Just finished restoring a Gottlieb System 1 Genie from 1979. The game works and plays great however it does not retain the high scores. It always shows the last score as the high score when the game is on. Once shut off , the last score is not retained either. I checked for power at pin22 on z22 and it is present. I have swapped a number of components from a spare board I have with no change in behavior. I unfortunately do not know the condition of that parts on that board, however I can at least say there is no change. I swapped z22, z5, c24, and u4; the board does not have battery damage. Lastly I did follow the trouble shooting in the Gottlieb manual and entered scores for book keeping 7-10 and they were not retained. Lastly, I know the one cap on the power supply can be suspect however I rebuild the power supply with all new caps. I am pretty much at a loss, so any additional thoughts would be greatly appreciated.