Question about Televison & Video
Unable to read the no of eht
Posted by Anonymous on
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Posted on Jan 02, 2017
SOURCE: no eht
Disconnect the horizontal driver transformer output pins and connect an led there to find the it is oscillating, if it does, then it could be the LOT. Try replacing the oscillator ic if there is no oscillation.
Posted on Jan 24, 2008
The tech is very likely correct. The EHT or flyback transformer can develop hairline cracks that allow leakage of high voltage that exists in this circuit. There are other related components that can also cause this, but the transformer is the most likely. This area in the set also builds up allot of dust also due to the high voltages and this aggravates the issue. I do not recommend operating the set very long this way as it may begin arcing inside and cause more components to fail. Replacing the part would depend on how much you want to invest in the unit. Get an estimate and go from there. Good luck.
Posted on Nov 25, 2009
SOURCE: EHT Faliure and kindly give me
Eht on all modern ctv is generated with in the flyback transformer , although some older tv set use a triplier unit feed with a 8kv pulse from the flyback transforme
To find out the one that you have got , if the flyback transformer as two controls A1 and Focus mounted on it then the eht is generated inside, if the Focus contol is mounted on the tippler unit unit .As you do not state the make mod No of tv i cannot be of any more assistant but you could cheek the A1 voltage on the crt base , if this is about 350/430volt then the eht should be ok. Hope this might help with your problem.
Posted on Dec 03, 2010
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