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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 U3
varies 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
All manuals and user guides at all-guides.com
4-1
No
No
Correct connection
No
Check
the
AVCC
supply
No
Check/Replace Q8、Q9.
No
Check/ Replace U3.
1.
Check U3 42pin FOO signals
2.If there are F+, F-, T+ and T-
signals output from U2.
Trouble shooting chart
power
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