Pcs Receiver - Samsung GT-S3600L Service Manual

Flow Chart of Troubleshooting

9-17. PCS Receiver

RX ON
RF input : 661CH
Amp : -50dBm
Yes
U101 Pin17
>= -65dBm
Yes
U101 pin7,8
>= -68dBm
Yes
U100
pin 21 >= -70dBm
pin 20 >= -70dBm
Yes
U100 pin 4,5,6,7
>= 1V
Yes
Check UCP200
END
No
No
No
Resolder C128,C129,L114
No
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Resolder L101, C107
Check U101
pin10,pin15 = Low
Yes
U100 pin 11,12,32,33
>=2.8V
Yes
9-22
No
Check ANT Switch
control circuit
Resolder U101
No
Check
U101, OSC100
RF26MHz, RF PSU Part
Resolder U100