Table of Contents
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Flow Chart of Troubleshooting
7-17. PCS Receiver
RX ON
RF input : 661CH
Amp : -50dBm
Y e s
Module1 pin8
> = -65dBm
Y e s
Module1 pin5 , pin6
> = -65dBm
Y e s
U100
B1 > = -70dBm
A1 > = -70dBm
Y e s
U100 H7, H 8, J 7, J 8
> = 1V
Y e s
Check U200
END
No
Resolder CON1, C103
No
No
No
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Check Module1
pin9= H
pin10, pin12 = L
Y e s
Resolder C115, L109, L110
Check U100
J2 , A 6 , B 6 , A 9 , E 9
> = 2 .7V
Y e s
7-32
No
Check ANT Switch
control circuit
Resolder Module1
No
Check & Resolder
U100, U709
RF26MHz , RF PSU Part
Resolder U100
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