tv daewoo dtq 20v1ss chassis cn-001g looks dark
It opens everything and has an image and everything but it almost does not look very dark to the platelet of the kinescope. 170vol arrives but to the cathodes only 60 and oxidizing rises and falls in the fly-bakc all the voltages are ok except the one of video that only has 170 vol deverian be 200v or serca
change the C410 of 10mfx250v and see if the voltage in the video voltage increases ... check the R411 of 15ohm if it is not damaged ... it is not 200v ... in the scheme it appears 180v in C410 ... measure the volatje q, you have on the screen in the socket of the tube ... tine q, ride in the 350-400v ... ok
What I do not understand because it oxides the voltage on the tube card or in the rgb transistors
it must be xq, it is tuned in the channel ... if the image signals arrive to the amplifier transistors, the video voltage in the cathodes will rise and fall steadily ... try to take out the antenna from the tuner and then measure .... try the A / V or video option and measure what tensions you have in each cathode in the socket of the tube ... do not comment what tension you have on the screen ...
brother effectively lar 411 was altered is 15 ohms and you 52 ohm replace it and it improved as soon as the voltage went up to 180vol but still dark and on the rgb plate it oxidizes the voltage on the transistors 52,100.70, vol which can be
I already told you colleague; take the antenna out of the tuner ... or put it in the video option ... and then measure back at the cathodes and see if they no longer raise or lower the tensions at the cathodes ... do that test ...
thanks nicomena2015 for your great help but the fault was nothing more than the tube or kinescope exhausted I tried it in another and perfect
good buddy: I'm glad you there found the fault ... if you want you can rate my contributions under my first comment ... greetings!
thanks nicomena2015 for your great contributions with your knowledge so that I could repair this equipment God bless you
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