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LCD TVs - LED

LG m.32LB520B-UA vertical stripes

joseluisgonzalez
hace 5 años
hace 5 años
Greetings this time came this LG with vertical stripes, I suspect the inverter left photo for  to see.
billy58
billy58
2.182
hace 5 años

Hi excuse me that's drama on the panel

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joseluisgonzalez
hace 5 años

Sorry bylli58 I did not understand?

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billy58
billy58
2.182
hace 5 años

That the problem is that the display is wrong

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joseluisgonzalez
hace 5 años

Thank you tobiastv, when I watch the video I am inclined to think that the tcon is the problem, I doubt that it is the fisplay because of the Flexes that connect with it in very good conditions, I support me with the diagram to review this tcon

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TELSO
TELSO
1.983
hace 5 años
hace 5 años
If the retroiumination is on, and it is because otherwise you would not see the stripes, the inverter is discarded. The problem is in the Tcon, flex cables between Tcon and lcd panel or the lcd panel itself.
joseluisgonzalez
hace 5 años

Thanks telso, apparently if it's on the tcon card, check Flex from Main to tcon and it's fine, check voltages on tcon and apparently they're fine, but I'm missing the diagram to ratify all the voltages, if you provided me with the diagram of the agrarianness

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TobíasTv
TobíasTv
13.721
hace 5 años

Hi Telso Darling, Jose, I collaborate with a video
https://www.youtube.com/watch?v=5TKUISAuDRA
I leave you two likes of luck :)

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TobíasTv
TobíasTv
13.721
hace 5 años
hace 5 años
Jose take the doubt if it's the display I leave you a practical I will indicate a practice, always very carefully and fiddles with the unplugged TV try disconnecting one of the two flexes that go from the t-con to the display and test if you have an image in the middle of the screen, if this does not happen connect it (eye, well connected) and disconnect the other and try again, if you see image in the middle of the screen is the bad display, I can indicate a practice to solve it in the best case
joseluisgonzalez
hace 5 años

TobiasTv, I can't do that test since the main cable plug goes directly to the fisplay buffer send photos right away

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joseluisgonzalez
hace 5 años

Mr. TobiasTv does not give me the option to upload photo

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TobíasTv
TobíasTv
13.721
hace 5 años

I touch the hard figurine

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TobíasTv
TobíasTv
13.721
hace 5 años

you upload photos in your question, with the little paper you edit

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TobíasTv
TobíasTv
13.721
hace 5 años

just as accurate, colleague Telso told you

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billy58
billy58
2.182
hace 5 años
hace 5 años
Hello I already told you that was the display greetings
TobíasTv
TobíasTv
13.721
hace 5 años

it's true, my like goes

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TobíasTv
TobíasTv
13.721
hace 5 años

maybe it can be fixed

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joseluisgonzalez
hace 5 años
hace 5 años
TobíasTv
TobíasTv
13.721
hace 5 años

It is new, yesterday I fixed one like that but it was bgh brand
going back to the topic, two questions
1 do you have an oscilloscope?
2 you can show an image of the TV with video to better understand the fault, I am interested to know if the lvds information reaches the panel, so the oscilloscope

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joseluisgonzalez
hace 5 años

If I have an oscilloscope at what point do I check the lvds signal?

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TobíasTv
TobíasTv
13.721
hace 5 años

So what happened to you?

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TobíasTv
TobíasTv
13.721
hace 5 años

look at the first minutes indicate the measurements of the lvds pairs
https://www.youtube.com/watch?v=AF3MRfHY4R4

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joseluisgonzalez
hace 5 años

Thank you Mr. TobiasTv, the video helped me a lot, check the lvds signal and if it is present at the exit of the tcon card, voltages are also good, the conclusion is a display in poor condition.

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TobíasTv
TobíasTv
13.721
hace 5 años

I uploaded the code on the display board, maybe we'll find it back :)

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