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Flow Chart of Troubleshooting
9-18. Wi-Fi Receiver
RX ON
RF input : CH center freq : +67.7kHz
Amp : -50dBm
Yes
F500 Pin4
>= -65dBm
Yes
F500 pin2
>= -67dBm
Yes
U502
pin55 >= -70dBm
U502
pin20,24,25,26,27,28
>= 2.9V
Yes
Check UCP200
END
No
No
No
No
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Resolder RFS501
Resolder F500
Resolder C508
Check U400 pin16
>= 2.9V
Yes
U505 pin4 >=1.2V
&
U506 pin3 >= 2.8V
Yes
Check & Resolder
U102, R109
OSC501(40Mhz)
9-36
No
Check U400(PSU part)
No
Check U505 or U506
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