Hello everyone! This is my first post here, so please excuse me if I trip and stumble, I'm not the type to social-media.
However, I am proud to be given the opportunity to add a Macintosh II to my vintage Mac family. Repair and upgrade started immediately. The Mac II would turn on, PSU would click, and turn off. A common occurrence it seems.
-
1. Capacitors have been replaced with tantalum caps of equal value. (embarrassing solder job, don't look!)
2. Some more tricky axial capacitors that I thought would be culprit have been replaced. (Still no dice.)
3. PSU measurements have been taken, all outputs seem as they should, caps looked okay, too.
-
Things that have changed since I replaced the capacitors, is that now the speaker clicks when powered on! Before the re-cap, it wouldn't.
I've taken my multimeter to many different caps, chips, traces. I've begun to pull my own hair out, is there anything obvious I'm missing? Incredibly nervous, asking for help here. But I suppose that's how desperate I've become as for wanting to get this thing singing and dancing again. Any advice is greatly appreciated.
Thank you.
However, I am proud to be given the opportunity to add a Macintosh II to my vintage Mac family. Repair and upgrade started immediately. The Mac II would turn on, PSU would click, and turn off. A common occurrence it seems.
-
1. Capacitors have been replaced with tantalum caps of equal value. (embarrassing solder job, don't look!)
2. Some more tricky axial capacitors that I thought would be culprit have been replaced. (Still no dice.)
3. PSU measurements have been taken, all outputs seem as they should, caps looked okay, too.
-
Things that have changed since I replaced the capacitors, is that now the speaker clicks when powered on! Before the re-cap, it wouldn't.
I've taken my multimeter to many different caps, chips, traces. I've begun to pull my own hair out, is there anything obvious I'm missing? Incredibly nervous, asking for help here. But I suppose that's how desperate I've become as for wanting to get this thing singing and dancing again. Any advice is greatly appreciated.
Thank you.
