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MODEL: FW855C SYMPTOM: Program number is not displayed for Tuner frequency 100.2MHz CURE: IRIS CODE: 113X The problem is due to software.Although program number is not displayed, the program number can still be selected.An improved software (ver. 26) for uProcessor IC 7461 TMP87CS71F is available under service code: 4822 900 11253.

MODEL: FW855C SYMPTOM: Program number is not displayed for Tuner frequency 100.2MHz. CURE: The problem is caused by software. Although the program number is not displayed, the program number can still be selected. An improved software (version 26) for microprocesssor IC 7461 TMP87CS71F is available via service code 4822 900 11253.

MODEL: FW855C SYMPTOM: DIG flashing on the display of CDR during record from Mini System CURE: IRIS code: 2728 FAULT DESCRIPTION: During Digital Optical recording from Mini System to CD Recorder (eg. FW538 and CDR538), DIG flashes on the CDR display due to communication failure.The problem usually occurs when the recording is made immediately after an analogue source ie. Tuner or Tape has been selected for use. CAUSES: In the software of the Mini System there is a reset for the CD part which causes a pause of about 130mSec. in the digital output signal when source mode are changed. SOLUTION: Customer is advised to follow the instructions according to newsletter AS98.08.04 for CD Recorders.

MODEL: FW855C SYMPTOM: The cassette doors (especially left) do not close. CURE: IRIS Code: 1615 CAUSES: The door does not close due to: 1) Door catches dimensions may have deviated 2) Plastic brackets of the catches may be deformed causing the push catch to fail. SOLUTION: The tools of the push catch & plastic brackets have been modified and implemented into production from week 9835 onwards. For repair they should be replaced by good ones.The service codes are as follows: 1. For FW72C, FW530C, FW535C, FW538, FW550C, FW570C, FW575C, FW765P, FW775P and FW795W Pos 244 - 4822 402 10621Push Catch Pos 246 - 4822 402 11246Bracket, Right Pos 247 - 4822 402 11245Bracket, Left 2. For FW346C, FW356C, FW358C, FW359C and FW388V Pos 275 - 4822 402 10621Push Catch Pos 276 - 4822 402 11246Bracket, Right Pos 277 - 4822 402 11245Bracket, Left 3. For FW850C, FW855C, FW860P, FW880P and FW880W Pos 248 - 4822 402 10621Push Catch Pos 249 - 4822 402 11245Bracket, Left Pos 250 - 4822 402 11246Bracket, Right

MODEL: FW855C SYMPTOM: CD tray moves out and in again or stops at half way. CURE: When the CD tray is in motion the inside arm of the switch bracket (pos 123) hits the micro switch earlier than the main lever. The problem can be solved by cutting a

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section of the inside arm of the switch bracket. REMARKS : The phenomenon can be simulated by tilting the set at either side for 1cm or more. X 7 6 1 IRIS CODE

MODEL: FW855C SYMPTOM: the tray doesmove out and immediately go in again or stops half way CURE: When the CD tray is in motion the inside arm of the switch bracket (pos 123) hits the micro switch earlier than the main lever. The problem can be solved by cutting a section of the inside arm of the switch bracket as indicated below: REMARKS : The phenomenon can be simulated by tilting the set at either side for 1cm or more.

MODEL: FW855C SYMPTOM: Mic-mixing cannot be recorded when the selected source is TAPE 1 CURE: Recording of mic-mixing with TAPE 1 source is not supported because the set will switch automatically into dubbing mode.The IFU (recording the mixed sound section) does caused some confusion but will not be update because production will end in April 1999 REMARKS : No update for IFU

MODEL: FW860P SYMPTOM: Program number is not displayed for Tuner frequency 100.2MHz CURE: IRIS CODE: 113X The problem is due to software.Although program number is not displayed, the program number can still be selected.An improved software (ver. 26) for uProcessor IC 7461 TMP87CS71F is available under service code: 4822 900 11253.

MODEL: FW860P SYMPTOM: Program number is not displayed for Tuner frequency 100.2MHz. CURE: The problem is caused by software. Although the program number is not displayed, the program number can still be selected. An improved software (version 26) for microprocesssor IC 7461 TMP87CS71F is available via service code 4822 900 11253.

MODEL: FW860P SYMPTOM: DIG flashing on the display of CDR during record from Mini System CURE: IRIS code: 2728 FAULT DESCRIPTION: During Digital Optical recording from Mini System to CD Recorder (eg. FW538 and CDR538), DIG flashes on the CDR display due to communication failure.The problem usually occurs when the recording is made immediately after an analogue source ie. Tuner or Tape has been selected for use. CAUSES: In the software of the Mini System there is a reset for the CD part which causes a pause of about 130mSec. in the digital output signal when source mode are changed. SOLUTION: Customer is advised to follow the instructions according to newsletter AS98.08.04 for CD Recorders.

MODEL: FW860P SYMPTOM: The cassette doors (especially left) do not close. CURE: IRIS Code: 1615 CAUSES: The door does not close due to: 1) Door catches dimensions may have deviated 2) Plastic brackets of the catches may be deformed causing the push catch to fail. SOLUTION: The tools of the push catch & plastic brackets have been modified and implemented into production from week 9835 onwards. For repair they should be replaced by good ones.The service codes are as follows: 1. For FW72C, FW530C, FW535C, FW538, FW550C, FW570C, FW575C,

FW765P, FW775P and FW795W Pos 244 - 4822 402 10621Push Catch Pos 246 - 4822 402 11246Bracket, Right Pos 247 - 4822 402 11245Bracket, Left 2. For FW346C, FW356C, FW358C, FW359C and FW388V Pos 275 - 4822 402 10621Push Catch Pos 276 - 4822 402 11246Bracket, Right Pos 277 - 4822 402 11245Bracket, Left 3. For FW850C, FW855C, FW860P, FW880P and FW880W Pos 248 - 4822 402 10621Push Catch Pos 249 - 4822 402 11245Bracket, Left Pos 250 - 4822 402 11246Bracket, Right

MODEL: FW860P SYMPTOM: CD tray moves out and in again or stops at half way. CURE: When the CD tray is in motion the inside arm of the switch bracket (pos 123) hits the micro switch earlier than the main lever. The problem can be solved by cutting a section of the inside arm of the switch bracket. REMARKS : The phenomenon can be simulated by tilting the set at either side for 1cm or more. X 7 6 1 IRIS CODE

MODEL: FW860P SYMPTOM: the tray doesmove out and immediately go in again or stops half way CURE: When the CD tray is in motion the inside arm of the switch bracket (pos 123) hits the micro switch earlier than the main lever. The problem can be solved by cutting a section of the inside arm of the switch bracket as indicated below: REMARKS : The phenomenon can be simulated by tilting the set at either side for 1cm or more.

MODEL: FW860P SYMPTOM: Mic-mixing cannot be recorded when the selected source is TAPE 1 CURE: Recording of mic-mixing with TAPE 1 source is not supported because the set will switch automatically into dubbing mode.The IFU (recording the mixed sound section) does caused some confusion but will not be update because production will end in April 1999 REMARKS : No update for IFU

MODEL: FW860P SYMPTOM: Correction of Mechanical parts list CURE: Correction of Mechanical parts list: Pos Service code Description 349 4822 445 10768 Center Loudspeaker Box 349 4822 445 10769 Surround Loudspeaker Box 386 4822 736 15978 Portugese IFU (for /21 only)

MODEL: FW870C SYMPTOM: The set behaves strangely after switching it on CURE: Additional information to Service Newsletter item AS99.08.03. Although not mentioned explicitly, the EEPROM must be cleared after hardware modification. The complete procedure is described on the next page. Step 5, clearing the EEPROM via the Service Test Program “EEPROM Format Test”, has been added. via Standby button or mains supply re-connection. Strange behaviour includes: • Loss of Tuner preset stations or tuning grid returns to 9kHz condition • When changing source to Tuner the set stalls for a few seconds and may or may not switch to Tuner mode • CD carousel rotates or the CD tray moves outwards • Tape deck motors start to run or relay starts activation and the deck starts engaging and disengaging • During this strange behaviour condition the set does not go into demo mode The problem is caused by corrupted data being written into the EEPROM IC 7417 via the I2C_DATA line. The data corruption can be verified and cleared by performing an “EEPROM Format Test” in the Service Test Program. The problem can be solved by the following hardware modification on the front board: 1. Ensure (change if necessary) that resistor 3596 is 68½ (4822 117 12521)

