Samsung GT-N8000 Servise Manual page 86

8-3-24. WCDMA BAND5 TX
U106 PIN14 : About 22
dBm ?
Check the Voltage at
C142 = VOUT_CHARGER?
Check L116,L114,L117
:About 22dBm ?
Check component
soldering status OK at
Check C198,L122,C166 :
About 22dBm ?
Check the Voltage at
C153 = OUT_CHARGER?
Check C162
: About 0dBm ?
Check the voltage at
{C169 = VBAT_RF ?}
& {C168 = 2.85V ?}
& {C164 = 2.65V ?}
& {C170 = 1.8V?}
& {C171 = 1.2V?}
Check the freq. at C158
: 26MHz ?
WCDMA BAND5
Transmitter is O.K?
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YES
NO
NO
YES
YES
NO
NO
F100
YES
YES
NO
NO
YES
YES
YES
YES
NO
YES
NO
END
CHECK soldered
RFS100,C139,L101,C138,L112
C137,L111,C141,C2107,ANT103
Resolder or change
U106, C142
Resolder or change
L116,L114,L117
Resolder or change
F100
Resolder or change
C198,L122,C166
Resolder or change
U108,C150,C153,C154
Resolder or change
C162
NO
Resolder or change
U101,C164,C168,C169,C170,C171
Change or resolder
OSC100
Resolder or change
UCP300
8-53
Level 3 Repair
CONTINOUS TX ON CONDITION
TX POWER DAC:14500 CODE
APPLIED
WCDMA Band5 CH : 4408
RBW : 100KHz
VBW : 100KHz
SPAN : 10MHz
REF LEV. : 10dBm
ATT. : 20dB