Convert CM15A from 120V to 220V|
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Posted by GungHo on April 7, 2005, 9:28 am
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Hi, I have now received my CM15A from USA and are going to convert it to 220V. I can either use a external transformer or exchange the allready soldered transformer on the board ! I would prefer to change the transformer on the board but I am affraid that the opto couplers will be damaged. Any advice ? | |||||||||||||
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Posted by Dave Houston on April 7, 2005, 5:19 pm
Please log in for more thread options I think an external 220:120V step-down transformer with a bypass cap is safest. Otherwise, there are a few other components that you will need to change. There's a schematic at https://gullfoss2.fcc.gov/prod/oet/forms/blobs/retrieve.cgi?attachment_id=347598&native_or_pdf=pdf if you don't already have it. | |||||||||||||
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>I have now received my CM15A from USA and
>are going to convert it to 220V.
>
>I can either use a external transformer or exchange the
>allready soldered transformer on the board !
>
>I would prefer to change the transformer on the board
>but I am affraid that the opto couplers will be damaged.
>
>Any advice ?