fdt-5bx5 Violently Exploding Capacitor

[old_tv_nut]

"Horizontal Width Width Adjust" sounds like a bad translation of something. I can't see anything adjustable connected to it, so maybe it's a blanking pulse shaper that "adjusts" (changes) the pulse width to the desired waveform (?).

Edit: I note that RV504 is labeled HORIZ SIZE, not "WIDTH."

Next thing I would try is shorting L503 to see what happens.