How to decode communication

[Christopher4187]

I know the board was manufactured in 1998 by Daktronics. I don't have it with me but I will try to post a picture when I get home tonight. I'm stuck on two problems.

1. The constant data makes it hard for me to determine where the comms starts and ends.

2. The PWM (or at least that's what it appears to be) seems like it isn't steady. This could be my probe so I'll recheck it when I get home.

Maybe this will help.....maybe not. Here is a log from Hyperterminal. Most of it was automatically sent by the controller and I pushed a button five or six times during this log. I connected the output pin of the scoreboard to pin 2 of the Max232. I was using 4800 bps:

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