LG L1918S, Service Manual, Page: 21 / 44

21
5. POWER
No Power
(Power Indicator Off)
Check AC line
volt 110V or 220V
Check the
voltage of C905(+)
Check start voltage
for the pin3 of
IC901
The auxiliary voltage
(IC901 pin 7) is
between 10V-16V
jumping
Check AC line
Check F901, BD901
Check R906, R907, IC901
Check D902,D902,C907
1) Check IC901,T901
2) Check Q903, ZD903,
ZD904
3) Check IC902, IC903
NO
YES
YES
NO
YES
NO
YES
NO