DVD-S30
18
DVD-S30
A
Does sled
automatically move
to inside when it is
outside ?
Is signal
STBY (pin 28 of AM5888)
high level ?
Check the STBY circuit.
Is signal
FMSO (pin 23 of AM5888)
more than 1.4V ?
Check the FMSO circuit.
Are signals
SP+ (pin 2 of 1201)
& SP- (pin 1 of 1201)
correct ?
Check AM5888 and peripheral circuit.
Check the copper trace or cable
connected to the DVD
mechanism.
Does Optical
Pick Up move to find
a disc ?
Does signal
FOSO (pin1 of AM5888)
have any signal ?
Check the signal from MT1389 to AM5888.
It is possible that MT1389 is not working.
Are signals
F+ (pin 14 of AM5888)
& F- (pin 13 of AM5888)
correct ?
Check AM5888 and peripheral circuit.
Check the cable and circuit
between the DVD mechanism
and AM5888.
Are signal
LDO1 (pin 23 of MT1389)
& LDO2 (pin 22 of T1389)
correct ?
Check AM5888 and peripheral circuit.
Is voltage
of LDO_AV33 OK ?
Check peripheral circuit of two transistor
(Ref 7204 & 7205)
Check connection circuit of the DVD
mechanism.
Optical Pick Up can be damaged.
No
No
No
No
Yes
Yes
Yes
Yes
No
No
Yes
Yes
No
No
No
No
Yes
Yes
Yes
Is a disc loaded ?
Laser off
No
B
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
