Chexx 83 - Scoreboard LED Segment Displays -- SOLVED ---

[slickrick]

Hi there ,

i am from Germany and own a few original chexx games. Since i was a kid and played them the first time i wanted them so badly. Now i own 4 of them ...

Right now i restore and modify some of them. Even try to polish a dome that is badly scratched...

On one Scorboard the LED Displays are missing some segments. Is it the Display itself or the ICs? I know that there are 3 ICs per Single Display but they all look ok to me.

So if i want to change the LED Displays what kind of Displays do i need. I have the Parts List and it says:  DISPLAY LED 2 CHAR NUMERIC .56 CH

I know that .56 is the size, but what the heck is CH Is it Common Cathode or Common Anode?? I dont want to destroy the ICs if i out on the wrong Display.

Thank you.
Cheers

slickrick

[slickrick]

--- SOLVED ---

I found out that it is CA (Common Anode). I ordered the new displays. I will report if they are working. If not it´s the IC and i will also change them.

Cheers

SR

[rj]

Guten tag! I'm starting to debug my scoreboards, and I'm curious what the solution was for you- I've read that the 74LS164N chips are unreliable, and was tempted to start there.

Thanks!
RJ