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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
7-31
7-17. PCS Transmitter
TX ON (5Level)
Yes
MODULE1 Pin8
>= 20dBm
No
Resolder CN100, C102
Yes
MODULE1 pin13
>= 18dBm
Check MODULE1
pin12 = H (2.68V),
pin9,10 = L
No
No
Check ANT Switch
control circuit
Yes
Change or Resolder
MODULE1
Yes
U101 pin9
>= 18dBm
No
Resolder L109, R100, C121
Yes
Check U101
pin 5, OK?
U101 pin1
<= -11dBm
No
No
Resolder or Change U101
Check +VBAT or PAM
control signal
Yes
Yes
No
U101
pin1
<= -15dBm
Resolder R103, R104, R105
Yes
R110, C126, C129
>=2.7V
OK?
U100 pin
H8,J8,H7,J7
>= 1V
No
No
Check & Resolder RFLO
signal, RF13MHz,
RF PSU Part
Resolder U100
Yes
Yes
Check U200
END