Ground Control / Octopus receiver circuit information

• UTA-1 component side 608x968 97K (annotated)
   
  
• UTA-3 component side 600x944 103K (annotated)
   
  
• UTA-3 solder side 824x1276 160K (annotated)
   
  
• How it all works...
   
  
• Please help!

The component side images are lighter than you might expect, due to the difficulties in scanning an object 2 inches above the scanner glass. :-)
IMPORTANT The pictures mark the RAM as being 1Kb. This is incorrect, it is a 2Kb memory device.