วิทยุ fm am
Post on 07-Jul-2018
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AM-FM FM
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p1 ( 2258x3020x2 bmp)
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1 1 1
2 3
6 6
AM 9 AM 13
13 14
FM 16 FM 17
18 2 22
22 23 23
23 24
1. 252. 263. 274. 28
3 AM 31 31
32 AM 33
AM 34 AM 35
35
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36 36
38 39
40 41
IF AGC 43 AM 46
4 FM –FM 49 FM 49
FM 49
FM 50
52
IF 53
55
AFC 56
58
58
FM 59 FM 60
AM/FM 61 5 65
65
65
65
66 71
71 71 72
75 79
80
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6 AM-FM 85 AM 85 IF AM 86
IF AM 87 IF AM 88
AM 89 89
AM 90 FM 91
91
IF 93
94
7 97 97
97
101
103
104 104
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( ) ( )
( 20 -20 )
1) ¼ ½ 300 25
2)
3)
(Modulation)
(Demodulation) ( Detect )
( )
3
1. ( Amplitude modulation AM)2. (Frequency modulation FM)3. ( Phase modulation PM)
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1.1
1.1
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(Frequency domain) 1.2
3 3
1) (Sine weve ) 1.2 ( )
1.3 (Spectrum analyzer)
1
1
1.2 1.3
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2) (Square wave) 1.4 1 (Fundamental) 1
1.4
1.5
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3) (Saw-toothed wave) 1.6 1.6 ( )
1.6
1.7
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AM 1.8
( ) ( )
AM 1.8 ( ) AM (Envelope) 1.9
( ) 1.9 ( ) AM 1.9 ( ) 1.9 ( ) AM
1.9 ( )
1.8
1.9 1.9 ( ) 1.9 ( )
1.10 1.10 ( ) 40 Vp-p 1.10 ( ) 100
80 Vp-p 40 Vp-p
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1.9 1.10 ( ) 50 60 Vp-p
20 Vp-p 40 Vp-p = (Emax- Emin) / (Emax+Emin ) (100%)
1.10
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1.11 AM AM
AM 1.11 ( ) 1.11 ( )
(Over modulation)
AM AM 1.12 ( )
1.12 ( ) 1.12 ( )
1.12 ( )
1.11
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1.12
AM AM ( 1.13 )
AM 1 10 AM
1 10 1 10
(Band pass filter)
10 1 10 1.13 ( ) 1
1 10 AM
1
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AM 1 (Sideband )
1.13 ( )
(Upper sideband USB) USB
USB = fc+fm fc ,fm
(Lower sideband LSB) LSB
LSB = fc-fm
1.13 AM
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AM 2 USB LSB 1.13 ( )
AM AM
1.14 A
AM
AM AM ( USB LSB)
1.14
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1.15 AM 1.15 AM
1.15 ( ) 100
2
1.15 ( ) 50
1.15 ( )
1
1 3
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AM 1.15 AM
2
AM AM LSB USB (Bandwidth) AM 2
15 AM 30 AM 2
FM 1.16 ( )
1.16 ( ) 1.16 ( ) FM to FM
t1
1.16
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t2
t4 t8
(Frequencydeviation ) 100 99.9 100.1 +/- 0.1 -
+/- 100 FM
1,000 FM 1,000
10
+/- 100 10,000
+/- 100 50
FM 1) 2) 3)
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1.17 PM FM 1.17 FM PM
t4 PM FM FM (Indirect FM)
100 1,000 100 x 360 = 36,000 1,000
360,000 PM FM
1) PM
2) FM
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FM PM FM PM PM
FM FM PM PM FM RC
1.18 PM FM 1.18 ( ) (Low pass filter) FM
FM AM PM
( High pass filter) PM
FM AM FM AM
2 USB LSB FM
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AM FM FM
FM
1.19
2.4 FM
1.19 FM
FM FM
fc+/- fm fc+/-2 fm FM
fd/fm
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1.20
1.20
(Free space)
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1.
2.
3.
4.
5. (Over modulation )
6.
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7. AM
8.
9.
10.
