Don,t be fooled into replacing your back light (display) by people who did.

Question

I found a few webpages on changing the light for pismo,s dimming display and got really excited because I am really handy as long as you can take it apart. I went through the whole deal and and got to my display out of the frame (top cover of laptop ) and began looking for the light. Well guess what, my lcd light was build in and then sealed into the frame. No screws or such, the only way to get to was to cut the housing of the display.
I found out that G3 laptops use a LCD,s from different manufacturers (samsung, philips, lg and you get my drift) which have their own methods of making a LCD panel housing. I would recommend that if you attempt such a project, make the instructions refer to your panel. It is a catch 22 situation since you have to remove the panel for that info.
By the way, I succeeded but it was not worth it. It took to much effort and time to cut the frame and reset the display to tolerance. one sixty four of inch off at various stages was serious enough for a redo of that. I finally must say that I got lucky (because I will not do it again for this display)

Answer 1

That brightness last about two months and then it starts to dim. Although i did replace the bulb, I had dropped the reflector and ran over it with ballbearing wheels that are on my lazy boy. The refector is thin stainless steel which is impossible to shape back to factory specs. So the bottom of my screen has various brightness of light that evens out about quarter of the screen up. That pismo had so many things needing repair (cpu was the final straw), that a I finally bought a used one on ebay for 175 dollar and the display is pretty good. The two bulbs run at 20 dollars and I think a pisomo display is less than a hundred, but then that might not be the brightest. You must have had a lcd from a manufacturer that is difficult to work with, ie. really tight fitting boots that need more than a gentle force and they break. Since there are at least six different companies that pismo uses there lcd display, failure or success cannot be predicted without enough stats on specific displays success and failures in home bulb replacement. I personally do well with things and found this to very difficult, this was to a take apart deal, but break apart at some steps, we all know stressed plastic broken will never fit right again. When i forced the bulb back in the lcd , I was not sure if it broke or not. That is not good to depend on luck. If you want to give it another shot (sometimes the challenge can take on a life of its own when no longer practical) you might consider heat shrink tubing instead. I have not done it but it is just a thought.
Note: these bulbs require a few minutes to reach max brightness, older scanner that used the same bulb had a warmup period.