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EXTRONEWS JAN/FEB 1999

Unique Techniques:

Disney Rolls Out DTV

On November 1, 1998—a landmark day in

the broadcasting and A/V industries—

commercial broadcasting in digital and high

definition television formats began in the

United States. Among the networks taking

part was ABC, which transmitted Disney’s

101 Dalmatians in 20 U.S. cities. As part of

this momentous event in television history,

ABC held a special screening of the movie

for parent company Disney’s employees and

their families at their California studios.

Several Extron products, including the CVC

100 component video signal converter, were

used in the event.

The screening was to be shown on three

Panasonic DTV monitors and an NEC DLP

projector. A Tiernan satellite receiver was

used to pick up the signal, as Disney did not

have an off-air receiver available at the

time. To make it all work, Disney asked Joe

Kane of Joe Kane Productions to help out.

Mr. Kane is one of the DTV industry’s

leading experts, and has been a long-

standing proponent of the 720p DTV

format, which ABC/Disney uses in their

broadcasts.

“I found a need for video signal distribution

as well as display device setup,” said Kane.

To resolve these issues Mr. Kane elected to

run a component level signal from the

satellite receiver and into an Extron ADA 6

300 distribution amplifier. From there, three

lines were run to the Panasonic monitors,

while the DLP line ran to an Extron CVC

100 component video converter. The CVC

100 was brought in to convert the

component signal to RGB, which was the

only format the NEC DLP would accept.

Why were component signals used and not

RGB, particularly when all the devices,

including the receiver supported RGB?

“Whenever possible, I distribute Y Pb Pr

(component) to make setup much easier,”

Kane replied. “In setting up any display

device it is critical that the black and white

be correct before you can possibly get a

good color picture.” Unfortunately, black and

white test patterns are not readily available in

the DTV world. This can be remedied by using component video signals, disconnecting the

blue and red leads, and conducting black and white setup on the remaining Y (luminance)

channel. “From there, it is much easier to judge picture saturation in setting the peak

contrast and easier to set up an appropriate level for black, as well as touch up gray scale.

It’s also much easier to check convergence with a black and white signal than one in

color,” Kane said. When using RGB-only devices such as the NEC DLP projector,

Extron’s CVC 100 may then be used to convert the component signal to RGB.

Joe Kane Productions frequently uses the CVC 100 for this kind of operation when

demonstrating the 720p DTV format. Kane has made appearances at the HI-FI and NAB

conventions, just to name a few, and was also present at the ABC press conference where

their use of the 720p format was announced. It was this connection to ABC that

prompted them to request Kane’s presence at the 101 Dalmatians screening. “It’s been

excellent to have [the CVC 100] in our 720p demonstrations,” proclaimed Nicholas

Grieco, of Joe Kane Productions.

One of the great features of Extron’s new System 5cr switcher is the product’s

ability to work in tandem with a projector’s remote control unit. Now you can

“teach” your System 5cr to work with the remote by programming the unit

manually.

But what if you don’t want to take the time to program your System 5cr to your

remote? Extron has taken the bulk of the work out of this endeavor by writing

drivers for most common projectors, and you can now download them directly

from Extron’s Web site. Be sure to check the site often, as new projector drivers

will be posted regularly.

To get System 5cr drivers:

• Visit Extron’s System 5cr drivers page on the World Wide Web at:

http://www.extron.com/product/software/drivers.asp

• Click on the link that corresponds to your projector make and model. When

prompted, save the file to your hard disk. Make sure to save the file to the

“drivers” subdirectory of the System 5cr program directory (for instance,

c:\system5cr\download)

Custom

Projector Control

EXTRON’S CVC 100

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