Wcdma Band2/Gsm1900 Rx - Samsung GT-N7000 Service Manual

Level 3 Repair
8-3-14. WCDMA Band2 / GSM1900 RX
NORMAL CONDITION
catch the channel?
Check C1030 ≤ -65dBm ?
Check the Voltage at
C1026 = V_BAT ?
Check L1006, L1009
≥ -65dBm ?
Check component
soldering status OK at
F1000
Check F1000 PIN 16, 17
≥ -65dBm
Check the voltage at
{C1062 = VBAT_RF ?}
& {C1000,C100 = V_BAT?}
& {C1061, C1021 = 2.85V ?}
& {C1056, C1016 = 2.65V ?}
& {C1060, C1017 = 1.8V?}
& {C1059, C1022, C1024) =
1.2V?}
Check the freq. at
C1048 : 26MHz ?
WCDMA B2 / GSM1900
Receiver is O.K?
END
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NO
YES
NO
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
CHECK soldered
RFS1001, C1030,L1016
Resolder or change
U1002, C1026
Resolder or change
L1006, L1009
Resolder or change
F1000
Resolder or change
F1000
Resolder or change
U1000
Change or resolder
OSC1000
Resolder or change
U300
8-48
CONTINUOUS RX ON
RF INPUT : 9880CH
AMP : -50dBm