Level 3 Repair
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Confidential and proprietary-the contents in this service guide subject to change without prior notice.
8-52
U116 PIN11 : About 22
dBm ?
8-3-22. WCDMA BAND8 TX
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
Check the Voltage at
C134 = VOUT_CHARGER?
Resolder or change
U116, C134
Check C143, L107
:About 22dBm ?
Resolder or change
C143, L107
YES
NO
NO
YES
YES
CHECK soldered
U119, C144, L111, L110, C188,
L126, L127, L142, C189, ANT103
NO
Check component
soldering status OK at
U118
Resolder or change
U118
NO
YES
Check C176, L118
:About 22dBm ?
Resolder or change
C176, L118
YES
NO
Check the Voltage at
C153 = OUT_CHARGER?
Resolder or change
U129, C153
NO
YES
Check C154, C161
: About 0dBm ?
Resolder or change
C154, C161
YES
YES
Check the voltage at
{C158 = VBAT_RF ?}
& {C157 = 2.85V ?}
& {C155 = 2.65V ?}
& {C159 = 1.8V?}
& {C160 = 1.2V?}
Resolder or change
U103
Check the freq. at C150
: 26MHz ?
Change or resolder
OSC100
WCDMA BAND8
Transmitter is O.K?
Resolder or change
UCP300
END
NO
YES
NO
YES
NO
Summary of Contents for Galaxy Tab GT-P7500
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