bush lcd27tv005 problem

[petehall347]

first of hello i am new here .i am regularly on audiokarma though
ok i have a bush lcd27tv005 . thing is no back-lights they just flash on and straight off at start-up .i have checked the 24v supply to the inverter board it measures 23.6v . is it high enough ?
i haven't checked the other voltages to inverter board yet as i don't know what they should be or if they should be checked with a scope ?
i am just trying to determine if it is a inverter problem or not before i order a new board for it .