LG Flatron W1941S - Troubleshooting: Power Supply

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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,
R929,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
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