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ELECTRICAL ADJUSTMENT-2/2 (EXCEPT U MODEL)
EXCEPT U MODEL
MAIN C.B
2
L104
MW
COIL
3
1
4
< TUNER SECTION >
1. AM IF Adjustment
Test point: IC101 (TA8127N) 19PIN
Adjustment location: T103
(LH, HR, HS MODEL)
T103 ....................................................................... 455kHz
(EZ, K MODEL)
T103 ....................................................................... 465kHz
2. AM Frequency Range Adjustment
Test point: IC101 (TA8127N) 19PIN
Adjustment location: T101, VC101A
(LH MODEL)
T101 ....................................................................... 517kHz
VC101A ............................................................... 1750kHz
(HR, HS, K, EZ MODEL)
T101 ....................................................................... 513kHz
VC101A ............................................................... 1635kHz
3. AM Tracking Adjustment
Test point: IC101 (TA8127N) 19PIN
Adjustment location: L104, VC101B
L104 ............................................. 600kHz waveform max.
VC101B ...................................... 1400kHz waveform max.
4. FM IF Adjustment
Test point: IC101 (TA8127N) 19PIN
Adjustment location: T102, T105
T102, T105 ........................................................... 10.7MHz
< 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
A
L103
B
D
C
L102
T102
19
11
T103
T105
VR101
5. FM Frequency Range Adjustment
Test point: IC101 (TA8127N) 19PIN
Adjustment location: L102, VC101C
(LH, HR, HS MODEL)
L102 ........................................................................ 87MHz
VC101C ................................................................. 109MHz
(K, EZ MODEL)
L102 ..................................................................... 87.3MHz
VC101C .............................................................. 108.3MHz
6. FM Tracking Adjustment
Test point: IC101 (TA8127N) 19PIN
Adjustment location: L103, VC101D
L103 .............................................. 88MHz waveform max.
VC101D ...................................... 108MHz waveform max.
7. VCO Frequency Adjustment
Test point: IC101 (TA8127N) 11PIN
Adjustment location: VR101
VR101 ........................................................... 76±0.05MHz
67
test point
T351
6
7
-22-
1
CASETTE C.B
CN301
4
VR351
MAIN C.B
VR501
6
5
7
test
6
~
point
test
7
point
HP801
8
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