26
TDC777D INSTALLER’S MANUAL (502-3432110)
MAKING USER SETTINGS (cont.)
About TV Display Capability (resolution settings)
•
The set-top
can transmit pictures to the TV in a range of resolutions (also called “Display Capabilities”
- see below for the settings available). Generally, higher screen resolutions give better quality pictures.
However, the quality always depends on how the program was originally transmitted.
•
Different TVs
display different screen resolutions. For example, standard TVs display “480i”, EDTVs
(Enhanced Definition TVs) display “480p”, and most HDTVs display “1080p”, “1080i”, or “720p”. Many
HDTVs will display at more than one resolution. For more information, see the information supplied with
the HDTV. See also the note, right.
You may need to make appropriate TV Display Capability settings on the set-top, so that it is compatible with
the TV. See the next page for full instructions.
In order to display the best picture every time, you must select
every
resolution that the TV is capable of
displaying. This ensures that programs are displayed with minimum distortion.
TV Display Capability settings
•
480i
is standard definition NTSC and is transmitted
in a 4:3 aspect ratio (see right).
•
480p
is enhanced digital TV and can be transmitted
in either a 4:3 or 16:9 aspect ratio.
•
720p
,
1080i
, and
1080p
are HDTV and are
transmitted in a 16:9 aspect ratio (see right).
480i transmission:
The aspect ratio is 4:3
1080i transmission:
The aspect ratio is 16:9
NOTE
When the HDTV and set-top are
connected by an HDMI
connector,
the set-top gets information from
the HDTV about the HDTV’s display
capability. The set-top uses this
information to adjust its TV Display
Capability settings.
The set-top also records the HDTV’s
ID (identification), so that only one
HDTV is supported at any one time.
When the HDTV has updated the set-
top’s TV Display Capability settings,
you may change them if you wish.
Your changes will then be stored with
the ID.
You can restore the set-top’s TV
Display Capability settings to their
factory values, as described on page
32. You can also restore the set-top to
the settings that the HDTV has passed
to the set-top. To do this you must first
restore the factory settings while the
HDMI cable is disconnected from the
set-top, then reconnect the HDTV via
the HDMI cable.
TV Aspect Ratio
4:3
>16:9
2. Press the
U
or
D
button until the TV Aspect Ratio you want appears on the front panel.
3. Press the
SELECT
button to confirm your choice and change to that TV Aspect Ratio.
4. Press the
L
button. The front panel will display “ASPt” again.
To continue making the settings, see the next section.
SELECT
SELECT
SELECT
SELECT
Setting the TV Aspect Ratio
The flow diagram (right) shows how you use the
arrow
and
SELECT
buttons on the set-top’s front panel to
change the display and make the settings. See also the instructions below.
If you have not done so already, put the set-top into User Settings mode, as described on page 25.
1. Press the
U
or
D
button until the front panel shows “ASPt”.
2. Press the
R
button.
The current TV Aspect Ratio setting (“4:3” or “16:9”) appears on the front panel. Whenever the current
setting is displayed, the MESSAGE light will be lighted. You may also see the menu, shown below, on
the TV screen. In the menu, the current setting has
>
in front of it.