Runco VX-4C Pull lens assembly out, Remove Lens Assembly, Install new lens assembly, Orientation

INSTALLATION AND SETUP

STEP 4 Pull lens assembly out

Carefully pull the lens assembly straight out of the projector and set aside.

Remove Lens Assembly

STEP 5 Install new lens assembly

IMPORTANT: Remove the rear (smallest) lens cap from the new lens. Make sure the front lens cap remains on during installation.

Align the large cut-out area on the lens flange to the bottom of the lens mount (which has a matching cut-out). The 3 lens assembly slots should align with the lens mount screws so that the screw heads will fit through the large end of the slots (see Orientation figure).

NOTE: On most lenses, a small extra “keying” slot located at approxi- mately 2 o’clock on the lens flange will align with a set screw in the same location on the lens mount, preventing the lens from being installed in the wrong orientation. If the lens flange does not seem to fit into place over all screws, try rotating the lens assembly in one direction or another.

Orientation

With the lens assembly aligned and the screws inserted through the flange, use both hands to rotate the lens barrel clockwise until the lens mount screw heads lock into the small end of the lens assembly slots.

Secure the 3 lens mount screws.

STEP 6 Reposition the projector for new lens

Remove the front lens cap and reposition the projector closer or further from the screen as nec- essary for the screen and the new lens type (refer to Throw Distance section 2.6). In a permanent installation, always use the appropriate throw distance formula to calculate the distance accurate- ly Power up and test. Adjust offsets as necessary.

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