Zenith 23XC36 Blue G2 pot wiring

[Carmine]

Originally Posted by ctc17

Sounds like the boost voltage is missing. Check the parts on the flyback board. Maybe the boost diode or resistor popped.

I did as you said, found a 27K resistor linked to the 1200v boost per the schematic. Tested it and it measured 32.2K, so not opened. The other resistors on the board were again higher than anything my meter could read (I'm beginning to suspect my auto troubleshooting meter isn't up to this work.)

Then I measured the two things that looked like diodes in both polarity directions, using the diode scale on my meter. Both showed open in each direction, so could this be the fault of my meter? The smaller one is wired right to the 27K resistor, so I suppose it's suspect. It is labeled X4 on the schematic, but there is no electrical specification in the diode chart, just a part number. How would I replace this if it is bad?

Photo below: