exxos's Atari, Amiga & retro forum

exxos wrote: 17 Sep 2021 22:12 Pretty much everyone on here has never run their machine with the shielding in place. I certainly haven't. In fact the whole remake project was developed that way. Using the shielding cannot do any harm at least, but it should not otherwise have any great effect on anything.

Guessed so beforehand, just wanted to rule this problem out! :D

exxos wrote: 17 Sep 2021 22:12 If there was a bad connection on the audio circuit somewhere, could be very susceptible to RF noise. But otherwise it should be virtually silent noise wise.

I didn't know that a bad connection can make a circuit more susceptible to RF noise, learned something now, thank you! :)

Will check all connections audio-wise and on the YM, I hope I will find the culprit :D

CeRiAl wrote: 18 Sep 2021 00:26 I didn't know that a bad connection can make a circuit more susceptible to RF noise, learned something now, thank you! :)

Yep. CMOS type inputs you can turn things on and off by moving your hand towards such input. The whole motherboard is a RF noise generator. It doesn't take much for all that noise to couple to a floating input, but as to if that is your problem or not I don't know. Maybe there is a bad connection somewhere giving you lower audio volume than normal.

I would just do "finger on board" tests. Press down on everything and see if the noise changes. It may give a clue.