I am losing high voltage causing my displays to go in and out. Initially when I turn the game on they are out. After a little less than a minute displays come on as the voltage at test point 2 increases to about 180v. Then voltage drops down to 60 and this process starts again. Replaced major high voltage components and HV adjuster which I had to modify as shown to fit.

TP1 voltage is correct
TP2 is up and down

Where could be the culprit be???

New z diode
New R 55
New caps
New bottle cap transistors
New q 22 and 23

Thank you in advance
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Good Night Bump!

I figured it out.

Replaced C27 C28 with alternate caps and R 56.

Works perfect!