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4-13
[Operation check]
After having completed the replacement, follow the procedure below to check the
operation.
(1) Turn on the radar, open the service engineer menu, restore the scanner unit times,
and make sure that the data has been correctly continued before/after the T/R
control circuit board replacement (check the transmission time and the motor rotation
time).
(2)
Begin transmission once the countdown is complete and check that the radar
image is correctly displayed.
4.1.9. Receiver (NRG-162A) replacement / NKE-2254
[Required tools]
• A Phillips screwdriver for 4 mm screws
• A Phillips screwdriver for 5 mm screws
• Tools for removing the scanner unit covers (See Section 4.1.2)
(1) Remove the cover on the right (starboard)
side (see Section 4.1.2), remove the cables
connected to the transmitter-receiver unit
and the screws (three M5 screws) holding
the transmitter-receiver unit in place, and
remove the transmitter-receiver unit.
Remove the five
cables.
Remove the three
screws.
Summary of Contents for JMA-5212-4
Page 2: ......
Page 7: ... Chapter 1 Equipment Overview ...
Page 8: ... ...
Page 11: ... Chapter 2 Equipment Overview ...
Page 12: ... ...
Page 34: ...2 22 ...
Page 35: ... Chapter 3 Service Parts ...
Page 36: ... ...
Page 43: ...3 7 Figure 3 1 Exploded Diagram of the NKE 2103 ...
Page 47: ...3 11 Figure 3 2 Exploded Diagram of the NKE 2254 ...
Page 51: ...3 15 Figure 3 3 Exploded Diagram of the NDC 1460 Fuse nut Connector nut Connector nut ...
Page 53: ...3 17 Figure 3 4 Exploded Diagram of the NCE 7699A ...
Page 54: ...3 18 ...
Page 55: ... Chapter 4 Replacement of Major Units ...
Page 56: ... ...
Page 108: ...4 52 ...
Page 109: ... Chapter 5 Program Update ...
Page 110: ... ...
Page 114: ...5 4 ...
Page 115: ... Chapter 6 Troubleshooting ...
Page 116: ... ...
Page 150: ...6 34 ...
Page 151: ... Chapter 7 Drawings ...
Page 152: ... ...
Page 170: ......
Page 171: ......