Control Panel - Printronix

P9212 Maintenance Manual

Control Panel

1. Unplug the printer power cord from the AC receptacle. It is also highly
recommended that you wear an anti–static wrist strap whenever you
handle circuit boards.
2. Using a 5/16 inch wrench or nut driver, loosen, do not remove, the four
screws which hold the control panel in place. (See Figure 6–15, page
6–56, item #4.)
3. Remove the front panel (Figure 6–6, page 6–38, item #1), from the
cabinet to gain access to the card cage:
a. Loosen the retaining screw located inside the top of the cabinet,
b. Lift and pull the panel away from the printer to remove.
4. Remove the card cage access panel by removing the five screws which
hold it in place.
5. Follow the control panel ribbon cable to the berg connector on the front
edge of the CCB or LMI PCBA. Remove the connector from the circuit
board, and cut the necessary tie–wraps to free the cable.
6. Remove the cable and control panel from the printer.
7. Reverse the removal steps to install the new control panel.
Replacement Procedures and Parts
directly below the control panel.
6–7