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(Wave)
2.1
2.2
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1. AB CD
(Amplitude)
2. A F (Wavelength)
3. E F G H 1 1 (Cycle)
4. (Sine wave)5. 1 (Frequency) Hz / (Audio wave or audio frequency)
20-20,000 Hz
20-3,400 Hz
(Harmonic)
(Radio wave or radio frequency) 10 KHz - 300 GHz
186,000
( ( Electromagnetic wave)
) (Atmosphere)
(Ionizing)
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2.3
4
2.4
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1. (Ground wave) (Surface wave) VHF, LF MF
(Resistively)
AM (Amplitude modulation) MW ( Medium wave)
LW (Long wave) 3 (Surface wave) (Direct wave) (Ground reflected wave)
2.5
2.6
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2. (Sky wave) HF
HF
2.7
1
HF
SW (Short wave)
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2.8 1 3. (Tropospheric wave)
VHF UHF
VHF
80-100 . 2 1. 2
2. (Relay or repeater station)
2.9
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4. (Directed wave)
UHF
SHF EHF (Line of sight)
3
80 . 3
2.10
2.11
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1. 2. (Relay or repeater station)
80 . 3.
2.12
2.13
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1.
1.1 ( Wave length)1.2 ( Electromagnetic wave )1.3 ( Atmosphere )1.4 (Ground wave )1.5 (Troposphere wave)
2.
3. AM FM
4. FM
5.
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AM (RF = radio frequency)
(Electromagnetic wave)
(Antenna coil)
(AF = Audio frequency)
(Carrier wave) 2 1. AM (Amplitude modulation)
2. FM (Frequency modulation)
)
)
) AM
3.1
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AM ( Amplitude modulator)
3.2 AM (Band)
ITU
(LF = low frequency) 30 KHz - 300 KHz (MF= medium frequency) 300 KHz - 3 MHz
(HF = high frequency) 3 MHz -30 MHz (VHF= very high frequency) 30 MHz- 300 MHz (UHF = ultra high frequency) 300 MHz - 3 GHz
(SHF =super high frequency) 3 GHz - 30 GHz (Wave length)
300 300
λ = 300 /
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Lamda
AM
AM 3 1) (LW = long wave) (LF= low frequency) 30 KHz-300 KHz
150 KHz -500 KHz 2) ( MW = medium wave) (MF =medium
frequency)
300 KHz-3 MHz 500 KHz-1,600 KHz AM
(Broadcast =BC)
AM
3) (SW=short wave) (HF= high frequency) 3 MHz -30 MHz
2 MHz- 30 MHz
6 MHz-10 MHz ( Band width)
28 MHz SW1, SW2 SW3
SW1 2 MHz- 6 MHz SW2 6 MHz-18 MHz SW3
8 MHz-30 MHz
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2
3 HF FM
(Block diagram) AM
AM (superhetterodyne)
3.3
1. (RF amplifier) AM 535 KHz-
1,605 KHz (Tune RF)
2. (Mixer)
IF 455 KHz RF IF
455 KHz
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3. (Local oscillator) OSC. RF OSC. RF IF 455 KHz RF
600 KHz 600 KHz+455 KHz = 1,055 KHz4. . . (IF amplifier)
OSC. RF. IF 455 KHz RF OSC. OSC. RF IF 455 KHz IF IF IF
5. (Detector) IF
IF (AF) DC IF AGC
(Automatic gain control)
6. (AF amplifier)
7. (Power supply) DC AM
AM
(XL) (XC)
XL XC XL XC
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(Tuned)
3.4
(Antenna coil) (Ferrite core) 3 A-E , VC-E B-E VC-E
VC1
C1 VC-E VC1 VC1 A-E
VC1 VC-E VC1
(Oscillator)
(Sine wave)
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3.5
1 2 1 C batt. t1
2 2 3 C L C t2
3 C L (Back EMF) L C C t3 4 L C L
C t4 C
C 1 L-C
(Tank)
C batt. L
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3.6
T1 2
3 VC1 2
3 C1 3
TR1 2 3
VC1 VC 2
180
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3.7 ( Antenna coil)
AM (Per rite core) 3 VC- E VC E
B-E B E
A-E E
3.8
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AM 2 (Gang)
2 2
1) 0 0’ Ac A’
0 0’ OSC A A’
2) A =
O =
E =
TA = TO =
AM
3.9
3.10
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(Converter) AM
(MW) 500 KHz-1,600 KHz 2
1 VC-E VC1
B-E TR1 TR1 R (R1) R (R2) B-E
2 3 3 VC2 (Tank) 2
C2 TR1
455 KHz VC1 VC2 455 KHz (Beat) TR1
IF 455 KHz IFT
IF
IF
AM
3.11 1
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2 NPN
PNP R (R1) R R
R
B-E C1
B-E E B-E B-E
C1
3.12 2
3.13
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2 1 B-E 2
3.14 B-E 3.15
10 PF IF AGC
3 IF 2 IF IF
IF
AGC
IF 1
TR1 IF 1 TR2 IF 2 IF IFT
IFT 3 (Single tuned) 455 KHz
AM
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D1 IF R1,C1 C2 DC
(VR1) VR1 R2 AGC IF 1 (TR1)
AGC R (R3) TR1 TR1 AGC TR1
C3 C AGC DC C3
C4 C5 C (Neutralization) IFT TR1 TR2
180 C4 C5
C6 C TR1 C7 C TR2 C
C8 C TR2 C
AM
3.16 TR1
3.17 TR2
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IFT R (Damping) R (Q-Quality)
NPN PNP
NPN (C1) AGC
TR1 TR2 R (R4) R R4
AM
3.18 R
3.19 NPN
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AM AM (MW)
(SW) (LW)
2
-
AM
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1. AM
2.
