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SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting
This Document can not be used without Samsung's authorization
9-29
9-18. DCS/PCS Transmitter
Resolder U101
or Check pins related to U101
U100 pin10
<= 13 dBm
Resolder RFS100, C144, L106
END
Yes
No
No
Yes
U102 pin 1,2,3,4
>= 500mV
Resolder or Change PAM100
PAM 100 pin 10
>= -8dBm
Yes
Yes
No
Yes
Yes
Yes
No
No
Yes
No
No
No
Check +VBATT or PAM
control signal
Resolder or Change PAM 100
Check ~ VBATT
Yes
Resolder L113,C133,C135
Check ANT Switch
control circuit
Change or Resolder U100
C142,C127 > 3 V,
C141, F101 > 3.5V
PAM100 pin10
<= 13 dBm
F100 pin12
<= 13 dBm
Check F100
pin14 = L ,
pin13 = H(2.68V)
TX ON (5 Level)