Recent content by Elemenoh

Those seem like very generous terms for the client. $60/hr seems to me like this person is undervaluing their work but very curious what others think.

I just fed in the data sheet for that PLD and asked Claude what it would need to reverse it. Here’s what it replied with: Perfect! Thank you for sharing the datasheet for the PLDC20G10/PLDC20G10B. This is exactly what I needed to help reverse engineer this device. Based on the documentation, I...

For Claude I just use the regular app. You can upload a schematic into the conversation and then ask questions about it. For instance, I had a Lisa I had troubleshot down to a transistor on the analog video board, but I didn't quite understand why it resulted in the symptom it was experiencing...

IMO this isn't a common service because most people in your situation wouldn't want to pay for the amount of skilled labor to make it happen. This is very napkin-mathy but gives you an idea of what's involved. ## Time Breakdown - Initial triage: 30 minutes - Replace electrolytic capacitors...

Interested to see where this goes. I've been using Claude to analyze schematics, then provide symptoms for it to troubleshoot down to the component. It's been very helpful so far.

Not that specific site but I’ve been researching substitutes. My plan is to get a more modern part with a B-C-E pinout and just jumper and insulate the emitter.

This Lisa had horizontal video smearing that didn't improve after recap of the video board or power supply. The culprit ended up being Q2, a D40N2 transistor in the contrast circuit. Fortunately I had a parts Lisa I was able to get another from which resolved the problem. Unfortunately, D40N2...

Tantalum caps fail short. If you installed them all backwards and some failed, they'd likely fail short and those caps you installed on the 5V rail would short it to ground. Or the other possibility I mentioned where you might have shorted a cap to an exposed trace somewhere. Good luck patching...

Occam's razor would indicate you probably introduced a short somewhere else when you replaced the caps. I'd carefully start undoing your work until the short is cleared. I'm guessing you have a trace running underneath one of the caps that was exposed and then shorted to ground during your...

Yeah if you pay a shop it’s advantageous to have them do as large of a batch of parts as possible. I did a bunch of SE/30 parts along with a full set of Lisa frame parts. It was also about $100 or so. But for the small MLB part you could do it yourself with a little piece of nickel or zinc you...

If you really want to make it nice, and keep it conductive, you could electroplate it. I had some SE frame parts done in zinc and this example in nickel. I sent them to a local shop, but it's definitely doable DIY too, especially for a smaller part like the MLB frame.

Just because they aren’t leaking doesn’t mean they’re in spec. Do you have access to an ESR meter to test them? What about that cap that looks like a SMD part on the power board. Is that really a tantalum or is it one of those sneaky electrolytics like those used in the newton? Other than...

It could be a lot of things, but it seems like a decent possibility something didn't get put back together correctly or was damaged on take-apart/reassembly. I'm sure you did already but can you confirm the video cable coming from the analog board was plugged into the logic board? Also, you...

Sata to Molex win a nice binhex?

Or maybe the contrast slider wasn't mated properly before. Regardless, that's great you got it working. Congrats!