Aiwa HV-MC90 Service Manual page 37

ELECTRICAL TROUBLESHOOTING -3/13
7. Power Circuit(SMPS)
(4) No 5V.
Is 5.3VA put into the Q153/Q155
collector?
Is the Q156 Base "H"?
Is about 5.5V put into the
Q153/Q155 Base?
Check or Replace the Q153/Q155.
No 5V.
YES
YES
YES
YES
NO
Check the Power Control.
NO
Does the 13VA Line work normally?
1 Check the 13VA Line.
1
2 Check the Peripheral
2
2 Circuitry of ZD153.
-37-
NO