nomoresonys[USER="71977"]nomoresonys[/USER] when they short they all show about 16 ohms.
[USER="13553"]Davi.p[/USER] .. I tried desoldering one by one the diodes you...
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Thank you Davi.p . What you say is to desolder one after the other to see if the tv stays on in the end? You say you have seen this defect is it caused by baδ diodes?
Also since i have the same broken panel if fthat is the problem should i try to use diodes from the broken panel f they are the same?Last edited by burbutsalos; 12-13-2023, 04:31 PM.
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actually yes !! But i managed to do some more tests and it gets even more confusing !!!! I tried the testing points on the pcb boards .
What i get makes no sense to me at least. Testing for shorts on diode mode ido not get a complete shorting beeping sound from my multimeter but rather something like a pulse sound this happens when i test vss with all the ck 's 1-8 stv with all ck's vss with stv .
And the clocks amongst them also.
The tv stays on on this status with only a very fade black horizontal line in the middle of the screen .from the right side of the panel gradually...2 Photos
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Yes the mainboard is from a completely identical set with broken screen (same panel type same mainboard type ). I did some tests on the panel pcb,s realized that some set of capacitors (2 on each cof ) short after some time.
When you turn on the tv all is ok.
After the 1 minute time those caps start to beep (short) the display goes bad and the boot loop starts with the same symptoms only this time since something has warmed up the loop happens within a few seconds and not a minute as the first rime when the set is cold
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55" QLED QE55Q60T Turns on after 1 minute the picture goes bad and get in boot loop
Hello ,
The issue with this set is that it turn on just fine and after a minute or so the picture shows either vertical lines or turns half black and from that point on starts a boot loop.
If a let the unit to cool down for a minute the same pattern starts again. i had exactly the same mainboard as a spare and replaced it but nothing changed.
Any ideas what to check?...
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Re: LG 55sk8000 plb ..snow in the middle of screen but can see that picture exists th
Hi everyone... any ideas about the issue in the screen ? I am lost and domt know what to check. Any help will be appreciated
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Re: LG 55sk8000 plb ..snow in the middle of screen but can see that picture exists th
I did some tests .I know that the last one is not a correct one but i did it .
I fired up the TV got the expected picture.
I removed the right side ribbon , the one with the problem , and i got a correct half picture from the left.
I remove the left ribbon and i get a half white half black screen .
The white part is on the left side and gradually darkens and the right side stay black even the part that has the snow when working with both ribbons....
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Re: LG 55sk8000 plb ..snow in the middle of screen but can see that picture exists th
Please help guys .... Has anyone ever seen such an issue? I have been searching for days now and nothing comes up. Its like that cof is working but ..with noise....
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Re: LG 55sk8000 plb ..snow in the middle of screen but can see that picture exists th
Thanks for the info nomoresonys !!!
As far as i know after checking the panel model it does not seem to have any side cof's .
It seems to be with chip on glass at the sides
I watched the video very tricky job to do !!
But i see that the Tv there has problem all over the panel and the lines are smooth and not like the old time no signal snow
This is what is very strange here, I tried searching for pictutres over the internet with same issue as mine and i see...
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Re: LG 55sk8000 plb ..snow in the middle of screen but can see that picture exists th
thanks for the replies guys.
This model has no separate t-con. only mainboard.
All cofs from both sides are hot but not so much that i cannot touch them for a while.
As far as i am able to see the cof it seems clear .
I have not tried to dismandle the panel to see the cof from the panel side if it has any burns or black spots.
You think i should check that also?
@KYBOSH you mean the actual chip on film is gone bad?
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LG 55sk8000 plb ..snow in the middle of screen but can see that picture exists there
Hello everyone.
I have this TV set which has this issue. It shows a vertical bar im the middle of the screen.
The panel has 12 cofs and the problem seems to be on the territory of the first cof on the right side.
The tv fires up and you can see a good picture exept that vertical part where multicoloured pixels exist.
The strange thing there is that you can see behind that snow that it shows picture but as if there are these pixels in front so you cannot see clearly.
The effect is there even on a completely black screen.
The screen...
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LG 55UK6750 PLB ...Help Please
Hello every one . I have in my hands this TV. The status is...
Backlight ON Sound ON Display ...gone .
I tried the easy fix with tape but no luck. The best i could get after using tape on both sides of the ribon was a completely white screen. So the next step was to try find any kinds of shorted capacitors at first.
I found none on the panel boards with the power off . As soon as i turn the tv ON i get from both sides of the panel one capacitor going on each cof short . .
As soon as i remove the left side ribbon for example , the short appears only on the right side...
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Re: Samsung QE50Q50TAU No display &sometimes restarts
Thank you both for your answers Mr Angelos (patridaaa) and Mr. Nomoresonys.I did the tests with the power disconnected and i had the short. Unforunatelly and maybe because i am a complete newbie to this i decided to try removing one cap at a time test it and see if the short went off and then put it back on if not. I Started with the ones that showed less resistance.What happened was that after the removal of the 4th or 5th cap (..a few hours later ) , i plugged the tv on and heard i hissing sound and i burning smell... !!!...
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Samsung QE50Q50TAU No display &sometimes restarts
Hello, I have been trying to see what the problem is with this TV.
After doing some tests i found out that the must be some kind of short on the panel.
The problem is on the main side of it . By testing in didode mode i find a pair of capacitors on each cof short. The panel has 7 cofs so i can see 7 pairs of capacitors with problem.
This only happens when the tv is on and the cables to the panel connected. You can hear sound but ths screen is kind of ...dark blue.
Changing the channels turns the screen black momentarily and then the screen changes to dark blue again....
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