Sony HCD-ZX50MD Service Manual page 40

MD SECTION
6-1. PARTS REPLACEMENT AND ADJUSTMENT
If malfunctions caused by Optical pick-up such as sound skipping are suspected, follow the following check.
Check before replacement
40
Start
6-6-2.
Laser Power Check
(See page 43)
OK
6-6-3.
Iop Compare
(See page 43)
OK
6-6-4.
Auto Check
(See page 44)
OK
Other faults are suspected.
Check the threading mechanism, etc.
NG
NG
NG
Replace Optical pick-up or MDM-7B