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NO POWER
(POWER INDICATOR OFF)
CHECK
FUSE OK?
YES
CHECK
C908 VOLTAGE?
(AC120V: 160VDC,
AC220V: 304VDC)
YES
CHECK
IC901 PIN 6
WAVEFORM
?
YES
CHECK
D941, D942,
D951, D961, D971
VOLTAGE?
YES
TROUBLE IN
Q903, Q952,
Q951, Q942, Q941
TROUBLESHOOTING GUIDE
1. NO POWER
NO
NO
NO
NO
- 13 -
TROUBLE IN FUSE
(F901)
TROUBLE IN
D900
TROUBLE IN
Q901
TROUBLE IN
D941, D942, D951,
D961, D971
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