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9-15. DCS Transmitter
TX ON (5Level)
Yes
F100 Pin13
>= 25dBm
Yes
F100 pin8
>= 25dBm
Yes
U103 pin18
>= 25dBm
Yes
U103 pin1
<= -4dBm
Yes
U106 pin 4,5,6,7
>= 0.2Vp-p
Yes
Check UCP200
END
No
Resolder RFS100,C101
No
No
Resolder or Change U103
No
No
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Check F100
pin9= H (2.6V),
pin 11 = L
Yes
No
Check
U103pin2,3,5,6,8+
Vbatt pin4,OK?
Yes
U106 pin 16,17,29,
No
32,36
>=2.8Vpin10>=1.8
Yes
9-23
Flow Chart of Troubleshooting
No
Check ANT Switch
control circuit
Change or Resolder F100
Resolder or Change U103
Check +VBAT or PAM
control signal
Check & Resolder
U106,C117,L123,C126
Resolder U106
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