Sony DVP-FX705 Service Manual page 83

B.
D
Yes
No
Focus ON OK?
Yes
Track On OK?
Yes
No
Disc is play?
Yes
E
Proper
No
signals on A, B, C,
D of MT1389
Yes
No
Proper FO+&FO-signal
on MT1389?
Yes
Check IC501 IC
No
Proper FOSO signal
on MT1389?
Yes
No
Properly TRSO signal
on MT1389?
Yes
No
TR+&TR-output
properly?
Yes
Check cable connection on
pick-up head.
Check RF signal waveform.
9-7
Check connections between
MT1389 and pick-up head.
Check the related circuit
on MT1389 FO+&FO-sugnal
Check the related
circuit on MT1389
Check the TRSO connection
on MT1389 and motor dirver.
Check the tracking control
amp circuit on motor driver.