Archived from groups: alt.video.satellite.4dtv (
More info?)
>>> Does memory for sat-positions and virtual maps held in memory that is
>>> volatile that is charged via Caps?
>
>>> Keep loosing sat-positions and virtual maps on 920 unit, and I suspect
>>> the Caps
>
>>Have you tried a soft reset?
>
> This is not the problem; this 920 unit looses only maps/positions. I
> know how to reset it, but you have to re-programm the sat-positions
> [limits are lost too] and let it set on G0-13 overnight. Analog comes
> in fine, but digital maps are wasted. Hence,
>
> 1. Limits need resetting
> 2. Sats need re-programmed
> 3. Park it overnight at G0-13
>
> Digital ID is OK; I've done this several times
The TDT count may be maxed out.
Go to diagnostics screen G to see what the TDT (Transponder Data Table)
count is, when it reaches 1920 strange things can happen. You have to do a
master reset to fix this and reprogram the reciever from scratch.
To get to the diagnosis screen do options 6, 0, 5 and push the left arrow
key once to get to diagnosis screen G. In the middle of the top line is a
four digit number, if it is 1920 you have to do a master reset.
Master reset:
While on G0 13 do options 6, 778, 7
To reprogram:
Just a few words about programming your new 4DTV satellite receiver. As you
may know, the receiver may be programmed a number of different ways. What we
will attempt to do here is get you "started on the right foot", so to speak.
The whole process can be done very easily if you begin your programming
using satellite G9 in the menu. If this satellite is stored correctly first,
all of the rest of the satellites will just fall into place very easily.
Before you begin mapping in the receiver on a digital channel, the receiver
will not have all of the satellites available in the menu, and the digital
channels will not be available.
Here is what to do: if you are replacing a receiver that works, move it to
satellite G10. At this writing channel 24 has the Out Door Channel and
channel 23 is A&E. This is where we will begin our programming. We will
assume that you have followed the wiring diagram in the book, and everything
there is correct. When you attempt to move the dish, pushing the right arrow
button should move the dish in a Westerly direction. If it goes East,
transpose the M1 and M2 leads. Now we are ready to begin.
With the power switch "on", push OPTIONS 6-4. Push ENTER on YES to allow
dish movement for updates. Now push 2 and select your actuator type. If you
are East of the Rockies, normally the actuator is mounted on the West side
of the dish and the dish goes West as it retracts, so select LINEAR/WEST.
Those on the West coast select LINEAR/EAST. Now push 2. If you have only a
C-band system, push the left arrow (next to the big blue ENTER button) and
scroll through the LNB types until you get C-band LNB. If you have C and Ku
on your system, that is the factory default. Push GO BACK, then push 3 and
the set limit menu will show up. At this point, you don't set limits yet,
push 3 again which is program satellites (under the set limit menu). Now you
get a partial list of satellites. Move the yellow highlighting to satellite
G9 and push ENTER.
You will now have a menu allowing you to move the dish and adjust the skew.
Since the unit is not mapped yet, you can use the channel "up/down" button
on the right side of the remote to scroll down to channel 24. Now you should
have the Outdoor Channel visible on the right side of the menu. If the
picture is not clear, adjust skew or dish position to make it clear. HERE IS
THE IMPORTANT PART. If the channel is not visible, DO NOT adjust the skew to
get it because if you do, you will probably have to adjust the skew on all
the rest of the satellites as well. What you want to do is push OPTION 6-4-2
and at the bottom of this menu, for feed horn polarization, select "rotated
90 degrees" and push ENTER. You will now have video visible around the edges
of this menu. Push GO BACK, push 3, set limits and 3 again, program
satellites. G9 will be highlighted, push enter and you will have the menu
that allows moving the dish and adjusting the skew. You may peak up the
picture at this point if necessary.
When you get a clear picture, push GO BACK, push ENTER to save G9. Now you
will have a menu showing the satellites with G9 highlighted in yellow. Push
ENTER and you will be back on the menu allowing dish and skew adjustments.
Use the channel "up/down" button to scroll down to channel 23. This is A&E
and you should get a good signal here-it is a VideoCipher pay channel.
Adjust the skew if necessary to get a good signal then push GO BACK and
ENTER to store G9 again. Now you have stored G9 on both polarities and all
of the rest of the satellites will program in very easily. Generally
speaking, when you look at the menu which allows dish and skew adjustments,
the H and V numbers for the skew should be one positive and one negative and
they should be about 90 degrees apart. For instance if H is 60 then V should
be about -30. Or if H is 45 then V should be about -45 etc. If there is no
ability to adjust the skew in the menu, you have selected LNBF for your LNB
type.
Now using the channel-" up/down" button on the right side of the remote,
scroll down to either channel 7 or 13. You should observe a "quality" number
in the lower right part of the menu. Digital channels need a 15 for a
minimum quality. Now you let the unit "map in" the missing satellites and
the digital channels. This will take about 15 to 20 minutes. You can go to
the system status menu, OPTION 6-5 and observe the channel count in the
lower right. It will increment up to something over 4000 channels. The final
channel count is variable, and will not reach the maximum until the latest
firm ware gets loaded, usually after the first 24 hours of operation. At
this point if you have not called your programmer and had the digital
channels authorized, it would be a good time to do so. Let the receiver sit
on channel 7 for about 15 to 20 minutes to map. Until it is authorized and
mapped, no digital channels will be available, the guide will not work and
the clock will have incorrect time.
After the mapping is done, you can begin programming in the satellites under
the set limits menu. Program them one at a time moving West until the
Western most satellite is stored, then set the West limit. You will now have
the ability to use the EZ sat locator. Simply go to the set limit menu, pick
# 3, program satellites, and highlight W2 on the East, push enter, then push
#1 on the remote and the dish should then automatically move to this
satellite. Caution: you MUST know how far the dish can travel to the East
without getting stuck or becoming damaged. If you don't know, set the limit
short and get help setting the limit from your local dealer.
After you have several satellites stored, and the limits set, the EZ sat
locator will find all of the other satellites for you. Simply go to the
program satellite menu, option 6-4-4, highlight the satellite you want to
store and push enter. Then push 1 on the remote and the dish will move to
that satellite. When it stops, push go back, and enter to save it. Go on to
the next satellite.
UPDATED 11 / 00
T. RAUSCHER