Monitor / TV problem PC Hardware


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DatahopaForumComputer RelatedPC HardwareMonitor / TV problem



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Monitor / TV problem

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Offline Data Topic starter
United Kingdom Administrator
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My screen seems to have developed a fault, it has a row of what looks like dead pixels about 3/4 ways down the screen, restarting the PC and screen doesn't help, nor does unplugging the HDMI lead and plugging it back in.

Anyone got any thoughts? 
Posted October 16, 2013, 21:06:16 PM Logged

Offline Freddy
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You could try a dead pixel fixer on it.  It rapidly changes the colours in an attempt to kick them back into life.  I have no idea if that is the problem here.  I have a dead pixel that would never shift and a new one developed some months back, so maybe it's just an age defect.

Posted October 16, 2013, 21:43:47 PM Logged

Offline Data Topic starter
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Thanks for that, it didn't work but showed up an interesting thing, the dead row isn't there with a red screen but seems to be there with all other colours, weird  scratch-head   
Posted October 16, 2013, 21:49:38 PM Logged

Offline Freddy
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Yes I think it depends on what part of the pixel is dead...I think they are built up of RGB light sources like the way TVs were.  So it sounds like the red ones are working fine, just the others have died for some reason. I wonder why it affected them in a row though  scratch-head
Posted October 16, 2013, 21:59:08 PM Logged

Offline Data Topic starter
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Yeah it's odd, a whole row of pixels, just noticed that they still work with yellow too, seems to be worst on darker colours, the row is just black instead of greys for example.   
Posted October 16, 2013, 22:03:24 PM Logged

Offline Freddy
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Oh right a WHOLE row   Shocked  I thought it was just a little bit.  Well that's a bugger.  Must be a component failure or something. Have you got another PC you can plug in to eliminate that being at fault...the graphics card etc..

I'm grasping at straws to be honest.
Posted October 16, 2013, 22:11:42 PM Logged

Offline Data Topic starter
United Kingdom Administrator
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I have another screen I can try but it's not 1080 so not exactly like for like but worth a go.

I do have other computers but none of them have HDMI output and the screen is only HDMI, will have a play around and see if i can come up with anything but my gut feeling is the screen is dieing  Sad
Posted October 16, 2013, 22:17:53 PM Logged

Offline Data Topic starter
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Well I turned the TV back into a TV by plugging an aerial into it and the dead row is still there, it's the screen  Sad  bugger  Cry
Posted October 16, 2013, 22:37:27 PM Logged

Offline Freddy
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Oh dear, sorry mate  Sad

I am out of ideas.  How old is it anyway ?
Posted October 16, 2013, 22:39:06 PM Logged

Offline Data Topic starter
United Kingdom Administrator
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Thanks mate, I'm not sure exactly how old it is, it's either 4 or 5 years I reckon and to be fair it is on for at least 12 hours every day, the dead row isn't too bad and I can probably get away with using it at least for a while, might have to treat myself to a new 42 inch LED backlit screen for Christmas.

Posted October 16, 2013, 22:45:33 PM Logged

Offline Freddy
United Kingdom WWW Administrator
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I guess you got your monies worth then, considering the lifetime of a lot of electrical equipment (cough cooker cough). Hey you know what ?  You should get a 4K screen  Tongue
Posted October 16, 2013, 22:55:24 PM Logged

Offline Data Topic starter
United Kingdom Administrator
Posts: 4683
Rank: Certified

Had a look at 4k, it's a shame but a bit out of my price range.

Would probably end up with something like this, not too bad around £350 should do it.

http://www.amazon.co.uk/Panasonic-TX-L42B6B-42-inch-Widescreen-Freeview/dp/B00BMQA6ZA/ref=sr_1_3?ie=UTF8&qid=1381961345&sr=8-3&keywords=42+inch+led+tv

EDIT:
And wow only 44 Watts power consumption for a 42 inch screen.
Posted October 16, 2013, 23:11:48 PM Logged

Offline Freddy
United Kingdom WWW Administrator
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Looks good  Cool

Posted October 16, 2013, 23:20:44 PM Logged

Offline Data Topic starter
United Kingdom Administrator
Posts: 4683
Rank: Certified

HaHa, that cheered me up  lol
Posted October 16, 2013, 23:31:19 PM Logged

Offline Snowcrash
England Global Moderator
Posts: 2729
Rank: Certified

Dodgy transistor or poor connection on the driver chip.
These are bastards to replace. They are embedded in the flexible circuit board that connects to the screen.
If it's a poor connection, pressure on the chip could cure it.
If it's the chip dead on that line, then replacement of the chip including the flexible circuit board is required.

Phone the guy I talked about and explain it's the red pixel line. He'll give you an honest answer. He's the one who fixed Diesel's amp.
Posted October 17, 2013, 22:57:54 PM Logged
“I cannot remember the books I've read any more than the meals I have eaten; even so, they have made me.”

Ralph Waldo Emerson
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