Samsung GT-E2652W Service Manual page 63

Level 3 Repair
8-3-16. GSM850/GSM900 Transmitter
TX Power is too Low!!
TX ON (5Level)
TCXO CLOCK CHECK?
26MHz @ OSC201
YES
PAM100 pin3 ≥ -4
dBm
(TP:R104 using
spectrum analyzer)
YES
Check the Voltage
C116 < 3.3V?
YES
PAM100 Pin14 ≥
30dBm
(TP:L105 using
spectrum analyzer)
YES
Check the RFS100
connection with PCB?
YES
Antenna
re-solder or change
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NO
Re-solder OSC201
NO
Re-solder or change
UCP200
NO
Check the UCP200 & VBAT
circuit.
NO
Resolder PAM100
NO
Resolder RFS100.
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