2. amps-preamps
  3. 192079-144675

Voltage conversion of Accuphase C-2300 to from 100V to 120V

@imhififan

Here are pictures of C-2300 of the power supply board:

https://onedrive.live.com/?cid=6E164E2EDFDD40F6&id=6E164E2EDFDD40F6%21sfdad05ca3d0c4b24b02e5d6609dce401&parId=6E164E2EDFDD40F6%21120&o=OneUp

https://onedrive.live.com/?cid=6E164E2EDFDD40F6&id=6E164E2EDFDD40F6%21s6c1a3fe50f5a4a3ba9efa6174c03a804&parId=6E164E2EDFDD40F6%21120&o=OneUp

https://onedrive.live.com/?cid=6E164E2EDFDD40F6&id=6E164E2EDFDD40F6%21sbeeb05970528476f9e91f9a03c468992&parId=6E164E2EDFDD40F6%21120&o=OneUp

https://onedrive.live.com/?cid=6E164E2EDFDD40F6&id=6E164E2EDFDD40F6%21s771d4a58f6884dbbab4cb86f8a47bf83&parId=6E164E2EDFDD40F6%21120&o=OneUp

https://onedrive.live.com/?cid=6E164E2EDFDD40F6&id=6E164E2EDFDD40F6%21s35d1c47662a54ff5b0414f8e5d302aec&parId=6E164E2EDFDD40F6%21120&o=OneUp

https://onedrive.live.com/?cid=6E164E2EDFDD40F6&id=6E164E2EDFDD40F6%21saca40c4faa9e4b768250b269833213da&parId=6E164E2EDFDD40F6%21120&o=OneUp

https://onedrive.live.com/?cid=6E164E2EDFDD40F6&id=6E164E2EDFDD40F6%21sf52be7683abe4b4297f2705c75cb2c8d&parId=6E164E2EDFDD40F6%21120&o=OneUp

https://onedrive.live.com/?cid=6E164E2EDFDD40F6&id=6E164E2EDFDD40F6%21s927b33554a1641f3ab4641f9bd26f08b&parId=6E164E2EDFDD40F6%21120&o=OneUp

https://onedrive.live.com/?cid=6E164E2EDFDD40F6&id=6E164E2EDFDD40F6%21s503742a016944b4f91fc5c968e76bd8f&parId=6E164E2EDFDD40F6%21120&o=OneUp

https://onedrive.live.com/?cid=6E164E2EDFDD40F6&id=6E164E2EDFDD40F6%21s77510171944449fe9d0459bd783decf7&parId=6E164E2EDFDD40F6%21120&o=OneUp

I will appreciate very much if you would figure out how to do the voltage conversion from 100V to 120V.

Thank you in advance.

foolishman
foolishman OP
57 posts
 

@imhififan

Your assumption of information on C-2300 is correct. I have successfully converted to 120V. Thank you very much.

Meanwhile, I am looking forward to receiving information on A-48S, also.

 

 

imhififan's avatar
imhififan
2,189 posts
 

@foolishman 

Good to know that the C2300 voltage conversion was completed successfully. smiley

Regarding the A-48S, it appears that 716-1374-00 is the voltage selection board, 716-1304-01 is the soft start resistor selection board, and 716-0962-01 is the standby power supply board. I have no idea what the function of the 716-1362-00 board is, if you could remove all of these boards from the case and post photo of the reverse side, maybe I can figure out how to do the voltage conversion.

 

foolishman OP
57 posts
 

@imhififan 

Thank you very much for providing information on the A-48S.

Here are photos of the reverse side for those boards:

A-48S (7).JPG

A-48S (8).JPG

A-48S (9).JPG

Thank you very much in advance.

 

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