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SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting
This Document can not be used without Samsung's authorization
9-23
9-15. DCS Transmitter
TX ON (0Level)
No
Yes
Check F101
pin9=H, pin11=L
Check FEM
control circuit
No
No
Change
or Resolder F101
Yes
Yes
No
Yes
Check PAM100
+VBAT(pin17) OK?
Check VBAT or PAM
control signal
No
No
Resolder or change
PAM100
Yes
Yes
Check U101
pin12,13,29,29 ≥
2.8V
pin11 ≥ 1.8V
Check & Resolder
PMU part
No
U101 Pin4, 5, 6, 7
≥ 0.2Vp_p
No
Yes
Yes
Resolder U101
Check UCP200
END
F101 Pin13
≥ 30dBm
F101 Pin8
≥ 30dBm
PAM100 Pin15
≥ 30dBm
PAM100 Pin4
≥ -4dBm
Resolder RFS100, C102, R121,
L101
Resolder C115, L105, C116