Have a Sharp LC40LE831E that displays a image flickers then cuts out then displays then cuts out, all the while the backlights look like they're still on
Not able to do any troubleshooting as of yet, as i'm not home to do it.
here's a video of what's happening
[url]https://www.youtube.com/watch?v=tR8jdTca7a0[/url]
Any suggestions on troubleshooting or if anybody knows the issuehttps://Have a Sharp LC40LE831E that...still on<br />
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Re: Samsung Curved TV Purple Corners
Thanks Andrew for the info, could this be a manufacturing defect then?
More chance of Samsung doing something about it if it is?
Also, it is wall mounted, think it's a 50 inch...
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Samsung Curved TV Purple Corners
Friend asked me if I know the issue, I don't i'd of said a failing panel or main board fault.
Fails the screen diagnostic test, purple is present in the menus too.
Not got the model number to hand at the moment
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Re: KDL-40EX723 Dimmer Screen Top Right Corner
Just a bit of a update on this
Fiddled with the settings a little, set the Eco Power setting to low or high and setting the scene as cinema seems to fix the issue, I went for the low eco power, as I can still adjust the backlight to 5 to prevent flickering and still have half decent brightness.
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KDL-40EX723 Dimmer Screen Top Right Corner
Anyone able to provide some help with this before I begin taking it apart.
Basically the top right corner of the screen has became dark, sometimes if you leave it off for a day it'll kick back in but only ever lasts a hour tops.
Is this just dead/dying leds?...
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Re: GTX 570 Graphics Card damaged components
Thanks for clarifying. No not using any third party driver software, that was device manager assigning a driver from wherever (windows 10), ended up finding a older driver that works fine, had Infinite Warfare running last night at 720p normal textures for about 2 hours also done a few rounds of Unigine Valley, all seems fine.
I know the solder job isn't the best but rather than second guessing at a new Tantalum Capacitor thought it best to just get the original in place, the external legs are broken but...
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Re: GTX 570 Graphics Card damaged components
Sorry should of explained better, the black component has it's legs still attached to the board, all that was left was 2 small copper contacts either side on the actual component, couldn't solder wires to it reliably so went for a blob either side as the contacts are so small.
The missing capacitor next to it, pads are fine on the board, just needed the capacitor.
I've since found working drivers 353.30-desktop-win10-64bit-international-whql which recognised the card, just stress tested it...
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Re: GTX 570 Graphics Card damaged components
The smd parts have no labels that I can see anyway, the card is a PNY GTX 570, plugged it into my pc to see anyway, thought the worst that could happen is it wouldn't boot.
Card seems to work in a fashion, POST is centred in the middle of my screen, windows is the same and drivers won't install for it, NVIDIA drivers complain that no compatible hardware was found, plus windows driver updater complains of a missing line in the inf file, guessing it's not actually being recognised as a 570 anymore
...
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Re: GTX 570 Graphics Card damaged components
Ye, I have checked for shorts just gotta clean it up, I know the caps are all of the same value in that area, I just don't know what the value is, which is the problem, any ideas other than removing the other caps? (prefer not to if possible)...
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GTX 570 Graphics Card damaged components
Got this card from a friend, didn't notice it was damaged until I came to fit it, luckily didn't get to fitting it.
2 of the components have lifted off, 1 is the black thing labelled as 330 0n7pe , no surprise google returns nothing really on it, the legs on this have snapped but the contacts are still there and i've managed to get it to stay in position with a solder blob either side and does now read like the rest on the board.
There's a small SMD capacitor (right next to the soldered part) that's missing that i've no idea the value of, which is my main question really,...Last edited by anotherdude; 11-14-2016, 08:42 AM.
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Re: LG 42LE4500 Sporadic Black screen
35mm thickness according to the LG website, so I'd say so...
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Re: LG 42LE4500 Sporadic Black screen
So can LEDs fail in this way, I was under the impression that if they fail, they stay off permanently.
TV's now black screening every 10 seconds or so, has progressed to this since earlier today (posted this thread without speaking to her again). She did manage to check the picture settings though
Backlight 70
Contrast 100
Brightness 50
No idea why the contrast would be at 100, can't get any further until tomorrow now.
Thanks for the information...Last edited by anotherdude; 04-15-2016, 03:10 PM.
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LG 42LE4500 Sporadic Black screen
My sisters LG started playing up about January, with the screen going off and sound still being present after about a hours worth of viewing.
Brought it to my house to have a look (back in feb) and couldn't replicate the problem in the week I had it, with the TV being left on with a source connected for upto 12 hours at a time.
Now when she collected it from me again and took it home the problem didn't reoccur, that was until the past week or 2 that it's now came back again.
Anyone any idea on what this could be and why it disappears randomly?Last edited by anotherdude; 04-15-2016, 02:04 PM.
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Re: Samsung PS-50q96HD Clicking
Ye, thinking to give it a miss tbh, never been much good at SMD stuff....
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Re: Samsung PS-50q96HD Clicking
Some more info, removed the power board, can see theres damage to the back of the board also right next to the damaged/blown FET, looks like the same components off the many repair kits i've seen.
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Samsung PS-50q96HD Clicking
OK A neighbour has asked me to have a look at there TV, can here the relays clicking away constantly, can see what looks like a blow FET and some bulging CAPS.
Anyone provide any help on this, can see various repair kits for these models, is it safe to say if the FET is damaged it's taken out other components too....
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