

4261.2

CL965320158_007.eps091299

Electrical diagrams and Print-layouts 1959502 & 59501 5.

DISPLAY PCB OK.

NO DISCPOWER ON

DISPLAY?

• Check presence of high pulses at pin 23 of IC7104 while pressing a key on remote control.

• Check IR receiver 6610.

• Check safety resistor R3131.

• Diagnostic software “Player script” : Remote control test.

• Check if voltage at connector 1117-1 is 4.9V when power on (no light)

• Check if voltage at base of Tr 7109 is 4.9V when power on (no light).

• Check if voltage at connector 1117-1 is 3.33V during standby (light).

• Diagnostic software “Player script” : LED test.

• Check matrix scanning at pin 36 and 37: see test instructions.

• Check matrix scanning at pin 26,27,28,29,30,31,32,33.

• Diagnostic software “Player script” : Keyboard test.

• Check supply voltages⇒ The display pcb uses a 24V stabiliser(7112) in combination with a 10V zenerdiode(6102).⇒ Check input voltage: at connector 1115-4: -40V ±5%⇒ Check output voltage at anode of Diode 6102: -10V ±5%⇒ Check stabilizer 7112 output (VKK): -34V ±7%⇒ Check +5Vstb voltage at connector 1115-3: +5V ±5%⇒ Check safety resistor R3117⇒ Check +12V at connector 1115-1: +12V ±10%

• Check filament voltage⇒ AC voltage is created via uP output pin 19 generating a 42kHz (duty cycle 45/55) square

signal.⇒ Check frequency : 42kHz ±10%⇒ Check buffered square output at emitter of transistor 7105; low level: 800mV, high level:

10.7V⇒ Check DC decoupling: check RMS voltage between FIL1 and FIL2 lines:

3.9Vrms<Vfil<5.2VrmsThe Vfil_DC level at kathode of diode 6101 should be –25.8V ±10%

• Check oscillator frequency of 8MHz at pin 8 of IC7104

• Check reset circuit around transistor 7108: see test instructions of reset circuit.

• Check timing and level for all grid lines(G1→G14): see test instructions grid lines.

• Check timing and level of segment lines(P1→P10): see test instructions segment lines.

• Diagnostic software “Player script” : Display test.

NO

YES

Key FunctionNO

YES

Standby LED off?

YES

Remote control?NO

YES

TROUBLESHOOTING DISPLAY BOARD

NO

CL 96532065_057.eps130799

Testing of A/V board can be done using diagnostic software “Player script”.Mono board is used to generate a sound with the sound tests SND-1 and SND-2 or a VIDEO signal with thepicture test PIC-1. Functional control of scart switching and RGB video processing is also possible. Seedescription in chapter “Diagnostic Software: Script Interfaces”

SOUND OK

Diagnostic Software

NO SOUND ONAUDIO CINCH 1400

POWER SUPPLY?

• Check DAC IC 7401

• Check C2455, C2459, C2461, C2464. 2477, 2480, 2484,2487 NP0 TYPE?

• Check OPAMPS 7403, 7408.

• Check ELCO'S 2456, 2462, 2466, 2475, 2481, 2485.

• Check OPAMPS 7403, 7408.

• Check KILL transistors 7404, 7405, 7406, 7407, 7408,7409, 7410, 7411.

• Check resistors 3453, 3464, 3475, 3482, 3493, 3502.

• Check OPAMPS 7403, 7408.

• Check KILL transistors 7404, 7405, 7406, 7407, 7408,7409, 7410, 7411.

• KILL: -8V DURING PLAY?

• Check for analog signal at outputs of DAC IC 7401: pin1,2,4,5,28,29,31,32 (testpoint 14).

• Check DAC IC 7401

• Check VREFA on pin 30 of DAC 7401: 1.65V?

• Check testpoints 7, 8, 9, 10, 12, 13.

• Check flex connection to mono board

• Check mono board

• Check supply voltages 3V3(IC 7400), +8Vaud(IC 7304),-8Vstby(R3615), +12Vstby(T7333).

• Check flex connection to mono board.

NO

YES

PCM_OUT[0:2]LRCLK, SCLK

PCM_CLK?

NO

YES

NO

YES

AUDIOCINCH OUTPUTS

Testpoint 15?

NO

YES

AUDIOAT OUTPUTS OF DAC 7401

?

NO

YES

LEVEL OK?

YES

N0

DISTORTION?

• To put set in “Player script”, press keysSTOP+OPEN/CLOSE simultaneously and connect tomains. Proceed until display shows .

• After a second, the display shows:During this test, an audio pink noise signal will besent to the audio cinches and the audio outputs of thescarts..

TROUBLESHOOTING A/V BOARD

AUDIO PART

" APP SND-1"

" SCART DVD "

CL96532126_002.eps261099

Electrical diagrams and Print-layouts 2059502 & 59501 5.

