3. TROUBLE SHOOTING
- 125 -
Copyright © 2013 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
START
No
OK?
Check next step
Check TP1/2/3
Signal is over 23dBm?
Check TP4 Signal is over 3.5dBm
Check TP5/6/7 Signal is over 3.5dBm
Check TP8 Signal is over 3.5dBm
Check Transceiver physical damage
or soldering condition
Check component above RF signal path
Check FL1015 Soldering
Check U1000 Soldering
Check FL1005 Soldering
Replace U2002
Yes
Not good
Yes
Yes
Yes
No
No
No