2. Change resistor 3611 to 4.7k½ (4822 051 20472) 3. Remove SMD jumper 4455 4. Add resistor 1k½ (4822 050 11002) with insulated leads between pin 37 of microprocessor IC 7413 and junction of resistors 3611 and 3613 (left solder pad of jumper 4455) 5. Clear the corrupted data in the EEPROM as follows: a) Enter the Service Test Program by holding the PLAY 2 and AUX button depressed while switching on the mains supply b) Perform an “EEPROM Format Test” by pressing the SEARCH 5 button to reset the EEPROM to default data c) Exit the Service Test Program by disconnecting the mains supply

MODEL: FW870C SYMPTOM: The set behaves strangely after switching it on CURE: Full symptom: The set behaves strangely after switching it on via Standby button or mains supply re-connection. Strange behaviour includes: - Loss of Tuner preset stations or tuning grid returns to 9kHz condition - When changing source to Tuner the set stalls for a few seconds and may or may not switch to Tuner mode - CD carousel rotates or the CD tray moves outwards Tape deck motors start to run or relay starts activation and the deck starts engaging and disengaging - During this strange behaviour condition the set does not go into demo mode CURE : The problem is caused by corrupted data being written into the EEPROM IC 7417 via the I2C_DATA line. The data corruption can be verified and cleared by performing an EEPROM Format Test in the Service Test Program. The problem can be solved by the following hardware modification on the front board: 1. Ensure (change if necessary) that resistor 3596 is 68 Ohm (4822 117 12521) 2. Change resistor 3611 to 4.7 kOhm (4822 051 20472) 3. Remove SMD jumper 4455 4. Add resistor 1 kOhm (4822 050 11002) with insulated leads between pin 37 of microprocessor IC 7413 and junction of resistors 3611 and 3613 (left solder pad of jumper 4455) 5. Clear the corrupted data in the EEPROM as follows: a) Enter the Service Test Program by holding the PLAY 2 and AUX button depressed while switching on the mains supply b) Perform an EEPROM Format Test by pressing the SEARCH 5 button to reset the EEPROM to default data c) Exit the Service Test Program by disconnecting the mains supply

MODEL: FW870C SYMPTOM: CD does not play and the display shows “DISC NOT FINALIZED”. CURE: The problem happens mainly with Brazi?.s Millennium disc and is resolved by upgrading the software of the Front microprocessor IC (pos. 7413) to version 20. The service code for the new IC reads 9965 000 02901.

MODEL: FW870C SYMPTOM: Additional information to Service Newsletter CURE: Additional information to Service Newsletter items AS99.08.03 and AS99.10.02: The reliability of EEPROM data can be improved further by changing the value of resistor 3611 to 2.2k5% 0.1W (4822 117 11449).

MODEL: FW870C SYMPTOM: Correction to the Service Manual, Partslist CURE: The following flex-foils and flex-foil-connector were missing and have been added to the partlist of the 3CDC-99 Module (chapter 10). pos.code numberarticle description ––––––––––––––––––––––––––––––––––––––––––––– 1805 2422 025 09768 Flex-Foil-Connector 19P 8001 4822 320 12232 Flex-Foil 15P 480mm 8001 4822

320 12658 Flex-Foil 19P 480mm 8001 4822 320 12659 Flex-Foil 23P 480mm 8001 4822 320 12729 Flex-Foil 23P 400mm 8005 3103 308 91820 Flex-Foil 15P 95mm

MODEL: FW870C SYMPTOM: resistor has been changed on the front board CURE: The following resistor has been changed on the front board to improve the data reliability to the EEPROM: 3596 4822 117 12521 68E 1% 0,1W

MODEL: FW870C SYMPTOM: Correction of Service Newsletter, item AS99.10.02 CURE: Correction of Service Newsletter, item AS99.10.02 The correct buttons for entering the Service Test Progam are “AUX” + “PRESET UP” instead of “AUX” + “PLAY”.

MODEL: FW870C/21 SYMPTOM: part has been added to the service parts list CURE: Pos Service code Article decription –––––––––––––––––––––––––––––––––––––––––––––– 386 4822 263 21092 ADAPTOR PLUG 6A 250V

MODEL: FW878C SYMPTOM: The set behaves strangely after switching it on CURE: Additional information to Service Newsletter item AS99.08.03. Although not mentioned explicitly, the EEPROM must be cleared after hardware modification. The complete procedure is described on the next page. Step 5, clearing the EEPROM via the Service Test Program “EEPROM Format Test”, has been added. via Standby button or mains supply re-connection. Strange behaviour includes: • Loss of Tuner preset stations or tuning grid returns to 9kHz condition • When changing source to Tuner the set stalls for a few seconds and may or may not switch to Tuner mode • CD carousel rotates or the CD tray moves outwards • Tape deck motors start to run or relay starts activation and the deck starts engaging and disengaging • During this strange behaviour condition the set does not go into demo mode The problem is caused by corrupted data being written into the EEPROM IC 7417 via the I2C_DATA line. The data corruption can be verified and cleared by performing an “EEPROM Format Test” in the Service Test Program. The problem can be solved by the following hardware modification on the front board: 1. Ensure (change if necessary) that resistor 3596 is 68½ (4822 117 12521) 2. Change resistor 3611 to 4.7k½ (4822 051 20472) 3. Remove SMD jumper 4455 4. Add resistor 1k½ (4822 050 11002) with insulated leads between pin 37 of microprocessor IC 7413 and junction of resistors 3611 and 3613 (left solder pad of jumper 4455) 5. Clear the corrupted data in the EEPROM as follows: a) Enter the Service Test Program by holding the PLAY 2 and AUX button depressed while switching on the mains supply b) Perform an “EEPROM Format Test” by pressing the SEARCH 5 button to reset the EEPROM to default data c) Exit the Service Test Program by disconnecting the mains supply

MODEL: FW878C SYMPTOM: The set behaves strangely after switching it on CURE: Full symptom: The set behaves strangely after switching it on via Standby button or mains supply re-connection. Strange behaviour includes: - Loss of Tuner preset stations or tuning grid returns to 9kHz condition - When changing source to

Tuner the set stalls for a few seconds and may or may not switch to Tuner mode - CD carousel rotates or the CD tray moves outwards Tape deck motors start to run or relay starts activation and the deck starts engaging and disengaging - During this strange behaviour condition the set does not go into demo mode CURE : The problem is caused by corrupted data being written into the EEPROM IC 7417 via the I2C_DATA line. The data corruption can be verified and cleared by performing an EEPROM Format Test in the Service Test Program. The problem can be solved by the following hardware modification on the front board: 1. Ensure (change if necessary) that resistor 3596 is 68 Ohm (4822 117 12521) 2. Change resistor 3611 to 4.7 kOhm (4822 051 20472) 3. Remove SMD jumper 4455 4. Add resistor 1 kOhm (4822 050 11002) with insulated leads between pin 37 of microprocessor IC 7413 and junction of resistors 3611 and 3613 (left solder pad of jumper 4455) 5. Clear the corrupted data in the EEPROM as follows: a) Enter the Service Test Program by holding the PLAY 2 and AUX button depressed while switching on the mains supply b) Perform an EEPROM Format Test by pressing the SEARCH 5 button to reset the EEPROM to default data c) Exit the Service Test Program by disconnecting the mains supply

MODEL: FW878C SYMPTOM: CD does not play and the display shows “DISC NOT FINALIZED”. CURE: The problem happens mainly with Brazi?.s Millennium disc and is resolved by upgrading the software of the Front microprocessor IC (pos. 7413) to version 20. The service code for the new IC reads 9965 000 02901.

MODEL: FW878C SYMPTOM: Additional information to Service Newsletter CURE: Additional information to Service Newsletter items AS99.08.03 and AS99.10.02: The reliability of EEPROM data can be improved further by changing the value of resistor 3611 to 2.2k5% 0.1W (4822 117 11449).

MODEL: FW878C SYMPTOM: Correction to the Service Manual, Partslist CURE: The following flex-foils and flex-foil-connector were missing and have been added to the partlist of the 3CDC-99 Module (chapter 10). pos.code numberarticle description ––––––––––––––––––––––––––––––––––––––––––––– 1805 2422 025 09768 Flex-Foil-Connector 19P 8001 4822 320 12232 Flex-Foil 15P 480mm 8001 4822 320 12658 Flex-Foil 19P 480mm 8001 4822 320 12659 Flex-Foil 23P 480mm 8001 4822 320 12729 Flex-Foil 23P 400mm 8005 3103 308 91820 Flex-Foil 15P 95mm

MODEL: FW878C SYMPTOM: resistor has been changed on the front board CURE: The following resistor has been changed on the front board to improve the data reliability to the EEPROM: 3596 4822 117 12521 68E 1% 0,1W

MODEL: FW878C SYMPTOM: Correction of Service Newsletter, item AS99.10.02 CURE: Correction of Service Newsletter, item AS99.10.02 The correct buttons for entering the Service Test Progam are “AUX” + “PRESET UP” instead of “AUX” + “PLAY”.