3. AM
4. (Resonance)
5. IF AM
6. AM
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7. ( Local oscillator)
8. AM
9. ACG (Automatic gain control)
10.
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FM - FM FM
FM (Frequency Modulation)
AM AM FM
)
)
) AM
) FM
4 A, C E FM (Center Frequency) ( B D)
FM FM (VHF)
50 100
4.1 FM
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FM AM FM 88- 108 MHz ( 87.5 -108 MHz)
FM (Frequency modulator)
4.2 FM FM
FM FM AM
4.3 FM
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09312190101 FM-FM
1. (Antenna) FM AM
FM (RF) RF
2. RF (RF amplifier) AM FM 88 MHz-108 MHz FM
RF RF RF AM FM FM AM
FM FM 3. (Mixer) AM
RF OSC. IF 10.7 MHz
RF IF 10.7 MHz
4. ( Local oscillator) AM RF
IF 10.7 MHz RF 100 MHz 100 MHz+10.7 MHz = 110.7 MHz
AM FM L,C FM AM OSC. FM
AFC (Automatic frequency control)
OSC. RF IF 10.7 MHz
FM IF OSC. RF
RF IF AFC
5. (IF amplifier) AM IF AM FM AM FM
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IF AM FM IF
IF AM FM IF L,C
6. (Detector)
IF
AM R ,C IF
FM 2
DC OSC. AFC
7. (AF amplifier) AM
8. (Power supply) DC
FM (Regulator) DC FM
TR1 RF RF L1 VC1
TR1TR2 L2 VC2 (Tank) C2 C
TR2 IF 10.7 MHz TR2 IFT IF
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4.4
IF IF AM
AM 2 FM 3-5
4.5 IF
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(Limiter) IF TR3 IF
(Clip) TR3 FM AM AM IF AM 2
2 FM
FM FM IF AM
4.6 TR3
4.7
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D1 D2 R1 R2 R C3 C4
FM FM R3-C7 (Demphasis)
(Premphasis) FM (FM Multiplex Decoder) FM R4
AFC AFC (Automatic Frequency Control) FM
2
1. AFC
R1 C1 R2 AFC D1 AC C1 AFC D1
C2
4.9 AFC
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IF 10.7 MHz 10.7 MHz
DC AC AFC AFC -
C1 AFC D1
2. AFC
AFC AFC AFC
AFC FM (Tuning Meter) (Signal Meter)
AFC
R1 AFC
4.10 AFC
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IF TR2 C3 R3 D2 C4 DC
(Ceramic Filter)
(Piezo Electric)
IF FM IFT
TR1 R (RC) TR2 R (RD)
R (RB) In Out
(Muting)
TR1 TR2 IF FM TR3 TR4 TR1
C1 D1 C2 VR1 TR3 TR4
TR4 TR2 R2 R3 TR2
4.11
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IF TR1 TR3 IF TR3
TR3 TR4 TR4 TR2 R2 R3 TR2
IF VR1 SW1
FM
FM (Sound Mixer) FM - FM
FM - FM -
FM -
4.12
4.13 FM
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19 KHz 19 KHz (Pilot Signal) (Frequency Sub carrier)
FM FM
FM FM
FM TR1 T1
19 KHz 19 KHz T1
R1 C1 D1 D2
(Frequency Double) 38 KHz 38 KHz
TR2 38 KHz T2 D3
TR3 TR3 PL1 FM FM
4.14 FM
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D4 D5 D6 D7 (Demodulator)
T2 38 KHz TR2 2 180 4
2 D4 D6 R2 D5 D7 R2 R2 D4 D6 R2
R3 D5 D7
R2 R3 R2 R3 C2
C3 R2 R3
AM/FM
AM/FM 2
4.15 AM/FM 1
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4.16 AM/FM 2
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1. FM
2. 2.1 ( Front End )2.2 ( IF AMP)2.3 (Detector)2.4 AFC (Automatic frequency control)
3.
