I have an original Chexx and Im having a problem with the score board. The board lights up, LEDs show 0 0 score and the fan works. The problem is the period indicator lights do not light up at all and the score stays 0 0 and will not change when a goal is scored. The noises coenside with the action going on. I tested the switches and they check out ok. I tried 3 different scoreboards and have the same result. Any ideas
Also the game is a CX-83 model USA vs Russa. Ive owned the machine since 1995 and the score and period lights did work then quit but the main lights did not. In 96 I replaced the dome with a new ribbon cable and the main light then worked but the period and score keeping still did not work. The game has been apart a dozen times or so to try and figure it out but no luck. So now 15 years later I come to this board for help to finally get this working. I have the manual and could understand most of the wiring diagrams just not understaning the functions of the chips.
I had the same problem on mine when I got it. Noticed that the ribbon cable was fried indicating that it was reversed at some point. I am currently replacing all of the chips in the scoreboard that got blasted by the current.
My problem was fixxed after replacing allow chips in the scoreboard which were physically blasted apart by the voltage, and the last chip on the motherboard which was just a repeater/amplifier. While I was in there also replaced all lights with leds and disconnected the fan. Works like a charm.
Hi Bjl, I have the same problem with my super chexx 2nd generation scoreboard. I would like to know how you can identify the blasted chips and where you can buy spare chips. I inspected the 4 circuit boards inside the scoreboard and I found corrosion on chip pins for 5 specific chips... Do you know if a blasted chip can generate corrosion? Your help will be very appreciated. Thank you
Some of mine showed physical duress, like a mini bomb went off in the chip... Research told me that 1 got zapped, then they all did in the scoreboard. From memory there were 13 or so chips to replace but they are cheap, the 13 are split between 2 different kinds, 14 pin and 16 pin...
My game suddenly stopped ejecting the puck and the speakers simply made a loud buzzing sound. As soon as I unplugged the ribbon from the mother board, the scoreboard turned off but the game began to work correctly again. Any thoughts??