Author Topic: Pot match?  (Read 359 times)

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Offline harps

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Pot match?
« on: August 22, 2018, 01:19:41 am »
hello

I need to replace a few pots on a Roland td-12 module circuit board,
but i can not open the unit yet until i know it is a likely possibility that i may find a part that may work.

I attach an image of the pots that need to be replaced, which I found online,
also a picture of a pot (Alps RK12L12) that might fit . and a bourns PTV112-4420A. they are the only ones that look similar.

I wonder does anyone know if this type of pot is a standard part, where the footprint is always the same?

thanks for any help you may offer.
« Last Edit: August 22, 2018, 02:40:29 am by harps »
 

Offline floobydust

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Re: Pot match?
« Reply #1 on: August 22, 2018, 06:49:16 am »
I would say it's a Panasonic EVJ-Y dual potentiometer 12mm. Pic matches. Roland sticks with fellow Japanese manufacturers.

They are quite popular, but Digikey shows them as obsolete (EVJ-Y, EVJ-C) with some stock still, Mouser has them too.

You just have to find the taper (linear or logarithmic) and ohms value, and if there is a center-detent or not. Some are metal bushing, or plastic with sleeve, or no sleeve.
 

Offline harps

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Re: Pot match?
« Reply #2 on: August 22, 2018, 07:10:54 am »
Wow, thanks so much. i didn’t see these ones  :-+

that is great, i shall try those out.

thank you so much : )

Edit digikey = Bourns PTV112-4420A-B103-ND  worked fine.

not as liquid smooth to the turn/feel as a panasonic , but the footprint and pins are pretty much identical also linear 10k.
« Last Edit: September 01, 2018, 09:48:31 pm by harps »
 


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