Removing the Control Box on the Brother GT-541


6-2-7. Replacing Control Box

When the PCBs inside are replaced, use GTService Tool to readjust firmware controls. Prepare a voltmeter (tester) and a thermometer and refer to the pages concerned.

(1) Remove Power code.

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(2) Remove Operation Panel.

     Remove 4 screws at both sides.

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Unscrew the Print SW counterclockwise. Do not miss the black rubber ring inside.

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Disconnect FFC Harness of CN4:PANEL and CN2:PRT SW and remove Operation Panel.

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Confirm the direction of insertion and the lock/unlock mechanism.

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(3) Remove covers.

     Unscrew 2 screw of CF cover.

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Remove Frame Front Cover. (Remove 3 rubber caps and unscrew 7 screws.)

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Unscrew 6 screws and remove Frame Cover (Right).

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(4) Remove Box cover.

      Unscrew 4 screws.

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Remove the clamp and pull out the cover.

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Do not soil FFC connectors with grease nor damage. Do not touch connectors with bare hands.

(5) Disconnect Harnesses on Main PCB.

      Disconnect Harness CN4: CR MOT&JAM

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