Aiwa HV-MC90 Service Manual page 36

ELECTRICAL TROUBLESHOOTING -2/13
7. Power Circuit(SMPS)
(2) No 13VA.
Does 5.3VA work normally?
Is the D109 normal?
Check 13VA/12VA Line of the
Main PCB short.
(3) No 12VA.
Does 13VA work normally?
Is the D151, D153 normal?
Check or Replace the Motor Vcc.
No 13VA.
YES
YES
YES
No 12VA.
YES
YES
YES
NO
Check whether 5.3VA is out of order.
NO
Replace the D109.
NO
Check whether 13VA is out of order.
NO
Replace the D151, 153.
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