Sony AVD-K150B Service Manual page 37

D
Yes
No
Focus ON OK?
Yes
No
Track On OK?
Yes
No
Disc is play?
Yes
E
AVD-K150B/K150E/K150G/K150N/K150R
Proper
No
signals on A, B, C,
D of MT1336
Yes
No
Proper FEO signal
on MT1336?
Yes
Check FEO connection
between MT1336 and MT1379
No
Proper FEO signal
on MT1336?
Yes
No
Properly TRSO signal
on MT1379?
Yes
No
T+ & T- output
properly?
Yes
Check cable connection on
pick-up head.
Check RF signal waveform.
Check connections between
MT1336 and pick-up head.
Check the related circuit
on MT1336 FEO sugnal .
Check the related
circuit on MT1336
Check the TRSO connection
on MT1379 and motor dirver.
Check the tracking control
amp circuit on motor driver.
37