Hi. New guy here. I'm an oldtimer...cut my teeth on tubes and ended up as a 2-way radio and power plant tech. Retired at that point and didn't keep up much with the digital age. I have a compaq fp5315 computer monitor with an audio problem....either lots of noise when volume is normal, or at times no noise, but very low volume. Can't find any scematics and don't want to tear it apart until I know a little more about where to look. Is the audio board in the monitor or in the computer tower? The connecting cord checks ok and the usual plug-wiggling doesn't make any difference. If the audio board is in the tower, is the audio coming from the tower a normal low-impedance speaker feed or like a 600 ohm? Don't think it's just a simple speaker problembecause it has two speakers and both sound the same and the odds are that both wouldn't be bad.