Measure all the CRT voltages & if you can post the CRT
area of the schematic. Should be easy to figure out.
( dont need focus voltage)
Be sure the kine bias is not to high. It may be a switch.
You should be able to turn the brightness anywhere from
total black to normal without any retrace lines.
Another test put all G-2 ( screen) down & all other controls on normal.
No signal needed. Turn up one G-2 at a time, should turn that
color brightly. If the all come up you can grey scale it by eye.
73 Zeno
