Re: Dell E153FPB Back Light problem
Check out the 4 transistors on Inverter = Q739, Q740, Q759, Q760
You are looking for shorts between the pins, if they check out okay then check there solder joints to board of the transistors with about a 10X magnifying glass looking for ring crack or any bad solder joint to resolder
Do the same to the 2 mosfets as well Q743, Q759
also check the rest of the board for ring cracks or bad solder joints, Benq boards always have bad solder joints
Originally posted by Bubii
You are looking for shorts between the pins, if they check out okay then check there solder joints to board of the transistors with about a 10X magnifying glass looking for ring crack or any bad solder joint to resolder
Do the same to the 2 mosfets as well Q743, Q759
also check the rest of the board for ring cracks or bad solder joints, Benq boards always have bad solder joints
Comment