LG KG920 Service Manual page 99

4. TROUBLE SHOOTING
CHECKING FLOW
Backlight will work properly.
START
NO
Is the level at
Pin2 of Q301 High?
YES
NO
Are all LEDs
Working?
YES
Figure 4-44.
- 100 -
Check U101(Main board)
Check the soldering
each R and LED
R302~R303
LD301~LD302
NO
Replace or resoldering
component