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This particular model has some sort of internal electronics that require a charge before the unit will function. As a result, when allowed to sit in the cabinet for a long period of time it will simply not turn on. Instead, all you will hear is a "click" noise when you try to power it on. When you get the dreaded "click" noise leave plugged in for several hours and try again.
Hi, As you mentioned the tv have problem with the power supply stage. Before suspecting for any intenal fault Chcek the following first. Remove the AC plug of the tv and connect the same in any other wall outlet. If then also it shows the same problem then its the powersupply board of your tv. working on power supply board should be done by a skilled worker. Because there is risk of electric shock even if the power is disconnected. some of the capacitors will hold charge even if the power is not connected.
Here i have adde the link which will lead you the powesupply board.
Have you checked your power adapter with a digital multimeter? Maybe run it by your local radioshack or computer super store if you dont have a DMM and see if someone can check the voltage on it. Maybe your adapter died, then the laptop was running on battery until it went dead.
Another quick check, remove the battery all together. Plug in the ac adapter... does it turn on? does it show any lit led's indicating it is plugged into the wall? try wiggling the connector at the jack on the laptop, does that light any led's or cause power to be restored?