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Tube TVs
It fails with TV Philips.
hace 5 años
hace 5 años
Good afternoon friends of the forum receive my greetings. I have a problem with a 20 inch philips tv chassis chassis L03.2LAA that I would like to please help me: Said tv turns on but with a horizontal black stripe on the left side, I tried with another yoke and the fault was the same but something happened to me curious since I had covered it to deliver it to the owner since I had given up and the owner charged me in a hurry every time asking me and so you can not work calmly, well it happened that when I covered it the device worked well it looked perfect but I had that uncover it about 4 days to fit the micro suicides because they did not work well but the device started again with the fault and that if I worry because I do not know what that failure could be. I hope you can help me and thank you in advance. Here is an image of the fault.
9.501
hace 5 años
Eliezer colleague ... is not the image or photo of the failure of your TV ... try to use it to better interpret the fault ... I leave you a link to create images ... greetings!
https://es.imgbb.com/
hace 5 años
there is the image. and if I review welds and change suspicious filters but I don't improve.
17.741
hace 5 años
hace 5 años
I am with the contribution of colleague Miguel.
Look for false contacts, short print, broken board. Because according to his comment that he closed the TV and it worked well, it only indicates that.
do it with a clean plate, good light and magnifying glass. so you can see them well in the whole horizontal circuit and try.
He did well to play with his bb.
salu2
9.501
hace 5 años
hace 5 años
Hello colleague: check the R3422 of 330kohm q, exit Q7421 sal.hor ... and see if it is not open ... check it can be open or devalued since q, it is connected to the collector of the transient hor, ... check welds in components that are in pin34 of the microjungle ... C2481 of 100pf ... greetings!
1.242
hace 5 años
hace 5 años
friend this fault is assimilated to lor tv trc samsung when a capacitor burns and the 1200ohm resistor is left with a strip check some capacitor in the horizontal part
17.741
hace 5 años
I asked and I ask you so we agree. And focused based on the reports provided by the poster. Saying that when putting together the TV to return it for not being able to solve the fault and pressure on the part of the owner. The tv worked fine.
I ask
And what if the TV worked well is because it has a damaged or altered component?
9.501
hace 5 años
colleague Luis ... it can be both ... some cut track or some loose welding ... it can also be a lack of synchronism hor,
or some damaged component ... when mopping the plate to put it inside the furniture the fault occurs ... it is in the colleague's ability
according to what. We suggest you find the fault ... Fection the plate gently out of the furniture and try to see where the fault occurs ... it is not easy but it can be found ...
1.242
hace 5 años
good friend I for my part think that there is some cold welding somewhere in the horizontal since it is well assembled and if I already check it overheated resistance that lost its value or some expired filter
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