Audio-1

PM3392A

ch1

CH1 2 V~ MTB 500ns ch1+

1

PM3392A

ch1

CH1 2 V~ MTB10.0us ch1+

1

PM3392A

ch1

CH1 2 V~ MTB 100ns ch1+

1

PM3392A

ch1

CH1 2 V~ MTB 100ns ch1+

1

PM3392A

ch1

CH1!2.00 V~ MTB 500ns ch1+

1

PM3392A

ch1

CH1!2.00 V~ MTB 500ns ch1+

1

PM3392A

ch1

CH1!2.00 V~ MTB 500ns ch1+

1

PM3392A

ch1

CH1! 200mV~ MTB10.0ms ch1+

1

PM3392A

ch1

CH1!2.00 V~ MTB 500ns ch1+

1

PM3392A

ch1

CH1! 200mV~ MTB10.0ms ch1+

1

PM3392A

ch1

CH1! 200mV~ MTB10.0ms ch1+

1

TP15: ANALOG OUT AUDIO CINCH(PINK NOISE)

CL96532126_003.eps261099

SOUND OK

Diagnostic Software

NO SOUND ON

AUDIO CINCH 1402

TV- & AUX SCART

AUDIO TOHEADPHONE?

• Check SWITCH 7413

• Check OPAMP 7414

• Check KILL transistors 7415, 7416, 7419, 7420

• Check HPR and HPL at conn.1410-1,3 (testpoint 16)

• Check OPAMP 7403-C,D

NO

YES

AUDIOCINCH 1402

?

NO

YES

• To put set in “Player script”, press keysSTOP+OPEN/CLOSE simultaneously and connect tomains. Proceed until display shows “ ”.

DIGITAL OUT OK

Diagnostic Software

NO DIGITAL OUTPUT

DIG_OUTTestpoint 11?

• Check digital trafo L5400

• Check flex connection to mono board

• Check mono board

NO

YES

DIGITAL OUTTestpoint 18?

NO

YES

• To put set in “Player script”, press keysSTOP+OPEN/CLOSE simultaneously and connect tomains. Proceed until display shows “ ”.

OPTICAL OUT? • Check optical transmitter 6400

AUDIOTV- & AUX-SCART

?

YES

NO • Check SCART SWITCH IC 7305

• Check KILL transistors 7336, 7337

PM3392A

ch1

CH1 1 V~ MTB 500us ch1+

1

TP 16 : ANALOG OUTPUT AUDIO HP_R & HP_L

PM3392A

ch1

CH1 2 V~ MTB 100ns ch1+

1

TP 11: DIG_OUT

PM3392A

ch1

CH1 200mV~ MTB 200ns ch1+

1

APP SND-2

APP SND-2

CL96532126_004.eps261099

Electrical diagrams and Print-layouts 2159502 & 59501 5.

VIDEO PART OK

Diagnostic Software

NO PICTURE

CVBS & Y/C OUT

POWER SUPPLY?

• Check testpoints 20-21.

• Check SCART SWITCH IC 7305.

• Check I2C (testpoints 22,23).

• Check Y/C VIDEO buffer transistor 7302, 7303.

• Check testpoint 19.

• Check CVBS VIDEO buffer transistors 7301, 7300, 7310.

• Check testpoints 1-6

• Check flex connection to mono board

• Check mono board

• Check supply voltages +8Vstby, –8Vstby, +12Vstby,+6Vstby.

• Check voltage regulator 7304

• Check safety resistors 3615, 3516

• Check flex connection to mono board.

NO

YES

VIDEOCONN. 1300CONN. 1301

?

NO

NO

YES

YES

NO

YES

VIDEOY/C OUT

?

VIDEOCVBS CINCH

?

• To put set in “Player script”, press keysSTOP+OPEN/CLOSE simultaneously and connect tomains. Proceed until display shows “ ”.

VIDEO PART

CL96532126_005.eps261099

Video-1

PM3392A

ch1

CH1 200mV~ MTB20.0us ch1+

1

TP 1 : video B

PM3392A

ch1

CH1 200mV~ MTB20.0us ch1+

1

TP 2 : video G

PM3392A

ch1

CH1 200mV~ MTB20.0us ch1+

1

TP 3 : video R

PM3392A

ch1

CH1 200mV~ MTB20.0us ch1+

1

TP 4 : CVBS

PM3392A

ch1

CH1 200mV~ MTB20.0us ch1+

1

TP 5 : C_ENC

PM3392A

ch1

CH1 200mV~ MTB20.0us ch1+

1

TP 6 : Y_ENC

PM3392A

ch1

CH1 500mV~ MTB20.0us ch1+

1

TP 19 : CVBS_OUT

PM3392A

ch1

CH1 50mV~ MTB20.0us ch1+

1

PM3392A

ch1

CH1 500mV~ MTB20.0us ch1+

1

TP 21: C_OUTPM3392A

ch1

CH1!5.00 V~ MTB20.0us ch1+

1

TP24: HSYNC

CL96532126_006.eps261099

Electrical diagrams and Print-layouts 2259502 & 59501 5.

SCART SWITCHING

OK

Diagnostic Software

NO PICTURE SCART

SCART SWITCHING

PICTURE TV?

• Check RGB at testpoints 1-3

• Check HSYNC at pin 14 of IC 7316 (testpoint 24).

• Check RGB at output of RGB video processor 7316testpoints 25. 26. 27.

• Check SCART SWITCH IC 7305

• Check “SLB_TV: 10V, “FBOUT_TV: 5V, BC_TV: 1,2V

• Check video buffer transistors 7306, 7307, 7308, 7309 forTV scart and 7325 for AUX scart.

NO

YES

NO

YES

PICTUREAUX/VCR IN

ON TV?

