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Level 3 Repair
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Confidential and proprietary-the contents in this service guide subject to change without prior notice.
8-42
Check C116
≤
-65dBm ?
8-3-17. WCDMA Band1 RX
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 C126, L110, L113
≥
-65dBm ?
Resolder or change
C126, L110, L113
WCDMA B1 Receiver is O.K?
Resolder or change
UCP300
END
NO
YES
NO
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
Check F100 PIN 14, 15
≥
-65dBm
Resolder or change
F100
NO
YES
CONTINUOUS RX ON
RF INPUT : 10700CH
AMP : -50dBm
Summary of Contents for GT-P3100
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