Control Panel Removal (4.3-Inch Screen, 7-Inch Screen) - Lexmark MS81x Service Manual

Control panel removal (4.3‑inch screen, 7‑inch screen)
Warning—Potential Damage: When replacing the control panel, control panel board, or controller board, replace
only one component at a time. Replace the required component and perform a POR before replacing a second
component. If this procedure is not followed, the printer will be rendered inoperable. Never replace both the control
panel and the controller board without a POR after installing each one or the printer will be rendered inoperable.
Never install or remove these components as a method of troubleshooting while operating in normal user mode.
See "Controller board/control panel replacement" on page
Warning—Potential Damage: When a component has been installed in a machine and has been powered up in
normal user mode, it cannot be used in another machine; it must be returned to the manufacturer. The machine
must be powered up in Diagnostic mode or the controller board, control panel boards, or control panel will become
locked.
1
Raise the control panel to its uppermost position.
2
Remove the control panel left bezel. See the
3
Remove the two screws (A) securing the USB cable to the control panel.
256.
"Control panel left bezel removal" on page
Repair information
381
4063
399.