Tv Daewoo CRT does not turn on the screen but does have sound.
Good afternoon: Is the chassis CN-001 dry, does it have no additional letter? ... Regarding the fault, it may be because the voltage of 180/200 volts for the three RGB amplifier transistors is absent or poorly filtered , which are on the small TRC plate. You should clarify the first question to tell you where to measure tensions or where to look, if you do not know .... Regarding the Heater / Filament / heater, I recommend that you review the vacuum valves, and the effect that Edison discovered in the process of manufacturing incandescent light bulbs
Ok, thanks for answering, I usually repair industrial equipment but on TV I don't have any experience. I'm going to check and tell you.
It can be interpreted that way ... But I can say that the TRC tube is a vacuum lamp and like every vacuum lamp it needs a heating to work (Filament / HEATER). But for me, for me who loves electronics, it is not enough, so for me the good thing is to review history, I see with sadness that there are teachers who urge to learn by forgetting history ... Anyway ...
It is very good that they are intruded on the subject. This is recommended.
As you say There is a very useful tool, which is the Internet. You have to use it. Very served everything is not good. To learn. Let them study the basics.
Exact. Thank you all for commenting. I had never repaired TV, but it was interesting.
Good thing he found the fault.
But, but, if filament did not turn on you can never see delay lines with white screen.
And filament attached with those delay lines is another problem. This last symptom is not solved with the filament R (changing it) must have done something else.
Clarify the contributions and if it is convenient, close the subject where it says Yes, thanks is my solution.