Wcdma 900 / Lte B8 Tx - Samsung SM-A510FD Service Manual

8. Level 3 Repair

8-4-28. WCDMA 900 / LTE B8 TX

It is not catching the channel
in normal condition
Check ANT PATH
any damage
(RFS1003, C1178, L1063,
ANTT2000, ANT2001,
ANT2002, C2005, C2062,
C2033, L2030, C2001)
Check Tx path
L1066, C1128, L1041,
C1010
Is it ok?
Check F1004,U2002, U1006
any damage
(Crack, open, etc)
Change the board
END
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Yes
No
No
Yes
Yes
No
Re-solder or change
Antenna path components
Re-solder or change
http://www.easy-firmware.com
Rx path components
Re-solder or change
F1004, U2002, U1006 components