1. 2. 2. 3. 4. 5. Undo the cable wire ties to the Front Panel, Speakers, CRTs, etc. Unplug the Card Reader USB and 1394 cables from the DM module. Remove screw (a) securing the Main Chassis [and screws (b) in models WS-55813 and WS-65813] . Release the Chassis Locks on each side of the chassis. Slide the Chassis out the rear of the unit. Tilt upward to access the bottom of the main chassis.