TV brand ELECTROSONIC etmu-29
Good morning; Before replacing the horizontal transistor, you have to test the source to measure how it is regulating the + B; When televisions come to the workshop and more missing components such as the horizontal transistor, measures must be taken or precautions taken, not replaced because yes, surely the previous technician will open a lot of war with the fault. The immediate destruction of the TSH may be due to the fly-back, also by the yoke.
You should keep in mind that the D1880 transistor is very different from the D5386, the first one has a damper diode, and the second one has neither a resistor nor a damper diode ... And mainly none of them is an integrated one as it calls them, they are simply transistors .. Remove the transistor, place a famtasma charge at + B and see that it regulates at 130 volts as the diagram that approached it says ... The J6810 dry without back letters is a transistor without resistor or damper diode.
Atec - Haier 29T5A.pdf [735.87kb]
Ok thanks colleagues for the help. the filter that explodes is done with the original flayback I mount a bsc25-n0435 and does not explode but after a while it starts to heat up but I don't know if it's normal I would have to leave it for a while to see if it exceeds the temperature ...
I don't know if the filter explodes with the original flayback because I'm putting the transistor that isn't. I don't know what you say
If I ride the original flayback and place the J6810a
in the + b I have 130v