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Samsung SM-R750 Service Manual page 54

Wireless device
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8-3-10. WCDMA BAND8 TX
Check component
soldering status OK at
WB8 Transmitter is OK?
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.
Check C103 :
About 20dBm ?
Yes
Check C132 :
About 20dBm ?
Yes
Check L117 :
About 20dBm ?
Yes
U103, U104
Yes
Yes
END
Check soldered or change
No
C100, C101, F106, C174,
RFS100, L100, L129, C109
Check soldered or change
No
U100, C132, C133, L114
Check soldered or change
No
F102, L117, C150, L118
No
Check soldered or change U103, U104
No
Check soldered or change UCP300
8-25
Level 3 Repair
CONTINUOUS TX ON CONDITION
TX POWER IDX1 APPLIED
WB8 CH : 3013
RBW : 100KHz
VBW : 100KHz
SPAN : 10MHz
REF LEV. : 10dBm
ATT. : 20dB

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