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Need help diagnosing my 7500's LCD problem

post #1 of 4
Thread Starter 
The lcd (15.0" SXGA) on my dell 7500 just recently stopped working. When it boots up, the blank screen turns a dull white. That's about it. However, attaching an external monitor to the laptop works fine. I'm assuming this means that my video card is fine and it has to be a problem with either the LCD itself, the inverter, flex cable, etc.. I tried reseeding all the cables etc.. but still having the problem.

I was thinking about finding a used LCD flex cable on ebay and seeing if replacing that fixed it, however I'm realizing that I can't be sure that's the issue. I'd rather not keep shelling out $20 here and $30 there hoping that I pick the right part to replace.

Does anyone have any experience with this issue? I've considered bringing it in somewhere to get it diagnosed, however I'm not sure the cost is worth it (the laptop is prob. only worth $150 or so)

Thanks,

rubes
post #2 of 4
Well, I can assure you it has nothing to do with the inverter or backlighting. The problem is with the LCD, cables, or connections to the video card or motherboard.

This seems to be a big problem with dells, and I think you will find that installing a new cable will solve the problem. Cables can't be too pricey, give it a shot and let us know.
post #3 of 4
Thread Starter 

Thanks Compman. I'll try replacing the LCD flex cable

eom
post #4 of 4
Before you do, take yours apart and make sure you get the right one. On my laptop there is one for the inverter and one for the LVDS signal. I do not know how your model is, but just make sure you get the right one. For all I know, your inverter may be down below near the MB.
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