Accuphase E-408 voltage conversion
Hello,
Maybe someone has experience in converting the voltage for the Accuphase E-408 amplifier from 100 volts to 230 volts? I tried to find this information on the forum, but without success.
I would be grateful for a photo of the board with the location of the jumpers for 230 volts.
Sincerely, Victor.
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- 32 posts total
Thanks @zeptul for the images, I will check it out and get back to you later. |
@zeptul please counter check if the jumper positions are correct.
If the jumpers position are correct, the setting should be as below: 100V mains = J5, J7, J9 120V mains = J4, J6, J9 220V mains = J5, J8 240V mains = J4, J8
Before changing jumpers, measure resistance across C2, after changing jumpers to 220 or 240V setting, the resistance across C2 should be more than 4X higher. BTW, 220/240V mains also required changing fuse F2 and soft start resistors jumpers setting. Please provide a photo of showing J1, J2 and J3 so we can figure out its setting. I also strongly recommend connect a Dim Bulb Tester or an 100watt incandescent light bulb in series to power up the amplifier after voltage conversion. If anything goes wrong, the bulb will simply light up instead of dim down to prevent damage of the amplifier.
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@imhififan wow - that is nice work sir. |
@imhififan Thanks a lot for your real help! Later I will disassemble the amplifier and check the position of the jumpers. P.S. For some unknown reason, links to photos in my previous posts have been removed. |
- 32 posts total