• To put set in “Player script”, press keysSTOP+OPEN/CLOSE simultaneously and connect tomains. Proceed until display shows “ ”.

Diagnostic Software • press NEXT. Display shows:” PressingPREVIOUS will return to “

• Check “SLB_TV = 0V, “FBOUT_TV = 0V, BC_TV: -0.3V.

• Check video buffers.

SCART SWITCHING

OK

Diagnostic Software

NO RGB VIDEOPROCESSOR

CONTROL

COLOUR SETUPOK?

• Check RO, GO, BO at output of IC 7316 testpoints 30, 31,32.

• Check I2C (testpoints 22, 23).

• Check RGB VIDEO PROCESSOR IC 7316.

NO

YES

• To put set in “Player script”, press keysSTOP+OPEN/CLOSE simultaneously and connect tomains. Proceed until display shows “ ”.

• Press NEXT. display shows “ ”

• Colours will change from light to dark.

SCART DVD

SCART DVD

SCART LOOP

COLSETUP HI

COLSETUP LO

CL96532126_007.eps261099

Video-2

PM3392A

ch1

CH1!5.00 V~ MTB50.0us ch1+

TP22: SCL(I2C)

PM3392A

ch1

CH1!5.00 V~ MTB50.0us ch1+

1

TP23: SDA(I2C)

PM3392A

ch1

CH1! 500mV~ MTB20.0us ch1+

1

TP25: RO (COLOURSETUP HI)

PM3392A

ch1

CH1! 500mV~ MTB20.0us ch1+

1

TP25: RO (COLOURSETUP LO)

1

PM3392A

ch1

CH1! 500mV~ MTB20.0us ch1+

1

TP26: GO (COLOURSETUP HI)

PM3392A

ch1

CH1! 500mV~ MTB20.0us ch1+

1

TP 26: GO (COLOURSETUP LO)PM3392A

ch1

CH1! 500mV~ MTB20.0us ch1+

1

TP27: BO (COLOURSETUP HI)

PM3392A

ch1

CH1! 500mV~ MTB20.0us ch1+

1

TP27: BO (COLOURSETUP LO)

CL96532126_008.eps261099

Electrical diagrams and Print-layouts 2359502 & 59501 5.

