User Guide

Flow chart of Troubleshooting and Circuit Diagram 5-22
5-14 DCS Receiver
Rx On
RF input : CH center freq. + 67.7 kHz
Amp. : -50 dBm
U704
Pin 8
-60 dBm
U704
Pin 1
-60 dBm
F600
Pin 3,4
-62 dBm
U600
Pin 17, 18
-62 dBm
U600
Pin 1, 2
(100 KHz)
-50 dBm
Check RF connector
-> resolder
Resolder &
U706 Pin 1
-60 dBm
Check
VC1 : L
VC2 : L
Resolder
F600
Resolder
C602, C603, L600
Check
U503 pin 23,24
(CH-100KHz) X 2
-9 dBm
Check circuit
around U503
Resolder
U601
Pin 2, 3, 4, 5
1~2 V
Resolder
U601
Resolder
U400
No
No
No
No
No
No No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
U600