Casio ZD-1

3-B
Does
disc motor rotate ?
Does CD mechanism
operateing normary ?
* Check CD mechanism
* Check CD turn table unit.
Is waveform at
pin 13 of IC703 llike that
shown in Fig. 21 ?
Is waveform at
pin 11 of IC703 like that
shown in Fig. 22 ?
* Check CN702 and CN703.
* Check disc motor.
* Check CN703.
Yes
Yes
Yes
Yes
No
No
No
No
* Check soldering IC701.
* Check IC701.
Figure 21
2.5V
21
B
* Check soldering IC702.
* Check IC702.
Figure 22