Twin Paradox
New member
I recently moved to a new house and had to transport my cocktail style frogger. When I fired it up for the first time in the new house, I was quite unhappy to discover that some of the sprites were garbled. In addition, many of the scrolling objects (cars, logs, snakes, etc.) appear "jumpy" and do not scroll smoothly across the screen. I assumed that something must have come loose during the move, so I reconnected all of the molex connections and pushed down all of the IC's. This had no effect whatsoever. I also downloaded the manual and tried to troubleshoot the problem, but got nowhere. I am somewhat of a newbie to arcade repair, but I have a decent understanding of electronics in general. I was competent enough to switch out the linear power supply in my Moon Patrol with a switching power supply. Anyway, I was curious to know if anyone had any suggestions as to the source of my problem. Is there anyway to tell if an eprom or an IC is bad? Am I even remotely close to troubleshooting this problem correctly? Any help would be appreciated. Thanks.