[sdiy] Non-DIY, but looking for repair advice...

[John Ames]

On Mon, 28 Oct 2024 19:58:54 -0700
David G Dixon <dixon at mail.ubc.ca> wrote:

> Hey John, my advice would be to carefully remove the offending
> trimpot from the board and then measure it.  Since it is connected to
> other things on the PCB, you really don't know what the actual
> impedance between any two legs should be, because the trimpot could
> be in parallel with other impedances on the board.
> 
> If it still reads wacky after you have desoldered it, then you were
> right. If it reads around 100k, then you still have some digging to
> do.

Hm, makes sense. (Idly curious, though, as I'm very much a novice at
low-level electronics - does that apply even if the power's off? The
only current flowing then should be between the two leads of my meter
on the two legs of the pot, correct?)