MODEL: FW878C/34 SYMPTOM: FM 65.81-74MHz cannot be tuned on the set CURE: All Mini Systems 1999 versions /34 are set to the default FM range of 87.5-108MHz when leaving the factory. The lower FM1 range of 65.81-74MHz can be turned on by holding the undermentioned keys depressed, while switching on the mains supply: a) “Tuner” & “Search Up” for all models except the MZ7/34 b) “Tuner” & “Next” for MZ7/34 only The display shows “FM1 ON”. REMARKS : By repeating the procedure the FM1 range will be switched off again.

MODEL: FW878C/34 SYMPTOM: FM 65.81-74MHz cannot be tuned on the set (IRIS CODE 121X) CURE: All Mini Systems 1999 versions /34 are set to default FM range of 87.5-108MHz before leaving the factory.The lower FM1 range of 65.81-74MHz can be turn on by holding down the undermentioned keys while switching on the Mains supply to the set: a) Tuner & Search Up for all models except the MZ7/34 b) Tuner & Next for MZ7/34 only The display will shows FM1 ON. By repeating the procedure the FM1 will be switched off.

MODEL: FW880P SYMPTOM: Program number is not displayed for Tuner frequency 100.2MHz CURE: IRIS CODE: 113X The problem is due to software.Although program number is not displayed, the program number can still be selected.An improved software (ver. 26) for uProcessor IC 7461 TMP87CS71F is available under service code: 4822 900 11253.

MODEL: FW880P SYMPTOM: Program number is not displayed for Tuner frequency 100.2MHz. CURE: The problem is caused by software. Although the program number is not displayed, the program number can still be selected. An improved software (version 26) for microprocesssor IC 7461 TMP87CS71F is available via service code 4822 900 11253.

MODEL: FW880P SYMPTOM: DIG flashing on the display of CDR during record from Mini System CURE: IRIS code: 2728 FAULT DESCRIPTION: During Digital Optical recording from Mini System to CD Recorder (eg. FW538 and CDR538), DIG flashes on the CDR display due to communication failure.The problem usually occurs when the recording is made immediately after an analogue source ie. Tuner or Tape has been selected for use. CAUSES: In the software of the Mini System there is a reset for the CD part which causes a pause of about 130mSec. in the digital output signal when source mode are changed. SOLUTION: Customer is advised to follow the instructions according to newsletter AS98.08.04 for CD Recorders.

MODEL: FW880P SYMPTOM: The cassette doors (especially left) do not close. CURE: IRIS Code: 1615 CAUSES: The door does not close due to: 1) Door catches dimensions may have deviated 2) Plastic brackets of the catches may be deformed causing the push catch to fail. SOLUTION: The tools of the push catch & plastic brackets have been modified and implemented into production from week 9835 onwards. For repair they should be replaced by good ones.The service codes are as

follows: 1. For FW72C, FW530C, FW535C, FW538, FW550C, FW570C, FW575C, FW765P, FW775P and FW795W Pos 244 - 4822 402 10621Push Catch Pos 246 - 4822 402 11246Bracket, Right Pos 247 - 4822 402 11245Bracket, Left 2. For FW346C, FW356C, FW358C, FW359C and FW388V Pos 275 - 4822 402 10621Push Catch Pos 276 - 4822 402 11246Bracket, Right Pos 277 - 4822 402 11245Bracket, Left 3. For FW850C, FW855C, FW860P, FW880P and FW880W Pos 248 - 4822 402 10621Push Catch Pos 249 - 4822 402 11245Bracket, Left Pos 250 - 4822 402 11246Bracket, Right

MODEL: FW880P SYMPTOM: CD tray moves out and in again or stops at half way. CURE: When the CD tray is in motion the inside arm of the switch bracket (pos 123) hits the micro switch earlier than the main lever. The problem can be solved by cutting a section of the inside arm of the switch bracket. REMARKS : The phenomenon can be simulated by tilting the set at either side for 1cm or more. X 7 6 1 IRIS CODE

MODEL: FW880P SYMPTOM: the tray doesmove out and immediately go in again or stops half way CURE: When the CD tray is in motion the inside arm of the switch bracket (pos 123) hits the micro switch earlier than the main lever. The problem can be solved by cutting a section of the inside arm of the switch bracket as indicated below: REMARKS : The phenomenon can be simulated by tilting the set at either side for 1cm or more.

MODEL: FW880P SYMPTOM: Mic-mixing cannot be recorded when the selected source is TAPE 1 CURE: Recording of mic-mixing with TAPE 1 source is not supported because the set will switch automatically into dubbing mode.The IFU (recording the mixed sound section) does caused some confusion but will not be update because production will end in April 1999 REMARKS : No update for IFU

MODEL: FW880W SYMPTOM: Program number is not displayed for Tuner frequency 100.2MHz. CURE: The problem is caused by software. Although the program number is not displayed, the program number can still be selected. An improved software (version 26) for microprocesssor IC 7461 TMP87CS71F is available via service code 4822 900 11253.

MODEL: FW880W SYMPTOM: Program number is not displayed for Tuner frequency 100.2MHz CURE: IRIS CODE: 113X The problem is due to software.Although program number is not displayed, the program number can still be selected.An improved software (ver. 26) for uProcessor IC 7461 TMP87CS71F is available under service code: 4822 900 11253.

MODEL: FW880W SYMPTOM: DIG flashing on the display of CDR during record from Mini System CURE: IRIS code: 2728 FAULT DESCRIPTION: During Digital Optical recording from Mini System to CD Recorder (eg. FW538 and CDR538), DIG flashes on the CDR display due to communication failure.The problem usually occurs when the recording is made immediately after an analogue source ie. Tuner or Tape has been selected for use. CAUSES: In the software of the Mini System there is a reset for the CD part which

causes a pause of about 130mSec. in the digital output signal when source mode are changed. SOLUTION: Customer is advised to follow the instructions according to newsletter AS98.08.04 for CD Recorders.

MODEL: FW880W SYMPTOM: The cassette doors (especially left) do not close. CURE: IRIS Code: 1615 CAUSES: The door does not close due to: 1) Door catches dimensions may have deviated 2) Plastic brackets of the catches may be deformed causing the push catch to fail. SOLUTION: The tools of the push catch & plastic brackets have been modified and implemented into production from week 9835 onwards. For repair they should be replaced by good ones.The service codes are as follows: 1. For FW72C, FW530C, FW535C, FW538, FW550C, FW570C, FW575C, FW765P, FW775P and FW795W Pos 244 - 4822 402 10621Push Catch Pos 246 - 4822 402 11246Bracket, Right Pos 247 - 4822 402 11245Bracket, Left 2. For FW346C, FW356C, FW358C, FW359C and FW388V Pos 275 - 4822 402 10621Push Catch Pos 276 - 4822 402 11246Bracket, Right Pos 277 - 4822 402 11245Bracket, Left 3. For FW850C, FW855C, FW860P, FW880P and FW880W Pos 248 - 4822 402 10621Push Catch Pos 249 - 4822 402 11245Bracket, Left Pos 250 - 4822 402 11246Bracket, Right

MODEL: FW880W SYMPTOM: CD tray moves out and in again or stops at half way. CURE: When the CD tray is in motion the inside arm of the switch bracket (pos 123) hits the micro switch earlier than the main lever. The problem can be solved by cutting a section of the inside arm of the switch bracket. REMARKS : The phenomenon can be simulated by tilting the set at either side for 1cm or more. X 7 6 1 IRIS CODE

MODEL: FW880W SYMPTOM: the tray doesmove out and immediately go in again or stops half way CURE: When the CD tray is in motion the inside arm of the switch bracket (pos 123) hits the micro switch earlier than the main lever. The problem can be solved by cutting a section of the inside arm of the switch bracket as indicated below: REMARKS : The phenomenon can be simulated by tilting the set at either side for 1cm or more.

