LG LX-D2560A Service Manual page 55

C
Laser turns
on when reading
disc?
YES
Put disc in tray.
YES
NO
Does SPINDLE
rotate?
YES
D
NO
DVDLD or CDLD
output properly?
YES
Collector
voltage of power
transistor is ok?
(Q405,Q406)
YES
Check cable connection
between P4405 and
pick-up head.
Proper SPINDLE
signal on ES8381.
YES
SPIN+&SPIN-
output properly?
YES
Check the cable
connection between
P4407 and MD
- 4-4 -
NO
Check the laser power circuit between
ES8381 and power
transistor. (Q405,Q406)
NO
Check the related circuit of laser
power transistor.
NO
Check the SPINDLE related
circuit on ES8381
NO
Check the SPINDLE control of motor driver
(IC404).