2 pedals in one box with order switch

[gennyespo85]

hello everyone
I have a problem with this pedal made by me using kicad as the program to create it. I inserted 2 pedal effects schemes into the program, a fuzz face and a rangemaster boost and a switch for the A/B - B/A position order and it doesn't work for me, that is, part or nothing of it works if I activate the foot switches or the 4pdt. I'm definitely doing something wrong with the 4pdt connection and I can't understand it. Could any of you more experienced people help me solve the problem? I'm going crazy, I know that for some of you it is a trivial thing but for me it has become a problem. I attach photos of the project I created, can you modify it if there is any error? thanks everyone

[antonis]

Hi & Welcome..

As it is (switch UP), order is: IN -> Fuzz Face - > Rangemaster -> OUT
With switch DOWN, order is IN -> OUT (with both effects In & Out shorted)

There is no order alteration, just Fuzz Face + Rangermaster ON or OFF..

[ElectricDruid]

The 4PDT wiring looks ok to me.

With the switch in the position shown, the signal goes:
IN_JACK -> IN_A_FUZZ -> OUT_A_FUZZ -> IN_B_RANG -> OUT_B_RANG -> OUT_JACK

With the switch in the other position, the signal goes:
IN_JACK -> IN_B_RANG -> OUT_B_RANG -> IN_A_FUZZ -> OUT_A_FUZZ -> OUT_JACK

The 3PDT wiring is ok, but with a boost and a fuzz, you should maybe think about adopting a "grounded input" switching scheme to avoid noise when the effects are bypassed. The way you have it, the inputs are floating when they're not switched in, which leaves them vunerable to noise pickup.

Honestly, I don't see anything wrong with it. Of course, that's the schematic. You can screw it up in all kinds of ways when you wire it up!!

[antonis]

With the switch in the other position, the signal goes:
IN_JACK -> IN_B_RANG -> OUT_B_RANG -> IN_A_FUZZ -> OUT_A_FUZZ -> OUT_JACK

IN_B_RANGE is shorted to OUT_B_RANGE, as well as IN_A_FUZZ to OUT_A_FUZZ, leaving FX1 and FX2 INs & OUTs out of circuit..

[Mark Hammer]

I regularly include order-flipped switches into my 2-in-1 builds, and find the best approach is to treat the order flipper as if the effects themselves weren't there.  That is, you wire it up as something that flips the order of the stompswitches.  Once those are wired up, then one can simply connect the effect circuit boards to the stompswitches for engaging or bypassing. 

[ElectricDruid]

IN_B_RANGE is shorted to OUT_B_RANGE, as well as IN_A_FUZZ to OUT_A_FUZZ, leaving FX1 and FX2 INs & OUTs out of circuit..

Well, if the OP says it doesn't work, there must be *something* wrong with it, but I'm still not seeing it. Here's the switched condition as I see it:

[antonis]

I don't want to insist but this is the way I see it: 

[ElectricDruid]

Well, YEAH! That's with both pedals bypassed! It's not likely to do anything like that, is it?!?

I think we need the OP to give us some more information about what works and what doesn't.

[bluelagoon]

I am with Electric Druid, the 4pdt bypass on the schematic looks good to me for alternating order, cant see the issue that antonis is referring, even in both pedals bypassed.

IN_B_RANGE is shorted to OUT_B_RANGE, as well as IN_A_FUZZ to OUT_A_FUZZ, leaving FX1 and FX2 INs & OUTs out of circuit..

Isnt after all IN_B_RANGE shorted to OUT_B_RANGE and IN_A_FUZZ to OUT_A_FUZZ -- same as having them both bypassed
and ultimately no effects on, just clean bypass signal ??

[GGBB]

I am with Electric Druid, the 4pdt bypass on the schematic looks good to me for alternating order, cant see the issue that antonis is referring, even in both pedals bypassed.

Add my vote.

I think I have created a diagram for just about everything at this point.

[antonis]

IN_B_RANGE is shorted to OUT_B_RANGE, as well as IN_A_FUZZ to OUT_A_FUZZ, leaving FX1 and FX2 INs & OUTs out of circuit..

Isnt after all IN_B_RANGE shorted to OUT_B_RANGE and IN_A_FUZZ to OUT_A_FUZZ -- same as having them both bypassed
and ultimately no effects on, just clean bypass signal ??

Of course but OP wants to change effects order..!!
(i.e. FF -> RB or RB -> FF ..)

[bluelagoon]

Yeah but you can only change effect order, when the effects are not in bypass mode.

[ElectricDruid]

This is getting ridiculous. Let's try a quick summary.

There are three switches on the original circuit: A 3PDT in/out bypass for each effect, and a 4PDT order switcher.

Whether you have the effects bypassed or not is irrelevant to the order switching. Like Mark said, you can design it as if you're switching the order of two 3PDTs - you don't care whether they're connecting straight-through or via an effect circuit.

The order switching on the schematic seems to be ok. The 3PDT bypass switching on the schematic seems to be ok. I'd prefer to see a grounded-input wiring with two gain-based effects, but that's a preference.

What I'm not clear on is what exactly the problem is. OP says "it doesn't work", but we haven't seen the build (which might not match the schematic) and we don't know exactly which bit doesn't work.

[antonis]

This is getting ridiculous.

   

I think OP just made fun with us..

[ElectricDruid]

   

I think OP just made fun with us..

Yeah, maybe so!

I did wonder whether it was robospam (first post, slightly odd english) but it provides more information that the usual spamposting, so I gave it the benefit of the doubt. Perhaps I've been suckered by the latest version of the spam posting software?

[bluelagoon]

Either spam, or legitimate potentially wired up incorrect not matching the schematic.