Wcdma Band8 Tx - Samsung GT-N8000 Servise Manual

8-3-25. WCDMA BAND8 TX

U106 PIN14 : About 22
dBm ?
Check the Voltage at
C142 = VOUT_CHARGER?
Check L110,L107,L108
:About 22dBm ?
Check component
soldering status OK at
Check L123,C165
: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 BAND8
Transmitter is O.K?
Confidential and proprietary-the contents in this service guide subject to change without prior notice.
Distribution, transmission, or infringement of any content or data from this document without Samsung's written authorization is strictly prohibited.
YES
NO
NO
YES
YES
NO
NO
U106
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
L110,L107,L108
Resolder or change
U106
Resolder or change
L123,C165
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
8-55
Level 3 Repair
CONTINOUS TX ON CONDITION
TX POWER DAC:14500 CODE
APPLIED
WCDMA Band8 CH : 3013
RBW : 100KHz
VBW : 100KHz
SPAN : 10MHz
REF LEV. : 10dBm
ATT. : 20dB