
48
(b) Self-diagnostic tests
Self-diagnostic tests begin with testing of the receiver/demodulator circuit and end with testing
of message-processing. The results are printed out, and if the tests detect no abnormalities,
the print-out will look like this:
The contents and results of diagnosis are in the following.
1)
Receiver/demodulator circuit tests
A loop test of the receiver circuit is executed. When this check is completed correctly, it
prints as following:
“518kHz Receiver: Good”
If any errors are found, the following error message is printed:
“518kHz Receiver: Failed”
・・・・・・・・・・
Press “ALARM OFF”
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・・・・・・・・・・・・・・・
Self Test End
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・・・・・・・・・・・・・・・・
ZCZC ID00
・・・・・・・・・・・・・・・
THE QUICK BROWN FOX JUMPS OVER THE
LAZY DOG 1234567890 . , ? ( ) = / + - :
NNNN
・・・・・・・
End of Message CER = 0.0%
・・・・・・・
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Overall Test Start
・・・・・・・・・・・・
ABCDEFGHIJKLMNOPQRSTUVWXYZ
abcdefghijklmnopqrstuvwxyz
1234567890 . , ? ( ) = / + - : * %
・・・・・・・・・・・・・・
Printer Test Start
・・・・・・・・・・・・・
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Main Processor : Good
・・・・・・・・・
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518kHz Receiver : Good
・・・・・・・
・・・・・・・・・・・・・
Self Test Start
・・・・・・・・・・・・・・・・
・・・・・・・・
518kHz Receiver : Failed
・・・・・・・
Summary of Contents for NCR-330
Page 1: ...NCR 330 NAVTEX RECEIVER INSTRUCTION MANUAL...
Page 7: ...vi EXTERNAL VIEW OF EQUIPMENT...
Page 14: ...3 1 4 STRUCTURE Unit mm External diagram of the NCR 330 NAVTEX Receiver...
Page 16: ...5 1 5 OVERALL FLOW CHART DIAGRAM Overall Flow Chart Diagram of the NCR 330 NAVTEX Receiver...
Page 17: ...6 Overall Flow Chart Diagram of the NAW 330 NAVTEX Antenna...
Page 21: ...10 2 2 REAR PANEL View of the equipment with rear cover removed...
Page 23: ...12...
Page 31: ...20 Fig 3 5 2 Wiring the rear terminal board Only when the power unit is to be used...
Page 33: ...22 Fig 3 6 2 Wiring the rear terminal board Only when battery power is to be used...
Page 66: ...55 Fig 6 3 Removing the casing...
Page 72: ...61...