Recent content by SparrowRat

That's an original, un-upgraded 128k.

The R57 pot looks damaged, according to the schematics it's the contrast pot, it could be changing over time as a result of heat or something else.

I would check for shorts, It looks like the yellow pin (I don't know the pinout of the Mac Plus harness but yellow is usually 12v) was drawing too much power

Sparks that didn't last long because you turned it off quickly.

I didn't really look at the benchmarks for this one released (I was focused on how small it is :D) but looking now I have to concede. This is a really good computer! If you are doing anything but gaming, (and you don't hate MacOS) this is a no-brainer.

I'm not saying they aren't good computers, I'm saying Apple Silicon laptops are the best laptops available on the market, and the desktops are too expensive for the performance they get.

I think Apple Silicon is really designed for laptops, which it excels at. Not very good for desktops, unless electricity is REALLY expensive where you live.

If I'm remembering correctly, the sound chip is used the generate the reset signal.

Should be able to scrape back solder mask and solder to the traces

You shouldn't need to scrape back solder mask on a working SE/30 - you could just put your meter probe on a via.

Thank you both so much!

I did see that thread and the page on MacDat. The thread has a far away and low-resolution photo of one side of the cable (and every connection on that side looks the same between the cables) and the MacDat page has no photos and is for the panels themselves anyway.

Hey all, Last year I bought a 540 on ebay, with a display damaged from vinegar syndrome. I bought a replacement 540c display, (thinking I may as well upgrade to color, as well as 540s being a bit rarer than the other 5xx models). I then realized that the interconnect to display cable must match...

Hey, you said you bought some parts from UTSource. I've been thinking about getting some parts for my apple 1 replica from them (am2804PC shift registers). What is your experience with them?

My full setup is a iMac G3 333 Rev C. (333 mhz), 128GB SSD with IDE/SATA adapter, 512MB ram. I also have a non-working eMac that I haven't looked at at all (got it from the VCF Midwest free pile).