LG KP260 - Page 74

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
- 75 -
Is the level Period at TP1
Low Duty(70%)?
START
Is the level Period at TP1
High Duty(30%)?
NO
Check U103
YES
Are all LEDs
Working?
NO
YES
Check the soldering
each LED
Backlight will work properly.
NO
Replace or resolder
component
NO
Check U103
YES
Are all LEDs off?
YES
NO
Is LD200 off? Is LD201 off?
NO
Resolder TP1 Resolder TP2
YES
YES
CHECKING FLOW