LG KU580, Руководство по обслуживанию

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Only for training and service purposes
4. TROUBLE SHOOTING
To verify that the phone fulfils requirments on maximum output power.
Check 1
About 22~23dBm?
RF TX Level is OK
Check next stage
Check output power at
the SW100 with antenna
Cable.
Refer to Figure 4-33-1
No
Yes
Set the FDD Test of the Agillent 8960
Set the Maximum Power
Yes
The SW100 has any problem.
Change the SW100
Check 2
About 15dBm?
Check the power at
the C112 with probe.
Refer to Figure 4-33-2
No
Yes
The C112 will be broken.
Change the C112
Check 3
About 19dBm?
Check the power at
the C113.Ant with probe.
Refer to Figure 4-33-3
No
Yes
The C113 has any problem.
Change the C113
Check 4
About 19dBm?
Check the power at
the IS100.2 with probe.
Refer to Figure 4-33-4
No
Yes
The IS100 has any problem.
Change the IS100
Check 5
About 17dBm?
Check the power at
the IS100.3.I with probe.
Refer to Figure 4-33-5
No
Yes
The U100 has any problem.
You have to check PAM block.
Check 6
About -6dBm?
Check the power at
the R110 with probe.
Refer to Figure 4-33-6
The U104 will be not operated.
Change the board
No
TP Command
MODE=4
WTXC=10700, 1,890,903,542,557
SYCT=10700
TFTI=10700