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Not sure what sort of diagram you mean, but I don’t think there is such a thing out there. If you mean just for the cells then it’s pretty obvious how to wire things up once you get the battery pack open. :) Be aware that others have tried to rebuild this battery and the BMS always gets bricked...

Sure, my 500 series machines are very prized, so am interested in their upkeep! I'm shocked that your almost-brand new cells leaked. Is leaving them discharged the likely cause?

I had the same issue, but used a T48 to program it.

I had a rebuilt battery that kicked the can, too. Turns out the EMM board just died. I moved the battery pack into another donor battery shell.

And IIsi units.

Reading into this a bit more, you've shown us that you're trying to install System 7.1 and are not seeing any mounted partitions, but this in itself doesn't mean the drive isn't being detected. Scanning for disks in a formatting utility such as Apple HD SC Setup is the crucial first step here...

I’ve had an issue like this. Couple of things to check - solder work around the GLUE chip (possible poor connection), and sagging 5V line (possibly causing a twitching reset line). When you come to recap the analog board, check all the sockets for dry joints on their pins. Great work so far -...

Swapped out the audio amp and the sound is fixed! This board is REPAIRED.

Progress with my spare 840AV board. I discovered why it wasn’t outputting video. It turns out the DAC (or what I think must be the DAC) wasn’t receiving a required -5V input. I traced this back to the voltage regulator that was instead outputting 0.65V. Yeah, that’s not going to work. So I...

This is incredible work, including the video. You haven’t mentioned a rationale for the project, but I’m assuming it’s to have a nicer typing feel? Maybe that plus a bit of proof of concept?

Some dumps here do. One I went to puts certain items aside and then takes them to an outlet store. However, I wasn’t able to purchase an item of furniture I wanted on location as it ‘had to go to the store’. I Googled a bit more on this topic. One response on a Reddit thread as to why they...

It’s health and safety, isn’t it?

My SE/30 sometimes makes this Sad Mac tone (in this case due to a poorly seated SIMM) – it's not often heard and the first half sounds a bit like a Game Boy. I wonder what it means and what fault causes it to play that specific tone.

Well done. I hate that UK recycling centres don’t let you take stuff away. How did you manage, just quickly whilst nobody was looking?

Apple used those Sony units as stock drives in the SE/30 so it should just work with the Apple HD SC setup utility. If it has a sticker saying HD40 (or just ‘40’ inside an Apple logo) on the edge of the casing, that would confirm it. One thing to check is that is has the termination resistor...

They will 100% need changing, although they aren’t likely to be the direct cause of your hard drive issue.

If this is what I think it is, then wow!

Nice!!!

There's definitely value in an 8600. Great machines. Hope it can be restored and passed to someone who enjoys it!

Oh wow, I didn’t know this was a thing - I’ve used these kind of adapters before and currently have one in my Beige G3 DT. Either the risk is overstated or Ive just been lucky.