4-1
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
C
heck 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
Summary of Contents for DivX DVP3146K
Page 27: ...6 6 6 6 Power Board Print Layout Bottom Side for DVP3126 K XX ...
Page 29: ...6 8 6 8 Power Board Print Layout Bottom Side for DVP3146 K XX DVP3148K XX ...
Page 34: ...6 13 6 13 Main Board Print Layout Top Side for DVP3126 K XX DVP3146 K XX DVP3148K XX ...
Page 35: ...6 14 6 14 Main Board Print Layout Bottom Side for DVP3126 K XX DVP3146 K XX DVP3148K XX ...
Page 40: ...6 19 6 19 Main Board Print Layout Top Side for DVP3146K 93 ...
Page 41: ...6 20 6 20 Main Board Print Layout Bottom Side for DVP3146K 93 ...