Quoted from Pinnacle82:P1, P2 and the Match displays are working fine (score and respond properly to game play).
These correspond to A1-D1.
Quoted from Pinnacle82:P3, P4 and the Credit displays refuse to show ODD numbers which is odd (pun intended) – they only display correct even numbers or they round down to the nearest even number… Despite the issue, game still functions as if it displayed the correct information.
These correspond to A2-D2.
Quoted from Pinnacle82:Since the issue seems to be with logic, I’m assuming its a bug with ROM1 (U20).. I’ve never had ROM issues with other pins (knock on wood) so wasn't sure if others have experienced this and have a solution / suggestion that isn't ROM related before I go that path.
It's a logic issue but not with the software. The BCD is sent as "DCBA" so P1/P2 is D1/C1/B1/A1 and P3/P4 is D2/C2/B2/A2.
- 0=0000
- 1=0001
- 2=0010
- 3=0011
- 4=0100
- 5=0101
- 6=0110
- 7=0111
- 8=1000
- 9=1001
Can you spot the pattern?
Here is the relevant section in the schematic.
Ogden, UT