4. IF
5.
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(Polyester) (Acetate) (Ferromagnetic)
1. (Normal)
(Ferric Oxide)
2. (Chromium Oxide)
3. (Metal)
(Core) (Gap)
1. (Record Head)
2. (Playback Head)
(Erase Head)
3 1.
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2. DC
DC
3. AC DC AC
(Record Oscillator)
2 AC DC
)
) AC
) AC
) DC
)
)
5.1
5.2
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AC DC
AC DC DC
3 1 AC
AC
2 DC AC
5.3
5.4
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3 DC DC
(Forward ) (Play)
(Playback) (Record) (Rewind)
(Fast Forward)
5.5
5.6
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(Stop)
(Pause)
(Eject)
(Cue)
(Review)
(Jack)
(Mic)
(Line In) (Aux)
( Line Out) (Monitor)
EXT.SPK (Speaker) = , (Earphone) = , (Headphones) =
Line Out Monitor
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5.7
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S2 AC/DC AC S2 DC AC S2 DC
AC S2 AC
S3 (Deck) S3
S1-1 S1-7 P
(REC) R
S1-1 S1-7 P
R5 S1-2 C8 TR1
TR1 TR2 TR2 C17 VR1 S1-4 C21 R29 8 IC1 4 IC1 C30
S1-7
R19 C19 R18 C18 TR2 S1-3 TR1
S1-1 S1-7 R (Electrets Condenser
Microphone) FET R2 C2 R3 (Mic) S1-2 C8
TR1 TR1 TR2 TR2 C17 S1-4 C21 R29 8 IC1 IC1 4 IC1 C30
S1-6 R20 C20 R11 R5 S1-1
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S1-4 VR1 TR3 TR4 ALC (Automatic Record Level Control)
R35 D1 TR4 C29 C DC TR4
DC TR4 TR4 TR3 C5 TR3 TR3
TR3
R16 TR2 S1-3 TR1
TR5 S1-5 +B 4-6 L1
C33 R20 C20 S1-7 R36
1.
- +B R /
R- Rx1 4 IC1
4 IC1 DC 10 V B IC1
TR2 TR1
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- Rx1 4 IC1 4 IC1
DC 10 V B IC1 TR2 TR1
- TR1 TR2 3 IC1 IC1 IC1 IC1
2. - - -
3. - -
/
4.
- -
- TR3 ,TR4 - C33-
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5.
-
- AC
5.8 1
5.9 2
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1. (Forward) 2. (Pause) 3. (Fast Forward)
4. (Rewind)
5. (Stop)
(Deck)
- -
-
-
-
-
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-
- -
-
-
- -
-
- 2
- -
2 1.
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- -
- -
1- - 2- 3- 5 2.
- (Pulse)- (Solinoid)-
5.10 3
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5.11
SW1
SW1 SW1 +Vcc
SW1 A +Vcc A SW1 C1
A A +Vcc C1
5.11
5.12
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R1 C1 SW1 A C1 C1
C1 D1 D2 DC TR1 TR1 TR2 TR2 TR3
A C1 TR1
DC TR1 TR2 DC TR2 TR3
TR3 TR2 TR4 TR4 TR2 TR3
SW2 (Manual Switch)
D3
5.13
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2
4 2
5.14
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1.
2.
3.
4.
5.
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6.
7.
8.
9. 9.1
9.2 9.3
9.4
10. 10.1 10.2 10.3 10.4 10.5
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11.
12.
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AM-FM AM AM 535 KHz 1,605 KHz.
FCC 1 AM 10 KHz AM 107
2 1. IF (IF AMP.)
