Hi Alec,

Your advice NOT to attempt to change taps to preclude a mushroom cloud materializing is the right advice. I would definitely want to have a schematic diagram handy and perhaps talk to a keyboard repair technician before attempting to do anything myself, despite my long experience in electronics. I know a technician here locally in Manchester who repairs musical instruments and I think I will give him a call and see what he has to say.

On the surface of it and as a layman, I would think it would be cost effective for Panasonic to use a universal power supply, but then I'm not in the business. Maybe we need to start a write-in campaign on this issue? Consumer presssure works wonders sometimes.

Thanks for your response, Alec. Take care.

Chuck