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Samsung GT-S7230E Service Manual page 25

Gsm telephone
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8-3-6. PCS RX
Phone can't catch PCS network
NORMAL CONDITION
@CN100
PAM100 @C103 3.0V ?
Replace Board(PBA)
SAMSUNG Proprietary-Contents may change without notice
catch the channel?
YES
PAM100 CHECK
-65dBm ?
YES
Check the connection
C154, C155, L115
YES
Check the voltage
YES
Back to
previous step
This Document can not be used without Samsung's authorization
NO
Put more lead solder
@C104,L105,C170,L120,L101
L102, R100,R101,R102,R103
NO
Put more lead solder
@CN100,L120,L101,L102
NO
Put more lead solder
each terminal
NO
Put more lead solder
each terminal
NO
8-13
Level 3 Repair
CONTINUOUS RX ON
RF INPUT : 644CH
Amplitude : -50dBm
Does Phone catch
the PCS network?
YES
END

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