Brett's STE - Repair thread

[rubber_jonnie]

Well that's a start. The original ROMs work just fine, and after some minor repairs to the switcher (2 pins were broken and the rest had some solder debris) that works too. 😁

[BrettRogersUK]

Well that's a start. The original ROMs work just fine, and after some minor repairs to the switcher (2 pins were broken and the rest had some solder debris) that works too. 😁

I've just realised, I didn't send the switch over that I had connected to the switcher to put in the back of the case so I can switch it between each version. Doh!😳😳😳😳

[rubber_jonnie]

Well that's a start. The original ROMs work just fine, and after some minor repairs to the switcher (2 pins were broken and the rest had some solder debris) that works too. 😁

I've just realised, I didn't send the switch over that I had connected to the switcher to put in the back of the case so I can switch it between each version. Doh!😳😳😳😳

Not a problem, I've fitted a 2 pin header to the switcher to allow me to jumper it and test, and it's fine in both 1.62 and 2.06 :) Let me know if you want the header removing before I send it back, but you can connect the switch to it directly.

I'm starting repairs this afternoon, fingers crossed I'll get a good run at it. With @sporniket 's schematic and my working machine to hand, I should be able to figure it out.

I think I'll likely go with @stephen_usher 's idea of fitting the sockets and rebuilding one at a time. Luckily the 5v and GND are all intact, so I know the ROMS will at least have power.

It was lucky too that the end pins on the switcher were the damaged ones, as they were nice and easy to replace.

[rubber_jonnie]

So, the work has been going nicely, I have installed the sockets and repaired the links between the address lines and some of the other pins.

IMG_20220115_154719.jpg

I've checked some of the data lines and need to finish checking those before I review the address lines and confirm if any need reconnecting to other places, but taking a soldering break for a moment

[Badwolf]

So, the work has been going nicely, I have installed the sockets

I don't recognise what's going on here. It doesn't look like any repair I've ever done. I can only see neat and tidy wires. Very strange.

BW

:lol:

[rubber_jonnie]

So, the work has been going nicely, I have installed the sockets

I don't recognise what's going on here. It doesn't look like any repair I've ever done. I can only see neat and tidy wires. Very strange.

BW

:lol:

:lol: :lol: :lol:

[rubber_jonnie]

OK, time to stop for the day.

I think I made reasonable progress, here's the patient:

IMG_20220115_170449.jpg

And here's the progress:

IMG_20220115_170407__01.jpg

Every item crossed out is good in the top and bottom socket, so a bit more checking to see that everything is connected as per the schematics. I know at least one address line isn't.

More to do!

[exxos]

Dr Jonnie at work :2k2: we need a new emoji :lol: :geek:

[rubber_jonnie]

Dr Jonnie at work :2k2: we need a new emoji :lol: :geek:

We do indeed!! Make it your task for the weekend :)

[stephen_usher]

Those are very chunky wires. :-)

I usually use wire wrap wire as it's only "low speed" signalling.