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SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting
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9-27
9-18. DCS Transmitter
Resolder U102
Check U102 pin5,
15, 17, 20, 31, 38
>=2.8V
Check UCP200
END
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
Check & Resolder RFLO
signal, RF13MHz,
RF PSU Part
Check +VBAT or U103
control signal
Resolder or Change U103
Check U103
pin 2,3,4,5,6 OK?
Yes
U102 pin 1,2,3,4
>= 1V
Resolder R102
Resolder C107, L110
Change or Resolder
MOD100
Check ANT Switch
control circuit
U103 pin1
<= -11dBm
U102
pin37
<= -15dBm
U103 pin10
>= 18dBm
MOD100 pin12
>= 18dBm
Check MOD100
pin14 = L
pin13 = H
TX ON (0Level)
Resolder RFS100,C100,,L102
MOD100 Pin10
>= 20dBm
Yes
Yes
No
No
No
No
No