LG LX-D2560A Service Manual page 56

D
NO
Focus On OK?
YES
NO
Track On OK?
YES
NO
Disc play?
E
Proper signal on
A,B,C,D from MD?
YES
Proper FOO signal
on IC401?
YES
Check cable connection
between P4405 and MD.
Proper TRO signal
on IC401?
YES
T+&T-output
properly?
YES
Check cable connection
on pick-up head.
Check RF signal waveform.
- 4-5 -
NO
Check the connections between
P4405 and pick-up head.
NO
Check the related circuit of ES8381
FOCUS signal.
NO
Check the related circuit between
IC401 and ES8381
NO
Check the Tracking control
on motor driver (IC401).