Voltage conversion of Accuphase A-48

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

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....


 

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

DMM is a digital multi meter.

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

Plug in the amp to the mains (120v), measure voltage across terminal 1 and 3, if the voltage reading 140v or more the amp is wired to 100v, if the voltage is about 100v the amp is wired to 120v.

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