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Level 3 Repair
8-4-7. GSM850/900 TX
Can't make a call in GSM network
NORMAL CONDITION
catch the channel?
Check the connection
PAM100 @C107 3.0V ?
Check TCXO CLOCK
Replace Board(PBA)
YES
C1038
YES
Check the voltage
YES
@C1032=26MHz?
YES
Back to
previous step
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NO
Put more lead solder
@RFS100,L126,C106,L102
C108
NO
Put more lead solder
each terminal
NO
Put more lead solder
each terminal
NO
Put more lead solder
each terminal
NO
Can Phone make a call
8-44
GSM network?
YES
END
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