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ELECTRICAL ADJUSTMENT-1/2 (U MODEL)
U MODEL
MAIN C.B
2
L104
MW
COIL
3
1
< TUNER SECTION >
1. AM IF Adjustment
Test point: IC101 (TA2111N) 18PIN
Adjustment location: T103
T103 ....................................................................... 455kHz
2. AM Frequency Range Adjustment
Test point: IC101 (TA2111N) 18PIN
Adjustment location: T101, VC101A
T101 ....................................................................... 517kHz
VC101A ............................................................... 1750kHz
3. AM Tracking Adjustment
Test point: IC101 (TA2111N) 18PIN
Adjustment location: L104, VC101B
L104 ............................................. 600kHz waveform max.
VC101B ...................................... 1400kHz waveform max.
< DECK SECTION >
6. AC BIAS Frequency Adjustment
Test point: CN301 4PIN
Adjustment location: T351
T351 ................................................................ 60±0.5MHz
7. AC BIAS Level Adjustment
Test point: CN301 4PIN
Adjustment location: VR351
VR351 ................................................................... 14±0.5V
8. Normal Tape Speed Adjustment
Test point: HP801 (Headphone Jack)
Test Tape: B-111LNA
Adjustment location: VR501
VR501 .................................................................... 3000Hz
T101
L103
A
B
D
C
L102
T103
18
4. FM Frequency Range Adjustment
Test point: IC101 (TA2111N) 18PIN
Adjustment location: L102, VC101C
L102 ........................................................................ 87MHz
VC101C ................................................................. 109MHz
5. FM Tracking Adjustment
Test point: IC101 (TA2111N) 18PIN
Adjustment location: L103, VC101D
L103 .............................................. 88MHz waveform max.
VC101D ...................................... 108MHz waveform max.
67
test point
T351
6
7
-21-
5
4
test
point
CASETTE C.B
CN301
4
VR351
MAIN C.B
VR501
HP801
8
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