The Yamaha AN1x Synthesizer mailing list

Op 26-2-2012 16:58, Conn-Man schreef:

> Question is this...If I change the battery will the factory presets get lost
> or will they just stay the same when powered up?

My personal experience was that the internal memory got garbled a bit. 
So I did a factory reset, and everything was back to normal. So no, 
there's no way to lose the factory presets, because they're stored in 
some sort of fixed memory.

> If not, is there a way to change the battery with the power hooked up and
> not damage the unit or a way to (easily) re-install the factory pre-sets?

You can, but in your case it's not necessary. Suppose that you would 
have a bunch of your own presets, and no way to save them, then you 
could keep the power on. But then you'd be mucking about with a 
screwdriver over a powered printed circuit board, with a chance of 
causing a short-circuit.

- Peter