Copyright LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
C
2008
- 42 -
Check video output
Follow procedure All source audio trouble
shooting
Y
Follow procedure analog TV video
trouble shooting
N
N
Maybe BCM3553 audio block has
problems. Replace it
Check L801 voltage level 5V
Replace it
N
Y
Check SIF signal
C801 / C806 / Q800
Replace it
N
Y
Check SIF signal
R726 / C665
Replace it
N
Y
Analog TV Audio