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LCD TVs - LED

LCD TV Noblex 40, Does not turn on

Mtulli
Mtulli
11
hace 5 años
hace 5 años
hello good, I tell you I have this tv in the workshop and not even turn on the stand by. It is a noblex 40LD875FT. Cause: After a lightning, it stopped working. He had an inflated 330uf 35v capacitor which he changed, but he still didn't turn on. 300v of continuous arrive at the transfo, but this one does not osila. It has an integrated TEA1733T, measured and between pin 1 and 2 there is zero volt, also change the zener (z3) and the layer (c4) just in case but nothing! I got the diagram of the power supply but I can't quite understand where it gets the 27v that it needs to work, I leave the diagram to see if they can give me a hand Diagram: https://drive.google.com/file/d/10i1T5xrG71hswzp59bGEpUGpP7gRxZQq/view?usp=sharing Thank you!
dni20
dni20
1.120
hace 5 años
hace 5 años
Check r5 of 10k and dz5 .... but it is very likely that the integrated one is damaged .... greetings.
Mtulli
Mtulli
11
hace 5 años

Thanks Dni 20 was indeed the integrated tea1733 also change the diodes z3 and z5 and it was working perfect!

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dni20
dni20
1.120
hace 5 años

I'm glad Friend.

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