Zenith XBV323 Series Service Manual page 15

VCR ELECTRICAL TROUBLESHOOTING GUIDE
(8) No 8V(TO DVD)
NO 8V.
NO
Is Vcc(13V) supplied to
(+) terminal in D114?
YES
NO
Is Vcc(12V) supplied
to IC151 Pin1?
YES
NO
Is Q162 Base "H"?
YES
Check or Replace
IC151, R170, C154.
Check or Replace
D110.
Check or Replace
D114.
Check the Power
Control.
3-6
(9) No 3.3V(TO DVD)
NO 3.3V.
NO
Is Vcc(4V) supplied
to IC152 Pin1?
YES
NO
Is the Q162 Base
"H"?
YES
Check or Replace
IC152, R156, C153.
Check or Replace
D111.
Check the Power
Control.