Thanks for the video.
We hear the digitalsound all the time. This means, either some digital signal is influencing the outputsignal all the time. This means, either a part in the output path, or a general fault in the supply. It could be the 4053's, which switch between main out and alt out. And also it could be a missing ground somewhere.
I'd check with a scope, whether the signal appears on the supply voltages on various places.
Florian
Am 13.07.19 um 08:55 schrieb sndgroom@... [chromapolaris]:
We hear the digitalsound all the time. This means, either some digital signal is influencing the outputsignal all the time. This means, either a part in the output path, or a general fault in the supply. It could be the 4053's, which switch between main out and alt out. And also it could be a missing ground somewhere.
I'd check with a scope, whether the signal appears on the supply voltages on various places.
Florian
Am 13.07.19 um 08:55 schrieb sndgroom@... [chromapolaris]:
Yes, it seems strange such a dramatic change only by moving a bit a few chips. I double checked and their legs are OK and correctly placed into their slots. I'll try checking with more attention the power supply, but measuring yesterday around the ICs, all looked like OK.
Thank you! :)