Ensoniq ESQ1 - No Sound / Display Problem

Hi there,

My Ensoniq ESQ1 stopped outputting sound and the screen no longer fully powers on. I replaced the battery in 2016 so I suspect that the battery is still fine. I’ve included a picture of the screen below. If I leave the keyboard on for a bit, the green blocks on the screen slowly start to fade to black. Was hoping that someone could point me in the right direction.

Thank you!

check all sections voltages and fuse.

1 Like

Forgot to say in the original post that the fuse is fine. Thanks for the suggestion. I’m pretty green when it comes to electrical stuff so I will do some research to make the necessary tests.

take a look at display issues on you tube bradthx and other guys is the psu capacitors the original? if yes those guys are going to clarify some of those issues from simply reseating a removable eprom chip with a contact to be clean. good luck

Did you ever figure this out? My SD-1 just started doing the EXACT same thing out of nowhere.