Service manual

Nacho Family Service Manual 17
Adjust Image Banding
Image banding can appear on the top, bottom, right or left sides of the projected image. Banding occurs when a
portion of the picture that is normally masked appears on the screen. This occasionally happens during shipping or
handling. This model allows adjustments for banding on any side of the image. Banding examples are circled in the
images below.
NOTE If this adjustment does not resolve the issue, the issue may lie with the light tunnel. See page 58 for
information about the light tunnel.
To adjust banding, do the following.
1 Turn the projector upside down on the work surface and remove the lamp door.
2 Defeat the interlock switch with a piece of flexible plastic.
3 Power up the projector and project a plain white or gray image on the screen.