That's fine, but you came in hot putting "extensive user manual" in quote marks and giving the impression that the information you were looking for was nowhere to be found. Of course I meant to provide supplementary, illustrated written material as a companion to the video on my website, but that's just one of the things which never gets off the to-do list (largely since I'm primarily concerned with documenting the firmware I wrote for the thing). In point of fact, I prefer a written reference myself and I have had my own video freeze-framed for two days as I work on a pair of 800XL U1MB installations. I wonder to myself why I didn't simply screen-grab the video or hunt around for the original graphics, but whatever; it wasn't a massive headache to fire the video up.
Well, while the video is supposed to be instructional, it's not aimed at someone who wants to get the device installed in five minutes. If a video is needed (or rather, written instructions) on how to shorten or build your own ribbon cables, I can produce something. Sure: I've filmed the process before, but it's doubtless buried in this or one of the other U1MB install videos.
The video is aimed at someone who wants to do a neat install, has the dexterity and tool ability to do so, and is prepared to research and learn how to do new things. YouTube's chapters feature is pretty good now; I keep meaning to go through older videos and add descriptive jump points.
Anyway: I take on board the comments regarding written instructions and even agree to a large extent, but when I wasn't actually asked by the vendor to produce installation guides in the first place (instead doing so off my own back since I was doing the work anyway), said videos then get opportunistically linked on the vendor's product page (without me asking for this to happen), and then people complain that the installation instructions aren't good enough, it is possible to end up in a double facepalm moment.
For reference: the grey connectors are called 'Harting' connectors and can be a little difficult to source. I do have some spares, but attempt to re-use the existing connectors in 100 per cent of cases. This requires the deft use of a jeweller's screwdriver and takes practice before you can get away with not breaking them. The IDC connectors at the other ends of the ribbon cables are pretty easy to source, meanwhile. They're not intended for re-use either, but you can get away with doing so if you're handy with a craft knife.
The initial U1MBs (produced by Candle O'Sin) shipped with bespoke ribbon cables tailored to the host machine and quite nicely documented on Candle's website (all of this material could have been reproduced and still up on the Internet in a centralised location, but it wasn't and it isn't). This required the customer to decide which model of machine they were going to install the board in before they ordered it, but did avoid all this cable hacking. I just happen to think Candle's original installation philosophy was spot on and a good reference for others, but many people prefer to go their own way and hacking up the ribbon cable, etc, is a risky proposition for many.
Anyway: the videos document my approach to installing stuff in customer machines, and if they inspire others to do a decent job, they served their purpose.