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20HIZ20 (CHASSIS:LP69F) - LG TV Service Manual (repair manual). Page 13

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- 13 -
TROUBLESHOOTING
No power 
(LED indicator off)
Check short of main B/D 
or Change Lips.
Change Q903.
Change LED Assy.
Check 15V or 5V 
of Lips.
Check Input/Output
of Q903.
Check LED Assy.
Check S/W update, connector P281
Fail
Fail
Fail
Pass
Pass
Pass
:[A]Process
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