Philips DVP3350V/01 Service Manual page 62

DVD ELECTRICAL TROUBLESHOOTING GUIDE
D
Focus on OK?
YES
Track on OK?
YES
Disc is play?
YES
E
Proper
NO
signals on A, B, C, D
of ZR36966
Proper
signal on A, B, C, D
of ZR36966
Check FOCUS_S
signal on ZR36966.
Normal
NO
TE signal of
ZR36966
Proper
TRACK_S signal
of ZR36966?
TACT+ &
TACT- output
properly?
Check cable connection
on pick-up head.
NO
Check RF signal waveform.
3-65
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
Check connection between
ZR36966 and pick-up.
Check the FOCUS_S
connection on ZR36966
and motor driver.
Check the related
circuit on ZR36966.
Check connection
TRACK_S between
ZR36966 and AM5890S.
Check the tracking control
amp circuit on motor driver.