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My 42" LCD flat screen tv, is showing no power. I have checked all connections, and even tried a different plug. 2 other items are on the same circuit and they are working. The tv was working fine this morning, but when we got home this was our problem. Any suggestions?

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It sounds like the power supply is bad.Open the back of the TV,and look at the can shaped items called capacitors on the circuit boards.If any of them have the tops,or bottoms bulged out,they need to be replaced.This should get it working again.I hope this helps.If you have any questions,please let me know.Thank You very much!

Tyler

Posted on Sep 28, 2010

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Check that the input you are plugging the DVD into on the TV is actually selected as the TVs input. Try using a different input and also different input types/cables. Most DVD players will have HDMI and also either component or composite type outputs. Try the different cable type and make sure the TV is looking at the correct input. Do you have sound?

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Its stays on sold red when powered on . when i remove the invertes cable that connect to the power supply it turns green then i can power it on to blue ! but when i plug the invert cables back it stay red...


With a flat screen TV, this is a bad symptom indeed. If you wish to get some details, check the site linked here. Surf the site in "MOSAIC" view. It will make surf easy. Surf the site with patience.
http://electronicshelponline.blogspot.com/
Screen shots to defective flat screen TV are given. You can compare it to your TVs' screen and can make sure about the fault.

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Try unplugging as suggested. Also, try different inputs (HDMI, component, etc.) and different cables to be sure it's not some external item causing problems or just one input. Also plug it into an outlet on a different circuit in your house.

If everything you try still shows the lines, it's probably the screen itself and is too expensive to fix.

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I'm sorry that the TV is displaying vertical lines on the screen. Please follow the troubleshooting steps and check the operation:

Please make sure that the connections are secure and proper.
Try connecting a different video source like DVD player or VCR and check the operation. If it works with another device, the issue might be with the input device currently.
Also try connecting the device to a different port in the TV if no other devices are available.
If the issue persists, try with a different cable.
Perform a power resetting and check the operation. To perform the power resetting, unplug the TV from wall outlet for more than 2 minutes and then reconnect it.
If the issue persists, after all above troubleshooting steps, service may be required. You can click hear to setup a service for the TV.

Also it would be good if you can come back with the model # of the TV to check whether the issue can be resolved with a firmware update.
Thanks for understanding. Please let me know if you require any clarifications/additional help.

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Try connecting the TV directly to a different wall outlet and check. If the issue persists, try power resetting the TV. Turn Off the TV and remove the power plug from the wall outlet for 1 minute and reconnect it and check the operation. If the issue persists, then the TV requires service.

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Just try to reset so picture will back to normal again, some LCD TVs have a reset button. If available and accessible, try using the reset buttons before using the steps below. Using the reset buttons can save time.
1. Unplug the LCD TV power cord from the power outlet.
2. Unplug any connected devices (DVD, Set-top boxes, etc...)
3. Press and hold the LCD TV power button for five seconds.
4. Plug the LCD TV power cord back into the power outlet and turn on the TV.
5. Open the on-screen menu to confirm that the LCD TV is responding again.
6. Turn off the LCD TV and reconnect the devices.
7. Turn on the LCD TV.

Hope it may help you;

Regards;
VOTIT

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