Archived from groups: comp.sys.ibm.pc.hardware.chips (
More info?)
On 02 Aug 2004 13:47:38 GMT, oceanradio@aol.com (OCEANRADIO) wrote:
>George:
>thanks for your helpful reply. I had not checked that forum but have since and
>there is a wealth of information along the lines of my problem.
>I have taken the laptop apart a couple of times and it kind of sounds to me as
>if the ribbon cable of your laptop may be the culprit. A technician told me
>that these often fail from use, i.e. raising and lowering the lid.
Yes, I suspected the ribbon cable at first but, without taking the lid
apart, just poking the cable, with a blunt object
, and raising/lowering
the lid doesn't affect the dimming syndrome - it needs the lid twist so I
suspect it's more likely the inverter or backlight tube. This system has
done a lot of travel and has been taken home every day - seems to be a bit
of a latter day status symbol that.
> And as
>cheap as they look, they aren't. I couldn't see how that could be the problem
>in my case as I flexed the cable and it makes no difference.
>I tried flexing my lid as you described but it didn't change anything.
>I'm still working on it and am slow to send off $90 or so for a used LCD, but
>if it comes to that, I will. I was so sure it was the inverter!
From what I gathered from a brief scout around the above site, the inverter
was a good bet but if it's not that, and there's no weird color offsets or
other obvious LCD artifacts, it's most likely the backlight tube. I also
gather the backlight is not available as a replaceable unit(?), though
someone claimed to have swapped one between two lids with some delicate
"surgery". I guess it boils down to an "upper half" replacement.
>This 600X was sold as reconditioned about two years ago and lasted about one
>year before this failure. It happened while I was using it and it wasn't
>dropped at the time. I failed during power up. Since it's my wife's laptop
>it's my job to fix it. This is on the top of the stack of things to fix. Just
>below is the IBM 390E that failed and caused my wife to buy the 600X. The
>problem there is said to be the system board and a replacement is on the way.
>Here's hoping that's it.
Good luck with it all.
Rgds, George Macdonald
"Just because they're paranoid doesn't mean you're not psychotic" - Who, me??