Table of Contents
Advertisement
Flow Chart of Troubleshooting
7-14. PCS Receiver
RX ON
RF input : CH center freq : +67.7kHz
Amp : -50dBm
Yes
U101 Pin7
>= -65dBm
Yes
U101 pin3
>= -65dBm
Yes
F102 pin1
>= -67dBm
Yes
U102
pin32 >= -70dBm
pin33 >= -70dBm
Yes
U102 pin7, 8, 9, 10
>= 1V
Yes
R117, R118, R119,
R120 >= 1V
Yes
Check U202
END
No
Resolder RFS101, C104, L123
No
No
Resolder F102, C117, L111
No
Resolder L108, L109, L110
No
No
Resolder R117, R118, R119,
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
Check U101
pin2 = H,
pin4, pin8 = L
Yes
Check U102
pin23, 26, 31 >=
2.7V
Yes
R120
7-40
No
Check ANT Switch
control circuit
Resolder U101
No
Check & Resolder
U102, R107, R108
RF26MHz, RF PSU Part
Resolder U102
Advertisement
Table of Contents
