4-11
Spindle motor does not move
Yes
Yes
No
No
No
No
Yes
Check whether “RFA5V”
(+5V) voltage is normal.
Correct connection
Check the RFA5V power
supply
Check/Replace Q2
ǃ
Q3.
Check/ Replace U1.
Have no focus
1. Check
U1
182pin
FOCUS_PWM signals
2. If there are F+, F-, T+ and T-
signals output from U7.
Check/Replace the loader
Yes
Yes
No
Go
Check whether laser voltage
(2.3V for DVD & 1.9V for CD)
on Collector of Q2 and Q3
Check the FFC connection
between 24P and the loader.
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.
Trouble shooting chart
Motor no move
FOCUS_PWN waveform
Remark: Trouble shooting chart for
DVP3142(K/KM)/XX
DVP3144(K)/XX
Содержание DVP3112
Страница 37: ...6 5 6 5 Power Board Print Layout Bottom Side for DVP3140 XX DVP3142 K KM XX DVP3144 XX ...
Страница 38: ...Power Board Print Layout Bottom Side for DVP3144 K 55 6 6 6 6 ...
Страница 43: ...6 11 6 11 Main Board Print Layout Top Side for DVP3140 XX ...
Страница 44: ...6 12 6 12 Main Board Print Layout Bottom Side for DVP3140 XX ...
Страница 49: ...Main Board Print Layout Top Side for DVP3142 K KM XX DVP3144 k XX 6 17 6 17 ...
Страница 50: ...6 18 6 18 Main Board Print Layout Bottom Side for DVP3142 K KM XX DVP3144 k XX ...