I am trying to repair a laptop where the back light has gone. I have tested the lamp by plugging it into another laptop inverter, the bulb lights up and is fine.
I have purchased a "tested" inverter board off of ebay but it did not fix the problem. I have tested the input pins for voltage. One of them reads 19 volts (pin 1 I think). Pin 2 in blank, pin 3 is 0.7 volts, pin 4 is 3.4v and pin 5 is 0v (presume this is negative).
Do these voltages seem right, in which case this would point to a faulty inverter wouldn't it?
The laptop is an Advent 7301.