7-13. GSM Receiver
RX ON
RF input : 62CH
Amp : -50dBm
Y e s
Module1 pin8
> = -65dBm
Y e s
Module1 pin1 , pin2
> = -65dBm
Y e s
U100
E1 > = -70dBm
F1 > = -70dBm
Y e s
U100 H7, H 8, J 7, J 8
> = 1V
Y e s
Check U200
END
No
Resolder CON1, C103
No
No
Resolder C112, C108, L107
No
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used with out Samsung' s authorization
Check Module1
pin9 , p in10 , p in12 = L
Y e s
Check U100
J2 , A 6 , B 6 , A 9 , E 9
> = 2 .7V
Y e s
7-28
Flow Chart of Troubleshooting
No
Check ANT Switch
control circuit
Resolder Module1
No
Check & Resolder
U100, U709
RF26MHz , RF PSU Part
Resolder U100