Tried to paste a circuit diagram into this problem, but no luck.
Believe the problem is in the power suppy.
Model: Hitachi CU 5002k 50″ 3 tube projection.
No picture, raster or sound.
I have no scope.
Output from the Sub Power Supply is, and should be, 122 VAC (Point AD).
Imput to the Power Deflection Circuit (AD) 122 VAC.
Then goes to a Diode/Capacitor Bridge Circuit and emerges at a fuse at 76 VDC. It then goes thru two capacitors to a test point (30) at 76 VDC. At test point 30 it should be 129 VDC.
None of the diodes are (temperture) hot or even warm.
I suspect all the parts in the circuit (except the fuse)
I don’t expect a definative answer, but would like your thinking on a solution to this problem (Where would you go first?)
Going to a TV repair shop with this older set (1992) is not an option..
My email address is available if you have questions
To all TUVM