sound

  1. P

    Apple ][ Card Audio Characteristics

    Good afternoon folks! Does anyone have... 1. An LC family Macintosh like the LC 475 or older... 2. An Apple II LC PDS card 3. An oscilloscope 4. Some spare time! I'm curious to find out about the electrical characteristics of the audio output from the card. It comes out of the card on Pin A1...
  2. B

    SE/30 sound issue

    Hi, I noticed that my Mac SE/30 doesn't play any sound. Here are the tests I carried: Checked the control panel to set the volume to max Managed to get the built-in speaker to work when connecting it to a different Mac SE When I use the audio output by connecting speakers or headphones, I can...
  3. Mac84

    A tip about sound on the Performa / LC 575 (and similar systems)

    I wanted to share a quick tip about the sound chip on the Performa / LC 575 and similar Macs. We all know that leaking caps can kill these sound chips. Of course this could also eat away traces on the board and make the sound only partially work. I had an interesting scenario with a client's...