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SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting
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7-25
7-16. PCS Receiver
MODULE1 Pin7
>= -65dBm
Resolder CN101, C101
END
No
Yes
RX ON
RF input : CH center freq : +67.7kHz
Amp : -50dBm
Check MODULE1
pin9 = H,pin10,pin12
= L
U100 pin5, 6
>= -68dBm
U100 pin
H8,J8,H7,J7
>= 1V
U100
pin A1 >= -70dBm
pin B1 >= -70dBm
Check ANT Switch
control circuit
Resolder MODULE1
Resolder C143, L101, L102, C142
R135, C157, C123
>=2.7V
Check & Resolder
U100, R111
RF26MHz, RF PSU Part
Resolder U100
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
Check U200