Samsung GT-S5230 - DCS Receiver

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Flow Chart of Troubleshooting
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9-17
9-11.
DCS Receiver
Yes
No
Resolder L109, L113, L110,
L112
U100
pin
13
≥
-70
dBm
pin
5,6
≥
-70
dBm
Yes
Resolder
U100
Yes
No
Check ANT Switch
control circuit
Check
U100
pin
10,
pin
16 = L
No
Yes
No
Resolder U100
,
L105, C116
Yes
U100 Pin
17
≥
-
65
dBm
RX ON
Cell Power
:-60
dBm
①
U100
VCV1, VC2
≥
-68
dBm
②
③
Check UCP200
END