I2C

B

G

R

BUFFER

OUTPUT

OUTPUT

BUFFER

OUTPUT

BUFFER

ADJUST

LIMITING

PEAK DRIVE

LIMITING

PEAK BEAMGAMMA

BRIGHTNESS

ADJUST

CONTRAST

ADJUST

SATURATION

LEAKAGE ANDCUT-OFFCONTROL

BLACK

ADAPTIVE

SYNCINPUT

SOURCESWITCH

Y-

MA

TR

IX

Y-C

D/

2370 G32372 G13

2373 G142361 D112362 D11

2380 C62381 C72384 C3

2398 D32400 E4

2401 E92403 E92405 F62406 F72407 F8

H

1300-1 A1

2386 C92387 C32388 D9

2389 C32390 D42391 D32392 D92393 D4

2412 H42415 E12416 E11

2 3

3321 D103322 D103331 B8

2365 E152367 F12

5 6

2417 D15

2419 B3

9 10 11 12 13 14 15

1

3420 F83424 F4

4 5 6 7 8 9 10 11

2374 G32379 C5

14 15

1301-8 D11301-9 E12351 C122352 C132354 H3

2360 D10

D

E

2363 E152364 E15

H

A

B

C

D

E

F

G

7316 C47322 F41300-2 C1

1300-3 C11300-5 C11300-6 G11300-8 A11300-9 A11301-10 D11301-13 D1

2394 D92397 D4

1301-16 E11301-2 D1

OPTIONALOPTIONAL

1 2 3 4

3352 B53353 C5

7 8

3403 D33404 D33405 D33406 E3

3414 E43415 E43418 F63419 F6

F136 C15F138 D13433 H4

3610 H63611 H6

3612 H73613 H63614 H73615 A33616 B2

12 13

3619 B23620 E3

OPTIONAL

VIDEO CONTROL & SCART SWITCH

PROCESS CHIPS

A

B

C

3627 E23628 F2

F

G

4305 F134307 A84308 A84309 A86302 B16303 B17304 H37305 C11

F200 C5F201 C57329 H6

7330 H77331 A27332 B27333 F27334 F27335 G1

7999 H101301-14 G11301-15 E1

F109 C1F110 C13334 C8

3338 H133339 H133340 H143341 H14

3350 C7

F120 H4F121 H53400 D3

3401 D3

F124 C14F125 C14F128 D1

F129 C15F130 D1F131 C10F132 C15F135 E1

F267 H7F268 H6F139 D11

F141 D11

F142 D1F143 D15F144 G1F146 C15F150 E1F151 E113617 B1

3618 B2

F156 C15

F158 E113621 F23622 F13623 F23624 F13625 G13626 A2

F170 F12F172 F123999 H9

4304 F13

F177 G14F180 G14F181 G13F182 G3F185 A10F188 A10F191 A10

F196 C5

F233 E9F237 E6F202 C6

F203 C6F204 C7F211 C4F213 C9F214 C4

F215 D9F217 C4F105 A1

F106 C1

F224 D9F225 D4F112 G2

F113 A1F116 C13F117 C12

F118 C12F119 C13

F274 B1F275 E2

F122 C13F123 C14

F244 F4F249 F4

F260 A1F261 E15F262 E2F263 E11F265 H7F266 H7

F276 E3F277 F2F278 F1

F173 F12F176 G13

F281 G1F298 C14F301 B1

F226 D9F227 D4

F153 E11F154 C15

F279 F2F280 F2F159 E15

F160 E11F161 E15F162 E11F168 F13F169 F13

F16

8

F228 D4

F230 E4F231 E9

F221 D4F223 D4

F238 E7F242 E7F243 E8

F269 A2

F270 A3F271 B2F272 B2F273 B2

3627

F141

F24

2

4307

1K3618

F20

4

BC337-257331

F151

470n

2386

3628

1K5

47u

2419

2417

100n

F211

F14

3

3625

1K

F185

3321

100R3340

2389

470n

100R

F221

2362

100n

F266

F301

F17

6

F180

470n

2401

BC847B7335

3620

52030

1301-10

10

F215

3613

2K7

4u72372

50

4K3

3334

F260

3999

23603403

75R 47p

-8Vstby

+8VSTBY

F113

F12

9

F17

0

F275

F227

4304

2354220n

3404

75R

F130

F213

3405

75R

F188

F109

F217

4K7

3331

F106

+5V

F249

+8VSTBY

F135

F153

F181

F112

334110K

F233

F17

3

1K5

3623

F231

100R3419

3406

75R

2416

100n

+8VSTBY

240547p

F17

7

F270

22n2365

F131

3617

10K

F150

F139

F223

3612

10K

+8VSTBY

F159

47u

2412

3322

100R

VCCA

33

VC

CV

1

16

VC

CV

2

12

VC

CV

3

9

VO

UT

-RF

51VREF

24YCVBSIN-AUX

YC

VB

SIN

-EN

C

36

YCVBSIN-TV52

50YCVBSIN-VCR

15

YC

VB

SO

UT

-AU

X

3

YC

VB

SO

UT

-TV

7

YC

VB

SO

UT

-VC

R

YIN-AUX26

YIN

-EN

C

3837

RIN

-AU

X

43

RIN

-EN

C

39

RIN

-ST

B

56RIN-TV

47

RIN

-VC

R

4

RO

UT

-AU

X

58ROUT-CINCH

64ROUT-TV

60ROUT-VCRSCL

21

22SDA

31SLB-AUX

25SLB-TV

27SLB-VCR

23VCC12

55

14

GN

DV

2

10

GN

DV

3

63GOUT-TV

35

LIN

-AU

X

45

LIN

-EN

C

41

LIN

-ST

B

53LIN-TV

49LIN-VCR

6

LOU

T-A

UX

59LOUT-CINCH

LOU

T-T

V

2

62LOUT-VCR

28RCIN-AUX

42

RC

IN-E

NC

1

RC

OU

T-T

V

61BOUT-TV

40

CIN

-EN

C

54CIN-TV

48

CIN

-VC

R

CO

UT

-AU

X

13

CO

UT

-VC

R

5

34

CV

BS

IN-S

TB

18FBIN-AUX

FBIN-ENC19

17FBOUT-TV

11

FIL

TE

R

30GIN-AUX

44

GIN

-EN

C

57GNDA

GNDV129

7305STV6410A

ADD20

8

AO

UT

-RF

32BIN-AUX

46

BIN

-EN

C

+6V

6302

BAS216

PB A/V MUX

4305

F158

F225

+8Vstby

F24

3

F27

9

F15

6

F238

2394

220n

1300-9

52030 9

3616

4K7

10

2364100u

50

23734u7

100n2351

+12VstbyF224

33525K6

52030 2

F230

F191

F12

3

1301-2

47p2406

2388

220n

1300-3

3

52030

1300-5

5

3418100R

52030

2393

10n

2384

470n

1301-8

52030 8

3400

75R

F269

F278

2380100n

10n

F128

341522K

2398

+8VSTBY

34144K7

+8VSTBY

2400

10n

33531K

7322BC847B

52030

1301-13

13

3433

F228

100n

2363

1301-14

52030 14

F274

342082K

F27

2

3610

4K7

F110

F182

F273

+8VAud

F237

F244

F265

F20

2

2352100n F

119

F11

7

F226

2407330n

2387

470n

52030

1300-6

6

F160

F261

F262

F26

8

100n2379

10n

2391

1301-15

52030 15

F142

3424

22K

F12

2

F11

6

52030 9

F214

F13

2

1301-9

BC847B7329

3611

4K7

F276

4308

52030

1300-1

1

2397

10n

2392

470n

F144

3624

10K

3622

10K

+12Vstby

BC327-257333

4309

47p

3626

+8VSTBY

F161

2361

335010K

6303

BAS216

F20

0

F20

3

F20

1

2403

220n

F12

4

7330BC847B

F12

5

7334BC847B

333810K

SD

A

5

VC

C8 Y

y|H

UE

26

100R3339

16

CP

DL

18

CP

DS

T

11 G1

3 G2

9

GN

D

22GO7 R-Y

10 R1

2 R2

13

RG

B1

1

RG

B2

24RO

14 SC

28

SC

L

27

TDA47807316

17 19

6 B-Y

12 B1

4 B2

15

BC

L

20BO

25CLAMP1

23CLAMP2

21CLAMP3

75R

3401

7999BC847B

F105

F11

8

3615

4R7

100n

OUT3

2367

7304LF80C

GND

2

IN1

F281

F280

F14

6

220n25

2374

F162

F29

8

50

2370

10u

F138

F263

F121

3614

10K

+12VstbyF120

100n2381

2390

10n

4K7

3621

F267

2

F13

6

2415

10u

1300-2

52030

F19

6

F15

4

52030

1301-16

16

3619

10K

F277

+8VSTBY

F271

F17

2

F16

9

52030

1300-8

8

BC857B7332

0|6V

BCTV

LIN

_TV

RO

UT

_TV

GO

UT

_TV

RIN

_TV

BO

UT

_TV

BC

_TV+8VSTBY

P50

B

GO

BO

GO

RO

RO

,BO

,GO

RO,BO,GORO

COUT_AUX

BO

Y_ENC

STEREO_L

SDA

SCL

STEREO_R

YCVBSIN

YC

VB

SIN

_TV

SLB_VCR

SLB_TV

DC_OFF

CVBS

CVBS

HSYNC

G

R

SDA

SCL

HSYNC

Y_ENC

+6V_ON

DC_OFF

SLB_VCR

DC_OFF

FR

OM

MO

NO

PC

B

V ELECTRONICVOLTMETER DC

V

O

L

T

A

GES MEASURED IN ST

OP MODE

TP1

TP2

TP3

TP6

TP4

TP6C-ENC

TP24

TP25

TP26

TP27

TP22

TP23

-9.5V-9.2V

-8.6V

-0.16V

-1.2V

-0.7V

0V

11.2 V 10.8V

11V

0.16V

0.7V

0V

1.6V

0.7V

10.8V8V

0.7V 0.7V

0V

FR

OM

MO

NO

PC

BF

RO

M M

ON

O P

CB

CL96532158_009.eps091299

Electrical diagrams and Print-layouts 2459502 & 59501 5.

3427 G73429 I113431 I11

3435 C103436 D113437 D103438 D103439 C43440 D33441 I103515 C73600 E33601 F2

3602 F33603 F43604 F23605 F13606 F4

3356 H33357 H43359 F12

3607 F43608 H5

3363 F113364 I73365 I43366 F123367 A123368 A113378 I23394 F113395 I53397 G113398 I33399 I43402 I63407 H113408 H113409 G113410 F53411 F73413 H123416 F7

CVBS-OUT

TV-SCART

3417 F63421 H13422 F53423 G73425 I12

3307 C33308 C33309 C3

3432 I133434 B10

3313 B123314 A123315 A113316 A123318 A113319 A113320 A123323 B113325 B113327 C113329 C113330 C123332 D113333 D113335 D113336 E123342 E113343 D133345 B53347 B4

OPTION

VIDEO OUT

3348 E123349 F133351 F123354 H73355 H7

2359 B102366 C122368 C12

3360 H63362 H7

2375 E122376 E112377 B52378 E112382 F112383 F112385 F102395 G122396 H102399 H102402 H112404 H132408 I122409 I132410 I122411 I112413 C132414 H122418 D43300 A3

Y/C OUT

3301 B33302 B33303 D43304 B33305 B33306 D5

7 8 9

3310 D53312 D3

12 13

1 2 3 4 5 6 7 8 9 10 11 12 13

A

B

C

D

E

AUX-SCART

2314 C32337 D52353 A112355 A102357 A102358 A13

7328 F27336 A127337 B11

2369 C132371 D13

F

G

H

I

A

B

C

D

E

F

G

H

I

1303 D61304-1 A131304-2 F131304-3 E131350 A131402-A B62308 D6

OPTION

1 2 3 4 5 6

F175 D10F178 E12F183 E12

10 11

3609 D44301 C116300 C36301 H16305 B116306 B76307 C87300 B37301 B27302 C57303 D37306 B107307 C117308 D107309 D117310 B47311 H67312 H47313 I37314 I67315 I77320 F67321 F67324 G77325 I117326 F47327 F3

F240 H7F241 H5F245 I2

7417 C8F100 B2F101 B3F102 B4F103 B3F104 B4F107 B3F108 B5F111 C3F114 A12F115 A11F127 A11F133 B11F134 A13F137 A13F140 B13F145 B12F148 B12F149 B13F152 B10F155 C11F157 C12F163 C11F164 C12F165 C12F166 D11F167 D10F171 D12F174 D12

F481 B7F482 B8F483 C7

F184 C4F186 D3F187 D5F189 D4F190 D5F192 D5F193 E12F194 F3F195 F12F197 F2F198 F4F199 F7F205 F11F207 F2F208 F6F209 F4F210 F5F212 F11F216 G13F218 G12F219 G13F220 G7F222 G13F229 H12F232 H1F234 H11F235 H7F236 H4F239 H3

