Further to my question has static fried my chip?, it seems that the inverter chip isn't fried at all.
The basic story, I had a laptop with a smashed LCD screen. So I opened the laptop up. Removed the old screen, and put the new screen in. Whilst the case was still open, I powered it up to see if it worked. Everything was fine.
Then I put it all back together. Powered it up and it stopped working, the backlight does not come on. I can see the picture very faintly if the light shines on the screen in the right way.
I thought it would be the inverted chip somehow blown, so I have just got a new chip off ebay. Have fitted this to no avail. Still no backlight.
So the problem isn't the inverter.
It isn't the backlight itself as neither the new lcd or the old cracked lcd light up.
There doesn't seem to be a lid close switch on the laptop (or could I have missed it - do all laptops have one of these?).
Where else could the problem be? How else could I track down the problem?
