Gefen VGA to DVI Scaler Plus questions

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venchia3
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Gefen VGA to DVI Scaler Plus questions

Post by venchia3 »

Hi all,
I recently purchased for basically peanuts (17 euros) through ebay one of those Gefen VGA to DVI Scaler Plus, the grey version (not the black/blue one). It was almost certainly pulled off a working environment because at the bottom there were hot glue residue.

The seller told me it's in good working order, but he didn't have the PSU for it. Since the auction went so cheap I'm not going to be too concerned if it doesn't work, but I would like to know the specs of the PSU from some of you that maybe already have this piece of hardware :)

I think it must be something like 5v 2A, but didn't find any certain info online and seller didn't know.

Plus, with the grey unit am I going to obtain the 720x480 from the Dreamcast? I purchased the unit basically just for the DC and the Atomiswave (which is a sort of Naomi/DC and outputs VGA natively)...

thanks so much for stopping by!
Last edited by venchia3 on Mon Jan 12, 2015 8:44 pm, edited 1 time in total.
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Fudoh
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Re: Gefen VGA to DVI Scaler Plus questions

Post by Fudoh »

Plus, with the grey unit am I going to obtain the 720x480 from the Dreamcast?
yes, but you have to use the auto adjust function to get the clock/phase setting to an otherwise inaccessible value.

And yes, 5V2A for the PSU.
venchia3
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Location: Italy

Re: Gefen VGA to DVI Scaler Plus questions

Post by venchia3 »

Thanks! Now that I remember I was reading from you way back that you had issues with the grey unit obtaining those 720x480 :) in the end is just a matter of auto adjustment, glad to hear it!

Just for curiosity, the black/blue unit is instead able to recognize automatically that resolution from a DC? Is this the only differece?

Will try to find something less cheap and better made, but let's say, something like this should be ok-ish, right?

http://www.amazon.it/ALIMENTATORE-CONNE ... ords=5v+2a


EDIT: actually found TOP MICROSYSTEMS HK-I510-A05 Power Supply used by Gefen. www.Pollin.de have a stock of them at a really great price, hope they send outside Germany :)
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Fudoh
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Re: Gefen VGA to DVI Scaler Plus questions

Post by Fudoh »

As far as I can tell (or remember) it's also a firmware question, but the majority of sold units should be fine. I think (to remember) that you have to invoke the auto adjustment on all units, some of the later ones just won't get it right then either.
venchia3
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Location: Italy

Re: Gefen VGA to DVI Scaler Plus questions

Post by venchia3 »

Got it! Thank you so much for the tips :) already ordered from pollin the official PSU for the unit, hope will arrive soon
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Laughingman.s9
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Re: Gefen VGA to DVI Scaler Plus questions

Post by Laughingman.s9 »

I just bought myself a grey unit as well. I can't find it online but is this firmware upgradeable? I remember reading there were firmware updates for this but at the official site I can't seem to find anything
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venchia3
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Joined: Thu Jul 21, 2011 3:30 pm
Location: Italy

Re: Gefen VGA to DVI Scaler Plus questions

Post by venchia3 »

No, I'm pretty sure it's not firmware upgradable, you are set with the stock one installed
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