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4. TROUBLE SHOOTING
START
Check TP1
If GSM over 31dBm ?
If DCS/PCS over 28dBm ?
NO
Check TP2, TP3
If TP2 over 29dBm ?
If TP3 over 25dBm ?
NO
Check PAM Block (U101)
OK ?
Refer to chapter 4.6.4
NO
Check Soldering of
PAM (U101) Block.
If problems stiil exist, replace the
PAM.
NO
Problems resolved?
NO
Change the Board
GSM/DCS/PCS
YES
Tx is Ok
Check other part
Check ANT. SW
YES
Module (FL100)
Refer to chapter 4.4
Check TXVCO (U102)
YES
Refer to chapter 4.6.1
GSM/DCS/PCS
YES
Tx is OK
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Table of Contents
Troubleshooting
