Voltage conversion of Accuphase E-650


Does anyone know how to convert voltage of Accuphase E-650 100v to 110/120v? Or does anyone provide information on voltage conversion table of Accuphase E-650?
foolishman

Showing 4 responses by eugene81

Hello @imhififan @foolishman just to be crystal clear, connector K3 needs to be moved to K5 and connector K4 moved to K6 as pictured here? 

https://i.imgur.com/inGH8JLh.jpg

Sorry to be dense, but I want to make absolutely sure before having my tech do this.
 
I went ahead and did this myself and tested successfully with a dim bulb tester.

The amp sounds fantastic! It is somehow both crisp and clear, yet rich and slightly warm, with great texture and soundstage depth.

For others who might use this thread for reference, here are some more photos of the board removed, ready to work on, and post-conversion:

https://photos.app.goo.gl/7rQ1gaZM6zDN1E47A

Initially I thought it was one big board so I was going to take it to a pro. After being turned down by my usual tech (turns out they are an authorized Accuphase repair center and thus were told by Japan they couldn’t do it), I took another look under the hood and found that the connectors are actually on a smaller board secured by just 3 screws. I unplugged the 2 harnesses, 3 wires (blue, yellow, brown), and boom--easy access.