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  

Thank you, imhififan. Also, I will appreciate very much if you would tell me how to measure DC resistance. Where in the unit?

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

Thank you, imhififan. OK, I will report back the result, but, just let me know of what is DMM? 

Sorry again. Below is the correct URL for A-48 wiring:

https://onedrive.live.com/?cid=6E164E2EDFDD40F6&id=6E164E2EDFDD40F6%2166335&parId=6E164E2EDFDD40F6%21120&o=OneUp

To measure DC resistance, you need to pull out all transformer primary winding wires from the quick connect terminals, make sure all wires not touching each others, using a DMM to measure the following resistance:

white - orange = ? ohm
white - red = ? ohm
white - blue = ? ohm
white - black = ? ohm
white - yellow = ? ohm
white - brown = ? ohm
orange - red = ? ohm
orange - blue = ? ohm
orange - black = ? ohm
orange - yellow = ? ohm
orange - brown = ? ohm
black - red = ? ohm
black - blue = ? ohm
black - yellow = ? ohm
black - brown = ? ohm
yellow - red = ? ohm
yellow - blue = ? ohm
yellow - brown = ? ohm

Please report back the result and see if we can figure out which wires belong to the two sets of primary winding.

Below is the pictures of A-46 wiring:

https://img.canuckaudiomart.com/uploads/large/466882-1b7bea05-accuphase_a46_class_a_power_amplifier....

https://img.canuckaudiomart.com/uploads/large/466883-52355904-accuphase_a46_class_a_power_amplifier....

I tried to pull out all transformer primary winding wires from the quick connect terminals, but I could not pull them out since they are pushed into very tightly. Is there any way to pull them out easily? Or is it ok to pull them more strongly?

Below is a picture of A-48 wiring:

http://https//onedrive.live.com/?cid=6E164E2EDFDD40F6&id=6E164E2EDFDD40F6%2166335&parId=6E164E2EDFDD40F6%21120&o=OneUp

Below is the correct URL for A-48 wiring:

http://https//www.canuckaudiomart.com/view_userimages.php?user_id=175846

Thank you very much, imhififan. I will appreciate very much if you would explain more about  'measuring voltages across large filter cap?'  What should I do concretely to measure voltages across large filter cap?