LG KT520 Service Manual page 148

To verify that the phone fulfils requirements on maximum output power.
Check output power at
the SW101 with antenna
Cable.
Refer to Figure 4-33-1
Check the power at
the C114 with probe.
Refer to Figure 4-33-2
Check the power at
the C115.Ant with probe.
Refer to Figure 4-33-3
Check the power at
the IS201.2 with probe.
Refer to Figure 4-33-4
Check the power at
the IS201.3.I with probe.
Refer to Figure 4-33-5
Check the power at
the C208 with probe.
Refer to Figure 4-33-6
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Only for training and service purposes
Set the FDD Test of the Agilent 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 U204 will be not operated.
Change the board
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4. TROUBLE SHOOTING
TP Command
MODE=4
WTXC=10700, 1,890,903,542,557
SYCT=10700
TFTI=10700
Yes
RF TX Level is OK
Check next stage
Yes
The SW101 has any problem.
Change the SW101
Yes
The C114 will be broken.
Change the C114
Yes
The C115 has any problem.
Change the C115
Yes
The IS201 has any problem.
Change the IS201
Yes
The U201 has any problem.
You have to check PAM block.
LGE Internal Use Only