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Resolved Question

New Toshiba screen cable shows artifacts

Aug 8, 2018 12:48PM PDT

Hello everyone,
I am facing a problem with my Toshiba Satellite C50B-14H.

Suddenly when the laptop's top cover was raised above the half-open position the display would go dark.
I opened the laptop and the screen cable appeared to be damaged near the right hinge. Even with the top cover lowered if I applied pressure at the specific point the display would turn off.

I replaced the screen cable with an identical new one (appropriately placed). As a result, when the top cover was more than half-opened the display was on but had many vertical red lines appearing. It appears that the new cable was also pressured by the hinge even though there are plastic "guides" to position the cable correctly. I decided to "unhook" the cable from these plastic "guides" near the hinge so that the cable would not be strained or pressured and be a bit more free. This seemed to work.

The next day when I turned on the laptop again, the vertical red lines reappeared even more so. I can't even see the screen now.

Does anyone have any thoughts / suggestions as to how I may proceed fixing this?

Thank you for your time

PS. External monitor works fine, no apparent other GPU issues.

Discussion is locked

Aristeidisp has chosen the best answer to their question. View answer

Best Answer

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Try one more time.
Aug 9, 2018 10:53AM PDT

This sounds like the usual pain I've run into with such cabling. Sometimes you have to get creative with protecting the cable with kapton tape or your choice of product. But my bet is you'll have to do it again with a new cable and your best ideas on protecting the cable from chafe.

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Damaged cable
Aug 10, 2018 4:48AM PDT

I ended up taking it to a nearby IT shop since I was in a hurry to have it fixed. They said the screen cable was cut by the hinge due to improper positioning. They can repair it so that a new one won't be necessary.
Thank you for your input, I will keep that in mind for next time.