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Tube TVs

daewoo tv model dtq-20v1ss with cn-001g board looks very little

juangimenez29
hace 5 años
hace 5 años
Hello, what a friend of yoreparo. I tell you that this TV had several failures. Now some of them were corrected, only one which looks a bit dark as a lack of light. The contrast is 100% on the menu. If I get into the service mode and I increase the contrasts, the colors start to look like a kite. I also uploaded it to the glayback and the return lines are visible. I appreciate your cooperation ...
neg2013
neg2013
14.048
hace 5 años

Good afternoon: I don't understand the fault well, rather as you explain it, but I ask, do I change the SCREEN voltage filtering capacitor? (C912)

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juangimenez29
hace 5 años

The tv had the following failures. the regulator was bad since the tv in some scenes of a lot of light elnse turned off protecting itself. Replace it with the substitute yanq the original was not achieved. and I changed the filter c410 of 10uf 250vlo which was bad and the tv was repaired but looking not so illuminated. It does not look very dark but not too bright. Let's say I'm halfway. I say it because I have another TV the same and it looks very bright

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nicomena2015
nicomena2015
9.501
hace 5 años

that of q, it turns off it may be that, the protections act but before with the other regulator it had more brightness ... that is to say the image was good and clear ... the tension of + b as soon as it is ... measured it. ...? comment if it is the CN-001N chassis ...

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juangimenez29
hace 5 años

It also didn't look good with the other regulator. What it was is that it turned off. help me a little what attention should I measure and where?

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juangimenez29
hace 5 años

Chassis is cn-001g

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nicomena2015
nicomena2015
9.501
hace 5 años

measure in C814-820 q, tension has ... deve haver 133v .... if that is ok bypass the R412 q, it comes out of pin9 of fli-bak q, feed the filaments and see if it improves the image on the screen .. .okay...

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nicomena2015
nicomena2015
9.501
hace 5 años
hace 5 años
hello colleague: so, you comment the colors outside the figure can be exhausted tube or does not light the filament well ... increase the screen a little and see if there are improvements ... I must walk in the 350-400v ... if you see q, delay lines appear you turn it a little until q, disappear ... notice if the filaments ignite well ... If the filaments light well and do not improve with the screen setting, a solution would be to increase the filament tension somewhat ... comment results ... greetings!
juangimenez29
hace 5 años

Change the screen and everything bn

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