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Very interesting items. In the right environment, they will look great.

Love that! Very nice to hear about the comprehensive documentation and in exactly the right hands. I got lucky with second hand modern kit that can handle oldskool jobs like 2708

Cool. I have often looked at buying one, but it seems like a quantum leap, since I have no clue about them

The manual is quite large but very informative they even include the schematics. The only minus s lack of modern software available so I had to code my own so I can transfer files to and from the programmer(the protocols are also included the manual).

Ooh nice. I hope it has instructions...

I just go for a full old school programmer for an old scroll job(I also use this for programming mars mechs).

My god i remember my parents having one of these at home in the 70s but it was purely electro-mechanical, bloody 48v relays and cam switches galore, I remember the noises it made and loved that 70s pub smell you got every time you opened the back door.🤣 (Edit, just remembered it was actually called Housey Housey).

Fine as they are just going to be used in front of machines in my man cave.

😅😅 very nice Ron, how has that gone down with the Mrs?

I had thought about building one of those. Never got round to it though...

Didn't realise there were 4 supply voltages needed. Not many pins left on the chip with that lot connected 😆 I'd think twice before putting a rom in something I'd knocked up... Especially if it was the last one known & no backups existing... Then there is the software side and multiple manufacturers of 2708 Looks like 2708 have got expensive to come by

Wow. That's a lot of £s for an adaptor. I did build an Arduino shield version, which initially read eproms ok, but when I tried to burn some, they literally burned 😳. I'm guessing that I got something wrong.... An easy to build programmer for 2704 / 2708 / TMS2716 / MCM68764 / MCM68766 EPROMs – Matt's Tech Pages https://share.google/y1qxj95mkDGOs1Bk1

No worries. 2708 are an oddball to burn & most modern programmers won't do them... And the ones that do need an extra board. Bloomin hec that's doubled in price https://uk.dataman.com/products/module-2708?srsltid=AfmBOooYeXc0uQvN1mGMw2gPi9a6AWTNEYT25lHaGEIACYTqJlNvPFXW Plus need the programmer like a Dataman Pro40 to plug it in to too... Sure @superbankknows what he's doing & got the kit though 👍

Thanks Louie. Many thanks for the offer. Very much appreciated 🙂 Superbank has kindly offered to do this for me. If he has any problems, I would love to take up your kind offer... Cheers, Pete

ROMs are about as it's emulated https://www.desertislandfruits.com/forum/index.php?/files/file/1246-nudge-double-up/ that's the had bit covered I've got the right kit to burn SRU roms and perhaps have some good spare 2708 too. Looks like I ripped a set 😁 https://www.fruitemu.co.uk/ib/topic/19629-sru-unknown-rom-set/#comment-305933

Working !! The new board arrived and when I took the old board out I realised one of the new chips was only connected one side !!! Put them in correctly and all working and know sec fault too !

Hi , ive just done what you said but its still not made any difference

Where from? Is it guaranteed working order? Also, have you tried this.... Turn the machine off Set switch 8 on the right hand side DIL switch to ON Turn the machine on and leave it for a few minutes Turn the machine back off Set switch 8 back to OFF Turn the machine back on That will clear the RAM and if you're lucky it might boot up... Finally, make sure jumpers J1, J2 and J4 are set the same as they were on the original board.

Ok , new board then , got one coming hopefully that will sort it

It's resetting every time the red light comes on.

Just a little update to anyone following this , I’ve replaced the rom chips and thanks to TTX a new eprom and if you look at the video this is what I’m getting now . does anyone know what the green light on and the flashing red might mean please ??? Thank you converted_11.mp4

Yeah i think the rules are a certain number of (relevant) posts and/or a donation. Welcome by the way 😊

Try changing the theme at the bottom of the page to "New Default", it is a known fault that can cause that issue.

To those people who have replied to my earlier post, sorry I cannot reply or post anything because I am getting a constant 'some thing went wrong' error EX0 I have tried to report it to a Moderator but getting absolutely no response.