The vert out has 3 electrolytic caps C3B, C1C & C1B involved. Double
check them & the wiring. They do not go to ground as normally done.
They can cause the bottom to "pull up" & throw off the vert lin.
Also look into the negative 85 line.
Thats as far as I can go. The power supply is cut off in the schematic & none
of us can get a scroll bar to move it. All my fault for not being a
computer head !
73 Zeno
LFOD !