Table of Contents
Advertisement
9-15. GSM900 Transmitter
TX ON (5 Level)
Yes
MODULE1 pin10
<= 20dBm
No
MODULE1 pin15
<= 20dBm
No
U100 pin9
<= 20dBm
No
C107,C108 > 3 V,
TA101, F101 >
3.5V
Yes
U100 pin 9
Yes
U103 pin 1,2,3,4
>= 500mV
No
Check UCP200
END
Yes
Resolder RFS100, C102, L100
Yes
Yes
Resolder L114,C127,C128
No
No
Resolder or Change U100
Yes
or Check pins related to U101
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
Check MODULE1
pin14 = H (2.68V),
pin13 = L
No
Yes
Check VBAT
No
Resolder U101
9-34
Flow Chart of Troubleshooting
Yes
Change or Resolder
MODULE1
Check ANT Switch
control circuit
Resolder or Change PAM100
Check +VBAT or PAM
control signal
Advertisement
Table of Contents
