JMA-5300MkIIsm

INDEX > 4.Replacement Procedure > 4.7 Display Unit : Operation Unit NCE-5171
[Replacement procedure]
1) Remove the seven screws to open the rear
cover. (Use the Phillips screwdriver for 3
mm screws.)
Remove
2) Remove the two connectors and remove
the rear cover.
Remove
Remove
4
3) Remove the two screws holding the I/F
circuit in place, and replace it. (Use the
Phillips screwdriver for 3 mm screws.)
4) Reassemble the unit following the
disassembly procedure in reverse.
Remove
[Check points]
1) Check that the system starts up properly.
2) Check that no error message appears.
3) Refer to Section 8.3.1 III in the instruction manual to test the keys, buzzers, and lights,
and make sure there are no problems.
4) Check that the PS2 mouse operates correctly.
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