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8-3-13. GSM900/WB8
NORMAL CONDITION
catch the channel?
Trouble occurs only in
GSM900/WB8 band?
Check L100, L101, L102,
L103, L104, C100, soldering
condition for any damage
(crack, open, etc)
Check F100,U103 for
any damage (crack, open,
Check U107 for any
damage (crack, open,
Change the board
END
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No
NO
Yes
Yes
No
Yes
etc)
No
Yes
etc)
No
Try 8-3-3 Repair procedure
CHECK soldered components
L100,
L101, L102, L103, L104, C100
Resolder or change
F100,U103
Resolder or change
U107
8-28
Level 3 Repair
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