Table of Contents
Advertisement
15 Measurement And Adjustments
15.1 Cassette Deck Section
15.1.1 Requirements
Test tape (QZZCFM) (QZZCWAT)
Normal blank cassette tape (QZZCRA)
Digital frequency counter
Oscilloscope
Electrical voltmeter
Headphone jack output jig (Cf. Fig. 8)
15.1.2 Setting of Unit
VOLUME: MAX
15.1.3 Preparations
1.
Apply under [11. Assembling and Disassembling].
2.
Remove 4 screws from the mechanism unit to disassemble. under [11. Assembling and Disassembling].
3.
Connect the headphone jack output jig (Cf. Fig. 8) to headphone jack.
15.1.4 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
Fig. 10
Advertisement
Table of Contents
