Voltage conversion of Accuphase A-48

imhififan, thank you for providing the voltage selection table. I have checked the wiring of A-48 100V. Here's the actual wiring:

100V - 1=white+orange 2= red  3= blue 4= black+yellow 5= brown 6=none  

I have checked the wiring of A-48 100V. Here's the actual wiring:

100V - 1=white+orange 2= red 3= blue 4= black+yellow 5= brown 6=none  

I could be wrong, but it look like wired to 120V

imhififan, do you have any reasons that looks like wired to 120V? Do you think both 100V and 120V are the same wiring?

to verify correct voltage can measure voltage on large capacitor terminals, which should be in a range 50V to 55V