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
8-4-29. GSM DCS/PCS, WCDMA B1/2, LTE B1/3 Tx_SM-A707F_IND/NES
GSM DCS/PCS, WCDMA B1/2, TD-SCDMA B34/39, LTE B1/3/34/39 Tx_SM-A7070_CHN
END
Check ant path any damage
(ANT9001 ~ ANT9007)
Is it ok? (SUB PBA)
)
Check TX path any damage
(RFS1000~U1009)
Is it ok?
Check TX path any damage
(U1009~U1004)
Is it ok?
?
i
Change the board
Resolder or change
Antenna path components
Resolder or change
TX path components
Resolder or change
TX path components
NO
NO
NO
YES
YES
YES
YES
YES
It is not catching the channel
In normal condition
Check U1004, U2009
any damage
(Crack, open, etc), is it ok?
Resolder or change
U1004, U2009
NO
