Clipping Led working in reverse?

Hardware questions and issues with the FV-1

Moderator: frank

Post Reply
forrestbaer
Posts: 2
Joined: Wed Aug 25, 2021 1:50 pm

Clipping Led working in reverse?

Post by forrestbaer »

Hey there,

I've had a board built using the following schematic, and everything is working great, CV control, pot controls, 8 step switch, everything sounds good.. EXCEPT the clipping led which seems to come on when it should be off, and off when it should be on.. So I fire it up, and without any inputs or outputs, on any program, the LED is on.. If I feed it a too-hot signal like an 8v AC square wave the led will go out. I'm attaching the schematic, does anyone have any ideas? Appreciate all the help I can get.

This is a eurorack module (+12V/-12V) that backpacks the FV-1 breakout from electrosmith which is basically the "typical application" circuit from the FV-1 datasheet.

Image
frank
Posts: 1244
Joined: Wed Oct 19, 2005 12:26 pm
Contact:

Re: Clipping Led working in reverse?

Post by frank »

Clip LED is backwards and should be connected to +3.3V not ground. See FV-1 datasheet schematic.
Frank Thomson
Experimental Noize
forrestbaer
Posts: 2
Joined: Wed Aug 25, 2021 1:50 pm

Re: Clipping Led working in reverse?

Post by forrestbaer »

Oh wow, of course it is!

Thank you, I don't know why I assumed.. Lesson for today.. Did you check the data sheet? :oops:

Thanks again. :mrgreen:
Post Reply