Quantum Data 801GX Manuel de service télécharger pdf (Page 6)

3M Multimedia Projector MP8670/8745/8755/8770 Adjustments

1-6. Convergence

The purpose of this procedure is to properly check the Red, Green, and Blue liquid display (LCD) panels

so that the three colors are aligned at the same location and at the center of the screen.

This allows for projection of the color White.

If it is determined that convergence is a problem, the entire LCD assembly must be replaced.

1-6-1. Necessary Tools

• Quantum Data™ 801GX Video Test Generator or equivalent

• MP8670/8745 Remote Control.

1-6-2. Set Up Test Generator

1. Plug in the video test generator to the RGB

terminal jack located on the backside of the

MP8670/8745.

2. Input the SVGA (MP8670) or XGA

(MP8745) VESA (60) cross-hatch timing

signal.

3. The voltage settings for each input color

need to be programmed into the video test

generator. Refer to the video test generator

user's guide for further assistance.

4. Turn on the MP8670/8745, and allow it to

run for 10 minutes. This warms up the LCD

panels.

5. Position the projector so that the projection

image is approximately 70 inches diagonally

with the W-Zoom button on the remote

control set to Max.

6. Press the Menu button on the remote

control, and then use the Reset button to

return the Setup menu controls to the

default settings.

7. Press the Menu button on the remote

control once again, and from the Setup

menu, adjust the H-Phase so that “jitter”

(flicker) is not evident in any of the

horizontal or vertical lines of the crosshatch

pattern. Adjust for the lowest possible value

where “jitter” is not seen (usually 6 or

lower).

8. Adjust the Focus so that the projection

images vertical and horizontal lines of the

crosshatch pattern are crisp and clear.

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Quantum Data 801GX Manuel de service Page 6