MODEL: FW880W SYMPTOM: Mic-mixing cannot be recorded when the selected source is TAPE 1 CURE: Recording of mic-mixing with TAPE 1 source is not supported because the set will switch automatically into dubbing mode.The IFU (recording the mixed sound section) does caused some confusion but will not be update because production will end in April 1999 REMARKS : No update for IFU

MODEL: FW890P SYMPTOM: The set behaves strangely after switching it on CURE: Additional information to Service Newsletter item AS99.08.03. Although not mentioned explicitly, the EEPROM must be cleared after hardware modification. The complete procedure is described on the next page. Step 5, clearing the EEPROM via the Service Test Program “EEPROM Format Test”, has been added. via Standby button or mains supply re-connection. Strange behaviour includes: • Loss of Tuner preset stations or tuning grid returns to 9kHz condition • When changing source to Tuner the set stalls for a few seconds and may or may not switch to Tuner mode • CD carousel rotates or the CD tray moves outwards • Tape deck motors start to run or relay starts activation

and the deck starts engaging and disengaging • During this strange behaviour condition the set does not go into demo mode The problem is caused by corrupted data being written into the EEPROM IC 7417 via the I2C_DATA line. The data corruption can be verified and cleared by performing an “EEPROM Format Test” in the Service Test Program. The problem can be solved by the following hardware modification on the front board: 1. Ensure (change if necessary) that resistor 3596 is 68½ (4822 117 12521) 2. Change resistor 3611 to 4.7k½ (4822 051 20472) 3. Remove SMD jumper 4455 4. Add resistor 1k½ (4822 050 11002) with insulated leads between pin 37 of microprocessor IC 7413 and junction of resistors 3611 and 3613 (left solder pad of jumper 4455) 5. Clear the corrupted data in the EEPROM as follows: a) Enter the Service Test Program by holding the PLAY 2 and AUX button depressed while switching on the mains supply b) Perform an “EEPROM Format Test” by pressing the SEARCH 5 button to reset the EEPROM to default data c) Exit the Service Test Program by disconnecting the mains supply

MODEL: FW890P SYMPTOM: The set behaves strangely after switching it on CURE: Full symptom: The set behaves strangely after switching it on via Standby button or mains supply re-connection. Strange behaviour includes: - Loss of Tuner preset stations or tuning grid returns to 9kHz condition - When changing source to Tuner the set stalls for a few seconds and may or may not switch to Tuner mode - CD carousel rotates or the CD tray moves outwards Tape deck motors start to run or relay starts activation and the deck starts engaging and disengaging - During this strange behaviour condition the set does not go into demo mode CURE : The problem is caused by corrupted data being written into the EEPROM IC 7417 via the I2C_DATA line. The data corruption can be verified and cleared by performing an EEPROM Format Test in the Service Test Program. The problem can be solved by the following hardware modification on the front board: 1. Ensure (change if necessary) that resistor 3596 is 68 Ohm (4822 117 12521) 2. Change resistor 3611 to 4.7 kOhm (4822 051 20472) 3. Remove SMD jumper 4455 4. Add resistor 1 kOhm (4822 050 11002) with insulated leads between pin 37 of microprocessor IC 7413 and junction of resistors 3611 and 3613 (left solder pad of jumper 4455) 5. Clear the corrupted data in the EEPROM as follows: a) Enter the Service Test Program by holding the PLAY 2 and AUX button depressed while switching on the mains supply b) Perform an EEPROM Format Test by pressing the SEARCH 5 button to reset the EEPROM to default data c) Exit the Service Test Program by disconnecting the mains supply

MODEL: FW890P SYMPTOM: CD does not play and the display shows “DISC NOT FINALIZED” CURE: The problem happens mainly with Brazi?.s Millennium disc and is resolved by upgrading the software of the Front microprocessor IC (pos. 7413) to version 20. The service code for the new IC reads 9965 000 02901.

MODEL: FW890P SYMPTOM: Additional information to Service Newsletter CURE: Additional information to Service Newsletter items AS99.08.03 and AS99.10.02: The reliability of EEPROM data can be improved further by changing the value of resistor 3611 to 2.2k5% 0.1W (4822 117 11449).

MODEL: FW890P SYMPTOM: Correction to the Service Manual, Partslist CURE: The following flex-foils and flex-foil-connector were missing and have been added to the partlist of the 3CDC-99 Module (chapter 10). pos.code numberarticle description ––––––––––––––––––––––––––––––––––––––––––––– 1805 2422 025 09768 Flex-Foil-Connector 19P 8001 4822 320 12232 Flex-Foil 15P 480mm 8001 4822 320 12658 Flex-Foil 19P 480mm 8001 4822 320 12659 Flex-Foil 23P 480mm 8001 4822 320 12729 Flex-Foil 23P 400mm 8005 3103 308 91820 Flex-Foil 15P 95mm

MODEL: FW890P SYMPTOM: Correction of Service Newsletter, item AS99.10.02 CURE: Correction of Service Newsletter, item AS99.10.02 The correct buttons for entering the Service Test Progam are “AUX” + “PRESET UP” instead of “AUX” + “PLAY”.

MODEL: FW890P SYMPTOM: resistor has been changed on the front board CURE: The following resistor has been changed on the front board to improve the data reliability to the EEPROM: 3596 4822 117 12521 68E 1% 0,1W

MODEL: FW890P SYMPTOM: Correction to Service Manual CURE: Correction to Service Manual, Electrical Partslist page 11-12. The article description of item 7930 should read: 4822 209 16166 STK407-040B

MODEL: FW890P/21 SYMPTOM: part has been added to the service parts list: CURE: Pos Service code Article decription –––––––––––––––––––––––––––––––––––––––––––––– 386 4822 263 21092 ADAPTOR PLUG 6A 250V

MODEL: FW898W SYMPTOM: The set behaves strangely after switching it on CURE: Additional information to Service Newsletter item AS99.08.03. Although not mentioned explicitly, the EEPROM must be cleared after hardware modification. The complete procedure is described on the next page. Step 5, clearing the EEPROM via the Service Test Program “EEPROM Format Test”, has been added. via Standby button or mains supply re-connection. Strange behaviour includes: • Loss of Tuner preset stations or tuning grid returns to 9kHz condition • When changing source to Tuner the set stalls for a few seconds and may or may not switch to Tuner mode • CD carousel rotates or the CD tray moves outwards • Tape deck motors start to run or relay starts activation and the deck starts engaging and disengaging • During this strange behaviour condition the set does not go into demo mode The problem is caused by corrupted data being written into the EEPROM IC 7417 via the I2C_DATA line. The data corruption can be verified and cleared by performing an “EEPROM Format Test” in the Service Test Program. The problem can be solved by the following hardware modification on the front board: 1. Ensure (change if necessary) that resistor 3596 is 68½ (4822 117 12521) 2. Change resistor 3611 to 4.7k½ (4822 051 20472) 3. Remove SMD jumper 4455 4. Add resistor 1k½ (4822 050 11002) with insulated leads between pin 37 of microprocessor IC 7413 and junction of resistors 3611 and 3613 (left solder pad of

jumper 4455) 5. Clear the corrupted data in the EEPROM as follows: a) Enter the Service Test Program by holding the PLAY 2 and AUX button depressed while switching on the mains supply b) Perform an “EEPROM Format Test” by pressing the SEARCH 5 button to reset the EEPROM to default data c) Exit the Service Test Program by disconnecting the mains supply

MODEL: FW898W SYMPTOM: The set behaves strangely after switching it on CURE: Full symptom: The set behaves strangely after switching it on via Standby button or mains supply re-connection. Strange behaviour includes: - Loss of Tuner preset stations or tuning grid returns to 9kHz condition - When changing source to Tuner the set stalls for a few seconds and may or may not switch to Tuner mode - CD carousel rotates or the CD tray moves outwards Tape deck motors start to run or relay starts activation and the deck starts engaging and disengaging - During this strange behaviour condition the set does not go into demo mode CURE : The problem is caused by corrupted data being written into the EEPROM IC 7417 via the I2C_DATA line. The data corruption can be verified and cleared by performing an EEPROM Format Test in the Service Test Program. The problem can be solved by the following hardware modification on the front board: 1. Ensure (change if necessary) that resistor 3596 is 68 Ohm (4822 117 12521) 2. Change resistor 3611 to 4.7 kOhm (4822 051 20472) 3. Remove SMD jumper 4455 4. Add resistor 1 kOhm (4822 050 11002) with insulated leads between pin 37 of microprocessor IC 7413 and junction of resistors 3611 and 3613 (left solder pad of jumper 4455) 5. Clear the corrupted data in the EEPROM as follows: a) Enter the Service Test Program by holding the PLAY 2 and AUX button depressed while switching on the mains supply b) Perform an EEPROM Format Test by pressing the SEARCH 5 button to reset the EEPROM to default data c) Exit the Service Test Program by disconnecting the mains supply

MODEL: FW898W SYMPTOM: CD does not play and the display shows “DISC NOT FINALIZED”. CURE: The problem happens mainly with Brazi?.s Millennium disc and is resolved by upgrading the software of the Front microprocessor IC (pos. 7413) to version 20. The service code for the new IC reads 9965 000 02901.

MODEL: FW898W SYMPTOM: Additional information to Service Newsletter CURE: Additional information to Service Newsletter items AS99.08.03 and AS99.10.02: The reliability of EEPROM data can be improved further by changing the value of resistor 3611 to 2.2k5% 0.1W (4822 117 11449).

