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Flow Chart of Troubleshooting
7-15. DCS Receiver
Module1 pin3, pin4
U100 H7,H8,J7,J8
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RX ON
RF input : 698CH
Amp : -50dBm
Yes
Module1 Pin8
>= -65dBm
Yes
>= -65dBm
Yes
U100
D1 >= -70dBm
C1 >= -70dBm
Yes
>= 1V
Yes
C142, C146
>= 1V
Yes
Check U200
END
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No
Resolder CN100, C103
No
Check Module1
pin9,pin10,pin12 = L
No
Resolder C105, C106, L104, L105
No
Check U100
J2,A6,B6,A9,E9
>=2.7V
Yes
7-30
No
Check ANT Switch
control circuit
Yes
Resolder Module1
No
Check & Resolder
RF26MHz, RF PSU Part
Resolder U100
U100, R117
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