⚡ Descuentos en cursos en video - Lleva tu aprendizaje técnico al siguiente nivel y aprovecha precios especiales antes de que termine la oferta. 🔥 Aprovechar oferta ahora 🔥
LCD TVs - LED

lg 42 led tv you see circles on the screen

lautaro
lautaro
23
hace 5 años
hace 5 años
Hello good afternoon to the whole team of yoreparo and all the users who give a hand, today I have a question to see if they guide me; I have a lg42lb5600 led tv that did not leave image but if I had audio I got to the bottom of the cause and had 6 LEDs burned, this TV uses 6v 2watt led of 3.5 x 3.5mm, since they were burned LEDs of different strips I loved very much to change the complete strips that were 5, so I chose to buy the single LEDs of the same characteristics, replace them, the TV turns on, gives an image but when observing the diffuser circles appear on the screen, I commented that the diffusers hit them again in the same way they were and the circles that are translucent are not punctually of the LEDs that replace, for this reason it is my query, if you give me an orientation I will thank you greetings. I tell you that I dismantled the TV again and the diffusers are fine, so I didn't take any off
vallin401
vallin401
1.863
hace 5 años

and the separating pinchitos that it takes to keep the panels separated from the led?

Responder
lautaro
lautaro
23
hace 5 años

Thanks for the interest, all the dividers are installed as they were

Responder
Jose Fernandezelectronico
hace 5 años

Hi Lautaro, about 3 hours ago I sent you a comment that I don't know if I wrote it in the corresponding box. Regarding the same I tell you that the first lamina that goes over the LEDs, the thick white one acts as a diffuser of all the LEDs and must go with the rough part towards the LEDs, but does not fulfill this function.

Responder
lautaro
lautaro
23
hace 5 años

Jose Fernandez thank you very much, for the hand you gave me as well as all those who collaborated, it was like that because of an oversight I misplaced the sheets and they made more light out, thank you very much.

Responder
Jose Fernandezelectronico
hace 5 años
hace 5 años
Hi Lautaro, if you only hit the diffusers of the LED's that you changed, it is most likely that when you put it together other diffusers have taken off. When you open a screen and more if it is LG try moving and pulling each diffuser one by one because they take off very easily.
rypran68
rypran68
159
hace 5 años

Hello friend, I recommend you clean the diffusers with a solvent to remove the grease that is left over when you handle them and with that you will improve

Responder
lautaro
lautaro
23
hace 5 años

Thanks for the mao, disassemble the screen again and all the diffusers are stuck, thanks again

Responder
Jose Fernandezelectronico
hace 5 años

You will not have misplaced the sheets? First goes the thick white sheet, with the rough side towards the LEDs, then the thick polarized sheet with the side that looks double towards the LEDs (if you place your hand behind it looks double, if you turn it it looks simple), then Go the thinner polarized sheet with the side that looks double towards the LEDs, then go the thin semi-transparent sheet with the rough side towards the screen and finally the screen.

Responder
ghserviciotecnico
hace 5 años
hace 5 años
Hi, could it be that you put generic LEDs that are amber and don't give white light like LG, can you upload a photo of the fault?
lautaro
lautaro
23
hace 5 años

Thank you for answering my question I will upload an image.

Responder
lautaro
lautaro
23
hace 5 años

Thanks for the interest, I could upload an image

Responder
lautaro
lautaro
23
hace 5 años
hace 5 años
lg42lb5600.jpg [72.98kb]
vallin401
vallin401
1.863
hace 5 años

enter settings and lower the backlight in the menu in half, if it is not appreciated ok. If it continues to appreciate. sure you put the corresponding led? white light and not yellow or blue?

Responder
lautaro
lautaro
23
hace 5 años

Thanks vallin for the hand, the sheets were exchanged greetings

Responder
lautaro
lautaro
23
hace 5 años

Thanks vallin for the hand, the sheets were exchanged greetings

Responder
vallin401
vallin401
1.863
hace 5 años

OK friend. the dumbest thing about the laps we give him hehehehe. Greetings and thanks for responding with the solution. I certainly had not thought about that and I was intrigued by this TV's fault

Responder
lautaro
lautaro
23
hace 5 años

Greetings and thanks to all.

Responder
Reparaciones similares solucionadas

¿Conoces una solución?

¡Aprende a reparar con estos cursos YoReparo!

¿Tienes una mejor respuesta a este tema? ¿Quieres hacerle una pregunta a nuestra comunidad y sus expertos?
Regístrate gratis