JMA-5300MkIIsm

INDEX > 4.Replacement Procedure > 4.2 Scanner Unit NKE-1130 (JMA-5332-12)
3) Remove the cable connected to the relay filter
circuit board and the four screws (M4) to replace
the relay filter circuit board.
Remove
the screws.
4) After replacing the relay filter circuit board,
follow the disassembly procedure in the reverse
order.
Do not forget to tighten the screws and connect the
cables.
Relay filter circuit board
[Check points]
1) Turn on the radar power supply. After the countdown is completed, start emission and
check that the radar image appears without error.
4.2.12 Receiver Unit Replacement (NRG-229)
[Required tools]
• A Phillips screwdriver for 4 mm screws
• A Phillips screwdriver for 5 mm screws
• Tools for removing the cover from the scanner unit
(see Section 4.2.1, page 4-2)
[Replacement procedure]
1) Remove the cover on the right (starboard)
side (see Section 4.2.1, page 4-2). Remove
the four screws (M5) to remove the metal
fixture. Loosen the four screws (M4) to
remove the driver unit (see Section 4.2.4,
page 4-8).
Remove the four screws.
Driver unit
Metal fixture
Loosen the four screws.
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