Hi
Again a Hantarex Polo trying-to-fix
My Hantarex Polo has no Brightness control, nothing happens at all when I turn the brightness pot.
Also when the picture changes between black and white, the picture gets nearly all white, and then normal "black" again.
R240 a 180K resistor where OL, changed it to a new 180K but still no brightness control, I checked the resistor afterwards and it is still OK.
D401 is OK
What am I missing?