Casio ZD-3 Service Manual page 28

2. TOC can not be read.
TOC can not be read.
Does the LASER emit ?
Yes
Does pickup move in the
direction of sled motor ?
Yes
Does spindle motor rorate?
Yes
Is pickup lens dirty?
Yes
Is RF waveform normal ?
Yes
Is TE and FE
signals present at the output
terminals ?
Yes
* Circuit around mechamicon is
defective.
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No
No
No
No
No
No
26
* Check output level control of pickup or laser.
* Pickup or laser is defective.
* Sled motor, drive circuit or limit switch is
defective.
* Check circuit around pickup.
* Spindle motor is defective.
* Clean pickup lens.
* Check circuit around IC101.
* IC101 is defective.
* Check circuit around IC101.
* IC101 is defective.