LG L602i Service Manual page 90

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 (U1003)
OK ?
Refer to chapter 3.6.4
NO
Check Soldering of
PAM (U1003) Block.
If problems stiil exist, replace the
PAM.
NO
Problems resolved?
NO
Change the Board
4. TROUBLE SHOOTING
GSM/DCS/PCS
YES
Tx is Ok
Check other part
Check ANT. SW
YES
Module (FL1000)
Refer to chapter 3.4
Check TXVCO (X1002)
YES
Refer to chapter 3.6.1
GSM/DCS/PCS
YES
Tx is OK
- 91 -