[Coco] Generic VGA adapter

[Barry Nelson]

> Steve C. towmater at gmail.com  <mailto:coco%40maltedmedia.com?Subject=Re%3A%20%5BCoco%5D%20Generic%20VGA%20adapter&In-Reply-To=%3CCACAVgyHesogaf3AYKzUcZYg-4M-p9q%2BAN-TKbenNVJFRrN9WdQ%40mail.gmail.com%3E>
> Mon Jan 23 01:03:29 EST 2017
> 
> I built this RGB-SCART-HDMI adapter, but it is seemingly just taking the
> composite video on pin 20 to HDMI and ignoring the RGB. Any ideas where
> this went wrong?
One of 3 things is probably wrong.
1) You did not connect a +5V supply to a 100 ohm resistor to pin 16 as shown in the diagram.
2) You did not connect the ground of the 5V supply to ground on pins 4,5,9,13,17, and 18.
3) you got unlucky and got a SCART to HDMI converter that does not support RGB video. Send it back and get a different one. If this is it, let me know as it will be the first time this has happened.