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9-15. DCS Transmitter
TX ON (0Level)
F101 Pin13
≥ 30dBm
Yes
F101 Pin8
≥ 30dBm
Yes
PAM100 Pin15
≥ 30dBm
Yes
PAM100 Pin4
≥ -4dBm
Yes
U101 Pin4, 5, 6, 7
≥ 0.2Vp_p
Yes
Check UCP200
END
Resolder RFS100, C102, R121,
No
No
No
Resolder C115, L105, C116
No
No
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L101
Check F101
pin9=H, pin11=L
Check PAM100
+VBAT(pin17) OK?
Check U101
pin12,13,29,29 ≥
2.8V
pin11 ≥ 1.8V
9-23
Flow Chart of Troubleshooting
No
Check FEM
control circuit
Yes
Change
or Resolder F101
No
Check VBAT or PAM
control signal
Yes
Resolder or change
PAM100
No
Check & Resolder
PMU part
Yes
Resolder U101
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