LG KG271 - Page 66

4. TROUBLE SHOOTING
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START
Backlight is OK?
Change PCB
YES
NG
Check Operation
After LCD changes
NO
Check Control
Signal and Power
Including soldering status
C221=2.8V
Control Signal=
Refer to next page
NG
Replace component
Or change PCB
Change PCB
OK
Check soldering
status of CN200
OK
Change LCD
OK
NG
Replace CN200
Checking Flow