⚡ 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

RCA tv problem 21 inch flat screen

Chris Haruki Demon3
hace 5 años
hace 5 años
Hello friends, I have a problem with this TV has cut the vertical change that tr a 78041 and capacitors and the fault persists does anyone know where the fault can come from?
Jeesus Caicedo
hace 5 años

How is that cut?

Responder
Chris Haruki Demon3
hace 5 años

Haww sorry has a horizontal line in the middle of the screen

Responder
Jeesus Caicedo
hace 5 años

Well, first test if the food is left in all the corresponding sighs and they will indicate where there is no corresponding boltage in each pin

Responder
neg2013
neg2013
14.048
hace 5 años

Good evening, you could indicate the chassis number ...

Responder
luis tartaglia
hace 5 años

Forum Rule
Model and tv chassis.
And make a detailed technical report. Of everything measured, such as tensions and components.

Responder
neg2013
neg2013
14.048
hace 5 años

Did the tensions that feed the vertical stage verify their presence?

Responder
Chris Haruki Demon3
hace 5 años

The TV carries a jym 560 chassis is a 21 inch flat screen RCA TV

Responder
Javier Chavez C
hace 5 años
hace 5 años
If the polarization and work components are thoroughly reviewed. Verify the presence of the working voltages of the vertical IC and the state of the yoke in its section or Vertical windings
luis tartaglia
hace 5 años
hace 5 años
I will also provide a possible solution. When the vertical IC is broken. ALL electrolytics are changed to new ones. Same value and controlled before. And without the ic placed, all the components related to this circuit are measured. 1-Diidos 2- resistors 3- yoke- 6 ohm or more. Or remove it for security and see if it is not black. Reheated or green or cut sulfate. 4- the power is controlled which can be a little high due to lack of consumption. When you are sure that everything was controlled, a new IC is placed. To avoid breaking IC. If there is no sawtooth pulse, neither will it have vertical deflection. Measure the voltage on the input pin to the ic to be guided. The ideal would be an oscilloscope. luck.
Chris Haruki Demon3
hace 5 años

Woo friends thank you I am going to do all the tests that I can, I am not thematic but I like this and I am trying to learn the TV is mine and if I can not repair I will turn to a specialist but remain calm that I know enough and when I can give you news like They are always geniuses and they help in everything I hope one day to be like you

Responder
Jeesus Caicedo
hace 5 años

Well, friend, I have to tell you that he has a good disposition to triumph in which branch he has a very good attitude.

Responder
Chris Haruki Demon3
hace 5 años

Friends can show me well where the whole vertical stage would be to review I want to check the diodes and resistors I have the diagram but I don't know where to start

Responder
luis tartaglia
hace 5 años

Friend that is something basic like other things or stages that tells a TV that you should know to repair it.
In my contribution as a possible solution I will upload the whole part or vertical circuit from its power that leaves the flyback pin 9 with 28v. Look at my contribution. And qualify. The forum tr gives those thumbs up. Make use of them.

Responder
luis tartaglia
hace 5 años

Everything related to the vertical ic that you mention with cerigraphy 300 example R 301 is part of the vertical circuit.

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