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The Memotech MTX Series |
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VIDEO WALL
Dave's Video (Dwarf) Wall
I managed to buy a load of Memotech Video Wall
hardware off ebay
in June 2013, and whilst it would not really be practical to build a
full size Video Wall at home, I would like to see if I can build
myself a Video "Dwarf" Wall (c), (for obvious reasons, I decided
against just using the name Video Dwarf !).
The seller had bought the Video Wall hardware, complete with monitors,
as a "working" system, although he had never tried to get it running
and it lay gathering dust for at least 10 years before he needed
to dispose of it when relocating. Unfortunately, when I tested
the system, I found that it had a few faults, my efforts to get
it up and running are going to be documented in this section of
the website.
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My Video Wall
Hardware
Clicking on the links will take
you direct to a selection of detailed photos on my
Video
Wall photos page. |
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Current Status |
| The MTX512S2 computer used to control the Video Wall
system. It looks to be in reasonable condition, but unfortunately,
it is missing a couple of key caps, "3" from the main keyboard and "4" from
the numeric keypad, the keyboard itself feels very good though. |
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| The Video Wall Controller (DDFS), with
the top cover removed, showing the 2 x 6" card frames for the
controller and frame memory boards. Faults : The Power
Supply had failed - see
here for replacement details
Ready for testing
with the computer and Video Decoder |
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| Video
Decoder & Distribution Amplifier - 1
Faults : The unit powers up, but there are no
outputs from the RGB video connectors. As I have
other D/DAs, fault finding/repair of this one is a
pretty low priority. |
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Video
Decoder & Distribution Amplifier - 2
Status : This DDA
is essentially working, the RGB outputs are not as
"crisp" as some of my other DDAs, but I have not
spent much time trying to optimise the various
adjustments on the PCBs. |
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| Video Decoder &
Distribution Amplifier - 3
Status : The unit is working, outputs are
present on each of the RGB video connectors and
after doing a quick set-up, 7 of the 8 video outputs
generate good quality pictures on the TV. A single
video output on this DDA has problems displaying
white text, displaying it as magenta instead. |
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| Video Decoder &
Distribution Amplifier - 4
Status : The unit
is working, I have done a very quick set-up on it
and now get acceptable video output on all of the
RGB outputs. |
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| The Reflex Controller
Faults : The Power Supply had failed - see
here for replacement details |
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See
here for the
testing programme |
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