Dcs Transmitter - Samsung SGH-E200 Service Manual

9-15. DCS Transmitter

TX ON (5Level)
Yes
F100 Pin13
>= 20dBm
Yes
F100 pin8
>= 18dBm
Yes
PAM100 pin18
>= 18dBm
Yes
PAM100 pin1
<= -11dBm
Yes
U101 pin 4,5,6,7
>= 1V
Yes
Check UCP200
END
No
Resolder RFS100,C103,L106
No
No
Resolder or Change PAM100
No
Check +VBAT or PAM
No
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Check F100
pin9 = H (2.6V),
pin11 = L
Yes
control signal
No
U101 pin 11,12
16,17,32,33>=2.8V
Yes
9-23
Flow Chart of Troubleshooting
No
Check ANT Switch
control circuit
Change or Resolder
C115,C116,C131
Check & Resolder RFOHP
signal, RF13MHz,
RF PSU Part
Resolder U101