LG Z15LCD1 Service Manual - Page 11
Trouble Shooting
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TROUBLE SHOOTING 1. No Power (No LED indicator) No Power Check power cord and NG Plug in power cord and interface OK Check F901, BD901 OK Check IC901 NG Replace F901 or BD901 Check the load NG Replace IC901 or Q901 OK Check T901 NG OK Check D910, D911 NG OK NG Replace F902 or F903 OK NG Check ZD903, ZD901, ZD902 IC902 Replace T901 Replace D910, D911 Check the load Replace ZD903, ZD90, ZD902 IC902 - 11 -
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- 11 -
TROUBLE SHOOTING
1.
No Power (
No LED indicator
)
No Power
Check power
cord and
NG
Plug in power cord and interface
OK
Check F901, BD901
NG
Replace F901 or BD901
OK
Check the load
Check IC901
NG
Replace IC901 or Q901
OK
Check T901
NG
Replace T901
OK
Check D910, D911
Replace D910, D911
NG
OK
Replace F902 or F903
Check the load
NG
OK
Replace ZD903, ZD90, ZD902 IC902
Check ZD903, ZD901, ZD902 IC902
NG