Lexmark W820 Service Manual page 295

Removal
1.
Remove the I/O PWB.
2.
Remove the five P/Js from the AC Driver PWB.
3.
Refer to the appropriate Figure 1 or Figure 2 and remove the screws securing the
Plate, Bracket, and AC Driver PWB to the frame and remove the Bracket and the
Plate.
4.
Remove the two screws securing the Plate, Bracket, and AC Drive PWB to the frame
and remove the Bracket and the Plate.
5.
Press in on the two latches securing the top of the AC Driver PWB to the printer
frame and remove the PWB.
Replacement
1.
Reinstall the AC Driver PWB as shown.
2.
Press the PWB against the printer frame so the two latches at the top of the PWB
lock the PWB in place.
3.
Reinstall the Plate as shown, making sure the screw holes in the Plate line up with
the screw holes in the frame.
4.
Use the screws to secure the bracket, Plate, and PWB to the printer frame.
5.
Reinstall the Bracket over the SCRs on the PWB.
6.
Use two screws to secure the Bracket, Plate, and PWB to the printer frame.
7.
Reconnect the five P/Js to the AC Driver PWB.
8.
Reinstall the I/O PWB.
4025-XXX
4-87
Repair Information