Read LG 22LS2100 (CHASSIS:LD93Q / LP93Q) Service Manual online
- 12 -
TROUBLE SHOOTING
1. NO POWER-Main PCBA
Is Adapter
Output VOLTAGE 19.4V
through of JK700?
NO POWER
Is 3.3V at C771?
Check waveform of X600
YES
NO
YES
NO
YES
check open or short at Line.
or change Adapter.
check the Lines of IC701,
If there is any problem at Line,
Change IC701
NO
Check Line short or open between
IC600 and X600,
Change IC600 or change X600
1
2
4
Is 5V at C716?
is 1.1V at C737?
3
YES
check the Lines of IC704,IC706
If there is any problem at Line,
Change IC704,IC706.
NO
Insert F/W
is 3.3V at 1pin of P200?
when push power key,
Is 0v at 4pin of P200?
Change control
Or check Line short or open of P200
5
is there any waver at 3pin of P200,
when use remote controller?
6
NO
YES
change IR board
Or check Line short or open of P200
NO
4
X600
Click on the first or last page to see other 22LS2100 (CHASSIS:LD93Q / LP93Q) service manuals if exist.