Question about LG 50PS60 50 in. Plasma HDTV
It's obvious that the power supply failed. The most common parts in a power supply are a thermistor or a voltage rectifier, possibly even a voltage regulator. diodes or resistors can act as fuses too. A ringing sound can come from a fixed coil that isn't kept still with enough epoxy. Hope this helps.
Posted on Nov 26, 2013
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Posted on Jan 02, 2017
Our LG 50" plasma tv screen went black after a popping noise but still had sound, after great diliberations decided to take the back off and have a peek!
We unplugged the tv and tested the fuses (there were three we could see) one had blown, the one on the left as you look at the back of the tv it also has one above it. We wrote the code/seriel number down and took the fuse to the electrical wholesalers Maplin and bought a pack of 10 fuses for £1.29 replaced the fuse in the tv and everything now fine!!!!!!
Hope this might be of use to anyone whose lost the picture after a loud popping/snacking noise but still has sound.
Posted on Jan 17, 2008
That usually indicates that the power section driver board (one of them) has failed on you.There are three boards each of which can fail and cause this. Usually it is the Y or Z board.
Bad news is to know which one you need to be able to test inside the tv. Good news is the boards are fairly cheap around $35. So you probably will have to take it to a repair shop to get it fixed. Unless they really try to do a number on you as far as prices it is worth fixing. However be a bit cautious here and get and estimate and find the price of a new tv. If the markup on the parts and the labor gets close to the new tv cost then you will need to decide if it is worth fxing or replacing. Ie used tv or new tv with warrenty.
Posted on May 13, 2010
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