LG GM310 Service Manual page 111

5. Trouble shooting
5.18.4 Checking WCDMA TX part(WCDMA2100/900)
Checking Flow Checking Flow
Setup Test Equipment Setup Test Equipment
Cell Power = Cell Power =
UL CL PWR Crtl Parameter=All up bits
Is the level
of TP7~8 or TP13 same to Table1 ?
YES YES
Check
TP4 or TP11 level(0~5dBm)?
TP4 or TP11 level>=TP5-1.5dBm?
YES YES
Check TP3 or TP10
TP3 or TP10 level 25.5dBm over?
Check TP2 or TP9
TP2 or TP9 level 24dBm over?
Check TP1 Check TP1
TP3 level 22dBm over? TP3 level 22dBm over?
YES YES
WCDMA Tx Path is OK WCDMA Tx Path is OK
LGE Internal Use Only
- 60dBm 60dBm
NO NO
NO NO
NO NO
NO NO
- 112 -
GM310f service manual
TP6 : check VBAT line
TP7~8 or TP13
:Check U103
Check U1004 or
Check FL1003 or FL1006
Check U1007
Check FL1004 or FL1007
Check FL501(FEM) Check FL501(FEM)
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