Hi,
Just wondered if there was a way to properly test whether the backlight of a laptop screen is functioning properly. We have a spare test screen in our workshop that we can plug into the inverter of a laptop to find out whether it's sending power or not, but we'd also like to be able to send an electrical signal to the backlight of a screen to see if it powers the backlight on.
Anyone got any hints? Anyone know what we need to send to a laptop screen to get it to power on properly?