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
8-4-31. LTE B7 Rx
End
NORMAL CONDITION
Catch the channel?
C1156
≤ -65dBm ?
C1145 = 2.8V?
C1069
≥ -65dBm ?
Check soldered
C1142, C1136, C1138, RFS1001
Re-solder or change U5011
Yes
Ab
No
Re-solder or change
CPL1001, U1004, DUF1000
No
Ab
Yes
No
Ab
No
Yes
Check the voltage at
C2046,C2044 = 1.2V
C2056,C2058 = 1.8V
Yes
LTE B7
Receiver is O.K?
Yes
No
Ab
Re-solder or change U5011
No
Ab
Re-solder or change U2011