Samsung GT-S7230E - Page 30

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Level
3
Repair
8-18
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Check the voltage
PAM100
@
C103

3.0V ?
8-3-9.
GSM
850/900 TX
Put more lead solder
each terminal
Check the connection
C166
Put more lead solder
each terminal
Put more lead solder
each terminal
NO
YES
NO
NO
YES
YES
Check TCXO CLOCK
@
C153=26MHz?
YES
NO
Can't make
a
call in GSM network
NORMAL CONDITION
catch the channel?
END
Can Phone make
a
call
GSM network?
YES
Back to
previous step
Replace Board(PBA)
NO
Put more lead solder
@
C104,L105,C170,C168,L101
L102, R100,R101,R102,R103