LG KF750 Service Manual page 161

4. TROUBLE SHOOTING
To verify that the phone fulfils requirments on maximum output power.
Check output power at
the SW100 with antenna
Cable.
Refer to Figure 4-33-1
Check the power at
the C107 with probe.
Refer to Figure 4-33-2
Check the power at
the C226 with probe.
Refer to Figure 4-33-3
Check the power at
the IS200 Out with probe.
Refer to Figure 4-33-4
Check the power at
the IS200 In with probe.
Refer to Figure 4-33-5
Check the power at
the C207 with probe.
Refer to Figure 4-33-6
LGE Internal Use Only
Set the FDD Test of the Agillent 8960
Set the Maximum Power
Check 1
About 22~23dBm?
No
Check 2
About 15dBm?
No
Check 3
About 19dBm?
No
Check 4
About 19dBm?
No
Check 5
About 17dBm?
No
Check 6
About -6dBm?
No
The U203 will be not operated.
Change the board
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TP Command
MODE=4
WTXC=10700, 1,890,903,542,557
TFTI=10700
Yes
RF TX Level is OK
Check next stage
Yes
The SW100 has any problem.
Change the SW100
Yes
The U100 has any problem.
Change the U100
Yes
The FL202 has any problem.
Change the FL202
Yes
The IS200 has any problem.
Change the IS200
Yes
The U200 has any problem.
You have to check PAM block.
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