Level 3 Repair
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8-58
Check C111
≤
-65dBm ?
8-3-23. WCDMA Band8 / GSM900 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
RFS100, 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 L103, L106
≥
-65dBm ?
Resolder or change
L103, L106
WCDMA B8 / GSM900
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 22, 23
≥
-65dBm
Resolder or change
F100
NO
YES
CONTINUOUS RX ON
RF INPUT : 3013CH
AMP : -50dBm
Summary of Contents for Galaxy GT-P6800
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