Atari Centipede Cocktail table has no picture on monitor

[vapuser]

Good afternoon all, now that the monitor board has all new caps, flyback and H/Out transistor I turned the unit on, and the screen finally lit up. It only stayed on the main centipede game screen for about 5 – 10 seconds then went black. I can turn up the brightness, but then all I get is a white screen. I also turned the RBG knobs and only got a slight hue of those colors. The both fuses don’t blow anymore. I checked the B + and I have a DC voltage of 119.5.  Is it critical that the reading be exactly 120vdc? According to the documentation, the adjustment reference R909 is not on the board. At least, not that I can find. Please see pic below. Can someone send me a picture of the adjustment potentiometer? I thought for sure everything would have been good except for a few minor adjustments. Not sure where to go from here. Does anyone have any suggestions?