MODEL: FW898W SYMPTOM: Correction to the Service Manual, Partslist CURE: The following flex-foils and flex-foil-connector were missing and have been added to the partlist of the 3CDC-99 Module (chapter 10). pos.code numberarticle description ––––––––––––––––––––––––––––––––––––––––––––– 1805 2422 025 09768 Flex-Foil-Connector 19P 8001 4822 320 12232 Flex-Foil 15P 480mm 8001 4822 320 12658 Flex-Foil 19P 480mm 8001 4822 320 12659 Flex-Foil 23P 480mm 8001 4822 320 12729 Flex-Foil 23P 400mm 8005 3103 308 91820 Flex-Foil 15P 95mm

MODEL: FW898W SYMPTOM: resistor has been changed on the front board CURE: The following resistor has been changed on the front board to improve the data reliability to the EEPROM: 3596 4822 117 12521 68E 1% 0,1W

MODEL: FW898W SYMPTOM: Correction of Service Newsletter, item AS99.10.02 CURE: Correction of Service Newsletter, item AS99.10.02 The correct buttons for entering the Service Test Progam are “AUX” + “PRESET UP” instead of “AUX” + “PLAY”.

MODEL: FW898W SYMPTOM: Correction to Service Manual CURE: Correction to Service Manual, Electrical Partslist page 11-12. The article description of item 7930 should read: 4822 209 16166 STK407-040B

MODEL: FW898W/21 SYMPTOM: part has been added to the service parts list: CURE: Pos Service code Article decription –––––––––––––––––––––––––––––––––––––––––––––– 386 4822 263 21092 ADAPTOR PLUG 6A 250V

MODEL: FW898W/34 SYMPTOM: FM 65.81-74MHz cannot be tuned on the set CURE: All Mini Systems 1999 versions /34 are set to the default FM range of 87.5-108MHz when leaving the factory. The lower FM1 range of 65.81-74MHz can be turned on by holding the undermentioned keys depressed, while switching on the mains supply: a) “Tuner” & “Search Up” for all models except the MZ7/34 b) “Tuner” & “Next” for MZ7/34 only The display shows “FM1 ON”. REMARKS : By repeating the procedure the FM1 range will be switched off again.

MODEL: FW898W/34 SYMPTOM: FM 65.81-74MHz cannot be tuned on the set (IRIS CODE 121X) CURE: All Mini Systems 1999 versions /34 are set to default FM range of 87.5-108MHz before leaving the factory.The lower FM1 range of 65.81-74MHz can be turn on by holding down the undermentioned keys while switching on the Mains supply to the set: a) Tuner & Search Up for all models except the MZ7/34 b) Tuner & Next for MZ7/34 only The display will shows FM1 ON. By repeating the procedure the FM1 will be switched off.

MODEL: FW91 SYMPTOM: No EASY function of CD player. CURE: The polarity of capacitor C2740 on the Interconnection Board in CD players CD070, CD080 or CD091 is wrong. Also in Service Manual 4822 725 24012 on page 14, the polarization of C2740 in the circuit diagram and the panel drawing is not correct. This can be solved by changing the polarity of capacitor C2740. REMARKS: Corrective action: The polarity of capacitor C2740 is corrected since week 9347. Modified circuit diagram and PCB will be published in Service Information A94-250.

MODEL: FW91 SYMPTOM: CD is sticking behind the clamper as the tray is opening. CURE: This problem only occurs with CD's with a small upright edge outside the clamping area. The rim of the clamper sticks behind this edge when opening the tray. To improve the functional movement of the tray release, the clamper has been modified with a gradual slope at the outer rim. Replace clamper (item 108 in exploded view of loader) by a modified clamper 4822 402 61412. The modified clamper will be on stock from week 9406 onwards. REMARKS: Improvement of tray release has been introduced by lowering the height of the sub-chassis with 0.5mm. Introduction date: Production Hasselt from AH 9342 onwards. Production Singapore from SV 9349 onwards.

MODEL: FW91 SYMPTOM: Codenumber information CURE: Codenumber information The correct service code for the µP IC 7401 on the control and display panel of CD player (CD091) reads 4822 209 33658, type TMP87CM70F with mask CD91.1. REMARKS : This publication will be followed by a service information.

MODEL: FW910R SYMPTOM: CD does not play and the display shows “DISC NOT FINALIZED”. CURE: The problem happens mainly with Brazi?.s Millennium disc and is resolved by upgrading the software of the Front microprocessor IC. The service codes for the new ICs are: 1. 9965 000 01676 (version 25) for FW350C, FW390C, FW391C, FW396C, FW398C, FW910R and FW910SR 2. 9965 000 01977 (version 35) for FW545C, FW548C, FW555C, FW585C, FW590C, FW595C, FW930 and FW930R 3. 9965 000 01978 (version 32) for FW768P and FW798W

MODEL: FW910R SYMPTOM: CD does not play and the display shows DISC NOT FINALIZED. CURE: The problem happens mainly with Brazil's Millennium disc and is resolved by upgrading the software of the Front microprocessor IC. The service code for the new IC is 996500001676 (version 25)

MODEL: FW910SR SYMPTOM: CD does not play and the display shows “DISC NOT FINALIZED”. CURE: The problem happens mainly with Brazi?.s Millennium disc and is resolved by upgrading the software of the Front microprocessor IC. The service codes for the new ICs are: 1. 9965 000 01676 (version 25) for FW350C, FW390C, FW391C, FW396C, FW398C, FW910R and FW910SR 2. 9965 000 01977 (version 35) for FW545C, FW548C, FW555C, FW585C, FW590C, FW595C, FW930 and FW930R 3. 9965 000 01978 (version 32) for FW768P and FW798W

MODEL: FW910SR SYMPTOM: CD does not play and the display shows DISC NOT FINALIZED. CURE: The problem happens mainly with Brazil's Millennium disc and is resolved by upgrading the software of the Front microprocessor IC. The service code for the new IC is 996500001676 (version 25)

MODEL: FW930 SYMPTOM: CD does not play and the display shows “DISC NOT FINALIZED”. CURE: The problem happens mainly with Brazi?.s Millennium disc and is resolved by upgrading the software of the Front microprocessor IC. The service codes for the new ICs are: 1. 9965 000 01676 (version 25) for FW350C, FW390C, FW391C, FW396C, FW398C, FW910R and FW910SR 2. 9965 000 01977 (version 35) for FW545C, FW548C, FW555C, FW585C, FW590C, FW595C, FW930 and FW930R 3. 9965 000 01978 (version 32) for FW768P and FW798W

MODEL: FW930 SYMPTOM: CD does not play and the display shows DISC NOT FINALIZED. CURE: The problem happens mainly with Brazil's Millennium disc and is resolved by upgrading the software of the Front microprocessor IC. The service code for the new IC is 996500001977 (version 35)

MODEL: FW930R SYMPTOM: CD does not play and the display shows “DISC NOT FINALIZED”. CURE: The problem happens mainly with Brazi?.s Millennium disc and is resolved by upgrading the software of the Front microprocessor IC. The service codes for the new ICs are: 1. 9965 000 01676 (version 25) for FW350C, FW390C, FW391C, FW396C, FW398C, FW910R and FW910SR 2. 9965 000 01977 (version 35) for FW545C, FW548C, FW555C, FW585C, FW590C, FW595C, FW930 and FW930R 3. 9965 000 01978 (version 32) for FW768P and FW798W

MODEL: FW-C1 SYMPTOM: high frequency pitch (around 4kHz - 5kHz) is audible from the front CURE: The source of the noise comes from the filtering SMD capacitors 2418, 2420, 2476 and 2477. The problem is resolved by adding 2 elcaps of 4,7µF (4822 124 40769) in series across the existing SMDs capacitors of the -F2 supply line. The elcaps can by soldered onto the copperside of the Front board as indicated in the circuit and SMD layout view below. Rework procedure: 1) Dismantle the Cover CDC and Front assembly. 2) Prepare the 2 elcaps of 4,7µF (4822 124 40769) in series. 3) Place an insulation tape onto the Front board (area under the elcaps) to prevent the elcaps and their leads from short-circuiting to the surrounding SMD components and pads. 4) Position the elcaps horizontally over the insulation tape and solder them to the copper pads as shown. Make sure that the elcaps are close to the Front board so that there is no contact to the moving parts of the CDC module. 5) Re-assemble the Front assembly and Cover CDC.

MODEL: FW-C1 SYMPTOM: cassette door will not open completely when a cassette is inside CURE: The capstan pin (pos. 41) of the tape mechanism will not disengage fully from the cassette tape. The problem is caused by a combination of the following: a) Leaf springs (pos. 199) which are responsible to create a rotating movement for the cassette during “door eject” are too weak to push the cassette out of the capstan pin. b) Mis-matched housing parts of the cassette (see fig. 1) rub/scratch against the support ribs of the cassette door (pos. 200). c) Uneven cassette door support ribs create an additional friction to the rotating movement of the cassette. The problem is resolved by: 1) Cutting 2 ribs (both sides) on the cassette door in order to enable a bigger rotational movement for the door during eject (see figure 2 & 3). 2) Increasing the spring force on the cassette

by pulling the spring in the direction and up to the level shown in figure 3. Caution: Ensure that the cassette is able to smoothly slide into the cassette door before returning the set to the customer !

