Relay bypass LED functions backwards

Started by patrick398, April 17, 2020, 08:43:01 AM

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patrick398

Just got some PCBs back and seems i have routed the ins and out for the relay backwards which means the LED now lights when in bypass and not when effect is engaged. I've been thinking about this for a while and i can't see a simple way around this, am i being stupid? Is there a fix that doesn't require trace cutting and jumpers?




patrick398

I've lifted the side of the 2k2 reisistor which goes to ground and instead tied it to +9v, now with the LED flipped it works as it should.
Am i at risk of damaging anything though? I can't see how but i'd rather double check

Cheers

duck_arse

it's a standard config for the 555, so you should be oakie doakie.
" I will say no more "

antonis

#3
Quote from: duck_arse on April 17, 2020, 11:07:32 AM
you should be oakie doakie.

In English, plz..
('cause it's all Greek to me..)
"I'm getting older while being taught all the time" Solon the Athenian..
"I don't mind  being taught all the time but I do mind a lot getting old" Antonis the Thessalonian..

Digital Larry

Digital Larry
Want to quickly design your own effects patches for the Spin FV-1 DSP chip?
https://github.com/HolyCityAudio/SpinCAD-Designer

Ice-9

www.stanleyfx.co.uk

Sanity: doing the same thing over and over again and expecting the same result. Mick Taylor

Please at least have 1 forum post before sending me a PM demanding something.

patrick398


duck_arse

" I will say no more "