Predicta 17" HV question

[DaveWM]

I would stick with a reg film cap. After you get the correct cap in, try reading the PP on pin 6. You need to find out why the PP is only 30v and not 140v.

I am sure you have checked, but I presume you are seeing the 275v on the red lead of the vert out.

check for the 400v boost on the one side of the height (if not checked already). did not see a check mark by C3A 10uf 450v