Trouble Shooting Chart - Philips DVP3140 Service Manual

Spindle motor does not move
Motor no move
Check the FFC connection
between 24P and the loader.
Check whether "RFA5V"
(+5V) voltage is normal.
Check whether laser voltage
(2.3V for DVD & 1.9V for CD)
on Collector of Q2 and Q3
1.Whether voltage on pin 129 of U1
varies between 0 and 3.3V (3.3V for
CD and 0V for DVD),
2.Whether peripheral components
are eroded or badly soldered.
Have no focus
Check/Replace the loader
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Go
Yes
Yes
Yes
Yes
Yes
4-1
Remark: Trouble shooting chart for
No
Correct connection
No Check the RFA5V power
supply
No
Check/Replace Q2 Q3.
No
Check/ Replace U1.
1. Check
No
FOCUS_PWM signals
2.If there are F+, F-, T+ and T-
signals output from U7.
FOCUS_PWN waveform

Trouble shooting chart

DVP3140/XX
U1 182pin