2. ( Converter)
6.1 AM 7 AM 7 IF
2 TR2 TR3 IF 3 T1 T2 T3 IF AM 455 KHz IF T1 T2 T3
455 KHz IF T3 T2 T1 IF
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AM 535 KHz 1,605 KHz
L1 L2 TM1 TM2 AM
AM
2
1. 2.
1.
2. (RF Signal generator )3. IF
IF AM1. RF. 455 KHz. MOD. 400 Hz
RF 455 KHz AM 455 KHz 400 Hz
. . RF
(Coil) ( Loop antenna).
2. . AC 2.5 VAC
.
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6.2 AC AM
3. AM AM
. AM
AC . (Variable capacitor)
IF AM 1. RF
AM IF 400 Hz 1 KHz
AC
2. RF IF
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AM
6.3 AM
3. IF T3 AC
AC IF T3 AC IF 455 KHz IF
4. IF T2 AC
5. IF T1 AC 6. IF T3 T2 T1
IF AM RF IF AM
1. AM 2. IF T3
IF T1 3. IF T3 T2 T1
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AM
RF
L1 L2 RF 2 RF C TM1 TM2
RF 2 C RF
6.4 RF 2 RF 2 RF 2
L3 TM1 TM2 TM3 L1 L2 L3
IF
1. RF IF RF 530 KHz
2. AM IF
530 KHz AM 530 KHz
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3. L2
4. L1a L1b L1a L1b AM L1a L1b L1a L1b
L1a L1b L1a L1b L1a L1b
5. L3 6. RF 1,600 KHz
7. 1,600 KHz 1,600 KHz8. C TM2
9. C TM1
10. RF2 C TM3 11. AM
AM AM
IF RF
1. AM 540 KHz 550 KHz
2.
3. L2 OSC.
4. L1a L1b L1a L1b L1a L1b
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91
09312190101 AM-FM
5. RF 2 L3 L3
6. AM
1,550 KHz 1,600 KHz7.
8. TM2 OSC.
9. TM1
10. RF 2 TM3 TM3
11. AM
FM FM
1. ( Ratio detector)
2. IF ( IF AMP)
3. ( Front end)
IF
1. RF . RF 10.7 MHz. (MOD.) (EXT. MOD)
-
8/19/2019 fm Am
97/124
92
09312190101 AM-FM
. (Atten) . RF 5
RF 2. DC 2.5 V
2
6.5
3. T4 T4 DC 1 T4 DC DC
T4 DC L2 C2 10.7 MHz 10.7 MHz
D1 D2 A B4. DC 1 2
2 0 V DC 0 V
T5 DC 2 0 V
0 V T5 C4 C5 0 V L4+L21 L4+L22
C4 C5
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8/19/2019 fm Am
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93
09312190101 AM-FM
IF
6.6 IF IF
1. RF B Q 4 T4T5 B Q3 DC A
2. IF T3 T3 DC
3. RF B Q2 IF T2 DC
T3
4. RF B Q1 IF T1 DC
5. RF B Q1 IF T4 T3 T2 T1 DC
IF FM IF IF 10.7 MHz
-
8/19/2019 fm Am
99/124
94
09312190101 AM-FM
FM 3 RF
RF 2 OSC.
1 3
AM
(L) FM
6.7
1. FM 88 MHz 1 KHz FM FM
FM FM 1
AC 10 V2. FM
88 MHz
(Bass)
(Treble)
-
8/19/2019 fm Am
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95
09312190101 AM-FM
3. OSC. L2 1 KHz L2 AC
L2
4. RF1 T1 AC
5. RF2 L1 L1
AC 6. FM 108 MHz 1 KHz
FM 7. FM
108 MHz 8.
C TM3
AC 9. C TM1
AC 10. C TM2
AC 11. FM
-
8/19/2019 fm Am
101/124
96
09312190101 AM-FM
1. AM IF
2. AM
3. FM
4. IF FM
5. FM
-
8/19/2019 fm Am
102/124
97
09312190101
1. 2. 3. 4. 5. 6. 7.
