Mouser

PCB

• 

Information

Hardware ID

UPL-83001

PLD

This file is to replace the custom chip found at location 3F.
As the GAL has more pins than the original device, some wire strapping is required

PLD Information					Credits		Download	View
Dump Method	Target Device(s)	Location	Info	Status	Creator(s)	Tester(s)	Files	Pictures
Recreated	GAL16V8	3F		Tested	Porchy	Porchy	ZIP

Reference

Clocks

• 
  Main CPU
• 
  Sub CPU
• 
  A-Y-8910
• 
  Sub CPU NMI
• 
  H-sync
• 
  V-sync
• 
  Sync output

Custom IC

• 
  Die shot
• 
  Schematic of custom IC