SOURCE: ESA 42 Plasma picture problem
The power supply is having difficulty. The typical cause is
underated electrolytic capacitors. I would examine all the caps
(round cylindrical cans) in the power supply and see if any of them are
bulged. Not a bad idea to just replace all of them with better
rated parts.
These type of caps have all kinds of specs. Not just voltage and
capacity, but also temperature, case size, and obtuse stuff like
dissipation factor. Most all power supplies use switching type
designs that run at serious frequencies (not the old 60 hz - more like
50khz) that stress out these electrolytic caps and many circuit
designers (or their cheap bosses) don't specify the better parts.
Replace them with the same capacitance, but higher voltage, and higher
temp parts (hopefully they will not be too big physically).
Ya, I know you paid $$$ for this TV and they scrimped on cheap
parts. Yup, the more expensive a product is, the more pressure
the bean counters put on keeping the price down.
Hope Ya Fix It.
SOURCE: I have a 32
i know your problem. its an inverter loose connection from CCFL to inverter output. back of your LCD inside the TV. try to remove and re-connect again. be sure no power and AC is unplugged. [email protected]
SOURCE: Laptop screen goes blank randomly
Hi you can try this in Vista
Windows Xp;
Click Start, click Control Panel, click Performance and Maintenance, and then click Power Options. click the Hibernate tab and unckeck the box and turnoff monitor should be never
SOURCE: 3 year old 42in LG LCD TV scrren went blank
You will either have a fault with the inverter board which drives the backlights or a faulty backlight in the screen. If the problem is a backlight then a replacement screen is the only cure. One or the other is breaking down after it has been opn for a certain period of time, have an engineer call out & check with a tester if it is a screen problem.
SOURCE: I was watching the tv, when the screen went blank
Hi,
Most probably, Electrolytic condenser in the Power supply to display circuit may have punctured resulting in smoke coming out. Take tv to service centre. There is no other option.
Good luck.
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