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TVs

lg screen does not give image or sound

linogonzalez
linogonzalez
2.331
hace 6 años
hace 6 años
hello companions is a lg model 47lw5700 lights but does not give image or sound and check voltages in source and all are present suspicion of the main suggestion
wilson sepulveda
hace 6 años

That television model is always damaged by the main board, the problem is the welding of the bga chip, the older televisions did not present such problems because a better quality welding was used, but very polluting for the environment as many of the appliances they are thrown anywhere to the creeks and rivers,
To revive that TV, there are two procedures that can be done
1 is to perform a reflow with a thick flux type and you have to know how much heat distance and time can be applied

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wilson sepulveda
hace 6 años

This is the hard one for revaling https://youtu.be/RZ3H-Fn1-IE

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wilson sepulveda
hace 6 años

https://youtu.be/u5Bw1mlh3hs watch this video 1 part greetings

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wilson sepulveda
hace 6 años
hace 6 años
2 is more effective and durable, it is the famous revaling, it consists in removing the vga chip and bolver has to be soldered, for that you have to get the best quality welding balls and stencil templates, it is very complex and first It is difficult to succeed in Yotube, there are many videos that explain how to do it, and all the precautions that should be greeted
linogonzalez
linogonzalez
2.331
hace 6 años

thanks wilsson i think i better buy the maiin

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wilson sepulveda
hace 6 años

ok you decide until the prosima

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