D-50 Dude
Active member
Hello! Let me get down to business. I purchased an “untested” Mac IIcx from eBay in filthy shape. It cleaned up nicely (still needs a small bit of retrobrite). At first I thought it wasn’t working (the green power light was on but there was no chime (or so I thought) but it turns that it’s just extremely quiet (I had to put my ear up to the speaker to hear it). Since I don’t have a DB-15 to VGA adapter yet, I can’t connect a monitor yet. I’m already well aware of the fact that the logic board needs re-capped (my guess is that’s what’s causing the quiet audio) but at least I know it’s “working”.
Here’s where I need help. While it does work, the power supply is making a very irritating high pitched sound (higher than that of a CRT) and my guess is that isn’t normal. I’m aware of the dangers of working on power supplies. If it helps the model is an Astec AA15830. I know that the IIcx shipped with different power supply models.
Here’s where I need help. While it does work, the power supply is making a very irritating high pitched sound (higher than that of a CRT) and my guess is that isn’t normal. I’m aware of the dangers of working on power supplies. If it helps the model is an Astec AA15830. I know that the IIcx shipped with different power supply models.