Koden MDC-7006, Installation Manual

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MDC-7000/7900 Series Chapter 5 Troubleshooting and on board repair
0092669002-07 5-23
RF module (RFM-100) failure
Re-initialize auto tuning
function.
Auto tuning inoperable
Is auto tuning function operating
normally?
No
End
Yes
Confirm connection between
RF module (RFM-100) J1 and
modulator PCB.
RF module (RFM-100) failure
Is tuning meter voltage of RF
module J1-13 around 2 V?
Yes
No
Tuning meter failure
Fix error part of connection.
RF module (RFM-100)
failure
Magnetron failure
Main logic PCB failure
Is “Error, Antenna, Magnetron
current” message displayed?
Is MIC monitor terminal voltage
within 30 to 70 mV range?
Is “Video signal connection” in
the antenna connection cable
normal?
No radar picture is displayed.
(No echo-receiving signal)
Yes
No
No
No
Yes
Yes