Re: Computer Question

Posted by bo on December 22, 2007 at 14:23:38 from (12.75.106.89):

In Reply to: Computer Question posted by John T on December 22, 2007 at 08:36:53:

I read your stuff with much interest. Let me see if I can return the favor. Some have mentioned it. If she can still see the items on the screen, then you can probably isolate it to the screen. One of the below suggestions is to hook it up to a external monitor and that'll rule out the innards and operating system. If it operates the external monitor, then all you need to worry about is the LCD and it's components. The LCD is on unit, at it's very base is a 6" fluorescent back light and it gets it's power from an "inverter". This inverter is located just below the LCD and is a flat, 6" long by 1" or so circuit board. If the screen is very dim and you can just barely see the icons on it, then chances are good that it's the inverter. It also could be the back light. All these items are replaceable at a reasonable cost.

Depending on symptoms, the back light should be about $10 and the inverter about $20 and the LCD...who knows. Anyhow,,,,I just repaired a Toshiba by replacing the inverter...got it from our favorite country, China, for $18+9 for shipping..installed it and it's fine. The back light would have been some cheaper. The LCD is expensive. I got the inverter off Ebay.

Now...most laptops have a "bezel" made of plastic which "frames the LCD. Most bezels have two little screws under a sticky cover..these are taken out and then you'll need to find the plastic clips that hold the rest of the bezel in place. The bezel snaps off and will snap back on when you're done.
I would.....search "replacing inverter in xxxxxxxx modelxxxxxxxx laptop by using google. I'll bet that' you'll find a blow by blow picture description of how to do it. Now, you'll need to find the source for inverters and back lights and god forbid, the LCD. All this stuff just plugs in and the inverter may have a tiny screw under a sticky cover holding it in.

It's not brain surgery to do and it'll take about an hour the first time and now I can do it in 15 minutes...if I had the parts. A repair shop, would just pull it apart and change parts until they hit on it. Try one and if it don't work out, put it back on the shelf. You can't, so you'll have to start with the cheapest and work up. It is worth while to at least try the inverter and the back light as these shouldn't cost much. I don't think it's the LCD.
Something might have jarred and it could be either of the two I mentioned.
Oh, the back light isn't really visible..follow the wires..they should be on the right and coming out of the inverter and the back light should slide into a slot under the LCD.
If I can do it, you sure as heck can.

The Toshiba that I fixed is still working and Toshibas have been notorious for crappy inverters. Luck to you.

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