Gsm850 Rx - Samsung GT-I8190 Servise Manual

Level 3 Repair

8-3-15. GSM850 RX

NORMAL CONDITION
catch the channel?
Trouble occurs only in
GSM1800 band?
Check C137, C139, L128
soldering condition for
any damage (crack, open,
Check F101 for any
damage (crack, open,
Check U100 for any
damage (crack, open,
Change the board
END
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No
NO
Yes
Yes
etc)
No
Yes
etc)
No
Yes
etc)
No
Try 8-3-3 Repair procedure
CHECK soldered components
C137, C139, L128
Resolder or change
F101
Resolder or change
U100
8-30