View Single Post
  #8   Report Post  
Posted to
Terry Schwartz Terry Schwartz is offline
external usenet poster
Posts: 140
Default BenQ G2420HD LCD monitor cannot stay lit up

Are you certain there is no feedback? I've seen systems where the load driver, if overloaded, can truncate the PWM pulse from the low level driver circuitry and that circuit can sense it. Might want to put a scope on the enable and dim lines and see if anything like that is going on.