Output PCB - VGA from Scratch - Part 18

In this video I turn the final output circuitry into a PCB. This is circuits from multiple vga videos going all the way back to the first in the vga series. You can probably guess from the length of the video, I ran into some problems with this one. I thought about splitting this into two videos but I couldn’t find a place where it felt right. Conceptually though it has two halves. Firstly the classic schematic, layout, route and solder is the first part, right up until I test the board. Secondly the remainder of the video is troubleshooting, diagnosis and repair. Based on previous comments I imagine some people will be interested in that second half even if they wouldn’t normally have watched a PCB build video.

With the schematic I have a false start trying out a wider form factor, making the PCB’s for the VGA into a (educated) guess of the space I need is proving to be a challenge. We’ll see how that goes when I get to the final couple of modules.

0:00 Introduction 0:25 Discussion 2:31 Schematic 20:07 New layout 24:12 Routing 28:25 Unboxing 30:17 Placing 33:55 Reflow 35:41 Hand Soldering 39:40 Install 41:32 First Power-On 48:35 Stand alone testing 1:02:41 Colour Bar Test 1:07:15 Bodge 1:15:35 Bodge test 1:16:19 Bodge Fix 1:18:36 Working! 1:19:56 Outro

Big Mistakes 14:18 Reversing the lines 37:23 Hand soldering ... https://www.youtube.com/watch?v=CSDo6S7nBoc