LG LG-D855 - Page 72

3. TROUBLE SHOOTING
- 72 -
Copyright © 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
START
No
Check next step
Yes
Check TP1 Signal exist?
Check SW1101 Soldering
Check FL1755 Soldering
Replace U1500
No
Not good
OK?
Check TP2 Signal exist?
Yes
Check Transceiver physical damage
or soldering condition