Problem solved .Started with doing the ground mods to the mpu and driver board the power board was already done ,then i took the old 5101 chip out and noticed on the board that where pins 18 & 19 go that they are connected together on the same trace on the top of the board , so after putting in the new chip i tested all the traces to the leg of the chip the only trace that was not working was 18 , pin 18 & 19 are both connected to ground so i add a splash of solder across the two pins at the back of the board plugged it in went into book keeping mode cleared 1-10 Added new scores in 7,8 & 9 for free games and added a high score in 10 and game was working again with high scores and can add more than 1 game , so turning machine on and off now keeps high score no problems all fixed . I would say to anyone that has this problem first 2 things to do is ground mods on all boards and check pin 18 make sure there is ground there.image (resized).jpeg
Thanks to Quench for all your help and forceflow and boat.