3
3 – 2
3.1
3.1.1 Turning Power on and Starting the System
Procedures
1. Check that the ship's power is supplied to the system.
2. Press the power switch to turn the power on.
PWR
The warm-up timer appears on the screen.
3. Press
TX
STBY
.
Radar transmission starts and the scanner unit starts rotating.
"STBY" on the upper left of the screen changes to "TX".
Pressing the
TX
STBY
switch before "STBY" is displayed does not enable radar
transmission.
●
Immediately after radar installation, after replacement of the magnetron or if the system has not
been operated for a long time, set the system to the standby mode and leave it as it is for 20 to 30
minutes before setting it to the transmit mode.
●
When turning power on after power was once turned off, wait 5 min or more after setting the power
switch to OFF until setting it to ON again.
●
Insufficient warming-up may cause sparks inside the magnetron and may make its oscillation unstable.
Start the transmitting mode with the short-pulse range and then go on to the long-pulse range. If the
oscillation becomes unstable during the period, immediately reset the system to the standby mode,
leave it as it is for 5 to 10 minutes and restart the system. Repeat this until the system comes to
oscillate stably.
Attention
CAUTION
The radar may be damaged if the 100 V AC/200 V AC changeover switch on the back of
the indicator is not set in the correct direction according to the ship's power.
Summary of Contents for JMA-7710-6
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Page 20: ...XVIII ...
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Page 30: ...1 7 1 4 Fig 1 2 Outline Drawing of Scanner Unit Type NKE 1056 6M MASS APPROX 41 O UNIT mm ...
Page 31: ...1 1 8 1 4 Fig 1 3 Outline Drawing of Scanner Unit Type NKE 1056 9M MASS APPROX 47 O UNIT mm ...
Page 34: ...1 11 1 5 Fig 1 5 General System Drawing of Radar Type JMA 7710 6 ...
Page 35: ...1 12 1 5 1 Fig 1 6 General System Drawing of Radar Type JMA 7725 6 ...
Page 36: ...1 13 1 5 Fig 1 7 General System Drawing of Radar Type JMA 7725 9 ...
Page 48: ...2 7 2 1 Screen Readouts 3 1 2 3 4 5 7 u i o y 1 0 q 2 t w e r 0 8 4 5 6 7 8 9 0 9 6 ...
Page 50: ...2 9 2 1 Screen Readouts with ATA 3 1 2 3 4 5 7 u i o y 1 0 q 2 t w e r 8 4 5 6 7 8 9 0 9 6 ...
Page 99: ...3 3 38 3 3 ...
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Page 217: ...7 7 1 Routine Maintenance 7 1 7 2 Maintenance of Each Unit 7 2 MAINTENANCE ...
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Page 277: ...9 AFTER SALES SERVICE ...
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Page 298: ...Appendix 2 Circuit Diagram of Radar Type JMA 7710 6 and JMA 7725 6 9 ...
Page 299: ...Appendix 3 Terminal Board Connection Diagram of Radar Type JMA 7710 6 ...
Page 300: ...Appendix 4 Terminal Board Connection Diagram of Radar Type JMA 7725 6 9 ...
Page 301: ...Appendix 5 Primary Power Supply System Diagram of Radar Type JMA 7710 6 and JMA 7725 6 9 ...
Page 302: ...Appendix 6 Internal Connection Diagram of Scanner Unit Type NKE 1055 ...
Page 303: ...Appendix 7 Internal Connection Diagram of Scanner Unit Type NKE 1056 ...
Page 304: ...Appendix 8 Internal Connection Diagram of Display Unit Type NCD 3901 2 ...
Page 308: ...Appendix 10 NSK Log Selection Switches of Display Unit Type NCD 3901 2 ...
Page 309: ...Appendix 11 Setting Table of the Speed Log Select Switches of Display Unit Type NCD 3901 2 ...
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