I have solved both problems. I looked at the schematic and it showed the SCREEN CONTROL line. Since I knew this was where the problem probably was based on the Theory manual I began to check some levels.
The screen control was coming from the IC 5B as labeled on the schematic. This IC is a 7404, Hex Inverter. The input for the Screen Control is pin 9 and it was HIGH. The output was at 1.88vdc . Seems to be floating. I grounded the output pin (
and the video screen on the game flipped. I also tested the input pin 9 in a 2 player game. on player 1, it would go HIGH and on player 2 it would go low. So this is the signal that tells the circuits to flip the screen. Anyway I replaced 5B and it fixed the problem. It also fixed my other problem as well as a third problem.
Anyway, I hope this helps someone someday.
Thanks
Joe