Accuphase A-48S


@imhififan 

Here are photos for rear of 3 boards you specified:

A-48S (7).JPG

A-48S (8).JPG

A-48S (9).JPG

I will appreciate very much if you would provide information on them.

Thank you in advance.

 

foolishman

@imhififan 

Thank you for your response. I will let him know about it. He will be glad to hear it.

Thank you again.

 

What can't I see the photo's. When I click on them it just takes me to Onedrive

@imhififan 

Would it be possible to convert the A-48S from 100V to 230V given that it has a soft start #716-0962-01 requiring a replacement transformer?

Could you advise what the wiring changes would be to the transformer to convert the primary winding to 230V

Thanks, Andy

@andyf

Convert 100V to 230/240V, in addition to replacing the standby circuit transformer on #716-0962-01,

1. You will also need to find out which wires belong to which set of primary windings using an ohmmeter.

2. Remove jumpers J1 and J3 and install jumper on J2, change fuse on board #716-1364-01 from 10Amp to 5Amp.

 

 

Thanks @imhififan 

I might be a bit slow, just what would I install on J2, as it only has a single tab.

Also, I believe that the standby circuit transformer has 3 pins on one side and 4 on the other. Does this suggest that it may be a center tap so can accommodate both 100V and 230V? It just needs wiring up differently.

Not being experienced, how would I go about finding a replacement transformer?

Thanks in advance for any help you can give.

Cheers, Andy