|
If you haven't already done so, re-flow the two ground stakes on the far right end of the chroma board. If one of those goes open, it kills the heaters on the 6GU7s. Their plates go high, and since the plates are DC-coupled to the CRT grids, beam current goes out the roof, dragging the HV down. Also 6JE6 cathode current goes high.
This may not be what's causing your problem, but always reflow those stakes anyway. It's an endemic problem to CTC-12, '15, '16, '17, and '25.
|