I thought I would share some PCB scans and x-rays. Someone might be interested in them.
If you are, save them now. They might not be on the internet FOREVER! ;)
A hint, schematics in manuals rarely matched the kit boards you purchased. In fact there was usually a cover page that listed changes to make to the board (component additions, jumper wire rerouting, etc)
So board scans and x-rays ARE useful! ;) A really cool shot is the last one. It is the back board scan processed and then overlaied on top of the x-ray. Purple traces are on the top of the board, orange are on the bottom.
I made these to duplicate the board. I will be tracing the artwork and making gerber files.
One interesting thing, the SN74123N next to the crystal has a metal backing on the die and the SN7406N and SN7404N right next to it does not.
Front Scan:
Back Scan:
X-Ray: (to scale)
Hybrid X-Ray/Back Scan: (this allopws you to see the traces on the front and back at the same time without desoldering components)
If you can do a better composite, go right ahead! and send me the results and instructions! :)
Have fun!