Philips DVP721VR - Page 53

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D
E
Normal TEO Signal on
MT1389?
Check the related
circuit on MT1389
Track On OK?
Properly TRSO signal
on MT1389?
T+ & T- output
properly?
Check the TRSO
connection on MT1389
and motor dirver.
Check the tracking control
amp circuit on motor
driver.
Check cable connection on
pick-up head.
Disc is play ?
Check RFO & RFLVL signal waveform.
Focus ON OK?
Proper signals on
A,B,C,D of MT1389
Check connections between
MT1389 and pick-up head.
Check FEO signal
on MT1389
Check FOSO signal on MT1389
Check the FOSO connection on
MT1389 and motor driver.
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
NO
NO