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Posted by bstretch on April 9, 2008, 9:27 pm
Please log in for more thread options > bstre...@mindspring.com typed on Thu, 3 Apr 2008 16:56:32 -0700 (PDT):
>
>
>
m,
> >> bstre...@mindspring.com typed on Thu, 3 Apr 2008 12:27:41 -0700
> >> (PDT):
>
> >>> MyDellInspiron4150had what looked like the usual bad inverter
> >>> problem so I replaced it. Now the backlight lights up for maybe 1
> >>> second, enough to briefly see the BIOS startup screen, then goes
> >>> dark. I can see the faint unlit display so the panel works. I'm
> >>> stumped. Before I give up and strip it for parts, anyone have any
> >>> ideas? External displays work perfectly.
>
> >> Same thing happened to my second Gateway MX6124. Then I bought a used
> >> inverter from eBay and it worked fine for a few weeks and now it
> >> might lite up or not. Depends on how it feels. I'm just guessing
> >> here, but the lamp might be drawing a bit more than spec. Thus
> >> taking the inverter out in a short time.
>
> >> I did about 6 months ago find a place on the Internet that rebuilds
> >> inverters better than original they say. Kind of pricy too. Mine for
> >> example they said would cost 80 bucks. But I am seriously thinking of
> >> it. If you can't find it, I'll try to find it again when I have some
> >> free time.
>
> >> --
> >> Bill
>
> > Does that imply that replacing the lamp might fix things? =A0I'm not
> > sure if I want to try that though.
>
> I wish I could tell you. As my guess is both of them may need to be
> replaced right now. Some day it will bug me enough and I will find out.
> Right now I use it with an external monitor.
>
> --
> Bill
I took apart the screen to swap in a new backlight and it turns out
that one of the wires had broken off the old backlight. Sometimes it
made contact, sometimes it didn't. Must have been a bad soldering job
to begin with. That was probably the only thing wrong but I swapped
in the new backlight anyhow and now everything is working.
Swapping backlights is an absolute PITA. I had help. Swapping
screens would have been a saner approach in retrospect, but having a
brand new bulb in there soldered correctly has its merits.
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