TV REPAIR
Make sure if you are able to resurrect the other strings, that your friend is well aware that he might actually spot areas of his screen that are dimmer than others, in the areas with the dead LEDs, otherwise he might not be happy with you. Short of replacing all the strings, I can see no way around that problem. Great work so far, keep it coming.
Well yes if I manage to fix the thing I will see if the lighting is even enough to be acceptable, i fnot will tell him what he wants to do.
Hopefully there WILL be dark spots and he will tell me OK fuck you can keep it... more spare boards/parts for Vince !
We shall see.
I don't know where to buy the strings nor how much that costs. If it's available for this particular TV, and is ridiculously cheap including shipping... like 20 Euros shipped, and given the TV is recent, maybe he will want to pay for that. We are not there yet....
Why the eff would you trash an obviously repairable TV like that?
I don't want a TV, I don't watch TV, and even if I did, I would not want this particular one, way too big for my house, looks crap and ugly. Like all TV's.
Just put it away and wait for a paycheck so you can buy some LEDs for Ifni's sake.
You mean so I can sell it to make money ? Depends how much it's worth on the second hand market, why not... but still, why wast emoney on new LED strips if it looks good enough as is to be flogged.
Plus, from a moral point of view, I don't like the idea of making money from something that was given to me. If I fix it, it's to give it back to the owner.
You really should replace those LEDs anyways, even if you are sending it back to the owner.
Again not my call, not my TV. I don't get to make decisions, the owner does.
If he is happy the free repair and doesn't want to spend money to replace LEDs, it's his wallet and TV, he does what he wants.
All I can do is give him the information so he can make an informed decision, of course.
Just jumpering them out is begging for all the others in the string to fail prematurely.
Yes. And even if I replaced the faulty LED's, the other would probalby start failing as well anyway....
so you replace the LED strips, costs money... then you don't know the quality that you will get, they might fail anytime as well.
And if they don't, then the power board will go bad because of caps or any of the numerous power transistors or diodes.
You never see the end of it, by the time you have fixed it 4 times in 2 years, you could have bought a brand new TV with a warranty.
It's just like what you said with old cars !
Correct repair, short of replacing them all, would be to measure voltage drop across every LED with them lit up and replace any that read appreciably lower or higher than the average. That would be your best chance to avoid recidivism. You already have a cheap hot-air rework station, right?
Yes I have the cheap one everyone used to buy a few years ago, with the fan in the hand piece....
Replacing only the 2 individual defective LEDs you mean ? OK would do if I had appropriate LEDs on hand, but I don't.
Well maybe I could see if it's technically possible to use the ones I salvaged from the other TV, could have a look at that.
Efficiency/ brightness and colour temperature would of course not be the same, but maybe similar enough that it would be a better alternative to no LEDs at all... don't know.
First, try to fix the damn thing, get all 4 four strings working, then put the "light pipe" and reflector back into place to see if there are dark spots or if it's acceptable as is (old TV with 5 dead LEDs was just fine, incredibly enough....)
Then I will take it from there. One step at a time, one step at a time...