Accuphase E-408 voltage conversion

A photo of the inside might help…
Or a local electronics repair place.

They just put on a transformer and measure the wires from the other transformer taps to find the right ones.

On my Audible Illusions line stage, the transformer is either 110v or 230v, so there was no moving to different winding taps, and they wanted $750 to provide the 230v version. And it still sits on a 230v—>110v transformer.

You should be able to pick up a transformer for going from 230v —> 100v

Thanks for the answer, I can not upload a photo, the forum interface is incomprehensible to me. I have an external step-down transformer, but I would like to convert the amplifier to 230 volts. On various forums, users confirm that all Accuphase amplifiers have multi-voltage transformers that can be switched to 100, 120, 220-240 volts.

In ^that case^ then once it is on the transformer, the electronics place (or the tech) probes the remaining taps to see which one has 220/240v.

Then that is hooked up to the mains, and the 100v tap is disconnected.

One unconnected transformer tap line should read 120v and another 230v or you could have separate lines for 220v and 240v, but I think it I would just be a single 230v.
There should be 3 plus another as a common on one side of the transformer..

The other side of the transformer should have either two coming out going to a diode bridge, and maybe a third line as a common tied to the chassis or the ground.
It is possible that they all come out and go in on the same side.

Is there is a transformer part manufacture and part number on it?

Thanks for the help. I probably won't be able to do this work on my own. I don't know any trustworthy specialists in our city. Probably only a photo of the power board with 230 volt jumpers installed or a service manual would be the ideal solution to my problem. Sincerely, Victor.