Voltage conversion of Accuphase E-5000

@imhififan

Thank you very much for your providing information on the voltage conversion. I will need to remove the PCB to take photos. I will post an image of the front and back of that PCB as soon as I take photos for it.

@imhififan 

Thank you very much for the information. In case I actually do the work for voltage conversion, I might ask again in details. Thank you again in advance for your help.

Meanwhile, I am going to try to convert voltage of the Accuphase E-700 to 120V. Voltage conversion of the E-700 is the same as the E-650? It would be very much appreciated if you would provide information on how to convert voltage.

@imhififan 

Thank you. I will post some pictures of the power supply board for the E-700. Thank you again.

@imhififan 

Sorry, I post them again since those links aren't available:

Here are pictures of E-700:

https://onedrive.live.com/?cid=6E164E2EDFDD40F6&id=6E164E2EDFDD40F6%2173321&parId=6E164E2EDFDD40F6%21120&o=OneUp

https://onedrive.live.com/?cid=6E164E2EDFDD40F6&id=6E164E2EDFDD40F6%2173322&parId=6E164E2EDFDD40F6%21120&o=OneUp

https://onedrive.live.com/?cid=6E164E2EDFDD40F6&id=6E164E2EDFDD40F6%2173320&parId=6E164E2EDFDD40F6%21120&o=OneUp

I will appreciate very much if you would provide information on voltage conversion from 100v to 120v.

Thank you in advance.

@imhififan

Thank you for providing information. Regarding the auxiliary transformer, I in case the existing transformer is used, how should I use a resister connected in series to drop 20V?

I will appreciate if you would provide more information.

Thank you in advance.

@imhififan

Here are some more pictures for the auxiliary transformer: 

https://onedrive.live.com/?cid=6E164E2EDFDD40F6&id=6E164E2EDFDD40F6%2173324&parId=6E164E2EDFDD40F6%21120&o=OneUp

https://onedrive.live.com/?cid=6E164E2EDFDD40F6&id=6E164E2EDFDD40F6%2173325&parId=6E164E2EDFDD40F6%21120&o=OneUp

https://onedrive.live.com/?cid=6E164E2EDFDD40F6&id=6E164E2EDFDD40F6%2173326&parId=6E164E2EDFDD40F6%21120&o=OneUp

https://onedrive.live.com/?cid=6E164E2EDFDD40F6&id=6E164E2EDFDD40F6%2173327&parId=6E164E2EDFDD40F6%21120&o=OneUp

Thank you in advance.

@imhififan

Thank you very much for providing information. Before receiving your message, I have done modification of circuit of the auxiliary transformer. Actually, a person with electronic and soldering skill has done.

According to him,  he inserted a resister : 2000 Ohm/2.5W (10kOhm/0.5W x 5 parallel) in series to the fuse and confirmed that the voltage at the DC plus line is 20% less from the original circuitry while power SW is ON.

Do you think it is OK?

@imhififan

Thank you very much for your quick response. I turned the amplifier on with nearly 100VAC and confirmed 2kΩ works.

I have successfully converted the E-700 from 100v to 120v thanks to your great help. Thank you very much again.

Meanwhile, also I have started discussions about voltage conversion of the E-4000 and the DP-450. I will appreciate very much if you would post information on them. I am ready to post some pictures of the power supply board.

Thank you very much in advance.

@imhififan

Thank you very much for information on the E-4000 and E-5000. I will let you know if I successfully convert them from 100v to 120v.

Here are some pictures of DP-450:

https://onedrive.live.com/?cid=6E164E2EDFDD40F6&id=6E164E2EDFDD40F6%2173337&parId=6E164E2EDFDD40F6%21120&o=OneUp

https://onedrive.live.com/?cid=6E164E2EDFDD40F6&id=6E164E2EDFDD40F6%2173335&parId=6E164E2EDFDD40F6%21120&o=OneUp

https://onedrive.live.com/?cid=6E164E2EDFDD40F6&id=6E164E2EDFDD40F6%2173336&parId=6E164E2EDFDD40F6%21120&o=OneUp

https://onedrive.live.com/?cid=6E164E2EDFDD40F6&id=6E164E2EDFDD40F6%2173338&parId=6E164E2EDFDD40F6%21120&o=OneUp

I will appreciate very much if you would provide information on voltage conversion from 100v to 120v.

Thank you in advance.

@imhififan

Meanwhile, do you know how to convert voltage of the Accuphase C-47 Phono Amplifier from 100V to 230V?

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

@imhififan

Thank you very much for your response.

I will try to take some pictures for the power supply board of those items and post them.

Thank you again.

@imhififan

Again, meanwhile, do you know how to convert voltage of the Accuphase C-3900 Pre-Amplifier from 100V to 230V?

Also, do you know how to convert voltage of the Accuphase A-300 Power Amplifier from 100V to 230V?

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

@imhififan

Sorry, I have no experience with voltage conversion with the Accuphase C-47 and PS-1250 either.

I'd love to know how to do that though! If you could provide some close-up pictures of both sides of the power supply board in your threads, maybe we can figure it out.

Regarding PS-1250, do you think it is possible to convert voltage to 120V without replacing the main transformer?

@imhififan
 

Anyway, my intention is just to help those who have an Accuphase with Japan voltage and want to convert it to 120V or 220/240V, I don’t gain any financial interest from anyone

Your comments are correct and very persuasive. I am not interested in running business about any audio gears, but I am very interested in quality of sound.

I look forward to your posting comments in the future.

Thank you.