Aiwa XR-EM30 Service Manual page 37

ELECTRICAL ADJUSTMENT-2/8
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DECK ADJUSTMENT
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1. Tape Speed Adjustment
Requirements
Measuring equipments : wow-flutter meter (frequency counter )
Test Tape: TTA-100 (3KHz)
Test point: C651(Lch),C652(Rch),GND
Adjustment point : Tape speed adjustment point (motor)
1) Connect Test point to the Wow - flutter meter.
2) Insert the test tape (TTA-100), play back center of the tape
and adjust the motor until it becomes 3,000Hz +3 / -2%.
2. Wow – Fflutter Check
Requirements
Test tape: TTA-100 (3KHz)
Test point: C651(Lch),C652(Rch),GND
1) Connect the Test point to the Wow – flutter meter.
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2) Set the indicator to JIS and the mode to W RMS (WTD)
of the Wow - flitter meter.
3) Play back thee center of the test tape (TTA-100) and check
that it is below 0.25%. .
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