⚡ 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 🔥
Tube TVs

LG flatron RP21FB3 does not turn on

fauno41
fauno41
212
hace 5 años
hace 5 años
When connecting to the network I have stand by and 111v in B + but when giving power only a click is heard and the B + falls to 95-45 v and immediately falls to standard by and the B + stabilizes again in 111v. unlink and place a focus between collector - emitter of the TSH that is in good condition (D2627), and stand by I have in B + 102v and when giving power 110v. Also remove the flyback from the board and place a B + ground spot and the measurements are 100v - stand by and 111v- power. Something that caught my attention was that the source started to put the focus between collector and transmitter and also to put it between B + and earth, but when trying to turn off the TV did not respond, is that normal? Greetings, thanks for your attention ...
fauno41
fauno41
212
hace 5 años

When I unlinked the flyback, I had to check with a multimeter and between the pacifier of the screen and a pin where the thickest cable for the trc came out measured me 75kohms. Can anyone tell me if this is normal or maybe the problem. Regards...

Responder
Joansoler
Joansoler
47.894
hace 5 años
hace 5 años
Let's see, the described symptom corresponds to a defective FBT (Fly Back Transformer), because it has "leak" in its internal capacitor for high voltage (MAT or EAT), you must replace this unit with a new part. Some substitutes for this FBT can be found on this link ... https://yoreparo.com/tv/televisores/tubo/preguntas/716861/remplazo-de-fly-back-6174v-6006h-tv-lg Greetings! Joansoler.
fauno41
fauno41
212
hace 5 años

Thank you, yes, it is with pin number 12 marked on the image that I have continuity ... Replacement and value.
Thank you so much✌️

Responder
fauno41
fauno41
212
hace 5 años

Hi, how are you? I have been searching and I can't find the flyback model. They told me that it was a little difficult for me to get it and I would like to know if there is any way to lift the equipment with maybe another recycled fly before closing the question because I don't see any other way. Regards...

Responder

¿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