Trouble Shooting Chart - Philips DVP5960 Service Manual

Spindle motor does not move
Motor no move
Go
Check the FFC connection
between 24P and the loader.
Yes
Check whether "AVCC"
(+5V) voltage is normal.
Yes
Check whether laser voltage
(2V for VCD & 2.2V for DVD)
on Collector of Q8 and Q9
Yes
1. Whether voltage on pin 44 of
U4varies between 0 and 3.3V
(3.3V for VCD and 0V for DVD),
2.Whether peripheral components
are eroded or badly soldered.
Yes
Have no to focus
Yes
Check/Replace the loader
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4-1
No
No
No
No

Trouble shooting chart

Correct connection
Check the AVCC
supply
Check/Replace Q8 Q9.
No
Check/ Replace U4.
1. Check U4 42pin FOO signals
2. If there are F+, F-, T+ and T-
signals output from U5.
power