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Flow Chart of Troubleshooting
9-20
9-12. DCS Transmitter
END
Check UCP200
Check VBAT or PAM
control signal
No
Change or Resolder RFS100
Yes
RFS100 pin19
≥ 25dBm
Resolder RFC100,C131,L103
TX ON (5Level)
VDD = H (2.5V),
VC1 = 1.5V
VC2, VC3= 0
RFS100 pin22
≥ 25dBm
PAM100 pin17
≥ 25dBm
PAM100 pin1
≥ -4dBm
Check ANT Switch
control circuit
Resolder or Change L106
Yes
Check PAM100
pin2,3,4,5,8 is ok?
Resolder or Change PAM100
No
No
No
No
Yes
Yes
Yes
Yes
No
Yes