Fixing Olinuxino A13 Dev board hardware VGA problems

Submitted by fabio on Fri, 2012-09-21 10:01.

Back in July, I ordered one of the early versions of the Olinuxino A13 board since it seemed very cool: powerful, open hardware, easily to solder and develop derivative products from it...

Unfortunately, there was a minor hardware issue on the VGA output which Olimex guys promptly fixed and share the fixing procedure with us.

These are some pictures I took while I was fixing my board.

The Olinuxino A13, in all its beauty.

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A closeup of the place where the hack needs to be done. This is as the original board was.

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Here I just cut out the track from R19.

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Just removed R42

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Transistor soldered over R19 and R42 pads. I used a 2N7002P,215 which I got from mouser a while ago.

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Here I soldered a tiny wire to the gate of the transistor.

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The other side of the wire has been soldered to RM14, 4th output on the top.

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Tiny 0402 1K Ohms resistor soldered between pin 19 and 20 of the U5 component.

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The finished hack with some tape to not risk removing the wire.

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It works! A full review soon.

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