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DVD-S657/DV-S5860
DVD-S657/DV-S5860
16
D
C
Is Focus on OK ?
No
Check circuit between Optical
Pick Up and MT1389
No
Yes
Is any signal
on pins A B C D E F of
MT1389 turned
ON ?
Yes
Yes
Is Spindle on OK ?
No
Are signals SP+
(Pin 17 of MM1646) & SP-
(Pin 18 of MM1646)
correct ?
Check connection between
spindle driver and MM1646
Check MM1646 and its
peripheral circuit
No
No
Yes
Yes
Is DMO
(pin 37 of MT1389)
normal ?
Check MT1389 and its
peripheral circuit.
Check MT1389 and its
peripheral circuit.
Board
Ref
Name
MONO
7111
MM1646
MONO
7112
MT1389
Is Track on OK ?
No
Is signal TRO
(pin 41 of MT1389)
normal ?
Check connection between
Optical Pick Up and MM1646
Check connection between
MT1389 (pin 41) and MM1646
(pin 24)
No
Are signals T+
(Pin 16 of MM1646) & T-
(Pin 15 of MM1646)
correct ?
No
Yes
Yes
Check MM1646 and its
peripheral circuit.
No
Yes
Check cable and circuit
between DVD mechanism and
MT1389
MONO Board
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299