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Projects => IC-based Overdrive => Topic started by: snow123 on April 14, 2021, 04:17:39 PM

Title: tc electronic footswitch replacement
Post by: snow123 on April 14, 2021, 04:17:39 PM

ok, so i spilled some water on my beloved tc mojomojo, everything works fine, but the footswitch gets stuck. and its a 2pdt switch and i only have 3pdt switches, and it has pins to connect to the pcb and all of my footswitches use lugs. so i connected 6 solid core wires to 6 out of the 9 lugs to connect it to the mojomojo's pcb. would this work?

Title: Re: tc electronic footswitch replacement
Post by: snow123 on April 14, 2021, 04:28:13 PM

(https://i.postimg.cc/MfGzwWZP/20210414-131646.jpg) (https://postimg.cc/MfGzwWZP)

Title: Re: tc electronic footswitch replacement
Post by: deadastronaut on April 14, 2021, 04:34:19 PM

You probably need to connect your six wires to 2 columns.. vertical

Rather than the 2 rows...horizontal.

So you have a dpdt......

Title: Re: tc electronic footswitch replacement
Post by: antonis on April 14, 2021, 04:46:48 PM

(https://i.imgur.com/ZGNfEfN.jpg)

Title: Re: tc electronic footswitch replacement
Post by: Ice-9 on April 14, 2021, 04:51:35 PM

I would suggest to buy the correct 2pdt footswitch as they are a little smaller in physical size (height) so for the sake of a few quid will make life so much easier to fit . Alpha 2pdt latching. On the other hand if you prefer to fit a 3pdt switch then vertical pin outs are the way.

Title: Re: tc electronic footswitch replacement
Post by: snow123 on April 14, 2021, 04:59:25 PM

I should also add a pic of how the stock switch is on there + how I would install my make-shift footswitch
(https://i.postimg.cc/N5dFnzDf/20210414-135715.jpg) (https://postimg.cc/N5dFnzDf)

(https://i.postimg.cc/0bkrcspB/20210414-135729.jpg) (https://postimg.cc/0bkrcspB)

(https://i.postimg.cc/s1RMGS1y/20210414-135754.jpg) (https://postimg.cc/s1RMGS1y)

Title: Re: tc electronic footswitch replacement
Post by: bluebunny on April 15, 2021, 04:06:03 AM

Do what Mick says: the replacement switch is readily available.  You'll only have grief trying to get that 3PDT with its extensions into place (I'd wager you won't get switch+PCB to fit at all).

Title: Re: tc electronic footswitch replacement
Post by: deadastronaut on April 15, 2021, 04:38:39 AM

+1 to what mick and marc said....(now youve shown the pcb pics)

those switches are readily available with the pcb pins.  8)


solder sucker....and replace with same switch. done.  8)

Title: Re: tc electronic footswitch replacement
Post by: snow123 on April 15, 2021, 03:14:06 PM

well the thing is that i cant really find any 2pdt switches that use those pins. i can only find ones with lugs.

Title: Re: tc electronic footswitch replacement
Post by: bluebunny on April 15, 2021, 04:23:31 PM

What are the pin measurements?  It's an Alpha switch in the photo.  Looks like the ones you can get at Tayda or Small Bear, among other places.

Title: Re: tc electronic footswitch replacement
Post by: snow123 on April 15, 2021, 11:18:21 PM

lmao the solder connecting the footswitch to the pcb wont melt

Title: Re: tc electronic footswitch replacement
Post by: deadastronaut on April 19, 2021, 07:28:24 AM

this sounds like a paradox, but put your solder onto it, then suck....

it'll heat up better and flow.

Title: Re: tc electronic footswitch replacement
Post by: Ice-9 on April 19, 2021, 05:18:47 PM

As Rob said, Reflow new solder onto the pins before trying to de-solder. The solder on the original will be lead free solder and needs a higher temp to reflow. If you put new solder on using leaded solder then it is easier to remove the solder at the next step.

I know it sounds counter productive to add solder to remove solder but this is the way to do it.

Removing a footswitch without damaging the PCB can be tricky if you have not done it before.