Victor E

65.783

hace 6 años

try the source alone without the tr. connected horizontal output

faby3977

14

hace 6 años

thanks Victor e. to answer, I tell you that I already did that to get the horizontal tr and nothing, also change the optocoupler and nothing. the secondary voltage stage is dead.

Victor E

65.783

hace 6 años

if the fat filter is loaded, the source does not oscillate. That's why I told you to test the source alone.

faby3977

14

hace 6 años

I tried the source alone, without the trh and nothing, I'm changing the mic now, I'll try and comment.

Victor E

65.783

hace 6 años

the micro? why?

faby3977

14

hace 6 años

Sorry it was not the micro was the TDA8356. I vowed and nothing left without estandby

Victor E

65.783

hace 6 años

change the regulator?

faby3977

14

hace 6 años

if you change it twice for new. and change everything practically je.

faby3977

14

hace 6 años

Could it be that the flyback is fucking?

Victor E

65.783

hace 6 años

even if it were the flyback, the source should work the same, check the diodes and capacitors in parallel with these in the secondary of the source.

faby3977

14

hace 6 años

I already did that, it was the first thing I checked.

faby3977

14

hace 6 años

to comment, raise the L402 and R406 of the + B and now I have voltage in the secondary stage. 5v eprom, 33v tuner, any idea could be the flyback?

faby3977

14

hace 6 años

does as it wants to ignite and paste and take off the relay that without being connected L402 and R406

faby3977

14

hace 6 años

no one else to continue with this tele

Victor E

65.783

hace 6 años

Do not have another flyback to try?

faby3977

14

hace 6 años

I put a new flyback and nothing, now pulling out the + B makes you want to start sticking and take off the relay the voltages are in eprom micro tuner. and measuring before the resistance R406 I have 160vc is that much that would go to the + B, I do not know if I explain myself. and when the + B is connected to the flyback again, the secondary stage is again without voltage. I do not know if I explain myself

Victor E

65.783

hace 6 años

charge the + b with a 60 w bulb and measure the + b, that is without connecting horizontal output

faby3977

14

hace 6 años

I already did that too and when I charge the bulb directly, I do not have the voltage, it's like it's protected directly. and when raising the focus, activates the secondary source on and off. and when placing the resistor and the coil again the secondary voltage is left without voltage. in that on and off before the resistance me measured a voltage of 160vc

Victor E

65.783

hace 6 años

and the problem is in the source, if the tension disappears when the focus disappears, it does not regulate and does not maintain the tension, as it should be.

faby3977

14

hace 6 años

good days following with this tv happened to comment. I managed to stabilize the voltages I have the 125vc + B. 5vc eprom, the problem now is that: the standard led flashes 10 times, another problem that while I have disconnected the flyback pin of the 125vc regulates well with the above mentioned voltages, when I connect the + B voltage drops + B 10vc, eprom 0.23vc and change everything I do not know where to follow, any more suggestions to contribute.

Victor E

65.783

hace 6 años

test without connecting the yoke, to see if the voltage drops.connect the flyback to test.

faby3977

14

hace 6 años

Victor E, I told you I started the TV now it gives me on. I have it in series with a focus of 100wts. when turning on the TV the focus is going to ful the luminisidad and the TV is turned off I do not know if it will be due to the consumption of the focus or there is still some problem of cut. you think I prove it in direct line of 220v?

faby3977

14

hace 6 años

Let's go, Victor. disconnect the yoke the TV starts up with a dot on the screen. I measured the yoke and I was normal the homs. Give me another idea that is missing a little.

Victor E

65.783

hace 6 años

the yoke if it has short turns it will measure well, try as I told you

faby3977

14

hace 6 años

I have a yoke of an equal TV I'm going to change it and see what happens, it costs nothing heh.