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8-3-18. GSM1800 Rx
NORMAL CONDITION
catch the channel?
Trouble occurs only in
GSM1800 band?
Check
C120,L154,L106,C138,C1
39,L108 soldering
condition for any damage
Check U106, U104 for
any damage (crack, open,
Check U124 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
C120,L154,L106,C138,C139,L108
Resolder or change
U106,U104
Resolder or change
U124
8-42
Level 3 Repair
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