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 Forum index » Instruments and Equipment » General Discussion
Roland D-50 voltage, 220v to 110v, help-me
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Stereokromatik



Joined: Feb 21, 2012
Posts: 5
Location: Brazil

PostPosted: Tue Feb 21, 2012 9:41 am    Post subject: Roland D-50 voltage, 220v to 110v, help-me Reply with quote  Mark this post and the followings unread

I bought a D-50, but the voltage is changed, it operates at 220v, it was modified ... can anyone help me, showing some internal image of the transformer, because he was converted, and would like to convert to the original voltage, 110V ... if anyone has a schematic image of the transformer or the original, so I could make the change.
Best Regards!
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Mongo1



Joined: Aug 11, 2011
Posts: 411
Location: Raleigh NC

PostPosted: Wed Feb 22, 2012 9:26 am    Post subject: Reply with quote  Mark this post and the followings unread

I think you can just buy a Roland power supply. I just had to replace the one for my D5 recently.

Check musiciansfriend.com or even Ebay - I think you'll find what you need

[EDIT] I'm sorry - I just looked at more info, and it looks like that keyboard doesn't use an external supply. Let me see if I can find out anything about how to change the transformer wiring.

Gary
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Mongo1



Joined: Aug 11, 2011
Posts: 411
Location: Raleigh NC

PostPosted: Wed Feb 22, 2012 9:34 am    Post subject: Reply with quote  Mark this post and the followings unread

I just found someone on the gearslutz website who had the same problem. Here is what he said

Quote:
Most Rolands are easy- you desolder one clearly marked terminal and solder it to the 110v terminal and change the fuse.


here is the thread that came from.
http://www.gearslutz.com/board/electronic-music-instruments-electronic-music-production/125107-changing-voltage-vintage-synths-220v-110v.html

My suggestion is to open the case up and see if it looks as simple as he says. If you are uncertain, it would be good to take some clear pictures of it, and post them here. I'm sure we can work through it.

Gary
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Uncle Krunkus
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Joined: Jul 11, 2005
Posts: 4761
Location: Sydney, Australia
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PostPosted: Wed Feb 22, 2012 1:47 pm    Post subject: Reply with quote  Mark this post and the followings unread

I've got one which is set up for 240V.
If you get stuck I could open it up (again Laughing ) and check it out.
I need to re-cap it soon anyway.

BTW, I would recommend any D50 which hasn't been re-capped, should be done. It can really help get back that good-as-new sound. These synths are around 30 years old now.

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Stereokromatik



Joined: Feb 21, 2012
Posts: 5
Location: Brazil

PostPosted: Wed Feb 22, 2012 3:42 pm    Post subject: Reply with quote  Mark this post and the followings unread

I would like to thank for the tip! I opened the keyboard along with a friend electronics technician, and confirmed what you said, only need to reverse a string, but not have to change the fuse ... the result was this:

The internal energy suply.
Photobucket

After, 220v
Photobucket

Before, 110v
Photobucket


Thank you, so much!!!
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Mongo1



Joined: Aug 11, 2011
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Location: Raleigh NC

PostPosted: Wed Feb 22, 2012 5:46 pm    Post subject: Reply with quote  Mark this post and the followings unread

That's great news! I'm glad we could get it working...
Gary
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Uncle Krunkus
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PostPosted: Thu Feb 23, 2012 1:02 pm    Post subject: Reply with quote  Mark this post and the followings unread

I think you should still change the fuse.As long as there is one on the primary side of the transformer. If not, do nothing.
It should be twice the Current rating, as you've halved the Voltage.

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Stereokromatik



Joined: Feb 21, 2012
Posts: 5
Location: Brazil

PostPosted: Fri Feb 24, 2012 3:20 pm    Post subject: Reply with quote  Mark this post and the followings unread

Uncle Krunkus wrote:
I think you should still change the fuse.As long as there is one on the primary side of the transformer. If not, do nothing.
It should be twice the Current rating, as you've halved the Voltage.


the first photo, appear two fuses, which were not replaced before the keyboard is converted to 220 ... I think it no need to change now, who is now with the original voltage. Still thanks for the tip Smile))
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