need help to know what is the ohm of this switch

[tonytiger]

hi,guys.

this is a volume pot inside of a tc-helicon voicelive touch 2....'ve been trying to find a diagram but did not have any luck....and nobody can tell me what switch i need to replace the original one....so far i tryed a P110KV1-1F15BR100K(100 ohm)
from digi-key and i need to put it at 3/4 before starting to have volume.... there is no other numbers on this switch other that the one you see on top...can someone tell me what im missing or what other switch i could try.thank you.

[Offscreen6]

Re: need help to know what is the ohm of this switch

You can probably find the ohms by using a multimeter.

Other than that, you could find a new switch by looking up the specific device the volume pot goes to on a replacement parts site.

[R_J]

Re: need help to know what is the ohm of this switch

Check the resistance across the two outside connections, then measure the size of the control and shaft, It looks like a 8mm or 10mm pot. If the pot directly controls the audio signal you will need a audio taper pot.
The pot P110KV1-1F15BR100K is a 100KΩ not 100Ω

[Khron]

Re: need help to know what is the ohm of this switch

Those markings look a lot like "SHC2K". "SH" might have something to do with the series or brand, but "C2K" would indicate a C-taper (reverse-logarithmic, anti-logarithmic) 2Kohm potentiometer.

C-taper pots are often used in the gain adjust of mic preamps.

[dentheman2]

Re: need help to know what is the ohm of this switch

hi Tony,

find out anything?

Mine is busted as well (girl I bought it from did not mention it, thought I had a software glitch), year later aI opened it up, completely busted...

[dentheman2]

Re: need help to know what is the ohm of this switch

I put in a request at Music Tribe to see if they have a spare.

[Khron]

Re: need help to know what is the ohm of this switch

I put in a request at Music Tribe to see if they have a spare.

Good luck with that

In the mean time...

https://www.mouser.fi/ProductDetail/...FQw94NWw%3D%3D

[dentheman2]

Re: need help to know what is the ohm of this switch

That is the one that works?!

As in you got it working?

Cause I wil order it right now!

[Khron]

Re: need help to know what is the ohm of this switch

Check the resistance across the two outside connections

Also, see if the pinout matches the one in the datasheet for the potentiometer i linked. I can't see in the photos you posted, if yours has 3 or 4 pins, even.

That is the one that works?!

As in you got it working?

The one i linked is a 2Kohm reverse-audio / reverse-logarithmic / anti-logarithmic taper / C-taper potentiometer, which should(?) match the one that seems to be faulty in your unit. So it should work, as long as you can confirm the end-to-end resistance in yours is indeed 2Kohm, and compare the dimensions with the drawings in the datasheet.

I never "got it working", because i don't think i've ever touched or even seen with my own eyes a VoiceLive Touch 2.

[dentheman2]

Re: need help to know what is the ohm of this switch

it has 4 pins.

it is hard to test since the pot is broken through though.

[dentheman2]

Re: need help to know what is the ohm of this switch

@Khron,

I thought you were the original poster so I mistakenly thought you fixed your machine, sorry for that

In the specs on mouser I see that the pot is 10K, is that a problem?

[Khron]

Re: need help to know what is the ohm of this switch

I'm going to guess the potentiometer (if you can look at the bottom of the board) has two of the active pins connected together, so in essence, wired as a variable resistor. The big fat electrolytic next to it would be indicative of this being the analog gain adjustment of the mic preamp.

In that context, you could very well use a 10K pot, and solder in a resistor (say, 3.3k or so) in parallel with it.

[dentheman2]

Re: need help to know what is the ohm of this switch

thanks, made some new pics that confirm your suspicions.

btw left two pins are not connected, think it was some dust in the pic.

pin 3,4 are connected.

the 3.3K resistor to which pins do i solder that?

[Khron]

Re: need help to know what is the ohm of this switch

https://cdn.badcaps-static.com/pdfs/...106059987c.pdf

"Electrical diagrams", first one, PTV111. As you can see, pin 4 (as seen from the front) is "dummy". Your "pin 3,4" are pins 1 and 2 in the datasheet.

[dentheman2]

Re: need help to know what is the ohm of this switch

ok thanks!

[Khron]

Re: need help to know what is the ohm of this switch

No problem, good luck with the repair!