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New Features (da-4 Chassis); Scrolling Index; Digital Visual Interface (dvi) - Sony KV-32HS500 Training Manual

Direct view/projection television troubleshooting, da-4 & da-4x chassis.
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Chapter 2 - New Features (DA-4 & DA-4X Chassis)
Three new features will be discussed in this section:

Scrolling Index

DVI Interface
Memory Stick® Interface
Scrolling Index
The Scrolling Index allows you to select your
main video from a scrolling index of video
pictures.
The Scrolling Index appears with the currently
selected program in the main (left) window
and four scrolling video pictures in windows
down the right side of the picture tube.
As each picture on the right scrolls to the live
preview window, it changes briefly from a
frozen video to live video. The right side
continues to scroll through the entire channel
list.
Factors Affecting the Scrolling Index:
Ø Scrolling Index does not function
if you use a cable box to view all
channels.
Ø Sources connected to the AUX,
Video 5, Video 6 and Video 7 inputs
are visible in the left window, but not in the scrolling right windows.
Ø Scrolling Index does not function if the parental controls are set.

Digital Visual Interface (DVI)

Introduction
As the digital display technology (e.g. Plasma and LCD) grows so does the need to replace the present analog
HD component connection between external digital device (e.g. Digital TV/Satellite Receiver) and the HDTV
set. The issue is the inherent picture quality problems caused by Digital-to Analog (D/A) and Analog-to-Digital
(A/D) conversion processes.
For example, if you have a digital Plasma display HDTV
signal in the Digital TV/Satellite Receiver must be converted to a analog component video signal and then sent
TM
to the HDTV
where it must be converted back to a digital signal video to drive the Plasma display. Because of
the two video signals conversion steps and the possible analog signal loss across the connection between the
TM
HDTV
and the Digital TV/Satellite Receiver, the picture quality will suffer. Even with an analog CRT the Digital
TV/Satellite Receiver video signal must go through D/A conversion, which can adversely affect picture quality.
The resolution to this dilemma is the creation of a complete end-to-end standard digital video interface, such as
DVI. The DVI interface is a high-speed digital video interface allowing uncompressed high-definition content to
be passed to another DVI equipped device such as an HDTV
Figure 2-1
Scrolling Index
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and a Digital TV/Satellite Receiver, the digital video
TM
set. DVI is the only digital interface capable of
6

2. New Features (DA-4 Chassis)

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