Aiwa CSD-TD31, Service Manual

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24 23
ELECTRICAL ADJUSTMENT
L801
13
2
4
3 5
24
L004
L006
TC001
L005
IC001
L007
C39
TU C.B
L003
(BAR-ANT)
3
78
J251
6
7
M1
(DECK MOTOR)
8
TAPE C.B
HP C.B
+
< TUNER SECTION >
1. AM IF Adjustment
L007 ....................................................................... 450kHz
2. AM VT Adjustment
Settings: • Test point: C39
+
• Adjustment location: L004
Method: Set to AM 1000kHz adjust L004 so that the test
point becomes 3.7V±0.02V
3. AM Tracking Adjustment
L003 ....................................................................... 600kHz
TC001, L007 ........................................................ 1400kHz
4. FM VT Adjustment
Settings: • Test point: C39 +
• Adjustment location: L006
Method: Set to FM 108MHz adjust L006 so that the test
point becomes 6.0V±0.2V
5. FM Tracking Adjustment
L005 ........................................................................ 98MHz
< TAPE SECTION >
6. Bias frequency Adjustment
L801 ............................................................. 85Hz ±500Hz
7. Tape speed Adjustment
Settings: • Test tape: TTA-100
• Test point: PHONES JACK (J251)
• Adjustment location: SFR of deck motor
Method: Play back the test tape and adjust so that the
output frequency is 3000Hz ±30Hz.
8. Azimuth Adjustment
Settings: • Test tape: TTA-320
• Test point: PHONES JACK (J251)
• Adjustment location: Azimuth adjustment
screw
Method: Play back the test tape and adjust so that the
output is maximum.