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Flow Chart of Troubleshooting
9-66
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9-2-10. Abnormal DCS/PCS Tx Operation
1. Check
FEM Ant
2. Check
FEM output
3. Check
PAM output
4. Check
Transceiver output
TX ON(0 level)
YES
Resolder RFS100,
L103, C101
F100 PIN20
≥
0dBm
Check Antenna
Switch Control
NO
Check F100
PIN15=H, PIN14=L
PIN13=L, PIN12=L
YES
F100 PIN22
≥
-15dBm
Resolder or Change
F100
NO
YES
Resolder
C131, L113
PAM100 PIN9
≥
-15dBm
YES
NO
Resolder PAM100,
C122, R106,
R107, R108
RFT100 PIN55
≥
-15dBm
YES
NO
PIN15
PIN14
PIN12
PIN13
END
Check RFT100,
UCP300
Содержание GT-I8910
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