Tatung Computer Forum

I've noticed on some of my Einsteins that when pressing keys it will produce varying tones through the speaker depending on which key is pressed.

I know that the sound and keyboard are both handled by the AY-3-8910 but honestly so far I've done zero investigation, just wondered if anyone else had seen or fixed this?

Bad AY chip? Dodgy caps? No idea

Mine does that on one of them. It has been fully recapped and had a new AY chip as mine was dodgy. It still does it.

It makes different noises if I press and hold a key.