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.
(2) Remove Operation Panel.
Remove 4 screws at both sides.
Unscrew the Print SW counterclockwise. Do not miss the black rubber ring inside.
Disconnect FFC Harness of CN4:PANEL and CN2:PRT SW and remove Operation Panel.
Confirm the direction of insertion and the lock/unlock mechanism.
(3) Remove covers.
Unscrew 2 screw of CF cover.
Remove Frame Front Cover. (Remove 3 rubber caps and unscrew 7 screws.)
Unscrew 6 screws and remove Frame Cover (Right).
(4) Remove Box cover.
Unscrew 4 screws.
Remove the clamp and pull out the cover.
<Note>
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
