JMA-5300MkIIsm

INDEX > 4.Replacement Procedure > 4.6 Display Unit : Radar Process Unit NDC-1417
4.6.5 ARPA/ATA Process Circuit replacement (NCA-877WA/877A)
[Required tools]
Phillips screwdriver for 3 mm screws
[Replacement procedure]
1) Refer to Section 4.6.2, page 4-70 and remove the terminal board.
2) You will see the ARPA or ATA process
circuit on the radar process circuit.
3) Remove the four screws holding the ARPA or
ATA process circuit in place, and lift out the
ARPA or ATA process circuit vertically to
replace it. (Use the Phillips screwdriver for 3 mm
screws.)
ARPA Process
circuit
Remove
4) Reassemble the unit following the disassembly
procedure in reverse.
[Check points]
Remove
1) Check that the system starts up properly.
2) Check that no error message appears.
3) Refer to Section 5.2.7 II in the instruction manual to generate a false target, and check
that you can acquire the target.
4) Check that the numerical target data acquired is correctly displayed.
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