(Muliti meter)
DC AC DC
7.1
-
8/19/2019 fm Am
103/124
98
09312190101
DC DC
DC AC AC AC DC
7.2 (Range)
7.3 DC DC
-
8/19/2019 fm Am
104/124
99
09312190101
7.4 DC AC
(I = E/R)
7.5
-
8/19/2019 fm Am
105/124
100
09312190101
7.5 DC DC AC
(Set zero)
7.6
7.6
7.7
7.7
-
8/19/2019 fm Am
106/124
101
09312190101
20 /
20 / 3 60 60
1 60
500
(Period)
7.8
-
8/19/2019 fm Am
107/124
102
09312190101
7.9
(Time base)
7.10 10x (Probe)
-
8/19/2019 fm Am
108/124
103
09312190101
-
3
1. (AF)
2. (RF) RF 30 MHz AM FM RF
3. (Sweep) RF
X RF Y
7.11
-
8/19/2019 fm Am
109/124
104
09312190101
7.12
(Operating manual) (Service manual)
-
8/19/2019 fm Am
110/124
105
09312190101
1.
2.
3.
( )
AM-FM
4. AM-FM
5. AM-FM
-
8/19/2019 fm Am
111/124
-
8/19/2019 fm Am
112/124
( 09312190101)
1.
1.1
/ 1.2
/
1.3
2.
/ 10 (1,400 ) 2
3. 3.1 ( .3) 3.2 15 3.3
-
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4. : : . 4.1 /
80 / 4.2 /
.
5.
5.1 5.1.1 / 3 10
(1,400 ) (1) 182 (2) 938 (3) 280
5.1.2 / 2
-
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5.2
0911910101
0911910102
0911910103
0911910104
0911910105
0911920201
0911920202
0911920301
0911920302
0911921101
0911921501
0911921201
0911921301
0911921401
0911929900
-
-
7
21
14
35
7
28
42
35
42
42
42
42
42
3
14
-
-
91
-
14
14
28
28
105
105
105
105
105
4
402 718
1,120
280 1,400
-
8/19/2019 fm Am
115/124
0911930107
0911930108
0911930109
0911931502
0911931202
(280 )
7
14
21
35
35
14
21
-
105
105
1.
2.
3. /
/ /
-
8/19/2019 fm Am
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5.3
0911910101 (0 : 14)
091191010 2 (7 : 0)
0911910103 (21 : 0)
0911910104 (14 : 91)
0911910105 (35 : 0)
-
8/19/2019 fm Am
117/124
0911920201 - (7 : 14)
(Block Diagram) (Schematic Diagram)
(Single line Diagram) (Wiring Diagram) (Pictorial Diagram) (Flow Chart)
(Printed Circuit)
0911920202 (28 : 14)
R-L-C
R-L-C
0911920301 (42 : 28)
-
-
8/19/2019 fm Am
118/124
SCR,
TRIAC, DIAC, UJT, PUT, GTO Opto-Electronics, Thermister, Varistor, Arrester
0911920302 (35: 28)
Logic Expression, Logic Diagram (Truth Table)
-
LED, LCD, 7-Segment Dot Matrix
-
0911921101 (42: 105) -
LW, MW, SW - AM, SSB, FM FM Stereo Multiplex AM, SSB, FM FM Stereo Multiplex
RF Generator, AM/FM Sweep Marker Generator, Oscilloscope
AM, SSB, FM FM StereoMultiplex RF Generator, AM/FM Sweep MarkerGenerator, Oscilloscope (Dolby)
-
8/19/2019 fm Am
119/124
0911921501 (42: 105)
(Crossover Network)
0911921201 (42: 105) -
CCD CRT, LCD, PLASMA CCIR, PAL, Composite Video CCIR Vestigial Side Band
- Video Amp, Video IF, AGC,
TUNER,
(Test Point)
PAL-B
(Remote Control) (Test
Point)
0911921301 (42: 105)
-
8/19/2019 fm Am
120/124
TV, Monitor, Video Projector, Computer
Capstan, VDO Head, Tracking, SoundTrack Burst, Video Signal, Chroma Signal
0911921401 (42 : 105)
/
(Remote Control)
/ (Test Point)
0911929900 (3 : 4 )
-
8/19/2019 fm Am
121/124
09119 3010 7 (7 : 14)
09119 3010 8 (14 : 21)
09119 3010 9 (21 : 0)
/
0911931502 (35 : 105)
-
8/19/2019 fm Am
122/124
0911931202 (35 : 105)
MATV (Carrier)
MATV SMATV CATV RF Head-end
MATV CATV Trunk Line Amplifier
-
8/19/2019 fm Am
123/124
8
8
6
-
8/19/2019 fm Am
124/124
. . . . : ,2546
. : 2546 ,
AM-FM. : 2545 . : 2530.......... AM-FM. : 2539
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