Gateway PA2 LCD backlight refuses to light up - even after new inverter and new LCD
Posted on 2008-09-29
I've replaced a lot of inverters in my day. This Gateway laptop was displaying a very dim screen, so I reflexively ordered and installed an inverter. The new inverter didn't fix the problem.
Instead of messing with the CCFL replacement, I decided to order a brand-new LCD. I installed it just now, and it has the same dimness problem.
Sometimes there is a switch that the laptop's lid depresses when it is closed. Once, I almost replaced the inverter, but I saw a piece of junk sticking the switch down. When I removed the junk, the backlight blinked on immediately.
I cannot find any switch like this on the Gateway. The keyboard bezel is smooth - no holes. Now what? What else could it be? I did not replace the video cable yet, but it is in good shape and no matter how much I wiggle it, I can't even get a blink from the backlight. With a bad cable, the problem should be intermittent.
Anyway, what do you think? Is there some sort of magnet that could have fallen out of the way?