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Lcd TV: crack or mainboard damage?

post #1 of 6
Thread Starter 
My grandparents TV does this:
http://youtu.be/I0KSs-98kU0

What could it be, i can't find any visual cracks frown.gif
Would it be internal crack or mainboard damage?
post #2 of 6
Looks like the board failed.

Does it do it while using other inputs, including the analog ones?
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RYZEN
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OFFICE PC
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20TB_HOMENAS
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CPUMotherboardGraphicsRAM
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MonitorKeyboardPowerCase
Generic Korean 32" 4K Generic mechanical rainbow LED lit SeaSonic G Series 550-Watt AZZA Helios 910 CSAZ-910 
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Logitech G500 T1 24BIT Tube USB DAC 
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post #3 of 6
Thread Starter 
Yes, at every input,
HDMI, Analog, VGA, SCART, everything.
post #4 of 6
If you're lucky there is a separate board with the inputs and a processing chip that connects to the mainboard. You might be able to find a used one for cheap on our favorite auction site. I had to replace the video input board on a Samsung monitor not long ago for video corruption reasons, though in my scenario it only failed on analog inputs.

EDIT: With no input at all and the onscreen menu displayed, does it still occur? If so, it's probably the mainboard and not the video input board (if separate)
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Logitech G500 T1 24BIT Tube USB DAC 
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RYZEN
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OFFICE PC
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20TB_HOMENAS
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CPUMotherboardGraphicsRAM
Ryzen 1700X ASRock Fatal1ty X370 Professional Gaming XFX 390x Corsair Vengeance LPX 64GB DDR4 
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A bunch of swappable SSDs LG BD-ROM Thermaltake CL-P039-AL12BL-A Contac Silent Windows 7 
MonitorKeyboardPowerCase
Generic Korean 32" 4K Generic mechanical rainbow LED lit SeaSonic G Series 550-Watt AZZA Helios 910 CSAZ-910 
MouseAudio
Logitech G500 T1 24BIT Tube USB DAC 
CPUMotherboardGraphicsRAM
AMD Athlon II X2 255 ASRock 970DE3/U3S3 Radeon X300 Kingston KHX1600C9D3/4GX 
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post #5 of 6
Thread Starter 
Also with no input.
post #6 of 6
Thread Starter 
I just found this while taking a look at the screen with my smartphone's LED light.
But its very smooth and curving, it starts at he bottom right about 5cm from the bottom, it enters the screen, then smoothly curves and goed up to like almost top of the screen.
But the line is ultra smooth, i rather think its a hair then a crack. The line goes left and right and not in a straight line.
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