Table of Contents
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D
YE S
NO
Focus ON OK?
YES
NO
Track On OK?
YES
NO
Disc is play ?
YES
E
NO
Proper signals on
A,B,C,D of MT1389
YES
NO
Check FEO signal
on MT1389
YES
Check FOSO signal on MT1389
NO
Normal TEO Signal on
MT1389?
YES
NO
Properly TRSO signal
on MT1389?
YES
NO
T+ & T- output
properly?
YES
Check cable connection on
pick-up head.
Check RFO & RFLVL signal waveform.
3-9
Check connections between
MT1389 and pick-up head.
Check the FOSO connection on
MT1389 and motor driver.
Check the related
circuit on MT1389
Check the TRSO
connection on MT1389
and motor dirver.
Check the tracking control
amp circuit on motor
driver.
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