AIWA HS-RX500
Instrukcja Serwisowa

ADJUSTMENT
A MAIN C.B

SFR 401

8

VOLUME

3 4 6
TC203 TP2 (FM ANT GND) TP3(FM ANT IN) TC202 TC251

TP1 (VT) TP5 (VCO) TP4 (TU OUT)

VR101

L253 J101

8

SFR 251

PHONES

2

5

7

7

1
L251 (BAR-ANT)

5

<RADIO SECTION>
1. AM IF Adjustment L253 ...................................................................... 450 kHz 2. FM IF Adjustment TC202 .................................................................. 10.7 MHz 3. AM VT Check Settings : � Test point : TP1 (VT) Method : Set to AM 530 kHz and check that the test point is 1.2 V ± 0.4 V. Then set to AM 1710 kHz and check that the test point is less than 10.0 V. 4. FM VT Adjustment Settings : � Test point : TP1 (VT) Method : Set to FM 87.5 MHz, and check that the test point is 3.1 V ± 0.5 V. Then set to FM 108.1 MHz, and check that the test point is less than 11.0V. 5. AM Tracking Adjustment L251 ...................................................................... 630 kHz TC251 .................................................................. 1440 kHz 6. FM Tracking Adjustment TC203 .................................................................. 87.5 MHz 7. FM VCO Adjustment Settings : � Adjustment location : SFR251 � Test point : TP5 (VCO) Method : Adjust SFR251 such that the frequency counter indicates 19 kHz ± 100 Hz.

<TAPE PLAYER SECTION>
8. Tape Speed Adjustment Settings : � Test tape : TTA�100 � Test point : Phones Jack (J101) � Adjustment location : SFR401 � Volume : MAX � S-Bass : OFF � Tape selector : Normal Method : Play back the test tape and adjust SFR401 for 3015 Hz ± 10 Hz (FWD) and 3015 Hz ± 40 Hz (REV). Then confirm WOW is less than 0.50%.

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