No back light implies no power but batteries recently changed and new sets tried to no avail

change batteries in remote then unplug tv for a couple minutes then plug back in and try remote if no luck try reset button on lower left in rear

Why do you think you need to replace the battery? A common sign that your Motorola Bluetooth headset needs a new battery is when you repeatedly hear five quick high tones in successive, one-minute intervals. Another symptom of a low or dead battery is when you try to scroll to Power and your headset doesn't come on. The Motorola H500 headset has a long battery life, but the battery eventually will go bad. Unfortunately, the battery is integrated as part of the headset's circuitry and should not be replaced by its user. Motorola strongly advises against trying to change the battery. Attempting to replace the battery voids the headset's warranty. By sending the headset to Motorola for repair, you can have a new battery installed without the risk of damage to your equipment.
But you can try the following at your own risk:
Locate the battery door at the rear of the headset and open it.
Remove the old battery. Install a new battery to match the plus and minus illustrations on the battery compartment. Shut the battery door back in place.
Select "Menu" on your phone. Select "Settings."
Select "Connection," "Bluetooth Link," and "Setup."
Select "Power." Select "Change."
Select "On," and then press "Select."
Press the "Call" button and hold it down. Release it when the LED light blinks.

There is a short-circuit happened at your laptop or the laptop charger.

try some new batteries not cheap ones, if still you have the same issue try to factory reset it, if you will need more help with your camera download a factory service manual from the below link:
http://goo.gl/pVDpD
Good Luck

Click Start
Click Control Panel
Click Power
Change the power-setting from "portable" (implying long battery life) to "desktop" (implying full speed processing, but shorter battery life).

The best solution would be to just move the sensor bar to the top of your TV. Then you could change the settings back to the bottom and move your sensor bar back. If that is not an option, just try your best to get back to the settings to change it back.

It sounds like you may have a short in the electrical system. Something is causing a draw on the battery.
Have you recently installed any "add ons" or a new stereo? If not, if you know how to use a test light email me back and I will talk you through how to diagnose which circuit is the culprit? If you recently made changes to your alarm or stereo oull the fuse and see if battery remains vharged.

Hi friend,

You need to change your RAM because your memory not able to transfer data. just change your RAM then it will work.

if you still have old video card remove the new one and replace with old one
change setting back in bios
then reinstall new card and instead of changing through bios just start computer it should automatically change settings for you
please let me know

Hi The problem is to do with a 680uf capacitor that tends to bulge and fails.this stops the monitor staying on when trigerd to do so,change this and happy day.