JRC JMA-5212-4/6 - Motor Drive Circuit Board Replacement; NKE-2254

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4.1.5. Motor drive circuit board replacement / NKE-2254
[Required tools]
• A Phillips screwdriver for 4 mm screws
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• Tools for removing the scanner unit covers (See Section 4.1.2.)
[Replacement procedure]
(1) Remove the cover from the left (port) side
(see Section 4.1.2), disconnect the cables
and remove the three screws (M4) from the
motor driver circuit, and then detach the
plate on which the motor driver circuit is
mounted.
(2) Disconnect the cables from the motor
driver circuit, remove the four screws (M4),
and replace the motor driver circuit.
(3) After the driver circuit replacement, carry
out the work in reverse order of removal.
Be sure to tighten all the bolts and screws
and connect all the cables.
Remove the
three screws.
Remove the
eight screws.