
8
─
27
Parts Required for Periodic Replacement
Here are parts required for periodic replacement
Part name
Interval
1. Magnetron
4000 hours
2. LCD backlight
50000 hours
3. Fan motor
20000 hours
4. Backup battery
3 years
Replacement of magnetron (V1/V201)
Remove the shield cover of the modulator and check that no charge remains in the high-voltage modulator
circuit. Then, remove the socket of the magnetron. The magnetron can be demounted by removing the
screws fixing it. When mounting a new magnetron, do not touch the magnet with a screwdriver or put it on an
iron plate. After replacement, connect the lead wire correctly.
Handling of Magnetron under Long-Time Storage
The magnetron that has been kept in storage for a long time may cause sparks and operate unstably when its
operation is started. Perform the aging in the following procedures:
(1) Warm up the cathode for a longer time than usually. (20 to 30 minutes in the STBY state.)
(2) Start the operation from the short pulse range and shift it gradually to the longer pulse ranges. If the
operation becomes unstable during this process, return it to the standby mode immediately. Keep the
state for 5 to 10 minutes until the operation is restarted.
◎
Scanner : NKE-2102 Magnetron Replacement Procedures.
(1) Pull out three connectors, P11, P13, P14.
(2) Loosen four screws indi.
Содержание JMA-5206
Страница 2: ......
Страница 28: ...xxii ...
Страница 30: ...xxiv ...
Страница 31: ... xxv Environ mental Protection ENVIRONMENTAL PROTECTION ...
Страница 32: ...xxvi ...
Страница 39: ...1 6 1 4 EXTERIOR DRAWINGS y 1 Fig 1 1 Exterior Drawing of Scanner Unit Type NKE 2062 HS ...
Страница 40: ...1 7 Fig 1 2 Exterior Drawing of Scanner Unit Type NKE 2102 4 ...
Страница 41: ...1 8 1 4 EXTERIOR DRAWINGS y 1 Fig 1 3 Exterior Drawing of Scanner Unit Type NKE 2102 6 ...
Страница 42: ...1 9 Fig 1 4 Exterior Drawing of Scanner Unit Type NKE 2252 7 ...
Страница 43: ...1 10 1 4 EXTERIOR DRAWINGS y 1 Fig 1 5 Exterior Drawing of Scanner Unit Type NKE 2252 9 ...
Страница 44: ...1 11 Fig 1 6 Exterior Drawing of Monitor Unit Type NWZ 164 ...
Страница 45: ...1 12 1 4 EXTERIOR DRAWINGS y 1 Fig 1 7 Exterior Drawing of Processor Unit Type NDC 1340 ...
Страница 46: ...1 13 Fig 1 8 Exterior Drawing of Keyboard Unit Type NCE 7699 ...
Страница 47: ...1 14 1 4 EXTERIOR DRAWINGS y 1 Fig 1 9 Exterior Drawing of NSK Unit Type NCT 4106 ...
Страница 52: ...1 19 ...
Страница 68: ...2 15 ...
Страница 215: ...4 4 4 4 3 MEASUREMENT BY EBLS AND VRMS y yyy Figure 4 2 Own ship Target EBL Control VRM Control ...
Страница 218: ...4 7 ...
Страница 280: ...5 61 ...
Страница 292: ...6 11 ...
Страница 345: ...8 44 8 5 Adjustments yyyy yyyy 8 Exit 1 Press RADAR MENU key The Main Menu will reappear ...
Страница 402: ...8 101 ...
Страница 403: ...SECTION 9 AFTER SALES SERVICE ...
Страница 406: ...9 3 ...
Страница 430: ...11 19 ...
Страница 438: ...Figure 7 Key board unit NCE 7699 Inter connection Diagram ...
Страница 439: ...APPENDIX Figure 8 JMA 5200 On screen controls ...
Страница 456: ......
Страница 458: ...1 ...
Страница 460: ...3 ...
Страница 461: ......