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Flow Chart of Troubleshooting
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9-23
9-15. DCS Transmitter
U101 pin 11,12
16,17,32,33>=2.8V
Yes
Resolder U101
Check UCP200
END
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Check & Resolder RFOHP
signal, RF13MHz,
RF PSU Part
Check +VBAT or PAM
control signal
Yes
U101 pin 4,5,6,7
>= 1V
Resolder or Change PAM100
Check ANT Switch
control circuit
Change or Resolder
C115,C116,C131
PAM100 pin1
<= -11dBm
PAM100 pin18
>= 18dBm
F100 pin8
>= 18dBm
Check F100
pin9 = H (2.6V),
pin11 = L
TX ON (5Level)
Resolder RFS100,C103,L106
F100 Pin13
>= 20dBm
Содержание SGH-E200
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