20 Most Recent Sharp AQUOS 52in. LE820 LED LCD HDTV Questions & Answers

1st thing to do is remove the batteries from the remote and see if it still changes by itself, if it does then I'd look at main board issues

Fault to the main power supply regulator section. Either it will be a separate board, or the part of main board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size....

If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/

Fault with the main power supply regulator board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. 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/ It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.

Please check that the sleep timer did not somehow get set. If it's not the sleep timer, check if the panel stays ON longer after it's been off for awhile to cool down. Possibly a heat problem with the power supply or main board.

Select digital AND analog when doing a channel search

Make sure the sound isn't muted or sent to the optical output. If that isn't it then the main board on the TV is bad.

No. You'll need to replace the power supply board too.

It will be a metric bolt. They very from model # to model #. Don't get them too long as they could go past the insert and into a PC board! If you were too Google your model # you may just fine what Metric bolt it would take to mount it. Any good hardware store would have the correct metric bolt or screw for you.

What ever is being viewed on the screen the audio from that source is going to the optical out. You may have to go into the audio menu and turn off the speaker in the tv.

Hi, try setting the FORMAT to NTSC, or AUTO, in settings this is what happens when the wrong one is chosen, if you have it wired up correctly also you must choose COMPOSITE Video INPUT, this is the Yellow wire, this goes color to color in the jacks, same with the other two, the other two, the Red & White are the Audio stereo left & right.

http://www.scribd.com/doc/19365521/Sharp-AQUOS-LC404652LE700UN-Operation-Manual

above is an operations manual so you can check exactly how to do this.

This sounds like a setting that can be adjusted. What I like about some of the Sharp televisions is the av mode setting (preset brightness/contrast adjustments). I am not looking at the manual for this model so I'm not sure if this is an option on this television. However with this being a high end aquos model there is free assistance available to you. You can register your television at aquos advantage and chat live with an aquos advisor at Sharp's Midwest Corporate Headquarters. The agent may advise you to call in if your television need and Industry Initialization because you have to be talked through it. I advise the chat reps initially because when you call you aren't able to speak with the Midwest Corporate Sharp reps unless your call is being escalated.

http://www.aquosadvantage.com

Download manual here:
http://www.sharpusa.com/CustomerSupport/ProductDownloads.aspx
Enter product model then search. Click on result manual to download in PDF format.
I have a copy of the manual if you have specific questions.