24
OPERATING INSTRUCTIONS
DSD 642
Set LNB Frequency
The LNB local oscillator frequency or frequencies must be appropriate
for the LNB installed on the satellite dish. The information is supplied with
the LNB.
To set the frequency:
1
Repeat steps 1 to 6 of Set LNB Power (page 22).
2
Press
?
to highlight Set LNB Frequency.
3
Press OK.
The Set LNB Frequency screen is displayed, in which LNB Mode
is highlighted.
4
Press
=
or
<
to set the LNB mode (single or dual frequency).
5
Press
>
or
?
to highlight LNB Frequency or Switching.
6
Use
=
as backspace to erase the numbers, then enter the correct
values via the numbered buttons.
7
Press OK to activate the settings.
The Change LNB Settings Menu is displayed.
NOTE:
Factory default setting is for dual frequency.
Change Manual Tuning Parameters
The factory preset values will normally not require changing. If, however,
it is necessary to change the values, do the following:
1
Repeat steps 1 to 5 of Set LNB power (page 22).
2
Press
?
to highlight Change Manual Tuning Parameters.
3
Press OK.
The Change Manual Tuning Parameters screen is displayed.
4
Press
>
or
?
to highlight any of the four entries; Frequency,
Symbol Rate, Polarisation, Forward Error Correction.
5
Edit Frequency and Symbol Rate using
=
as backspace and the
numbered buttons. Edit Polarisation and FEC using
=
and
<
.
These buttons traverse through a continuous list of possible
choices.
6
Press OK to save changes and leave the screen.
The Change LNB Settings Menu is displayed.
Tune DSD
If the settings made in Change LNB Settings and Manual Tuning are
satisfactory, retune the decoder with these settings as follows:
1
Press
?
to highlight Tune DSD.
2
Press OK.
A rotating segment on the decoder front panel indicates that it is
searching for the default frequency. The decoder then returns to
the current service, and the Information Bar and Clock are
displayed for the preset period of time.
Reset to Factory Defaults
If difficulty is experienced in the functioning of the decoder, it may be
advisable to reset the factory defaults. This is achieved by selecting the
Reset Factory Defaults then pressing OK.
Signal Detection
This facility is used to help final alignment of the satellite dish and to
confirm that a signal is being received from the satellite.
NOTE:
For LNB adjustment refer to the LNB installer. The
decoder signal detection facility is only useful for
final alignment of a dish that is already aimed
roughly at the satellite.
If there is no signal the bars will not be present.
1
Press MENU on the RCU.
The Main Menu options list is displayed.
2
On the RCU, press
?
to highlight Advanced Options.
3
Press OK.
The Advanced Options Menu is displayed.
4
Press
?
to highlight Signal Detection.
5
Press OK.
The Signal Detection screen is displayed. The screen shows the
service provider name and the strength of the signal.
6
Adjust the alignment of the dish to obtain the maximum signal
strength as indicated by the bars on the screen. Press
>
and
?
to toggle between the coarse and fine tuning.
7
Physically lock the dish into position.
8
Press OK.
The Advance Options Menu is displayed.
9
Press EXIT to return to the Main Menu or MENU to return to the
service.
Information
The Information Menu has two submenus, DSD Status and CA Status
which provide important diagnostic and version information to technical
personnel. You may be asked to read some of this information to Helpline
personnel.
The Decoder Status screen consists of a read only screen, in which
several decoder parameters can be monitored. For example, the CA and
the Smart Card versions are displayed.
The CA Status screen consists of a screen, in which several Conditional
Access parameters can be monitored. For example, Smart Card (SC)
version number, Smart Card Serial Number (SC - SN), Conditional
Access Status, Channel number and name and latest received EMM
and ECMs.
To view the information do the following:
DSD Status
1
Press MENU on the RCU.
The Main Menu options list is displayed.
2
On the RCU, press
?
to highlight Advanced Options.
3
Press OK.
The Advanced Options Menu is displayed.
4
Press
?
to highlight Information.
5
Press OK.
The Information Menu is displayed, in which the DSD Status
option is highlighted.
Summary of Contents for DSD 642
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