Bedienungsanleitung Samsung SIRTS360 (Seite 9 von 121) (Englisch, Spanisch)

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CHAPTER 1

Technical overview

CHAPTER 1

Technical overview

For example, if you have a standard resolution TV, you would set the Resolution button

to 480p/i.

Then programs received by the DIRECTV

HD Receiver at any resolution would be

converted to a resolution of 480p or 480i for display on your television.

This information can also be helpful when deciding how to connect your TV and VCR to

the DIRECTV

HD Receiver. For example, if you have a High Definition TV capable of

displaying 1080i, and a standard VCR, you would want to use the COMPONENT, RGB

or DVI jacks (whichever your TV accepts) to connect the DIRECTV

HD Receiver to your TV.

You would then use the VIDEO OUT jack to connect your VCR.

This will provide each device with the highest quality video signal it is capable of using.

NOTE

•

If you connect your TV to one of the composite video out jacks (VIDEO OUT, S-VIDEO OUT), and

you view a HD program with the DIRECTV

HD Receiver’s RESOLUTION button set to either 720p

or 1080i, the picture will be slightly cropped at the top and bottom (the very top and bottom

edges of the image will not appear on the TV screen).

To avoid this problem, set the RESOLUTION button to the 480p/i position if your TV is connected

to one of the composite video outputs. Also, since the RGB, COMPONENT and DVI jacks do not

output the 480i video format, do not connect a standard definition TV capable of displaying only

480i video to the RGB, COMPONENT or DVI jacks. If you use the DVI jack, for the best access to

HD programming, connect the DVI/HDCP output to the corresponding DVI/HDCP input on your

HD Television (HDTV) or HDTV Monitor that supports High-bandwidth Digital Content

Protection (HDCP) technology.

Aspect ratio

In addition to resolution and interlacing, HDTV is also defined by the aspect ratio of its

broadcasts.

Aspect ratio means the shape of the screen as defined by the ratio of the screen’s width

to its height. For analog TV and SDTV, the aspect ratio is 4 units wide by 3 units high

(usually written 4:3).

This is the familiar shape of conventional TVs — slightly wider than they are tall.

For HDTV broadcasts, the aspect ratio is 16:9 (nearly twice as wide as it is tall).

This is, not coincidentally, more like the shape of movies shown in theaters.

This makes HDTV an ideal format for broadcasting and viewing movies on a TV.

But what happens if you are watching a nearly square-shaped 4:3 broadcast on a

rectangular 16:9 TV, or vice-versa? The DIRECTV

HD Receiver allows you to choose from

a variety of screen formats to help you deal with those scenarios.

Screen formats

To deal with the mismatches that can occur between the shapes of TVs and the aspect

ratios of program broadcasts, the DIRECTV

HD Receiver provides you with a set of screen

format controls.

These controls allow you to pick a format to use for both 4:3 TVs showing 16:9 programs,

and for 16:9 TVs showing 4:3 programs.

Here is an explanation of the options. (Details for setting this preference are included in

Chapter 7.)

SIR-TS360-CHAPTER 1 12/15/03 11:55 AM Page 14

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