Re: Mictester's CMOS Relay Bypass Module

Posted by purity on
URL: http://guitar-fx-layouts.238.s1.nabble.com/Mictester-s-CMOS-Relay-Bypass-Module-tp19021p45371.html

Just wanted to add that there may be some errors with this layout. The unused inverter gates (on the right side of the IC) have inputs and outputs tied together. Only the inputs should be tied to ground or supply - the links under the IC need to be cut so the outputs dont feed back to the inputs.
On my build I remember I made alternating cuts to the links as shown in the layout. I think the ground connections are still ok, as the thing worked afterwards. The top right pin is tied to supply, the one below an input (tied to gnd) and the one below its output (and linked, so cut it), and so on. Follow that to find out which links connect outputs to their own inputs and cut them.