Lumagen VisionProHDP - Manual (Page 33)

VisionPro HDP
™ User Manual and Installer Guide
© 2004-2006 Lumagen®, Inc. 30 Rev 1.1
For Optimal Picture Quality
•
Proper calibration is as important for attaining the best picture as are deinterlacing and
scaling. If you don’t have one, purchase a DVD setup disc, such as AVIA™, or Digital
Video Essentials™ and watch the training lessons provided. Then follow the calibration
instructions on the disc and in this manual.
•
Using high-quality cables is a very important part of video quality.
•
Use a power conditioner for the video source, video processor and the display. Power
line noise is at least as important an issue for video as it is for audio.
•
Use the DVI-D output if supported by the display. For analog displays, RGBHV is
preferable to component.
•
For display of PC generated data, such as spreadsheets, the PC resolution should be set
to match the native resolution of the display and the Lumagen should be in “pass-
through” mode (
MENU → IN → CONFIG → ADJ → SCALE →
[ ˆ , ‡ ] OK ).
•
Avoid running video signals through the video switch inside receivers, as these tend to
degrade video quality. Also, the Lumagen provides independent configuration
memories for each input. So using it to switch video allows these to be automatically
selected for each source.
•
Component inputs on some displays do not work with standard width HSync pulses.
When using component video to drive the display, if there is a “green cast” the likely
cause is circuitry inside the display. Making the HSync pulse narrower with the
Lumagen HSync Width command (
MENU 0 9 4 0 ) may eliminate this problem.
•
A system’s “ground loop noise” can cause visible horizontal banding, or other
problems. Since the Lumagen case “floats” with reference to ground, it may need to be
grounded to the video source or display using an approximately 18-guage wire.
Eliminating the ground connection on the Lumagen wall plug can also resolve the
issue, but check local electrical codes before trying this.
•
For standard definition programming using cable/satellite settop boxes, it is best to
have the settop output standard definition interlaced video (480i or 576i). If this is not
supported, use 480p output for standard definition programming. This allows the
Lumagen to deinterlace and scale the video rather than the settop box. When the settop
box output standard definition material as 1080i (or 720p), the Lumagen can do much
less to improve the quality of the image.
•
Each input has four configuration memories. These are memory A (
MEMA
), memory B
( MEMB ), Memory C ( MEMC ), memory D ( MEMD ). These memories can be used to have
four independent configurations, such as for day (bright room) and night (dark room).
For this example, the black level will be set higher for viewing in a bright room than for
viewing in a darkened room. To use MEMA and MEMB for day/night, first setup
MEMA normally,
SAVE the settings. Then use the input copy command to copy the
setup to MEMB. Then adjust MEMB as desired.