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sandes luis daniel
hace 5 años
hace 5 años
Good morning I have a TV of 29 noblex model, 29TC676f, this tv is driving me crazy because I can not find the fault, on the board, it has the number 1LG4B10Y0030A, I received it because I did not turn on when I opened the fuse jumped The resistance R602 of open ceramic and the ptc bad, I change everything and now when plugging it in and wanting to turn it on, it turns on the front LED for a second, clicks and turns off and does not turn on more, change the optocoupler, the IC 601A voltage regulator, the zener diode 616, varistor 601, resolves the IC of the vertical, that of the horizontal, the LA76933, the memory, electrolytic revice, zener and rectifiers and nothing, please I need help. From already thank you very much
franciscovallarta
hace 5 años

Start by commenting on the bmas voltage when connecting and if it is lost.

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sandes luis daniel
hace 5 años

Good. Now I measure thanks

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luis tartaglia
hace 5 años

Deploy the pin where the + b arrives in the flyback and measure tensions and comment

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luis tartaglia
hace 5 años

The tv is being protected. Something short must have. All output voltages of source comment.
Also as proof of the source and see if something manifests on the screen. Focus on ENVEL + B SERIES by the 200w flyback pin. And disable pwfail

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sandes luis daniel
hace 5 años

Thank you

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franciscovallarta
hace 5 años

Sometimes a postman despairs me, who does not comment on what he is asked for, gives the impression that he does not know how to measure tensions, just test components and change them, so nothing is repaired just with a stroke of luck.
Sandes colleague tensions. Do not delay this repair !!!

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luis tartaglia
hace 5 años

We have the fransisk to blame. That we provide without technical information accordingly. Model and tv chassis.
From now on I will only try to help with what little I know, to whom I post accordingly. That respect the rules of the forum.
We will see fransisco who joins me the most. .
regards

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sandes luis daniel
hace 5 años

What arrogances that are surely you were born knowing is true I do not have exoerience and the truth that you do not collaborate much to help beginners like me, that little spirit of helping have us two, two thanks to God, not all are like you two if it bothers you that I I do not know how to measure or I do not know how to explain myself well for what you answer for what you think if you do not feel like helping you Luis always answers so you see that you are a genius and you were born Francisco knowing that it hurts that there are people like you in this forum so good. Thanks the same for calling me stupid and incapable but delicately, to

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nicomena2015
nicomena2015
9.501
hace 5 años
hace 5 años
Hello colleague: if it is the LB5A -... chassis, the first thing is to remove the Q432 salt-hor- from the plate ... then to verify source regulation connect a 60-75w filament lamp between the + by mass. ..that is between the positive of the C664 and ground ... after power and see if the voltage of the + b stabilizes at 140v ... check the line of audio voltage if there is no short ... it is convenient q, change the C664 of 220mfx160v on the + b line ... check the vertical lc if it is not short ... of q, voltage is the zener D616q. change ... according to the scheme is 18v ... if the source does not start, check the secondary ... diode capacitors and see if there is no short component ... measure in the C609 of 270mfx400v in the primary of the source if the line voltage is maintained ... check the error amplifier lc601-SE-140NL .... greetings !!!
sandes luis daniel
hace 5 años

Thank you friend i will follow those steps

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sandes luis daniel
hace 5 años

Thank you to those who comment with good intention I tell you I studied at a state school that they don't teach you much I learned more from books and from you and videos and for economic reasons I started to repair, maybe without the necessary experience but I never screwed up the client when I didn't I send it to another colleague and have received many TVs from experienced people like Francisco and Luis that when the client tells him that he does not think that the repair is expensive, he finishes breaking them or takes away some component and I with my little experience and ignorance never I would. Thanks again for helping the new ones.

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nicomena2015
nicomena2015
9.501
hace 5 años

hello colleague Sandes ... do not be angry ... what happens is that, each colleague has a different way of expressing himself ... we all think from below as you are doing ... our motto in this forum is to try to To help the q, I need a technical suggestion ... I in my case understand those who just started or already have a previous study ... making some suggestion as simple as possible so that the applicant can understand ... have pacencia and go ahead with your studies ... and the experience will come slowly ... we are here to help you .... greetings !!!

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sandes luis daniel
hace 5 años

Thanks a hug

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luis tartaglia
hace 5 años

It has been part of the forum for more than 7 years. It is not the first time they have indicated this or that. If you know.

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sandes luis daniel
hace 5 años

I don't know how to measure

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luis tartaglia
hace 5 años
hace 5 años
. sandes luis daniel What superb that you are surely born born knowing it's true I don't have exoerience and the truth is that you don't collaborate much to help beginners like me, that little spirit of helping have us two-two thanks to God not all are like you two if it bothers you that I don't know measure or don't know how to explain to me what you answer for what you think if you don't want to help you Luis always answer this way you look like you are a genius and you were born Francisco knowing that it hurts that there are people like you in this forum so good. Thanks the same for calling me stupid and incapable but delicately, a . Hi Luis. You are wrong ugly with what you say. Perhaps you were not told what to measure or tests to do. Is that not help for you? Who has the TV and who wants to fix it? Well, you. I believe that we try by this means, the Internet to help you. That is not easier. Or do you think so? You should not have time for measurements or tests. But if you have it to treat those who try to help you badly. And we are not geniuses as he says. We only know the basics to face a repair. You, with your well-done technical report, place us better at the fault. Or giving the results as suggested. Because we are not fortune tellers. Nor did we report that report. And that does nothing. Just insult. because instead of insulting you do not take that valuable time to do the suggested and comment on the results. In your question you do not inform if you are technical or not. Or we also have to know how far your knowledge goes. The recommended is the basics. If you do not know how to do that you will not repair anything. it is studied. That study gives you a theory which you apply later in practice. It seems according to your comment to lack all theory. So talk about the practice. It is you who does not put ourselves in our place. I am not a teacher. I just try to help with how little I know. Wrongly many times. I need to be born at least once more to try to be A MASTER. I don't know if you'll understand this. If we have to be honest. I ask him. How do you want to fix something if you don't know? That is the pure truth. This is a nice forum but unfortunately they shave it. You do it yourself by not reading its regulations. And if you read it, you don't respect it. nor to those who participate. As in this case. insults Grievance ELECTRONIC STUDY It is not written in capital letters. It is understood that one shouts. My intention is to advise you what to do. And you will see that everything changes. And it will repair many things. Many times without asking for help. And when you can't be sure, go to the forum where your detailed technical input will shine. And you will see that among many things are repaired. From Tucumán My greetings P.S. You saved yourself Nico did not insult you. [list] [*] [/list]
sandes luis daniel
hace 5 años

Do not insult anyone dive me an insult in what, I said and I give you the reason I only said that if you see that I do not explain well or do not indicate what you want, do not answer me so that you lose time, if you are a phenomenon. And don't instigate others not to answer that it's bad milk. The same is true when I talk to a guy like you who doesn't want to understand, I have been in the forum for years and see if I ever argued with someone on the contrary I was always grateful. But people like you, because they have been the owners of the forum for a long time and urges others not to answer people you don't like,

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luis tartaglia
hace 5 años

Share TV repair with the forum.

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