SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting
9-38
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9-11. DCS Transmitter
TX ON (PCL 0 level)
U100 pin15
>=0 dBm
Yes
No
Yes
Check
U100 truth
table
No
Resolder or Change
U100,
C132,C195 (PAM out)
Yes
Yes
No
Check U200
END
PAM100 pin16
>=0 dBm
Check Vramp
OK
Check VBAT or
Resolder / Change
PAM100
Yes
No
PAM100 pin2
>=-25 dBm
Pin#6: High
Pin#5: High
Pin#4: Low
Check
Operating
mode
Yes
Pin#5(BS)=H
Pin#6(EN)=H
U100 pin11
>=0 dBm
Resolder RFS100,
C104,L100,R100,
C105
Check
R106,R109,
R118,UCP200
Resolder or
Change U100
Resolder PAM100,
Check UCP200
Resolder or change
R119,UCP200