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Flow Chart of Troubleshooting
7-17. PCS Transmitter
TX ON (5Level)
Yes
F102 Pin8
>= 20dBm
Yes
F102 pin13
>= 18dBm
Yes
PAM100 pin14
>= 18dBm
Yes
PAM100 pin1
<= -11dBm
Yes
PAM100 pin1
<= -15dBm
Yes
U102 pin 7,8,9,10
>= 1V
Yes
Check UCP200
END
No
Resolder CN100, C102
No
No
Resolder C126, L104, L104
No
No
Resolder L103, R119,C112
No
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Check F102
pin12 = H (2.68V),
pin10 = L
Yes
Check PAM100
pin 7, OK?
Yes
R101, R111,L100
>=2.7V
OK?
Yes
7-30
No
Check ANT Switch
control circuit
Change or Resolder F102
No
Resolder or Change PAM100
Check +VBAT or PAM
control signal
Check & Resolder RFLO
No
signal, RF26MHz,
RF PSU Part
Resolder U102
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