Zenith XBV323 Series, Service Manual

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NO -27VA.
Check or Replace
D108.
(7) No -27VA
VCR ELECTRICAL TROUBLESHOOTING GUIDE
3-5
NO 5V.
5.3VA Line Check.
Is 5.3VA put into
Q160 Emitter?
Is about 5V put into
Q160 Base?
Is Q162 Base “H”?
NO
NO
NO
Check the Power
Control.
Check or Replace Q162,
R157, R158, R159, D121.
YES
YES
YES
Check or Replace
Q162/Q160
(4) No 5V (TO DVD)
No 33V.
Check the Power
Control.
Is Q162 Base “H”?
Check or Replace
Q161, R154, R155.
NO
YES
(5) No 33V (TUNER)
No REG 12V.
Check or Replace
D110. Is 13V put into
Q156 Collector?
Is 13V put into
R153 Base?
NO
Check 33V Line.
NO
YES
Check or Replace Q156,
ZD103, R153, C151.
YES
(6) No REG 12V