Measurement And Adjustments; Tuner/Cd Sections; Cassette Deck Section - Panasonic SA-PM31P Service Manual

13 Measurement And Adjustments

13.1. Tuner/CD Sections

No adjustment required.

13.2. Cassette Deck Section

13.2.1. Requirements
· Test tape (QZZCFM) (QZZCWAT)
· Normal blank cassette tape (QZZCRA)
· Frequency indicator
· Oscilloscope
· Electrical voltmeter
· Headphone jack output jig (Cf. Fig. 8)
13.2.2. Setting of Unit
· VOLUME: MAX
13.2.3. Preparations
1. Apply [9. Assembling and Disassembling].
2. Remove 4 screws from the mechanism unit to disassemble. [9. Assembling and Disassembling].
3. Connect the headphone jack output jig (Cf. Fig. 8) to headphone jack.
13.2.4. 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 produced. (Cf. Fig. 10)
Adjustment Range: 3,000 ± 90Hz (a constant speed)
Fig. 8
Fig. 9
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SA-PM31P / SA-PM31PC