Accuphase DP-560

Sorry I have no experience with DP-560, on the DP-550 Accuphase offer three input voltage selection:
Main transformer
J1 = 100v
J2 = 120v
J3 = 220-240v
Standby transformer
J4 = 100-120v
J5 = 220-240v
You can simply measure the DC resistance of the transformer tap to confirm the connections.

do I need to change J4, too?

For 120V conversion, no need to change J4.

You need to cut open or desolder the jumper wire on J1 and solder a jumper wire to J2.

@foolishman,
Can you provide picture of DP-560 power board?

In this case, I want to change to 220-240v.

J1 = 100v
J2 = 120v
J3 = 220-240v 
So if you want to change input voltage to 120V, just simply move the jumper wire to J2 or move it to J3 for 220V-240V.
I didn’t see any standby transformer or J4 and J5 on the pictures, please make sure there isn’t a standby transformer hiding somewhere, otherwise the transformer will be fried when power up with 220/240V mains voltage!

if you would tell me how to solder a jumper wire. Do I need to pierce on the board before soldering a jumper wire?

Accuphase gears are expensive (to me at least), if you need to ask this question, no offense, I suggest you find someone with electronic and soldering skill to do the conversion for you.

Great, you’re more than welcome. Thanks to let us know, it will help other members if they need to do voltage conversion...