I purchased a Mac plus online from someone for a few bucks because it wasn’t working, so I decided to repair it myself plus it would be a great opportunity to learn about computers since I am pursuing in that field. I am having trouble with it.
Symptoms:
At startup the chime sound comes on, but I get a sad mac icon with a checksum of 0101A0 with some morse code on the bottom.
Steps I took to try and solve the issue:
I looked it up and it’s a ROM test failure.
I tried resoldered the ROM sockets, but with no avail.
I also tried replacing the simms with new ones, still didn't work.