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  1. namprin

    Performa 475 audio issue

    Well, just so I don't do anything too terribly stupid, I want to verify. The actual sound chip is the one in U30, correct? I am thinking of removing it with my hot air station and making sure it is clean under it, and then soldering it back into place. If that doesn't work, does anyone know of...
  2. namprin

    Performa 475 audio issue

    So I bridged those pins by soldering wires between them. Behavior is the same when listening to the speaker. There is an initial POP sound, and then nothing. If plugged in to headphones, it now sounds exactly like it did when I was pressing my finger to the pins for the headphone jack on the...
  3. namprin

    Performa 475 audio issue

    I wonder what would happen if I removed the headphone connector completely? Would the internal speaker still work (if the issue was the jack)?
  4. namprin

    Performa 475 audio issue

    No such thing as a silly question for something like this. In my experience, the fix is often a simple thing that has been overlooked. Yes, I am sure the speaker works. I have tried the one in the machine, as well as a test speaker that came out of a dead SE/30. That speaker works as expected...
  5. namprin

    Performa 475 audio issue

    Well, I now have what is most likely the cleanest motherboard in my house :) Still having the same issue that it was having from the beginning, however. I have found that, if I press against the underside of the headphone jack with my finger, while a pair of headphones are connected, the boot...
  6. namprin

    Performa 475 audio issue

    Awesome to think you had one of these back in '95. I think I was rocking a 6100 back then. I am currently giving the motherboard another bath in alcohol, as per Drake's suggestion (can never be too clean), so I will have to wait to test until it is completely dried out. I had tried to do PRAM...
  7. namprin

    Performa 475 audio issue

    I'm currently working on refurbishing a Performa 475, and have run into an issue. Before recapping the machine, it would boot to the desktop, but it would not make a boot chime. I went into Sound control panel, and after turning the volume up to max, I could faintly hear some of the louder...