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Vintage Synth Repair

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Re: [vintagesynthrepair] Re: Crumar Trilogy repair

2010-03-09 by Andrea Sanchini

Are you still searching 3330 and 3310 for Crumar?
I have spares, of if you want, the complete voice card.
Please let me know, thank you
Andrea

ambrosia800 ha scritto:

It is not a normal ground loop problem. The hum seems to be directly related to the number of voice cards in the machine. So I think, the power supply could be the problem.

I think, a recapping of the power supply should be the way to go.

On the other hand, there is a tantalum on every voice card. I think, changing the tantalums on the voice cards shouldn´t be a bad choice either.

Anybody of you got some spare CEM´s?
One 3330 and a 3320 as well are broken. For one of my other machines I´m also looking for a 3360


--- In vintagesynthrepair@yahoogroups.com, "Scott" ...> wrote:
>
>
>
> -If you can take the "ground loop" out of the equation, the most likely cause is power supply filtering capacitors that have gone dry and arent doing what theyre supposed to.
>
> I see this as a regular thing here in my shop.
>
> Caps are easy to get and fairly cheap and replacing them drops troubleshooting time way down
>
> Just doing that may make your troubles flee
>
> Scott in Burrrrrrrr-mont
>

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