This may be similar to another posting....I turn on the TV and it shuts off, after varying lengths of time. It may stay on for 10 sec on try #1, then 5 sec on #2, then nothing. Someone theorized a fan may have gone bad. And of course, I am having trouble finding a tv repair shop to look at this thing. Any suggestions?
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Fault with main board. Shorted component/s. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. http://electronicshelponline.blogspot.com/
There is some short circuited board in the TV. Z-Sustain must be suspected. Visit the site named 'Electro-help' for more
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There are more than 1350 posts to different brand TVs now. Pull up older posts
A common problem for these is bad capacitors in the power supply, Remove the back from your TV and look at the power supply on the left hand side.
You will see roughly around 9 x capacitors that are bulged / domed shaped on top usually these are valued at 3300uf 10V any that have bulged or leaked a brown like substance should be changed. This will cure the problem as they overheat being sat next to a heatsink that gets very hot! Try and change them for the same 3300uf but a higher voltage. Hope this helps
You Need a new Power Supply, part # LJ44-00025A buy it here for $139 http://www.adc-ast.com/ I have my tv working like new. If you want this time the power supply last, do not turn off, justpress tv/video button to switch input source, let the tv in sleep mode.
I got this same tv from a guy in my area he would press the poewer botton on the tv and the standby light comes on and then turns off, so he gave me the tv for free i took the back panel off, and everytime i press the power botton the green light came on where the screen board is and went back off after i let the botton go i took the power board out took it to a repair shop to see if there was anything a wrong with it everything was good so i replaced the two fuses on the board and the one on the screen board, i had a feeling about the power switch so i jumped the wires on the switch purple to purple and green to green, I put it back together pluged it in the standby light came and stays on now, so i went out and got a universal remote for the sva at walmart for $15 programed it and pressto the tv works perfect so three fuses $3.60 two small pieces of wire and ele tape $0 my time 35 mins = one working plasma for $3.60 so when you have this problem like everyone else check the power botton switch, there cheap and check the fuses theres only three and if that dont work idk what to tell ya. and you do need a remote or tv wont work.
SVA is a manufacturer based out of China. Their headquarters is based in LA California. They specify in affordable plasmas and LCD's which are typically a generation or so behind other LCD manufacturers or plasma manufacturers.
I have heard of this issue both in the power cord and internal parts of the TV's.
Is it still under warranty?
Otherwise, you can purchase another power cord. Contact the manfuacturer for those small parts.