Sanyo HV-DX3E Service Manual page 11

TROUBLESHOOTING
F. DRUM Motor stops
DRUM Motor stops.
Is 14V voltage obtained at P501
pin#8?
YES
Is DRUM PWM fit to IC 501
pin#76?
YES
Is 2.6V voltage obtained at
P501 pin#12?
YES
Check Capstan Motor and
DRUM Motor.
G. CAPSTAN doesnÕt rotate
CAPSTAN doesnÕt rotate.
Is EVER 14V voltage obtained
at P501 pin#2?
YES
Is Capstan PWM fit to
IC501 pin#77?
YES
Is 3.2V voltage obtained
at P501 pin#5?
YES
Is 2.7V voltage obtained
at P501 pin#9?
Check P501 Connector and
Capstan Motor.
NO
Check EVER 14V
(Q850).
Check DRUM PG/FG
NO
(IC 501 pin# 90).
NO
Check R534,R535,C519,C520.
NO
Check EVER 14V.
(Q850)
Check Capstan FG
NO
(IC 501 pin# 87).
Check
NO
R541,R540,R539,R538,C518
NO
Check R537,R536,C521
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