Samsung GT-P3100, Servise Manual

Page: 55 / 78

Level 3 Repair
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Confidential and proprietary-the contents in this service guide subject to change without prior notice.
8-48
Check C116
≤
-65dBm ?
8-3-
20.
WCDMA Band8 / GSM900 RX
WCDMA B8 / GSM900
Receiver is O.K?
Resolder or change
UCP300
END
NO
CONTINUOUS RX ON
RF INPUT : 3013CH
AMP : -50dBm
NORMAL CONDITION
catch the channel?
Check the voltage at
{C150= VBAT_RF ?}
& {C158, C159 C160 =
V_BAT?}
& {C149, C170 = 2.85V ?}
& {C145, C165 = 2.65V ?}
& {C148, C172 = 1.8V?}
& {C166, C171, C147) = 1.2V?}
Check the Voltage at
C103 = V_BAT?
Check component
soldering status OK at
F100
CHECK soldered
CN100, C116, L108, C119
Resolder or change
U101, C103
Resolder or change
F100
Resolder or change
U104
Check the freq. at C137
: 26MHz ?
Change or resolder
OSC100
Check C117,L112
≥ -65dBm ?
Resolder or change
C117,L112
NO
YES
NO
NO
YES
NO
YES
NO
YES
NO
YES
NO
Check F100 PIN 16, 17
≥ -65dBm
Resolder or change
F100
NO
YES