+8Vstby

F246 I3F247 I11F248 I6F252 I5F253 I5F254 I7F255 I7F256 I10F257 I11F258 I12F259 I12F264 D4F297 F3F299 F4F300 G7

3421270R

342356R

F171

F175

F149

F145

470R

3410

1350EH-B

1

2

F229

F218

F178

3360

470R

F167

7311BC847B

2366220p

220p2369

3357

4K7

BC817-257324

2

1

3439

100R

-8Vstby

+8Vstby

YKC21-39301402-A

F115

F140

3607

+8Vstby

F297

5K6

F192

F300

F184

7303

+6Vstby

6K83304

BC847B

33R3416

820R

680R3308

3305

4K7

3395

F127

4K73398

F247

2408220p

2402

220p

F222

F212

F240

F104

F235

F190

F245

F232

+6Vstby

3342470R

220p2368

7308BC847B

F210

F197 F198

F264

470R3306

75R

3310

335947K

2410

470R

3351

342575R

2409220p

220p

3432

75R

F133

+6Vstby

F17

4

+8Vstby

+8Vstby

50

36004K7

47K3349

4u7

2382

16B

17B

18B

19B

2B

20B

21B

3B

4B

5B

6B

7B

8B

9B

1304-2

1B

10B

11B

12B

13B

14B

15B

4K7

4K73307

100K

F259

3605

F256

F257

3608

F258

470R

+6Vstby

7314

3347

3332

6301BAS216

BC817-25

3330

75R

470R

F114

F137

33R3355

2413100p

BC817-257315

+6Vstby

F183

4A

5A

6A

7A

8A

9A

3329470R

10A

11A

12A

13A

14A

15A

16A

17A

18A

19A

2A

20A

21A

3A

50

1304-1

1A

F166

2399

10u

F164 F165

F163

F155

8K2

F157

470R

75R

3303

3609

4u7

2357

50

3323

3413

47K

390R

3313

470R

3315

2404220p

47K3316

220p2375

BC847B7302

+6Vstby

-8Vstby

-8Vstby

7300BC857B

7325BC847B

47K3325

+6Vstby

3436

100p2414

100R

3441

150R

100R

3438

3437

100R

F234

3435

100R

75R3407

F194

150R

5010u

2396

+6Vstby

3333

2383

4u750

470R

3394

BC847B1K

3378 7313

75R

3336

5010u

2376

470R3362

3402

4K7

560R3365

33995K6

5

6

7

1

3

4

2

7306BC847B

2358220p

1303

TCS79

3348

1K

2308

220p

2377

2378

4u750

F152

+8Vstby

220p

Vref

F148

504u7

2355

Vref

BZX284-C5V66300

47K3318

150R3300

3429

5010u

2411

F24

8

75R

F241

F253

220R

334375R

6305

4301

3312

3431470R

BAT254

3408

7309BC847B

3302

100R

75R

100R

3301

BC847B7301

BC817-257336

220p2337

Vref

Vref

3422

4K7

BC847B 3345

75R

2K73368

7310

BC847B7307

BC857B

3327

75R

3606560R

7326

F205

F195

F216

BC857B

F189

504u7

4K73356

7312

50

2359

4u7

2385

75R

3411

56R3364

7320BC847B

3417470R

3354

75R

+8Vstby

BC817-257321

F100

-8Vstby

100R

3440

F107

F103

100R

3434F108

2353

504u7 1K

3314

3335470R

F134

4K7

3427

3602

F111

F255

4K7

F252

F102

F101

F239

2418

330n

F246

470R

1304-30350808190

MT1MT2

7337BC817-25

3409

6306

1PS76SB10

F482

F483

F481

100K3515

336647K

6307

1PS76SB10

3363

1K

33672K7

3309150R100u

2314

2371

2395220p

F219

F193

220p

Vref

+8Vstby

F187

F186

332047K

47K3397

1K

3319

PB A/V MUX

36014K7

F199

F209

+8Vstby

F207 7328BC847B

3604

2K2

7417BC857B

100K3603

7327BC847B

F220

+8VstbyF

208

F299

F254

SLB_VCR

KILL

F236

KILL_SCART

KILL_SCART

KILL_SCART

FBOUT_TV

BOUT_TV

COUT_AUX

FBIN_AUX

CVBS

SLB_TV

P50

P50

SLB_AUX

C_OUT,Y_OUT

C_OUT

Y_OUT

0|6V

TO

SC

AR

T D

AT

A F

ILT

ER

PC

B

TP19

TP20

TP21

-0.3V

-1V

7.4V

1.8V

5.6V

1.1V

2.5V

1.7V

1V

1.8V

0.7V

0V

8V-7.6V

-7.7V -0.8V

1.4V

0.8V

-7.7V

0.8V

-0.8V

-0.8V

0V

8V 8V

-7.6V

2.3 V

-7.7V-0.8V

2.3V

1.7V

-7.7V

1.7V

-0.8V

1.3V0.7V

1.3V

0.7V

4V

3.3V

1.7V

1V

1.7V

1V

B/C SWITCHING

V ELECTRONICVOLTMETER

DC

V

O

L

T

A

GES MEASURED IN ST

OP MODE

CL96532158_011.eps091299

Electrical diagrams and Print-layouts 2559502 & 59501 5.

