Trouble Shooting Chart - Philips DVP5980 Service Manual

Spindle motor does not move
Motor no move
Check the FFC connection
between 24P and the loader.
Check whether "AVCC"
(+5V) voltage is normal.
Check whether laser voltage
(2V for VCD & 2.2V for DVD)
on Collector of Q15 and Q14
1.Whether voltage on pin 112 of
U5 varies between 0 and 3.3V
(3.3V for VCD and 0V for DVD),
2.Whether peripheral components
are eroded or badly soldered.
Check/Replace the loader
Go
Yes
Yes
Yes
Yes
Have no focus
Yes
4-1
No
Correct connection
No
Check
supply
No
Check/Replace Q15 Q14.
No
Check/ Replace U5.
1. Check U5 42pin FOO signals
No
2.If there are F+, F-, T+ and T-
signals output from U6.
T rouble shooting chart
the AVCC power