Author Topic: LCD 4K TV horizontal stripes?  (Read 2528 times)

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Offline onesixrightTopic starter

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LCD 4K TV horizontal stripes?
« on: January 28, 2017, 10:36:07 am »
Hey Guys,

Below a PIC of a broken 4K TV, it has some horizontal stripes (top to bottom).

Anybody a clue what the probem might be? Any change of a quick fix :-/O or is this a a typical stay-away-project  :palm:?
« Last Edit: January 28, 2017, 10:39:11 am by onesixright »
 

Offline KhronX

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Re: LCD 4K TV horizontal stripes?
« Reply #1 on: January 28, 2017, 01:44:08 pm »
That photo's a bit on the tiny side, and... Any chance you could take one with a solid white background?
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Offline wraper

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Re: LCD 4K TV horizontal stripes?
« Reply #2 on: January 28, 2017, 01:48:31 pm »
Yeah, quick fix by replacing a whole LCD panel as it is mechanically broken.
 

Offline Armadillo

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Re: LCD 4K TV horizontal stripes?
« Reply #3 on: January 28, 2017, 02:52:52 pm »
LCD impact damaged, it's a stay away project.
 

Offline Codebird

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Re: LCD 4K TV horizontal stripes?
« Reply #4 on: January 29, 2017, 12:08:13 am »
It's possible - just possible - that you might just have some bad solder joins on the PCB, and a wave of a hot-air gun over them will fix it. But that's a long shot - the chances of it working are a thousand to one. You can give it a try, but more realistically it's all but certain that the entire LCD will need replacing. Good luck finding one of the exact same type.
 

Offline amyk

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Re: LCD 4K TV horizontal stripes?
« Reply #5 on: January 29, 2017, 12:41:19 am »
Connections (they are very fine-pitch) between LCD glass and driver ICs have failed. Maybe a bit of pressure and heat may fix them, but it's unlikely to last.
 

Offline wraper

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Re: LCD 4K TV horizontal stripes?
« Reply #6 on: January 29, 2017, 08:42:49 am »
Connections (they are very fine-pitch) between LCD glass and driver ICs have failed. Maybe a bit of pressure and heat may fix them, but it's unlikely to last.
If you look below the stripes on the top part, there are obvious cracks in the glass along the whole screen.
« Last Edit: January 29, 2017, 08:45:18 am by wraper »
 

Online kripton2035

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Re: LCD 4K TV horizontal stripes?
« Reply #7 on: January 29, 2017, 08:59:43 am »
a 4K TV is likely still under warranty, you should use it to repair this problem.
of course if the lcd is broken, the warranty will not work...
 

Offline onesixrightTopic starter

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Re: LCD 4K TV horizontal stripes?
« Reply #8 on: January 29, 2017, 09:03:23 am »
Thank you all.

It was for sale, bad pictures. Wasn't sure what to look for, thought maybe just something with the display driver.

With the comments here, a walk-away project.  Case closed  ;)
 
Thanks for the feedback!  :-+
 

Offline Rasz

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Re: LCD 4K TV horizontal stripes?
« Reply #9 on: January 30, 2017, 02:50:38 am »
you can clearly see whole left edge is cracked
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