DRIVER

CO

NT

RO

LIN

TE

RF

AC

E

DAC’S

VOL/MUTE/DEEMPH

INTERPOL FILTER

NOISE SHAPER

NC

DIG

ITA

LIN

TE

RF

AC

E

F

G

H

I

1300-10 E11300-11 E11300-12 E11300-13 E1

1300-22 G11300-4 D11300-7 E11301-1 H1

AUDIO

SUBW

1

F433 C6

F430 C1F432 C1

F415 B5F416 B7F417 B9F418 B5F419 B1F420 B7F421 B6

11 12 13

1 2 3 4 5

F422 B1F423 C7F424 C8F425 C1F428 C1

OPTIONAL

CENTER

E

A

B

C

D

LEFT REAR

1301-11 I11301-12 I1

F

G

H

I

A

B

C

D

E

1402-C D131405 I131410 A132450 B62452 A22453 A32455 B42456 B7

1300-14 F11300-15 F11300-16 F11300-17 F11300-18 G11300-19 G11300-20 G11300-21 G1

2465 D62466 D72467 D82468 E6

OPTION

2469 E22470 D11

2 3 4 5 6 7 8 9 10

2480 F52481 G62482 G82483 F112484 G52485 H62486 H82487 H5

6 7 8 9 10 11 12 13

RIGHT FRONT

3444 C43445 C103446 C73447 C83448 C43451 C4

1301-3 H11301-4 H11301-5 H11301-6 I11301-7 I11400-A A111400-B D91400-C G91402-B D13

3461 A103462 A73463 A83464 A63466 D73468 D43469 D83470 E7

2457 C102458 C62459 A42460 B22461 C62462 A72463 A102464 A6

3V

3480 F73481 F133482 F53483 F83484 F73486 G4

2471 E22472 E32473 D102474 D112475 F62476 E122477 E62478 F82479 E11

3496 H73497 H73498 H53499 H83502 H53505 I83506 F33507 I8

2488 H132489 I122490 D72491 I22493 I82494 I112495 I93442 B7

LEFT FRONT

3517 B73518 B33519 B33520 I23521 I33522 I2

3452 B23453 C63454 A43455 A43456 A73457 A83458 C33459 B43460 C3

6400 I137400 A27401 B27402 A37403-A A67403-B B67403-C A117403-D C11

3471 E53472 E13473 E23475 E63476 E123477 E133478 E43479 F4

RIGHT REAR

2.8VRMS

OPTIONAL

7409 E77410 F77411 G77412 H7

3487 G73488 G73489 G43490 G83491 F123492 F133493 G5

3494 G133495 H4

7421 G37422 I37423 I3F400 A12F401 A3F403 A5F404 A6F405 A7

3508 I103509 G23510 C63511 C13512 C13513 F123514 G123516 H2

F434 D4F435 D7F436 D8F437 D3F438 D7F439 E2F440 D10

3523 H33524 H133525 F13527 G24400 F104401 E105400 I96308 H126309 H11

F450 F6F451 F6F452 F8F453 E12F454 F13F455 E1F456 E10F457 F7

7404 C77405 C87406 A97407 A77408-A E57408-B D67408-C G57408-D F5

F466 F12F467 F13F468 F13F469 G10F470 G13F471 G1F472 G4

7413-A D107413-B F97413-C G97414-A E117414-B F117415 E137416 G127419 F137420 G13

F486 I8F487 I8F488 I10F489 I10F490 I10F491 G2F497 H1F498 G12

F406 A8F408 A5F409 A7F410 A7F411 A8F412 B4F413 C12F414 B2

F499 A3F500 H3F501 I2F502 I3F503 I2F600 I9F601 E1

F441 E6F442 E6F443 E4F444 E11F445 E12F446 E13F447 E13F448 E1F449 E5

F458 F10

F459 F4F460 F5F461 F6F462 F7F463 G4F464 G7F465 F11

F473 G1F474 H6F475 H6F476 H8F477 H5F478 G1F479 H7F480 G12F485 I2

6308

1PS76SB10

+12VAUD

-8Vstby

F454

52030

1301-7

7

2471100n

F491

-8Vstby

22n

2469

F473

+12VAUD

2K7

3494

3460

10K3483

F447

F438

F445

F458

3457

100R

3

2

1

4

11

3

52030

1301-1

1

MC330797408-A

1301-12

52030 12

1301-3

52030

47u2474

10K

3454

7403-AMC33079

3

2

1

4

11

6309

BZX284-C5V1

2488

100n

1300-12

52030 12

1300-18

18

+8VAud

F436

52030

1300-17

17

52030

F423

100u

2462

Vdd

7Vee

8Vss

12 Y0

13 Y1 14Z

F465

7413-A

HEF4053BT

6E

11S

16

52030

1300-11

11

-8Vstby

F466

F452

BC817-257409

2

BC817-257411

GP1F32T6400

3

1

3492

BC817-257419

4K7

3520

100R

+5V

-8Vstby

7402BC817-25

6E

10S

16Vdd

7Vee

8Vss

2 Y0

1 Y1 15Z

F448

2K7

7413-B

HEF4053BT

4

F444

3462

3V3A

LM833D7414-B5

6

7

8

F411

F446

100R

3491

F453

3444

10K

2489

100n

1300-14

14

1300-16

52030 16

7403-B5

6

7

4

11

+5V

52030

10K

3511

MC33079

220R

3487

F403

F474

+5V

F467

3459

10K

100p

2459

-8Vstby

10K

3448

3484

2K7

+6V

F501

F500

+12VStby

+8VAud

