10 DAD860 Setup and Programming (cont.)
ADDITIONAL MENU ITEMS
RF # - MPEG # -
This menu screen allows selec-
tion of the desired channel and MPEG program
from the list saved in memory or by one of the
methods in the secondary menus described previ-
ously.
TV TYPE -
Since the purpose of the DAD860 is
usually to provide 480i, 4:3 aspect ratio video for
display as a 480i signal, choose the 4:3 setting.
MODE -
This selection determines how the video will
be displayed on the TV screen. One of the AFD
modes is recommended.
“AFD/LTR”
and
“AFD/
CROP”
use data that may be transmitted by the
broadcaster via the AFD (Active Format Description)
codes to automatically switch the DAD860’s output
between cropped or letterbox display to provide the
optimum viewing experience on a 4:3 TV. If no codes
are being transmitted, the aspect ratio will default to
“LTR BOX”
or
“CROPPED”
respectively.
If it is
desirable to ignore AFD codes and force a particular
mode, that may be done by selecting one of the
following settings.When wide screen video is being
received,
“CROPPED”
truncates the left and right
sides of the picture and expands it vertically to fill the
4:3 sized screen. Proper geometry is maintained.
This mode is sometimes called “Center Cut”.
“LTR BOX”
will show the entire picture without
distortion, but will leave black bars above and below
the picture.
“STRETCH”
expands the picture verti-
cally without cropping the left and right sides. The
“STRETCH”
mode is seldom used.
VOLUME -
This menu determines the audio output
level of the audio audio outputs. The selections are
from 0 to 100. Adjust for maximum audio level without
distortion. 85 is the default value.
AUDIO -
Determines the language of the output
audio when multiple languages are available. The
choices are
“1. ENG” (
English)
, “2. SPA”
(Spanish)
and
“3. FRE”
(French)
.
WEAK SIG -
This is used to select the video output that
is to be displayed if the signal on the selected channel
is either absent or too weak for successful decoding.
The choices are
“NO MUTE”
, and
“MUTE”
. If “
NO
MUTE”
is selected, pressing the RIGHT button will
take the user directly to the
VERSION NUMBER
screen. However if
“MUTE”
is selected, the
MUTE
SCR
screen appears with the choices of
“BLUE SCR”
(blue screen) and
“NO VID”
(no video). Use the up or
down buttons to make the desired selection and press
the right button to proceed to the Version Number
screen. Muting, if selected, will occur if the SNR
drops to 15 dB, and the unit will unmute when the
SNR then reaches 17 dB or higher. With no muting
selected, the screen will still go to blue screen at
around 3 dB below usable 8VSB SNR.
UNIT # - SN -
This is the default screen when a
DAD860 is selected. It displays the unit number of
the selected DAD860 as well as the signal to noise
ratio (SN) of the signal being received. If no signal
is being received. “NO LOCK” will be displayed
instead of a signal to noise ratio.
CH PLAN -
This menu allows the selection of the
type of channel plan that will be received. The
choices are “OFF AIR”, “CATV STD”, “CATV HRC”
and “CATV IRC”. Tables showing channel number
vs frequency of CATV STD and OFF AIR (broadcast
TV) channel plans are shown on pages 11 and 12
respectively.
PROGRAMMING WITH A PC
In addition to being programmed with the ‘DAD860
Controller’, the DAD860 can be programmed with a
PC running ‘DAD860 Remote Control Software’.
Connection to the PC is accomplished using a
standard RS232 serial cable connected from a
serial port on the PC to the RS232 serial port in the
front panel of the DAD860.
Details of the programming procedure are included
in the documentation supplied with the software.
Once programming is complete, the RS232 cable
may be removed from the DAD860. It is not neces-
sary to leave the PC connected after programming
is complete.
MEMORY RETENTION
Regardless of whether a DAD860 is programmed
using the ‘DAD860 Controller’ or a PC running
‘DAD860 Remote Control Software’, a DAD860 will
retain the programming even if power is removed
for prolonged periods.
VERSION NUMBER -
The firmware version number of
the selected DAD860 is displayed on this screen.
ADD’L INFO - MANUAL SELECT PROGRAMMING
2) Enter the MPEG program number or an actual
audio PID number, but not both. When entering an
audio PID number, make sure the MPEG program
number is not programmed.
1) The RF channel must always be entered .
.