Casio CD-350S Service Manual page 7

Tape Speed Adjustment (Figures 3 and 4)
Step
1 Play the test tape
(MTT-111N)
Setting
SET
Headphone Jack
Screw
Adjust
Motor screw Frequency counter reading should be
(Figure 4) 3000 Hz (2940 ~ 3060).
Frequency Counter
Figure 3
Figure 4
— 5 —
Result
3000
Motor