18
Rosen AV7000 Owner’s Manual
USING EXTERNAL SOURCES
You may use optional external video games, camcorders, and other
portable video units by connecting the unit to the auxiliary RCA input
jacks on the unit. You must remove the cover to access the jacks, and
press SOURCE or MODE to select “AUX 1.”
Red — Right channel audio input
White — Left channel audio input
Yellow — Video input
To use an external game system, a 12VDC to 110VAC power inverter,
available at most electronic retail stores, is often required.
Note: If you want to watch non-widescreen, 4:3 images, press
the DISPLAY button on the remote control until “STANDARD”
is displayed on the screen. This will properly size the image,
instead of stretching the image across the wide screen. In
“STANDARD” mode, you will see black bars on the sides of the
image, like this:
Motion picture film and cameras, and later tele-
vision screens, were originally designed around
a screen size that was almost square - it was
one-third wider than it was high (another way to
say this is that it had a width-to-height ratio, or
aspect ratio, of 4:3. This ratio, 4:3, can also be
expressed as 1.66:1.)
When widescreen movies using technologies
like Cinemascope and Panavision became
popular, new aspect ratios were used for them
- 1.78:1, 2.35:1, and even 2.55:1. When high-
definition television was developed, a screen
shape of 16:9, or 1.85:1, was selected as the
best compromise for viewing widescreen movie
images.
When you watch widescreen movies on a
standard 4:3 television, there are “black bars”
on the top and bottom of the screen. This is
often called a “letterbox” image. The alternative
is called “pan-and-scan,” where the edges of the
image are “cropped” off.
This system uses a widescreen 16:9, or 1.85:1
display - the same aspect ratio as high- defini-
tion televisions. This means that when viewing
widescreen DVDs, these black bars are either
non-existent, or greatly minimized.

4:3

1.66:1

16:9

1.85:1

MANAGING BLACK BARS

Letterbox

Widescreen

Color-Coded RCA Jacks