Panasonic SA-PM28E, Service Manual

Page: 79 / 169

- VOLUME: MAX
12.2.3. Preparations
1. Apply [8.1 Checking Main and Transformer P.C.B, Deck P.C.B and
Deck Mechanism P.C.B.] under [8. Disassembly and Main
Component Replacement Procedures].
2. Remove 4 screws from the mechanism unit to disassemble. (Refer
to [8.2. Procedure for Replacing Cassette Holder (Step 1)] under
[8. Disassembly and Main Component Replacement Procedures].
3. Connect the headphone jack output jig (Cf. Fig. 8) to headphone
jack.
Fig. 8
Fig. 9
12.2.4. Tape Speed Adjustment
- Normal speed adjustment (only during forward playback)
(Product reference value: 3,000±90Hz)
1. Connect a frequency indicator. (Cf. Fig. 12)
2. Playback the middle portion of the test tape (QZZCWAT).
3. Adjust the motor screw so that the following output level is
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