21
5. POWER
No Power
(Power Indicator Off)
Check AC line
volt
Check the
voltage of C905(+)
Check start voltage
for the pin1 of
IC901
Check IC901 pin 7
Vcc is 13v?
Check AC line
Check F901, BD901
Check D905, R934,
R928,IC901
Check D902,C907
Check IC901, T901,D907,D908,ZD903,ZD902,ZD901,IC902,IC903
NO
YES
YES
NO
YES
NO
YES
NO
Check IC901 PIN6
output is PWM?
Check D901,Q903,ZD904
NO