MODEL: FW-C10 SYMPTOM: cassette door will not open completely when a cassette is inside CURE: The capstan pin (pos. 41) of the tape mechanism will not disengage fully from the cassette tape. The problem is caused by a combination of the following: a) Leaf springs (pos. 199) which are responsible to create a rotating movement for the cassette during “door eject” are too weak to push the cassette out of the capstan pin. b) Mis-matched housing parts of the cassette (see fig. 1) rub/scratch against the support ribs of the cassette door (pos. 200). c) Uneven cassette door support ribs create an additional friction to the rotating movement of the cassette. The problem is resolved by: 1) Cutting 2 ribs (both sides) on the cassette door in order to enable a bigger rotational movement for the door during eject (see figure 2 & 3). 2) Increasing the spring force on the cassette by pulling the spring in the direction and up to the level shown in figure 3. Caution: Ensure that the cassette is able to smoothly slide into the cassette door before returning the set to the customer !

MODEL: FWC10 SYMPTOM: high frequency pitch (around 4kHz - 5kHz) is audible from the front CURE: The source of the noise comes from the filtering SMD capacitors 2418, 2420, 2476 and 2477. The problem is resolved by adding 2 elcaps of 4,7µF (4822 124 40769) in series across the existing SMDs capacitors of the -F2 supply line. The elcaps can by soldered onto the copperside of the Front board as indicated in the circuit and SMD layout view below. Rework procedure: 1) Dismantle the Cover CDC and Front assembly. 2) Prepare the 2 elcaps of 4,7µF (4822 124 40769) in series. 3) Place an insulation tape onto the Front board (area under the elcaps) to prevent the elcaps and their leads from short-circuiting to the surrounding SMD components and pads. 4) Position the elcaps horizontally over the insulation tape and solder them to the copper pads as shown. Make sure that the elcaps are close to the Front board so that there is no contact to the moving parts of the CDC module. 5) Re-assemble the Front assembly and Cover CDC.





MODEL: FW-C30 SYMPTOM: cassette door will not open completely when a cassette is inside CURE: The capstan pin (pos. 41) of the tape mechanism will not disengage fully from the cassette tape. The problem is caused by a combination of the following: a) Leaf springs (pos. 199) which are responsible to create a rotating movement for the cassette

during “door eject” are too weak to push the cassette out of the capstan pin. b) Mis-matched housing parts of the cassette (see fig. 1) rub/scratch against the support ribs of the cassette door (pos. 200). c) Uneven cassette door support ribs create an additional friction to the rotating movement of the cassette. The problem is resolved by: 1) Cutting 2 ribs (both sides) on the cassette door in order to enable a bigger rotational movement for the door during eject (see figure 2 & 3). 2) Increasing the spring force on the cassette by pulling the spring in the direction and up to the level shown in figure 3. Caution: Ensure that the cassette is able to smoothly slide into the cassette door before returning the set to the customer !



MODEL: FW-C38 SYMPTOM: high frequency pitch (around 4kHz - 5kHz) is audible from the front CURE: The source of the noise comes from the filtering SMD capacitors 2418, 2420, 2476 and 2477. The problem is resolved by adding 2 elcaps of 4,7µF (4822 124 40769) in series across the existing SMDs capacitors of the -F2 supply line. The elcaps can by soldered onto the copperside of the Front board as indicated in the circuit and SMD layout view below. Rework procedure: 1) Dismantle the Cover CDC and Front assembly. 2) Prepare the 2 elcaps of 4,7µF (4822 124 40769) in series. 3) Place an insulation tape onto the Front board (area under the elcaps) to prevent the elcaps and their leads from short-circuiting to the surrounding SMD components and pads. 4)

Position the elcaps horizontally over the insulation tape and solder them to the copper pads as shown. Make sure that the elcaps are close to the Front board so that there is no contact to the moving parts of the CDC module. 5) Re-assemble the Front assembly and Cover CDC.


MODEL: FW-C50 SYMPTOM: high frequency pitch (around 4kHz - 5kHz) is audible from the front CURE: The source of the noise comes from the filtering SMD capacitors 2483 - 2486 for the FTD display supply -F1 and -F2. The problem is resolved by adding 2 elcaps of 4,7µF (4822 124 40769) in series across the existing SMDs capacitors of the -F1 supply line. The elcaps can by soldered onto the copperside of the Front board as indicated in the circuit and SMD layout view below. Rework procedure: 1) Dismantle the Rear Cover, Cover CDC and CDC Module. 2) Prepare the 2 elcaps of 4,7µF (4822 124 40769) in series. 3) Place an insulation tape onto the Front board (area under the elcaps) to prevent the elcaps and their leads from short-circuiting to the surrounding SMD components and pads. 4) Position the elcaps horizontally over the insulation tape and solder them to the copper pads as shown. Make sure that the elcaps are close to the Front board so that there is no contact to the moving parts of the CDC module. 5) Re-assemble the CDC Module, Cover CDC and Rear Cover.





MODEL: FW-C72 SYMPTOM: high frequency pitch (around 4kHz - 5kHz) is audible from the front CURE: The source of the noise comes from the filtering SMD capacitors 2483 - 2486 for the FTD display supply -F1 and -F2. The problem is resolved by adding 2 elcaps of 4,7µF (4822 124 40769) in series across the existing SMDs capacitors of the -F1 supply

line. The elcaps can by soldered onto the copperside of the Front board as indicated in the circuit and SMD layout view below. Rework procedure: 1) Dismantle the Rear Cover, Cover CDC and CDC Module. 2) Prepare the 2 elcaps of 4,7µF (4822 124 40769) in series. 3) Place an insulation tape onto the Front board (area under the elcaps) to prevent the elcaps and their leads from short-circuiting to the surrounding SMD components and pads. 4) Position the elcaps horizontally over the insulation tape and solder them to the copper pads as shown. Make sure that the elcaps are close to the Front board so that there is no contact to the moving parts of the CDC module. 5) Re-assemble the CDC Module, Cover CDC and Rear Cover.


MODEL: FW-P73 SYMPTOM: DPL mode the volume increases spontaneously and turns back CURE: turns back to normal level later (especially at the center loudspeaker). The problem is caused by insufficient current on the VOL_CLK (DPL_V_CLK) line to drive pin 5 of the Volume IC 7712 M62429FP on the AF board. This is solved by changing resistor 3416 on the Front Board from 2,2kE to 680E (4822 117 10361).

MODEL: FW-P73 SYMPTOM: Ticking sound (similar to that of a clock) is audible CURE: is audible from the center speaker during quiet portions of music. The problem is caused by crosstalk from flex-cable 1681 to wire 1572. The problem can be solved by routing wire 1572 outside the wire catches of flex-cable 1572 as shown in the right picture below. REMARKS : flex-cable 1681 AF6-Board wire 1572 placed inside the cable catches wire 1572 placed outside the cable catches

MODEL: FW-P73 SYMPTOM: DPL test tone is distorted (“motor-boating” & lower frequency). CURE: The problem is caused by insufficient capacitor value at pin 1 (noise sequencer) of the DPL IC M62460FP. It is solved by changing capacitor 2769 to 47µF 20% 25V (4822 124 40433)

MODEL: FW-P75 SYMPTOM: Ticking sound (similar to that of a clock) is audible CURE: is audible from the center speaker during quiet portions of music. The problem is caused by crosstalk from flex-cable 1681 to wire 1572. The problem can be solved by

routing wire 1572 outside the wire catches of flex-cable 1572 as shown in the right picture below. REMARKS : flex-cable 1681 AF6-Board wire 1572 placed inside the cable catches wire 1572 placed outside the cable catches

MODEL: FW-P75 SYMPTOM: DPL mode the volume increases spontaneously and turns back CURE: turns back to normal level later (especially at the center loudspeaker). The problem is caused by insufficient current on the VOL_CLK (DPL_V_CLK) line to drive pin 5 of the Volume IC 7712 M62429FP on the AF board. This is solved by changing resistor 3416 on the Front Board from 2,2kE to 680E (4822 117 10361).


