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Author Topic: Making new connection for scandoubler?  (Read 2510 times)

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Offline PaSha

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Re: Making new connection for scandoubler?
« on: May 01, 2006, 07:56:03 PM »
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nasty wrote:
I have to explain this would be my first every circuit project, I have a 23 pin connector and I have an old gfx card, I could take the vga connector off. so all that I guess is going to be needed is the small circuit board, so any advice on how I would go about creating this?


You don't really need to make a PCB, just solder the wires directly to the connectors.
Two of the pins get two signals from the 23-pin connector (and can be soldered directly to the connector inside the A1200) and the remaining 8 are Reg, Green, Blue, Hsync, Vsync and a couple of grounds for the 15-pin VGA connector.

The circuit board does absolutely nothing else than look good (and make the product user friendly).

-Paul

EDIT: Pinouts:

Top side, connector to the right (like in this pic http://amiga.resource.cx/photos/scanmagicint.jpg)

Top pin:    Green, VGA pin#2
2nd pin:    Hsync, VGA pin#13
3rd pin:    GND
4th pin:    Vsync, VGA pin#14
Bottom pin: Red,   VGA pin#1

Bottom side, connector to the left

Top pin:    Alice pin#77 (? 7th pin from the top, l/h side, same side as pin 1)
2nd pin:    Blue, VGA pin#3
3rd pin:    Alice pin#79 (? 5th pin from the top, l/h side, same side as pin 1)
4th pin:    GND
Bottom pin: N/C

I have the version with the Alice clip-on adapter thingy myself, so I don't know the corresponding pins on the 23-pin connector)