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4. TROUBLE SHOOTING
LGE Internal Use Only
START
Check TP1
If GSM over 31 dBm?
If DCS/PCS over 28dBm?
No
Check TP2, TP3
If TP2 over 29dBm?
If TP3 over 25dBm?
No
Check PAM Block OK?
Refer to chapter 3.6.3
No
Check Soldering of PAM (U101)
If problem still exist,
replace the PAM
Problem resolved ?
No
Change the Board
- 108 -
Yes
GSM/DCS/PCS Tx is OK
Check other part
Check Front-End
Yes
Module
Refer to chapter 3.4
Yes
Check the RTR6275
Yes
GSM/DCS/PCS Tx is OK
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Only for training and service purposes
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Table of Contents
Troubleshooting
