You will need to remove a resistor if you are using a standard watch battery. The stock battery was rechargeable so you need to disable the recharge circuit.
I’ll get back together to post a screen image. Does anyone know if that one missing wire between the chassis and inverter board is needed or not? I would like to install one before reassembly to see if it fixes anything.
I picked up a DKjr cab that had a poor attempt at being converted to Karate Champ. The previous owner showed a distorted image on screen but you can make out the game. Also there were no colors…just grey.
I recapped the monitor and replace the B+. I also replaced the video input harness...