Edgardo Alfonso

1.241

hace 5 años

You must put the tv model is not enough with the chassis

Edgardo Alfonso

1.241

hace 5 años

Also the reference of the audio IC

Marco2017

15

hace 5 años

The integrated is es tda 7056

luis tartaglia

17.741

hace 5 años

Measure the voltage again because pin 2 must have power. And pin 4 is mass. That is 0v.

luis tartaglia

17.741

hace 5 años

On the board it tells you chassis number. Look it up. Look at the side of the flyback or side welds

Marco2017

15

hace 5 años

It is the nc-31k, the voltage is correct the 4 is ground and the 2 gives 14.5 volts

Marco2017

15

hace 5 años

I already tested the axuliares and there is no audio. pin 40 says ext video in

Marco2017

15

hace 5 años

I put my wet finger and there is no sound. on pin 3

Marco2017

15

hace 5 años

ic 201 heats up a lot is normal or what happens help me please.

Marco2017

15

hace 5 años

pin 6 and 7 if there is sound from ic 201

luis tartaglia

17.741

hace 5 años

Then confirm if the diagram corresponds or not to the tv. Or what jungle it carries.
If it is LA 7634 and another.

luis tartaglia

17.741

hace 5 años

Follow the form from the audio output or pin 6 and see where it is cut. It controls printed welds that are not cut and components up to pin 3 of the audio IC.
Or desolda this last pin that is not in print and you see if you have audio in the print. What are you controlling to know if it has audio.

Marco2017

15

hace 5 años

it's 7674

Marco2017

15

hace 5 años

I am following the sound of pin 6 the capacitor reaches the c601 and is lost

Marco2017

15

hace 5 años

the strange thing is that I already changed the c601 and there the sound is lost and I got confused

Marco2017

15

hace 5 años

I follow the sound with a small speaker a chicharita.

luis tartaglia

17.741

hace 5 años

And is pin 3 of the audio IC desoldered?
Surely you have a cell phone with a headset, you can place an audio signal directly pin 3 soldered one end of C 601. Is it safe C 601 or is C 602?

Marco2017

15

hace 5 años

c601

Marco2017

15

hace 5 años

If you already change it but before condenser there is audio and then there is no longer remove integrated audio and it does not heat the ic201 but the strange thing is that the audio is lost in the c601. I repeat and change it.

luis tartaglia

17.741

hace 5 años

Change the audio IC.

Marco2017

15

hace 5 años

okay

Marco2017

15

hace 5 años

good night I tell you already change the integrated and already has volume, I comment that I have to find a used integrated but if it is worth it.
I thank you all very much for helping and for teaching in this way, thank you very much.

Marco2017

15

hace 5 años

Thanks a lot

luis tartaglia

17.741

hace 5 años

Glad to solve it.
Thank you by rating the contributions with the thumbs provided by the forum. ???? or ????