Mystey control beneath a wurlitzer 200a

[pluto]

Hi,
Can someone please tell me what this does?
It's a control you can twist with a screwdriver, it's located underneath the piano, just a bit back from the phones/aux out outputs.

I don't want to mess with it without knowing what it is, in case I screw something up.
Sorry about the bad picture..



Thanks

[Ben Bove]

I'm sure steveo can answer this better, I'm trying to remember if it's a volume knob for the AUX out or Headphones.

[matt.musicman]

It is at least the volume for the AUX. Not sure if the headphones are also linked with it.

[pluto]

Hey,
Thanks for the fast reply guys.
Cheers.

[pianotuner steveo]

It is a trim control for the aux out-to match the output to the input of the external amp (hopefully) without distortion. It has no affect on the headphone output.

[pluto]

I wonder if you could also help me with this.

The pilot light flutters continuously, & very occasionally a short static noise will come through the speakers. Other than that it sounds great.

The piano itself runs on US power voltages but I have it running from a stepdown tranformer. Could this be the cause??

[pianotuner steveo]

That could be a cause, but I would have an electronics tech do 2 things- replace all of the capacitors, and resolder the entire PC board. I had a similar problem when I bought my 200A, and it just turned out to be poor solder connections on the board-a simple fix.

[pluto]

Thanks for your help.
I shall do.