My hd tv problem is, When i on the powerit coud't
Hi Jerry.
Hi have seen this issue come up quite alot.
It appears that your tv has got a case of " capacitor" flu.
That's what it's called to the tv techs.
The capacitors are like booster batteries, and they send a boost pulse to the picture screen, energizing it.
Sometimes these capacitors go out on you, some with warning, like a pop or a hissing sound.
Others just give out, and make no noise whatsoever.
They are located on the main circuit board. The other thing that can cause this is the convergence module can fault out.
This can be by many different causes
Resistors, capacitors, even the power supply relays themselves can fault out, though not as often as caps.
They account for over 90% of all the tv failures currently going on.
This has to do with poor part supplier quality overseas, where the parts were make.
Sometimes, it's poor solder, other times, it's because they were manufactured using the wrong formula for the capacitor gel inside.
Kinda like battery acid, it has to be just right, or it's not any good.
When a battery fails, it bulges, splits down the side and leaks all over.
Capacitors are the same way.
So, look at you circuits, and see if there is any visible leakage, or if you can see any blown caps.
They should be fairly easy to spot if they are damaged.
I hope that this lnforms you some, and if it is caps that are bad, take it to Fry's or Best Buy for your repairs.
They have specially trained techs for just this type of repair.
Oh one more thing, if it is capacitors that are blown, get an estimate before you just hand it over, the cost of repair may be more than the cost to replace the tv, as these type repairs can be quite expensive to do.