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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: freqmax on January 29, 2014, 01:01:18 AM

Title: A520 modulator schematic?
Post by: freqmax on January 29, 2014, 01:01:18 AM

Where can one download the schematic of the A520 modulator?

I know there's better chips than MC1377P but the original schematic has some info on how the problem was solved then. And it's a starting point.

As an alternative to reverse engineer:
http://amiga.resource.cx/exp/a520

And hope that the PCB is no more than dual layer..

Title: Re: A520 modulator schematic?
Post by: AmmoJammo on January 29, 2014, 11:22:43 AM

Quote from: freqmax;758135

And hope that the PCB is no more than dual layer..

Its single layer :P lol

Title: Re: A520 modulator schematic?
Post by: mrknight on January 29, 2014, 11:53:35 AM

I had  a look at Big Book of Amiga Hardware and they have some detailed photos of the PCB:
http://www.bigbookofamigahardware.com/bboah/product.aspx?id=725

Not the schematics as such but it might be helpful.