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Tube TVs
Samsung TV has horizontal stripes across the screen
9.501
hace 5 años
hace 5 años
Hello colleague: ... measure in the positive of the C412 if the 180v are present for the amplifiers, video ... if they are measured if they reach the socket of the tube ... if you do not have the 180v in C412 change the C412 of 22mfx250v ... measure and comment what voltage you have now on the C412 ... greetings !!
hace 5 años
hello thanks for answering .... medi the c412 and m throws 34.2v. I measured a resistance that is about 22 ohm and seems open
9.501
hace 5 años
you don't have the 180v in C412 ... deves haver 180v ... as I explained, change the new C412 x one of 22mfx250v ... it may be exhausted or dry ... comment if you increase the tension when changing the C412 ... R599 ed of 22ohm ... but the voltage of the 180v must appear in the positive of the C412 q, comes from the D405 and pin 5 of the fli-bak ... comment ..
hace 5 años
SOLVED friend thanks for guiding me. Indeed the root of the problem came from there. The resistor R599 of 22 ohm was open, I changed it and the TV is working correctly. Thanks to all comments. Regards..
1.634
hace 5 años
hace 5 años
Faced with this type of failure, the screen setting should not be modified to the first one (usually I do not like to do it unless it is necessary) because if the TV was working well until it failed it must be verified that it happens before moving it , many people after moving it do not return it to the correct level and the TV is working badly, in this case the most sensible thing would be to verify the correct voltage of the video amplifiers, or cracked welds on the socket card, notice that the Image is presented with a certain halo on the right, typical of the 180 Volt fault, very common in these TVs.
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