Recent content by se30

Just did a quick search and this discussion while discussing a lot of what you have already covered mentions that the PRAM battery could be an issue. I quickly reviewed the schematics for the plus and I got no clarity on the CLK signal at pin 15. Perhaps someone else can answer that one?

I would double check the recap work. Check to make sure that there are no damaged traces around caps that were replaced. Check for proper polarity placement on your caps as well. If you eject the disk and reboot do you get a '?' floppy icon then? > I found that the resistance between J4...

I just thought I would provide a quick update for anyone who happens upon this post in the future. It turned out to be that the SWIM and the resistor network were both bad. The 77 ohm changed to ~95 ohms after removing the resistor network. I could then at least boot into the SCSI drive and...

Just as an update, I pulled the bourns filter as an attempt to see if it would make any difference and pulled my capacitors. The 5v line is now showing 90ohms to ground. The bourns filter definitely seems fine based on this video. With the bourns filter in I was getting not so good looking...

If you haven't already you might consider getting the board a good thorough wash. I have a Mac SE 30 as well and I can give you pin ohm and voltage readings on the sound chip if you feel that may help.

Looking for some guidance. I have acquired a SE/30 that was sitting in a closet for nearly 25 years. When I first got it, it would simasimac, but cleaning the board of the build up of dust largely resolved boot issues. I was able to boot into the original 40MB SCSI drive. I was also able to...