Level 3 Repair
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8-36
Check
C131,C131,L124,L118,L11
9,L12,L120,C154,C153,L1
26 soldering condition
Trouble occurs only in
GSM900/WB8 band?
8-3-15. GSM900/WB8
NORMAL CONDITION
catch the channel?
Check DUF100,U116,
U117 for any damage
(crack, open, etc)
CHECK soldered components
C131,C131,L124,L118,L119,L12,L120,
C154,C153,L126
Resolder or change
DUF100,U116,U117
Change the board
END
No
Yes
No
Yes
No
No
Try 8-3-3 Repair procedure
NO
Yes
Check U124 for any
damage (crack, open,
etc)
Resolder or change
U124
Yes