Re: lg 50pb560b blinking red light only
Good evening, I had a similar problem with the same model. By checking the Y-SUS board, I discovered a 30F133 in short circuit. I replaced it and turning on the TV, it started but the screen was flashing. No image was displayed, no sound, not even the logo at startup and the led of the logic board did not blink. By removing the LVDS ribbon, the led of the logic board turned on and no picture always. The + 15V and + 5V voltages are present and stable on the test points near the Y-SUS transformer. I read somewhere that you can do an automatic...
Le Fils du Boulanger
Member
Last Activity: 05-08-2022, 03:19 AM
Joined: 02-24-2019
Location: Libreville
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Re: Problem with my Plasma TV LG 50PB560B
Thank you for your help pleaseLeave a comment:
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Re: Problem with my Plasma TV LG 50PB560B
Photos of the back of the tv...Leave a comment:
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Problem with my Plasma TV LG 50PB560B
Good evening, I have a plasma TV LG 50PB560B that did not light anymore. There was just the red LED on when I turned it on. I suspected the Y-SUS card. Indeed, controlling, I found a transistor 30F133 shorted. I replaced it with IRG7R313U. When I turn it on again, the screen lights up and then stops almost every second and it's repeated. No OSD display, no sound either. The voltage Vy oscillates between 0V and 5V. Here are the few pictures of the TV that I could take.
Thanks for your help. -
Re: LG 50PW451 black screen, no sound.
I can't see the connector you talk about. Can you send me a photo?Leave a comment:
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Re: Téléviseur samsung ME46A pas d'image, pas de son, power led ok.
I checked the pin. It seems good....Leave a comment:
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Re: Téléviseur samsung ME46A pas d'image, pas de son, power led ok.
Yes, but nothing for my Model. So, when I power on the tv, the command pannel does not react. I can't stop the tv uswithing the command pannel. I replaced the main board by a working one, I had the backlight on the command pannel worked goog....Leave a comment:
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Re: LG 50PW451 black screen, no sound.
Picture...Leave a comment:
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Re: LG 55LF5700-UA.CUSDLH - Black Screen, can see image with flashlight test
Merci pour ces infos Unspun01. Nullement offensé.Leave a comment:
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Re: LG 55LF5700-UA.CUSDLH - Black Screen, can see image with flashlight test
Open your TV and try to access the LEDs. Attention, very deliquate operation because it will remove the screen. As soon as it is done, remove the light diffusers from the LEDs. Put your multimeter in the diode test position and check if each LED is lit. This will allow you to detect LED bares to be changed. You can bridge faulty LED terminals, the ultimate solution that will give you dimly lit areas on the screen.Leave a comment:
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Re: Téléviseur samsung ME46A pas d'image, pas de son, power led ok.
Hello, there is no schematic for this model on the link. An other solution? Please...Leave a comment:
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LG 50PW451 black screen, no sound.
Hi. I have a 50 inch LG plasma. No picture at startup, no sound. The controls go well, they are done with the remote control or on the front panel of the TV, they seem to go well. The power indicator lights up. The voltages indicated VA = 55V; Vs = 205V are present on the power supply unit and on Y-Sus. But the Control Card flashes [B]short-short-long-short[/B]. What does this code mean?Hi. I have a 50 inch LG plasma. No picture at startup, no sound. The controls go well, they are done with the remote control or on the front panel of the TV, they seem to go well. The power indicator lights up. -
Re: Téléviseur samsung ME46A pas d'image, pas de son, power led ok.
Merci DXseekerMO. Je vais ouvrir le lien et je vous reviens.
I'll open the link and I'll get back to you.Leave a comment:
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Re: Téléviseur samsung ME46A pas d'image, pas de son, power led ok.
Thank you DXseekerMo.
Indeed, I also think that the power supply is ok. When I disconnect the T-con from the main panel, I have no backlight. Is there a component or IC on the main board that can cause this? Does anyone have a schema?Leave a comment:
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Re: Téléviseur samsung ME46A pas d'image, pas de son, power led ok.
Merci DXseekerMo.
En effet, je pense que le bloc aussi que le bloc d'alimentation est ok. Lorsque je déconnecte la carte T-con du panneau principal, je n'ai pas de rétro éclairage. Est ce qu'il y a un composant ou un CI sur la carte principale qui peut causer cela? Quelqu'un aurait-il un schéma?Leave a comment:
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Téléviseur samsung ME46A pas d'image, pas de son, power led ok.
Bonsoir, j'ai un téléviseur Samsung ME46A. Led de mise en marche clignote 5fois à la mise sous tension puis pas dimage, pas de son. Quand je déconnecte la carte main BN41-01687A, j'ai le backlight qui s'allume. Je suppose main board en cause. Ya t il possibilité de la réparer? -
Téléviseur samsung ME46A pas d'image, pas de son, power led ok.
Bonsoir, j'ai un téléviseur Samsung ME46A. Led de mise en marche clignote 5fois à la mise sous tension puis pas dimage, pas de son. Quand je déconnecte la carte main BN41-01687A, j'ai le backlight qui s'allume. Je suppose main board en cause. Ya t il possibilité de la réparer? :pleurs:Last edited by Le Fils du Boulanger; 02-24-2019, 01:15 PM. -
Re: New Members - please post your introductions here
Slt à tous. Je suis Armand, Originaire du Gabon (Afrique Centrale). Je m'intéresse beaucoup à la maintenance électronique et informatique depuis 5 ans et je compte ouvrir mon petit atelier. Je viens ici pour compléter mes connaissances et partager également les miennes dans la mesure du possible, mais aussi rencontrer de nouvelles personnes. Je suis très interessé par les sujets évoqués sur cette plate-forme. Merci vraiment aux initiateurs et longue vie à badcaps. Toutes mes excuses aux membres pour le fait que je...Leave a comment:
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