🇫🇷 Exelvision EXL100: Part 1 (First Look) [TCE #0587]

Channel:
Australia The Clueless Engineer
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Published on ● Video Link: https://www.youtube.com/watch?v=5-ew3FQ9LnI


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Let's have a look at this interesting French computer from the 1980s utilising a unique CPU, the Texas Instruments TMS7020. The machine also uses an IR connection for its keyboard and joysticks ... the joysticks are stored in an compartment within the machine.

It has an internal 220VAC to DC power supply with four DC voltage levels in use: ±5V and ±12V. The keyboard & joysticks all require 9V batteries.

It doesn't have BASIC built-in ... this comes on a cartridge. It has a 5-pin DIN for the cassette port and a DA15 socket for RGB output.

It has the following main ICs:
Texas Instruments TMS4408 ... 8k x 4bit giving 32KBytes of shared VRAM
NEC D4016 ... 2KByte SRAM for CPU RAM
Texas Instruments TAL004 ... Gate Array
Texas Instruments L30002N ... TMS 7220 CPU
Texas Instruments C34802N ... TMS 7041 peripheral co-processor
Texas Instruments TMP5220CNL ... TMS 5220 speech synthesiser
Texas Instruments TMX3556NS ... TMS 3556 video display processor (VDP)

The ROM cartridge connector is a BURNDY PWBH14DER1A-1 which I can't find any info on - it's a 2x14 design.

00:00 ... Intro
06:00 ... Breaking into a ROM cartridge
10:44 ... Trying out the TENNIS ROM
16:20 ... Dismantling a joystick
20:20 ... Dismantling the computer
23:40 ... Joystick compartment
25:15 ... The motherboard
27:55 ... Close up of the motherboard
32:43 ... Channel thanks & outro

Useful links:
[0] My Github page:
https://github.com/0ddjob/Exelvision
[1] Documentation & Software
http://dcexel.free.fr/index.html
[2] ZIP file containing all the software
https://www.rabbits-games.fr/pack-roms-exelvision-exl-100-retrogaming/
[3] Modern hardware mods
https://codeberg.org/Jonn-reenthused/EXL-100-SWITCHED-KEYBOARD
https://codeberg.org/Jonn-reenthused/EXL-joystick-adaptor
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https://karlcasey.bandcamp.com/
   / @whitebataudio  



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