Aiwa CSD-MD50 Wartungshandbuch PDF herunterladen (Seite 39)

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1. AM VT Check

Settings: • Test point: TP4 (VT)

Method: Set to AM 1611kHz and check that the test

point is less than 5.6V.

2. AM IF Adjustment

Settings: • Test point: J201 (PHONES)

L772 .............................................. 450kHz

3. AM Tracking Adjustment

Settings: • Test point: J201 (PHONES)

• Adjustment location: L981

Method: Set to AM 999kHz and adjust L981 so that the

test point becomes maximum.

4. FM VT Check

Settings: • Test point: TP4 (VT)

Method: Set to FM 108.0MHz and check that the test

point is more than less than 7.3V.

R.P.E HEAD

SFR1

5. FM Tracking Check

Settings: • Test point: J201 (PHONES)

Method: Set to FM 98.0MHz and check that the test

point is less than 20dBµV.

6. DC Balance/Mono Distortion Adjustment

Settings: • Test point: TP5, TP6

• Adjustment location: L771

• Input level: 54dB

Method: Set to FM 98.0MHz and adjust L771 so that

the voltage between TP5 and TP6 becomes

0V±0.04V.

Next, check that the distortion is less than

1.3%.

7. FM Auto Stop Adjustment

Settings: • Adjustment location: VR770

• Input level: 28dBµV

Method: Set to FM 98.0MHz and adjust VR770 so that

the level 28dBµV±3dB.

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Aiwa CSD-MD50 Wartungshandbuch Seite 39