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Set the Phone Rx is ON
Check BIAS over
2.1 V ?
Yes
Check TP1
Signal exist ?
Yes
Check TP2
Signal exist ?
Yes
Check TP3
Signal exist ?
Yes
Check TP4
Signal exist ?
Yes
Change the board
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Only for training and service purposes
4. TROUBLE SHOOTING
No
Check bias block soldering
No
Check RF Switch (M/S)
No
Check ASM Block
Refer 1.4
No
Check Duplexer
No
Check RTR6285 and
Rx SAW filter
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LGE Internal Use Only
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Table of Contents
Troubleshooting
