User guide

8 21 068: M P E G-3 27 0 & 4290 Use r Guide

Ch apt e r 3 Operation

Scr ee n S a ver

Adjust button, the first item in the following list appears on the screen

for adjustment. Pressing the Volume knob switches to each successive

item:

1. Backlight: Rotate the Volume knob to adjust the screen

brightness on a scale of 15% to 100%.

2. Video Blend: Rotate the Volume knob to adjust the transparency

of the on-screen displays and menus on a 30% to 100% scale.

3. Contrast: Rotate the Volume knob to adjust the video contrast on

a 40% to 100% scale.

4. Red: Rotate the Volume knob to adjust the red level on a -128 to

127 scale.

5. Blue: Rotate the Volume knob to adjust the blue level on a -128 to

126 scale.

6. Saturation: Rotate the Volume knob to adjust the video

saturation on a 0% to 100% scale.

7. Gamma: Rotate the Volume knob to adjust the video gamma on a

0 to 10 scale. On this scale, 1 implies a 10% application of the

gamma set in the Video Menu, while 9 implies a 90% application.

8. Black Level: Rotate the Volume knob to adjust the black level on

a 0 to 16 scale.

9. Panel LEDs: Rotate the Volume knob to adjust the brightness of

the panel LEDs on a 0 to 15 scale. This function on each of the

screens works in common on all four of the screens.

Screen Saver

In order to prolong the life of the displays, a Backlight Timeout Interval

is provided. Refer to the Backlight Interval item in the System Menu

on page 42. The default setting is 8 hours. After 8 hours passes with no

button presses or knob turns, the MPEG-3270 or MPEG-4290 will dim

its screens. Pressing any button or turning any knob will bring the

MPEG-3270 or MPEG-4290 back to normal operation.