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3. RF/SERVO CIRCUIT
A.
No
Put disc in?
Yes
No
Disc ID is correct?
Yes
No
Does spindle rotate?
Yes
D
All manuals and user guides at all-guides.com
Laser off
No
Proper RFL signal
on MT1389?
Yes
Check the RFL connection
between CON200 and MT1389.
Proper
No
DMSO signal on
MT1389
Yes
Check the cable connection
between spindle and main PCBA.
Check the related circuit
on MT1389 RFL signal .
Check DMSO related
circuit on MT1389.
3-16
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