Noblex 21 inch model 21tc677u no vertical voltage
Televisor NOBLEX 21TC677U
Televisor NOBLEX 21TC677U
If the TV turned on that it fails early to change the icing, make sure there are false welds or tin remains on the plate and check diodes and resistance that feed the vertical ic
Hi, sure it looks like it made some cut and burned a yellow fuse coil, I followed the 33v of the integrated back and it takes you to a transistor to measure tension there, from there it goes to the horizontal oscillator, I went and will find what I told you cut luck
Exact!!! The 33v that should have passed through a resistence and then goes directly to the coil ....
But I measured in the coil and there are 33 for the vertical ... and this urges me a lot because when turning it on it seems that the LED turns off and turns on but the TV itself does not respond even now it makes me the line of the horizontal stroke ....
Please help ... I ask you I am very nervous and I don't know what to do through this problem ..
The resistance R611 what value is ?? Why the positive bone 33+ go to the secondary of the source can be ?? Someone who can give me the plan can be if you are so kind please
Because I measured transistor Q631 and it is short ... and an output of its legs goes to a resistance that is already the name R611 and if I continue measuring it gives me 30v but at the output of the other leg it goes to the transistor no voltage mark me ...
When I want to turn on the TV it marks me at the output of the 33v resistor and when the TV turns off it gives me 29v almost 30v
Thank you for your comment Wilson! I got to measure that yellow resistance and it opened ... I measure it from mega ohm to ohm and it doesn't mark anything until I put it on continuity and nothing will be why it doesn't happen 33v ??? Because at the other end of your resistance terminal if you mark me and the other nothing! It tells me voltage 0v
the fuse resistor must pass first through the rectifier diode, there is no problem in bridging it but it would be more original to change it for a new one, to me because you gave solution to the case if you had not yet resolved
Hello everyone at the end a few hours ago I could fix this TV many thanks to those who helped me and those who did not equal ... in the end I had to change three things the integrated vertical la78141 the transistor b985 and a yellow resistor and now walks ten!!! Luckily .... greetings to all ..