![background image](http://html.mh-extra.com/html/samsung/sm-g975f/sm-g975f_service-manual_1191996133.webp)
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.
8. Level 3 Repair
8-4-45. WCDMA B5/8, LTE B5/8/12/13/17/18/19/20/26/28 Tx
Check component soldering status OK at
PAM1000 ?
Resolder or change
PAM1000
NO
YES
Check L1012
: About 0dBm ?
Resolder or change
U3000 or L1012 or L1014 or L1013 or
C1018
YES
NO
ANT is O.K?
END
Change
Coaxial cable or mechanical material
YES
NO
Check RFS100
: About 33dBm ?
Resolder or change
RFS100
NO
YES
Check L1004
: About 33dBm ?
Resolder or change
L1004 or C1013 or C1010 or L1006
NO
YES
Check component soldering status OK at
F1000 ?
Resolder or change
F1000
NO
YES
Check L1000
: About 33dBm ?
Resolder or change
L1000
NO
YES