Sorry, I don't know most of the answers and am probably not about to be entirely helpful but since there don't seem to have been any other answers...
> I have replaced the TV lead from inside the power unit, and I get a picture on > my TV. > > However, if the TV is tuned in properly - I get a black and white picture, > otherwise the start up screen is very blue. So there's no way to get colour at all (other than a whole-screen tint)? I remember there being some sort of hardware fault that can cause that — it happened to my original Sam Coupe and we ended up sending it back under the warranty. I think they must just have shipped a new unit, since I remember the disk light changed colour too. That said, it's very that's a completely unrelated story. > There were two SCART leads with the computer, but neither seem to give an > output. > > I seem to recall reading that the SCART is very different to normal. > > Does anyone have spare SCART and cassette leads please? Colin can generally sell you those things if that's acceptable — his website is http://samcoupe.com/ and both composite and RGB scart leads are £9.99. > Also - I have found a semi-circular rubber foot - I presume that the Sam > should > have four of these in the holes on the side of the casing? > > Does anyone have some spares? Yep, should have four, usually blue but sometimes black. I've no ideas about spares. > My Sam has 512K memory, with piggy-backed RAM chips and a wire which runs > across > and is connected to one of the pins on the internal expansion port (to the > right > of the disk drive). > > Is this normal - as it seems an awkward way of connecting it! No, that's probably some sort of do-it-yourself modification. I've never actually fitted one, but I think the official upgrade is just a tiny daughterboard that you plug in after unscrewing the little panel with copyright information/etc on the bottom to reveal the relevant hole. > Finally, I have an MGT mouse interface for the Sam, and a Comms interface - > what > is the best way of testing these? The mouse interface expects an Atari ST-style serial mouse, so you'll need to get hold of one of those. It came with a demo disk including a mouse-driven version of Flash! and some code to access the mouse from your own BASIC programs. It's not the same thing but you can get the 'Mouse Driver 2.0' disk from http://www.worldofsam.org/node/214 legally, as distribution rights have been granted. A bunch of PD software that supports it is also available. As for the comms interface, I've no ideas specific enough to be helpful.