MODEL: FW-P75 SYMPTOM: high frequency pitch (around 4kHz - 5kHz) is audible from the front CURE: The source of the noise comes from the filtering SMD capacitors 2483 - 2486 for the FTD display supply -F1 and -F2. The problem is resolved by adding 2 elcaps of 4,7µF (4822 124 40769) in series across the existing SMDs capacitors of the -F1 supply line. The elcaps can by soldered onto the copperside of the Front board as indicated in the circuit and SMD layout view below. Rework procedure: 1) Dismantle the Rear Cover, Cover CDC and CDC Module. 2) Prepare the 2 elcaps of 4,7µF (4822 124 40769) in series. 3) Place an insulation tape onto the Front board (area under the elcaps) to prevent the elcaps and their leads from short-circuiting to the surrounding SMD components and pads. 4) Position the elcaps horizontally over the insulation tape and solder them to the copper pads as shown. Make sure that the elcaps are close to the Front board so that there is no contact to the moving parts of the CDC module. 5) Re-assemble the CDC Module, Cover CDC and Rear Cover.


MODEL: FW-P78 SYMPTOM: high frequency pitch (around 4kHz - 5kHz) is audible from the front CURE: The source of the noise comes from the filtering SMD capacitors 2483 - 2486 for the FTD display supply -F1 and -F2. The problem is resolved by adding 2 elcaps of 4,7µF (4822 124 40769) in series across the existing SMDs capacitors of the -F1 supply line. The elcaps can by soldered onto the copperside of the Front board as indicated in the circuit and SMD layout view below. Rework procedure: 1) Dismantle the Rear Cover, Cover CDC and CDC Module. 2) Prepare the 2 elcaps of 4,7µF (4822 124 40769) in series. 3) Place an insulation tape onto the Front board (area under the elcaps) to prevent the elcaps and their leads from short-circuiting to the surrounding SMD components and pads. 4) Position the elcaps horizontally over the insulation tape and solder them to the copper pads as shown. Make sure that the elcaps are close to the

Front board so that there is no contact to the moving parts of the CDC module. 5) Re-assemble the CDC Module, Cover CDC and Rear Cover.

MODEL: GENERAL SYMPTOM: CD sound interrupts sometimes. CURE: REF FW GENERAL ADDITIONAL SERVICE INFO

MODEL: GENERAL SYMPTOM: IRIS CODE 313X CURE: Further to the last Newsletter issue AS98.09.02, the clock accuracy can also be corrected by replacing the 32.768kHz crystal by an improved crystal. The code for the improved crystal is 2422 543 01069.

MODEL: KT6100 SYMPTOM: Open close button inoperative. CURE: Check connector CN21.

MODEL: KT6100 SYMPTOM: The CD player cannot read-in the TOC and disc speed is not constant. CURE: Check capacitor C205.

MODEL: KT6100 SYMPTOM: The CD player does not start playing. CURE: Check capacitor C287.

MODEL: KT6100 SYMPTOM: No display, only leds burning. CURE: Check R821 on displayboard

MODEL: KT6100 SYMPTOM: The CD player skips tracks continuously. CURE: Check R253

MODEL: KT6100 SYMPTOM: The tray belt falls out and has to be remounted. CURE: Temporarily the inner diameter of the mounted belt has been too big. This has been corrected by changing the diameter from 38.4mm to 37.7mm.The old belt has to be replaced by a smaller one, actual stock of 4822 358 31223 has been corrected too. REMARKS : Correct belt has been used in production since week 9420.

MODEL: KT6100 SYMPTOM: Correction of electrical partslist CURE: Correction of electrical partslist The correct service code should read : D802LED green4822 130 83657 D803, D804LED red4822 130 83656.

MODEL: KT6100 SYMPTOM: Corrections to the Service Manual CURE: Corrections to the Service Manual - In the exploded view diagram - cabinet, the service code for item 6 and 7 should read: Item 6: 4822 410 63292KNOB-PLAY/PAUSE Item 7: 4822 410 63293KNOB-STOP

MODEL: KT6100 SYMPTOM: Correction service manual CURE: Correction service manual: - The service code number of item X201, crystal 8.6436 MHz should read 4822 242 81324, instead of 4822 242 81325.

MODEL: M1432 SYMPTOM: Codenumber information CURE: Codenumber information Styling 119 does not mention a codenumber for the control knobs. The 2 knobs are available as one set: 4822 464 10356

MODEL: M17C SYMPTOM: Various failures disappear when the set is opened. CURE: Some connectors can cause intermittent contact. ( Valid for sets from 9646 until 9712) The wiring assemblies are available under: 4822 232 10395 6 pins connector wire 4822 232 10395 4 + 5 pins conn. wire 4822 323 10396 5 pins connector wire 4822 323 10396 6 + 4 pins conn. wire 4822 323 10405 4 + 3 pins conn. wire 4822 323 10405 4 + 4 pins conn. wire

MODEL: M17C SYMPTOM: No sound when switched on after set is switched from LW to Standby CURE: The fault is caused by IC 7101 TEA5762 (4822 209 90315). It is resolved by the following: a) Changing IC 7101 TEA5762 (4822 209 90315) or b) Adding 1pF chip capacitor (4822 122 32447) across the resonator 5121 or c) Changing the chip resistor 3162 from 150k to 270k (4822 051 20274). REMARKS : This problem may be present in all sets using Tuner 95 board produced before 6th March 1997 (week 9710).

MODEL: M17C SYMPTOM: The tape mechanism fails and cassette cannot be taken away. CURE: The problem is due to Cam gear shaft which is cracked. This causes the Cam gear not to return to its stop position. Replacement of control disc (big gear or pos 25) is not recommended because of critical assembly and alignment control. For such problem the complete deck should be replaced. (Reference: Newsletter issue AS97.03 item 03.10) REMARKS : Improved tape mechanism can be recognized by label on the tape mechanism's motor.The label should read: * For MC150, MC170, MC172: 60718xxM/C onwards (year 96, July, 18 onwards) * For FW362, FW363, FW372C, FW373C, FW382V, FW383V, FW395C, FW710C, FW725C, FW730C, FW745C, FW750C, FW770P, FW780P, FW783P, FW788P, FW790P, MC150, MC170, MC172, MX545, MX555, M7C, M17C, M18C, M27C, M28C, M37DC, M38C, M48DC: CWB44..... ....H onwards (H and above ie. H,I,J....) eg. CWB44FR03 7030763IO(70307 ==> 1997-March-07; prod line 63, I=Indonesia, O=latest version)

MODEL: M17C SYMPTOM: Cassette door jams because R/P head is fully retracted after STOP CURE: The is due to Cam Gear screw hole cracked. The problem can only be solved by replacing the complete deck. Improved tape mechanism is implemented into production from week 9743 onwards. REMARKS : See also newsletter information AS97.03.08 and AS97.04.07.

MODEL: M17C SYMPTOM: Repair hint on Tape mechanism CURE: Repair hint on Tape mechanism - During repair or when the Tape mechanism needs to be reset for any reason, the flywheel can be turned manually in clockwise direction only.Turning in counter clockwise direction will dent or damage some of the gears in the mechanism. REMARKS : For more details see Newsletter AS97.03 item 03.08




MODEL: M25 SYMPTOM: Replacement of CDM12.1 for 7-Disc Changer CURE: Production of CDM12.1 will stop. For service purpose CDM12.1 (4822 691 30278) will be replaced by service kit VAM1201 (4822 310 11263) when stock depletes. As an alternative, the CDM12.1 can be replaced by CDM12.1/T (4822 691 30343) without any further modifications.

MODEL: M25 SYMPTOM: Replacement of CDM12.1 for 7-Disc Changer CURE: Replacement of CDM12.1 for 7-Disc Changer - Production of CDM12.1 will stop. For service purpose CDM12.1 (4822 691 30278) will be replaced by service kit VAM1201 (4822 310 11263) when stock depletes. For the above mentioned sets with 7-

Disc Changer the new VAM1201 does not fit. As an alternative, the CDM12.1 can be replaced by CDM12.1/T (4822 691 30343) without any further modifications.

MODEL: M25 SYMPTOM: Spare part information CURE: Spare part information Pos 48 for the CDC mechanism is now available as service spare part. The 12NC is 4822 401 11681Chassis clamper.


MODEL: M26 SYMPTOM: Spare part information CURE: Spare part information Pos 48 for the CDC mechanism is now available as service spare part. The 12NC is 4822 401 11681Chassis clamper.

MODEL: M26 SYMPTOM: Replacement of CDM12.1 for 7-Disc Changer CURE: Replacement of CDM12.1 for 7-Disc Changer - Production of CDM12.1 will stop. For service purpose CDM12.1 (4822 691 30278) will be replaced by service kit VAM1201 (4822 310 11263) when stock depletes. For the above mentioned sets with 7-Disc Changer the new VAM1201 does not fit. As an alternative, the CDM12.1 can be replaced by CDM12.1/T (4822 691 30343) without any further modifications.








