Wcdma Band8 Tx - Samsung GT-N7000 Service Manual

8-3-22. WCDMA BAND8 TX

U1002 PIN14 : About
22dBm ?
Check the Voltage at
C1026 = V_BAT ?
Check L1011, L1014
About 22dBm ?
Check component
soldering status OK at
F1000
Check
L1022, C1055
About 22dBm ?
Check the Voltage at
C1058 = V_BAT ?
Check the Voltage at
C1040 = V_BAT ?
Check C1049
About 0dBm ?
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?}
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YES
NO
NO
YES
YES
NO
NO
YES
YES
NO
NO
YES
NO
YES
YES
YES
NO
YES
CHECK soldered
- RFS1001, C1030, L1016
L1001, C1018, C1019, RFS1000
Resolder or change
U1002, C1026
Resolder or change
L1011, L1014
Resolder or change
F1000
Resolder or change
L1022, C1055
Resolder or change
U1004, C1058
Resolder or change
U1005, C1040
Resolder or change
C1049
Resolder or change
U1000
8-67
Level 3 Repair
CONTINOUS TX ON CONDITION
TX POWER DAC:14500 CODE
APPLIED
WCDMA Band2 CH : 3013
RBW : 100KHz
VBW : 100KHz
SPAN : 10MHz
REF LEV. : 10dBm
ATT. : 20dB