Samsung GT-S8500 - Page 52

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Level
3
Repair
8-23
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Check C118
≤
-65
dBm
?
8-3-13.
GSM
850
RX
CONTINUOUS RX ON
RF INPUT
: 190
CH
AMP
:-50
dBm
NORMAL CONDITION
catch the channel?
U302
{
C314
=2.2V?}
&{
C319
=1.3V?}
&{
C360
=2.3V?}
&{
C321
=1.4V?}
Check the Voltage at
C120
= 2.85V ?
Check component
soldering status OK at
C125, L104, L105
?
CHECK soldered
CN100, C118, L102
U302, C341, C120
resolder or change
C125, L104, L105
resolder or change
U302
resolder or change
Check the freq. at C300
:19.2
MHz
?
U300
change or resolder
Check both pad of C125
≥
-65
dBm
?
F100
resolder or change
GSM850 Receiver is O.K?
U302
resolder or change
END
NO
YES
NO
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES