Speaker makes a ticking noise, no chimes or video.
I’m trying to get my old 128K Mac up and running. All the boards/caps look good. I do not have the backup battery installed but it is on order. However, when I power it up, the speaker makes a noise like tic, tic, tic over and over and there is no chime or video. Any ideas?
Update (12/16/2021)
Bu iyi bir soru mu?
5 Comments
Are you booting up from a floppy disk?
Andrew S tarafından
I didn't even try putting a disk in yet. I was expecting to see the screen on and the Mac insert disk icon.
Chris Snyder tarafından
@kozchris post some good pictures of the PCB etc. with your QUESTION. This sounds like an issue with the caps, memory etc. as well as possibly a power supply issue. There are a lot of miles on the Mac and I would definitely suggest a total recap on it. Remember, this beast packs a lot of punch on the PCB so be careful when you mess with it. It does create some pretty high voltages.
Adding images to an existing question
oldturkey03 tarafından
I added some pictures. Some rust/dust on the HV transformer area but not seeing any capacitor leaks. Should I expect to see the signs of a capacitor leak? I thought about re-capping, if necessary, but after seeing all the white goo on the caps it seems like it would be a pain. Is the re-capping difficult?
Chris Snyder tarafından
Thanks for the info everyone. Looks like I will need to recap.
Chris Snyder tarafından