F463

2470

22n

F600

2K7

3447

100u

2483

100R

34762476

100u

1301-5

52030 5

F50

2

F503

7403-C10

9

8

4

11

22n

2468

F480

MC33079

47u

+12VAUD

100R

2466

2K7

3497

3456

2460

F489

2K7

3488

22n

3

1

2

1n2467

12

13

14

4

11

YKC21-40401400-A

F470

7403-DMC33079

100p

2461

F476

7414-ALM833D

3

2

1

8

4

2485

47u

3481

2K7

10K

350610K

F45

6

3482

246522n

1300-10

52030 10

1300-7

52030 7

YKC21-40401400-C

9

7

8

BC817-257415

4R7

3510

1

2

3 4

6

7 8

2452220n

7CHA5400

7412BC817-25

F419

2K7

3518

F499F

439 F437

F442

F435

F420

349910K

3471

1400-BYKC21-4040

6

4

5

BC817-257406

5K6

4400

F432

F479

1300-22

52030 22

+8VAud

F478

245347u

6

4401

7

52030

1301-4

4

52030

1301-6

EH-B14101

2

3

4

5

6

6

5

F433

7408-CMC33079

10

9

8

4

11

1402-CYKC21-3930

5K6

F468

346110K

3498

F490

F406

3489

3477

100R

2456

100u

5K6

YKC21-39304

3

2493

47p

3V3

1402-B

100p

2484

1

3

22494

100n

1405YKC21-3416

100p

2455

OUT2

+5V

LD11177400

1

GND

IN3

3525

10K

3508

68R

52030

1300-13

13

F417

F459

F443

52030

1301-11

11

10K3469

35142K7

22n

2479

F410

F477

1300-21

21

22n

2458

20

52030

1300-19

19

52030

1300-20

52030

F425

7420

3517

100R

BC817-25

1n

F455

3472

2482

3V3

+8VAud

4R7

2K7

F401

22n2473

+8VAud

3446

10K

3493

3502

10K

F430

3463

2K7

F451

220R

F404

F422

3466

100p

10K

3453

100p

2487

2464

F464

100K3478

-8Vstby

3451

10K

+8VAud

7416

F441

BC817-25

-8Vstby

+5Va

24631n

F475

7410BC817-25

F414

F408

F412

BC847B7423

100K3468

BC817-257405

24781n

47u

2475220R

3480

F485

F449

F418

-8Vstby

100K3495

100R

3505

+8VAud

F472

10u F488

F434

2495

F487

F486

11

3522

1K

MC330797408-B5

6

7

4

BC817-257421

F428

F416

24571n

249047u

F450

3507

100R

F421

+5Va7408-D12

13

14

4

11

3527

47K

3464

10K

MC33079

7404BC817-25

F462

3458

F415

F469

10K3445

2K7

3470

F498

3524

PB A/V MUX

1K3521

BC557B7422

6E

9S

16Vdd

7Vee

8Vss

5 Y0

3 Y1 4Z

F457

7413-C

HEF4053BT

-8Vstby

F601

47K

3509

24861n

-8Vstby

F400

3442

100R

+5V

3512

10K

3V3A

47u2472

+12VAUD

3473

3486100K

52030

1300-4

4

3516

4R7

F424

+6VstbyF497

3523

2480

100p

-8Vstby

52030

1300-15

15

100p

2477

-8Vstby

3496

220R

F409

F461

22n

-8Vstby

F460

F405

2450

3452

10K

3455

F471

+8VAud

F413

3V3

3475

5K6

3519

BC817-25

10K

22

6

VDDA

21

VDDD

VO1N29

VO1P28

VO2N 31

VO2P 32

VO31 VO4 2

VO54 VO6 5

VREFA

30

VSSA

3

VSSD

20

WS11

7407

24DI1212

13 DI34

DI5614

DS 26

18L3CLK

L3DATA 19

L3MODE 17

MUTE 23

7

8

15

STATIC 9

SYSCLK16

TST127

TST2

7401UDA1328T

BCK10

DEEM0 25

DEEM1

47u

2481

5K63479

349010K

2K73513

F440

2491

100u

ST_R

ST_L

STEREO_L

STEREO_R

KILL

-8Vstby

+5Va

DIG_OUT

STEREO_MUTE

CENTER_ON

KILL

KILL

STEREO_L

KILL

STEREO_R

DIG_OUT

+6V_ON

KILL

HP_R

HP_L

HP_R

HP_R

HP_L

CENTER

ST_L

KILL

KILL

KILL

KILL

KILL

KILL

KILL

KILL

ST_R

CENTER

HP_L

TO

HE

AD

PH

ON

E P

CB

V ELECTRONICVOLTMETER

DC

V

O

L

T

A

GES MEASURED IN ST

OP MODE

KILL:

-5V DURING PLA

Y+5V DURING ST

OP

, NEXT

, PREVIOUS

TP7

TP8

TP9

TP10

TP12

TP13

TP11

TP14

TP14

TP14

TP14

TP14

TP14

TP14

TP14

TP15

TP15

TP15

TP15

TP15

TP15

TP16

TP16

TP16

TP16

8V 3V3

1.65V

0.6V

0V

5V

0.7V

0V

5.5V

5.5V

TP18

FR

OM MONO PCB

CL96532158_010.eps091299

Electrical diagrams and Print-layouts 2659502 & 59501 5.

A/V PCB TOPVIEW

CL96532158_012.eps091299

A/V PCB BOTTOMVIEW