LG LG-D855 - Page 140

3. TROUBLE SHOOTING
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START
No
OK?
Check next step
Check TP1 Signal exist?
Check TP2 Signal exist?
Check TP3 Signal exist?
Check TP4 Signal exist?
Check Transceiver physical damage
or soldering condition
Check Antenna feeding clip soldering
Check SW1104 Soldering
Check U1102 Soldering
Check U1102 Soldering
Replace U1500
Yes
Not good
Yes
Yes
Yes
No
No
No