Planar C50RX User Manual

The air filter is in the back of the unit below the power cord. 

1 Using the remote, turn off the lamp and allow the cooling 

fans to stop (about one minute) before proceeding.

2 Power down the unit and remove the power cord.
3 If necessary, lift up the cables so they are not in the way of 

the air filter.

4 Pull straight up on the air filter to remove it.

5 Insert the new air filter. Arrows on the air filter should indi-

cate air flow direction, which is into the unit.

The air filter is in the rear of the unit below the power cord. 

1 Using the remote, turn off the lamp and allow the cooling 

fans to stop (about one minute) before proceeding.

2 Remove the front screen.
3 Loosen the captive screws at the top and bottom of the 

control board.

4 If necessary, lift up and remove the control board from its 

pin hinges.

5 Reach through to the front of the unit to power down the 

unit and remove the power cord.

6 If necessary, lift up the cables so they are not in the way of 

the air filter.

7 Reach through to the front of the unit and pull straight up 

on the air filter to remove it. From the front, it might be 
hard to see. 

8 Insert the new air filter. Arrows on the air filter should indi-

cate air flow direction, which is into the unit.

9 Reposition the control board on its pin hinges.
10 Tighten the captive screws at the top and bottom of the 

control board.

11 Reinstall the front screen.