Accuphase voltage conversion

pip555 OP
Thanks for all the replies. From what I have read on other forums, the Accuphase transformer is multi-tap (therefore multi voltage), so in theory, all one should have to do is rearrange the transformer wires. All I require is a photo, or a schematic of someone who has a 120v version.

When I purchased this unit, I knew that being from the gray market, I would not have access to service or assistance from Accuphase. I don’t mind using a step down transformer, but I am curious how to convert this unit internally.

Pip555 this is a very dangerous way to go about it to be told how to do it..

If you don’t know how to do it "by measuring the primary windings with an ohm meter", to find out which way to wire it up. Please give it to a qualified tech who does know and will do it this way, as he won’t go by just being told, he’ll measure twice adjust once. Just like a good carpenter, who measures twice cuts once.

As not only can you blow the amp, but also yourself in changing things in this area..

Cheers George

All I require is a photo, or a schematic of someone who has a 120v version.

What I’m saying if this question needed to be asked, and one doesn’t know how to do it oneself using a DMM. Then it would be much safer to get a electronics technician to do it.

As if there are multiple primary wires for different mains voltage operation which it sounds like there is, depending on the export country they can even have different colours. And there can be half a dozen different ways to wire it up.

The safest way is to measure using DMM all the static impedance of each of the
primary windings, so one can get the series or parallel connection or what wires not to use for the mains input voltage required

Is there licensing for working with electronics?

Of course there is, especially on the mains side if one need to have trust in a persons ability.

You get licence of electrician

Electricians I know, would not have much of an idea how to do this, they might have a go but confidence would be lacking. An electronic technician however would know how.

Just look at the amount of wires here on the transformer on the primary side of things, this transformer may be able to serve 100v, 110-120 or 230-240v mains, and there’s what looks to be a resistor involved, which could also be a thermistor. (seven possible connections)

http://www.hifido.co.jp/photo/07/108/10895/e.jpg

Cheers George