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Hi, that's interesting.
I actually got the recommendation to use Keystron or Memory Masters by @ZaneKaminski after I inquired with him about buying some RAM from Garrett's Workshop. Unfortunately GW doesn't have any stock just now and it's probably going to be a little while before they do...
Hi,
Final update on the 25 pin D and PDS connectors.
I received my mouser order today with the correct footprint 25 pin D connectors and the solder pin PDS connectors and I have updated my mouser basket with these items. They are both now fitted to my board and look great! The 25 pin D...
Hi,
I wish I could offer a solution but sadly I've not been able to figure this one out. I've replaced the 8530 SCC chip along with both SN75175 chips and one of the 26LS30 chips. The other 26LS30 seemed to be producing appropriate signals when I checked inputs and outputs using a digital...
I got a Swift S41-20 which cost me £179.99 delivered in the UK. It's got a fairly simple mounting arm which is a bit of an annoyance at times but I'm quite sure I could buy a better arm for it if I wanted to. It comes with a pair of 10x and a pair of 20x fixed focus lenses but I've only ever...
Hi, I'm UK based so probably can't offer any direct help but your question got me to thinking whether it would be economically viable to provide a board rebuild service and at what price it might break even. I think to a degree it will depend on how many donor parts are used, especially SIMM...
I'm not sure there will be enough distance between the two different mounting holes to keep them from becoming a slot.
If not then I think I'd be inclined to adopt the mounting hole spec which @PacificState and I have found from the SIMM sockets we sourced. Especially since it also corresponds...
Further update on the 25 pin D and PDS connectors.
PDS - I've decided to bite the bullet and have ordered mouser part 571-5535098-5 which is hopefully the solder pin version of the press-fit connector I ordered last time. Will update to confirm once received.
25 pin D - It turns out there are...
@daanvdl yes, sort of. Let me take them one at a time as there are some issues to varying degrees.
ADB and Serial - No major issues other than the fact the holes on the PCB for the side support tabs are round and the tabs themselves are flat. This is a bit of a pain but no more so than if you...
@superjer2000 haha, I’d be quite happy to stop my day job and refurbish SE/30 boards instead but I suspect it might be a bad business decision! These things are a labour of love I think, rather than a career prospect! 😅
Re using new connectors, in my case the PDC socket was quite badly corroded...
I also got most parts from mouser using the links in the SE/30 BOM referenced elsewhere in this thread. I created a "Project" in mouser for this but it looks like I can only share a project using an email address. However, I created a "Basket" instead and have shared it via this link:
Mouser...
I recently saw this video on YouTube where they just cut the entire floor out of the socket. It certainly makes it much easier to solder but presumably the socket floor is there to provide mechanical integrity so I worry this might not be a great solution. I prefer the way @robin-fo did it by...
Looking good!
I was very tempted to use PLCC sockets as well but didn't think it would be very easy to solder around the plastic base of the socket. Looks like you managed it though. Did you have to trim away some of the plastic or did it just naturally melt back a bit due to the soldering...
Good to see a few more folks embarking on this journey - it's way more fun than diagnosing broken traces and vias and soldering in bodge wires I can tell you that much! 😎
Some tips I would give on sequence of populating components as follows. Others please chip in if you have better/alternate...
@macintosh2002 I'd strongly suggest looking into ChipQuik low melting point alloy. I've ordered one of these kits and if it works the way I've seen it work in videos online then it should make chip removal much easier. Basically the solder is an alloy of Iridium which is quite expensive hence...
That sounds like a good idea for CPU removal, thanks for the suggestion.
Re the question on solder mask on vias, maybe @Bolle can speak to that but I don't think vias are normally masked which is why on the battery bombed boards the vias get destroyed. I suspect they need to stay open to allow...
Thanks :D
That's correct, it was soldered. Removal was a challenge to say the least. I started by trying my hot air station with lots of flux, thinking that it should just fall out under gravity when the solder flowed. Anyway, I chickened out after I saw the donor PCB start to delaminate and...
Oh wow, I didn't realise nobody else had got a board to boot yet. If I'd known that I would have added a few drum rolls and embellishments to my story! :giggle:
To be honest, since my SIMM sockets have the metal release tabs, you don't need much force to insert and remove SIMMs so the support...
Sorry for the double post but just wanted to say that I just got the board powered up and booting both system 7.1 from the BMOW ROM SIMM and 6.0.8 and 7.5.5 from the SCSI2SD device. I ran a bunch of tests from Snooper and everything seems to be working except the serial and printer ports which...
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