Level 3 Repair
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Confidential and proprietary-the contents in this service guide subject to change without prior notice.
8-54
Check C111
≤
-65dBm ?
8-3-21. WCDMA Band2 / GSM1900 RX
NORMAL CONDITION
catch the channel?
Check the voltage at
{C152 = VBAT_RF ?}
& {C159,C161 = V_BAT?}
& {C151, C167 = 2.85V ?}
& {C147, C164 = 2.65V ?}
& {C150, C169 = 1.8V?}
& {C149, C165, C168) = 1.2V?}
Check the Voltage at
C109 = V_BAT ?
Check component
soldering status OK at
F100
CHECK soldered
RFS1001, C111, L105
Resolder or change
U101, C109
Resolder or change
F100
Resolder or change
U104
Check the freq. at C132
: 26MHz ?
Change or resolder
OSC100
Check C108, L101
≥
-65dBm ?
Resolder or change
C108, L101
WCDMA B2 / GSM1900
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 16, 17
≥
-65dBm
Resolder or change
F100
NO
YES
CONTINUOUS RX ON
RF INPUT : 9880CH
AMP : -50dBm
Summary of Contents for Galaxy GT-P6800
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