MODEL: M28C SYMPTOM: Repair hint on Tape mechanism CURE: Repair hint on Tape mechanism - During repair or when the Tape mechanism needs to be reset for any reason, the flywheel can be turned manually in clockwise

direction only.Turning in counter clockwise direction will dent or damage some of the gears in the mechanism. REMARKS : For more details see Newsletter AS97.03 item 03.08

MODEL: M37DC SYMPTOM: The tape mechanism fails and cassette cannot be taken away. CURE: The problem is due to Cam gear shaft which is cracked. This causes the Cam gear not to return to its stop position. Replacement of control disc (big gear or pos 25) is not recommended because of critical assembly and alignment control. For such problem the complete deck should be replaced. (Reference: Newsletter issue AS97.03 item 03.10) REMARKS : Improved tape mechanism can be recognized by label on the tape mechanism's motor.The label should read: * For MC150, MC170, MC172: 60718xxM/C onwards (year 96, July, 18 onwards) * For FW362, FW363, FW372C, FW373C, FW382V, FW383V, FW395C, FW710C, FW725C, FW730C, FW745C, FW750C, FW770P, FW780P, FW783P, FW788P, FW790P, MC150, MC170, MC172, MX545, MX555, M7C, M17C, M18C, M27C, M28C, M37DC, M38C, M48DC: CWB44..... ....H onwards (H and above ie. H,I,J....) eg. CWB44FR03 7030763IO(70307 ==> 1997-March-07; prod line 63, I=Indonesia, O=latest version)

MODEL: M37DC SYMPTOM: No sound when switched on after set is switched from LW to Standby CURE: The fault is caused by IC 7101 TEA5762 (4822 209 90315). It is resolved by the following: a) Changing IC 7101 TEA5762 (4822 209 90315) or b) Adding 1pF chip capacitor (4822 122 32447) across the resonator 5121 or c) Changing the chip resistor 3162 from 150k to 270k (4822 051 20274). REMARKS : This problem may be present in all sets using Tuner 95 board produced before 6th March 1997 (week 9710).

MODEL: M37DC SYMPTOM: Cassette door jams because R/P head is fully retracted after STOP CURE: The is due to Cam Gear screw hole cracked. The problem can only be solved by replacing the complete deck. Improved tape mechanism is implemented into production from week 9743 onwards. REMARKS : See also newsletter information AS97.03.08 and AS97.04.07.

MODEL: M37DC SYMPTOM: Repair hint on Tape mechanism CURE: Repair hint on Tape mechanism - During repair or when the Tape mechanism needs to be reset for any reason, the flywheel can be turned manually in clockwise direction only.Turning in counter clockwise direction will dent or damage some of the gears in the mechanism. REMARKS : For more details see Newsletter AS97.03 item 03.08

MODEL: M38C SYMPTOM: The tape mechanism fails and cassette cannot be taken away. CURE: The problem is due to Cam gear shaft which is cracked. This causes the Cam gear not to return to its stop position. Replacement of control disc (big gear or pos 25) is not recommended because of critical assembly and alignment control. For such problem the complete deck should be replaced. (Reference: Newsletter issue AS97.03 item 03.10) REMARKS : Improved tape mechanism can be recognized by label on the tape mechanism's motor.The label should read: * For MC150, MC170, MC172:

60718xxM/C onwards (year 96, July, 18 onwards) * For FW362, FW363, FW372C, FW373C, FW382V, FW383V, FW395C, FW710C, FW725C, FW730C, FW745C, FW750C, FW770P, FW780P, FW783P, FW788P, FW790P, MC150, MC170, MC172, MX545, MX555, M7C, M17C, M18C, M27C, M28C, M37DC, M38C, M48DC: CWB44..... ....H onwards (H and above ie. H,I,J....) eg. CWB44FR03 7030763IO(70307 ==> 1997-March-07; prod line 63, I=Indonesia, O=latest version)



MODEL: M48DC SYMPTOM: Cassette door jams because R/P head is fully retracted after STOP CURE: The is due to Cam Gear screw hole cracked. The problem can only be solved by replacing the complete deck. Improved tape mechanism is implemented into production from week 9743 onwards. REMARKS : See also newsletter information AS97.03.08 and AS97.04.07.

MODEL: M48DC SYMPTOM: The tape mechanism fails and cassette cannot be taken away. CURE: The problem is due to Cam gear shaft which is cracked. This causes the Cam gear not to return to its stop position. Replacement of control disc (big gear or pos 25) is not recommended because of critical assembly and alignment control. For such problem the complete deck should be replaced. (Reference: Newsletter issue AS97.03 item 03.10) REMARKS : Improved tape mechanism can be recognized by label on the tape mechanism's motor.The label should read: * For MC150, MC170, MC172: 60718xxM/C onwards (year 96, July, 18 onwards) * For FW362, FW363, FW372C, FW373C, FW382V, FW383V, FW395C, FW710C, FW725C, FW730C, FW745C, FW750C, FW770P, FW780P, FW783P, FW788P, FW790P, MC150, MC170, MC172, MX545, MX555, M7C, M17C, M18C, M27C, M28C, M37DC, M38C, M48DC: CWB44..... ....H onwards (H and above ie. H,I,J....) eg. CWB44FR03 7030763IO(70307 ==> 1997-March-07; prod line 63, I=Indonesia, O=latest version)

MODEL: M48DC SYMPTOM: Repair hint on Tape mechanism CURE: Repair hint on Tape mechanism - During repair or when the Tape mechanism needs to be reset for any reason, the flywheel can be turned manually in clockwise direction only.Turning in counter clockwise direction will dent or damage some of the

gears in the mechanism. REMARKS : For more details see Newsletter AS97.03 item 03.08


MODEL: M6 SYMPTOM: Replacement of CDM12.1 for 7-Disc Changer CURE: Replacement of CDM12.1 for 7-Disc Changer - Production of CDM12.1 will stop. For service purpose CDM12.1 (4822 691 30278) will be replaced by service kit VAM1201 (4822 310 11263) when stock depletes. For the above mentioned sets with 7-Disc Changer the new VAM1201 does not fit. As an alternative, the CDM12.1 can be replaced by CDM12.1/T (4822 691 30343) without any further modifications.






MODEL: MC115 SYMPTOM: the following parts were added to the service partslist: CURE: poscode number article description –––––––––––––––––––––––––––––––––––––––– 506 3103 304 65290 button set “power” 507 3103 304 65390 cap-IR 508 3103 304 65280 button set + cap 509 3103 304 65310 button “surround” 511 3103 304 65280 button set + cap 512 3103 304 65300 button set “volume”

MODEL: MC118 SYMPTOM: Correction to Service Manual, partslist CURE: The codenumber of the CD Door Switch (item 1025) is missing. The switch is available with codenumber 4822 276 13963.

MODEL: MC130 SYMPTOM: Volume right channel too low. CURE: Check capacitor C2550 for internal resistance.

MODEL: MC130 SYMPTOM: Right channel crackling sound CURE: Check C2550

MODEL: MC130 SYMPTOM: Various failures disappear when the set is opened. CURE: Some connectors can cause intermittent contact. ( Valid for sets from 9646 until 9712) The wiring assemblies are available under: 4822 232 10395 6 pins connector wire 4822 232 10395 4 + 5 pins conn. wire 4822 323 10396 5 pins connector wire 4822 323 10396 6 + 4 pins conn. wire 4822 323 10405 4 + 3 pins conn. wire 4822 323 10405 4 + 4 pins conn. wire

MODEL: MC130 SYMPTOM: No sound when switched on after set is switched from LW to Standby CURE: The fault is caused by IC 7101 TEA5762 (4822 209 90315). It is resolved by the following: a) Changing IC 7101 TEA5762 (4822 209 90315) or b) Adding 1pF chip capacitor (4822 122 32447) across the resonator 5121 or c) Changing the chip resistor

3162 from 150k to 270k (4822 051 20274). REMARKS : This problem may be present in all sets using Tuner 95 board produced before 6th March 1997 (week 9710).

MODEL: MC130 SYMPTOM: The clock is inaccurate and runs 20 seconds too slow per day CURE: Change capacitors 2404 and 2405 from 120pF to 15pF (5322 122 33869).

MODEL: MC130 SYMPTOM: Cassette door jams with cassette inside during eject CURE: The problem is caused by deformation of the cassette door's plastic springs. For repair the cassette door must be replaced by an improved cassette door.Improved casette doors can be recognized by a step at the bottom edge of the door (see picture). REMARKS : Improved cassette doors have been implemented in production from week 9802 onwards (sets with serialno. MA...). See also Service Newsletter AS97.01.17

MODEL: MC130 SYMPTOM: Addition to parts list CURE: Addition to parts list: The service code of item 1290, Loudspeaker Socket in the chapter on Power Board is 4822 265 10967.

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