Samsung GT-S5260 - Vehicle and Aircraft Safety

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Level
3
Repair
8-35
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Check the Voltage
C113,C155
<3.3
V?
8-3-14.
GSM
850/
GSM900 Transmitter
TX Power is too Low!!
TX ON
(5
Level)
CLOCK CHECK?
26
MHz
@
OSC200
NO
Re-
solder OSC200
YES
PAM100 pin
28
≥
-4
dBm
(
R102 using spectrum
analyzer)
NO
Re-
solder or change
UCP200
YES
NO
Check the UCP200
&
VBAT
circuit.
YES
NO
Resolder PAM100
P
AM
100
Pin
11
≥
30
dBm
(
L103 using spectrum
analyzer)
YES
Resolder RFS100.
Check the RFS100
connection with PCB?
YES
Antenna change
NO