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No
Put disc in?
Yes
No
Disc ID is correct?
Yes
Check the RFL connection
between CON200 and MT1389.
No
Does spindle rotate?
Yes
Check the cable connection
between spindle and main PCBA.
D
Laser off
No
Proper RFL signal
on MT1389?
Yes
Proper
No
DMSO signal on
MT1389
Yes
Check the related circuit
on MT1389 RFL signal .
Check DMSO related
circuit on MT1389.
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