User manual and installer guide, Visionhdp, Input calibration – Lumagen VisionDVI & VisionHDP User Manual

Page 15

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VisionHDP

User Manual and Installer Guide

© 2004-2007 Lumagen®, Inc.

12

Rev 1.14

Input Calibration:

Each input source should be calibrated, starting with the DVD. The Lumagen provides four

independent input configuration memories for each input. So, calibration for each input is
independent of the other inputs and multiple independent calibrations can be done for each
input. One use for the multiple calibrations for each input is to calibrate MEMA for day and
MEMB for night viewing. Typically the DVD input is calibrated first, using a DVD calibration disc.
Then the results of the DVD calibration are copied to all input memories as a reference starting
point for the other sources.

Play a DVD calibration disc and select it as the input source. AVIA

®

test patterns are referenced

here, but Digital Video Essentials

®

is also excellent.

Select Lumagen input aspect ratio as 16:9 for a 16:9 screen, or 4:3 for a 4:3 screen. This is

necessary to properly set the overscan.

Select Advanced AVIA

Video Test Patterns

Special Tests

Overscan.

Adjust the input size and position. This selects which pixels are captured. The corner being

adjusted is moved toward the center to make it easy to calibrate. If the corner being adjusted
cannot be seen on-screen, go back to the Initial Output/Input Setup section and correct the
output size, then come back to this step. Adjust the top-left corner of the image first. Then
adjust the bottom-right corner.

Input top-left: MENU

→ IN→ CONFIG→ ADJ→ SIZE→ TOPL→ […,†,ˆ,‡] OK

Input bottom-right: MENU

→ IN→ CONFIG→ ADJ → SIZE→ BTMR

[…,†,ˆ,‡] OK

Select Advanced AVIA

Video Test Patterns

Gray Scale & Levels

Black and White Levels

Needle Pulses.

Set the black level. Follow AVIA instructions for setting the black level. Since the Lumagen-to-

display levels were set above in the Output Calibration section, the Lumagen internal Black
level control should be used. It is recommended that the black frame with two moving bars (2
and 4 IRE) be used for setting black level. The reason is that the black level varies with the
average intensity on the screen for a lot of displays and the black level is most critical in dark
scenes. The command is:

MENU

→ IN → CONFIG → COLR → BLCK → [,ˆ] OK

Set the white level. Follow AVIA instructions for setting the white level (often called contrast).

Since the Lumagen-to-display levels were set above in the Output Calibration section, the
Lumagen internal Contrast control should be used. The command is:

MENU

→ IN → CONFIG → COLR → CONT → [,ˆ] OK

Select Advanced AVIA

Video Test Patterns

Color

Standard Colorbars.

Set Color and Hue and then the Color and Hue offsets for red and green. Set the display’s

Color and Hue to default before performing this calibration step. Follow instructions on the
AVIA disc for the color bar images. First set Color and Hue using the AVIA blue colorbar pattern
and the blue filter. Next set the red color (COLRED)

and Hue (HUERED) offsets using the red

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