20 Most Recent Sharp Aquos LC37D44U 37 in. LCD HDTV Questions & Answers

You have also ruled the set out if only "a few channels" as set is not smart enough to know what channel you are on--you can check all the audio settings but if a box is used for signal the problem may be there.

Hello,

The reason your television keeps popping up the menu is simply because, either the remote or the televisions menu button is stuck.

To test if it is the remote, remove the battery from the back of the remote and try to operate the television from the buttons on the television to see if it works, if it pops up, then it means the problem is not from the remote and its from the television.

Either ways you have to open the remote and clean the panel with naphthalene, then adjust the menu button on it. or you can as well get a new remote for your television if you cannot clean it on your own.

Also to fix the television if it is detected as the fault, get the appropriate screwdriver, open up the television, then try to locate the menu button, then you adjust it and try to operate with either the remote of the menu key on the television.

Once it is seen to be working, ensure that the television is properly coupled back.

Always make sure the keys on the coputer and the television are not pressed too hard.

Take care

You have to so a channel search in the setup menu.

I tried all of your suggestions, to no avail. I contacted the manufacturer and they haven't made this TV stand for several years. I guess I'll have to think of a way to hold the glass shelf up another way.

I had the same problem. all the service reset would only make the display come on for a few second with no "k" on the screen - only the channel would show up. I purchased a complete set of board for the lcd on ebay, and started swapping them one by one. The inverter boards were the culpret. Tele working 100% since that board swap.

Schematic diagrams are in PDF, and cannot upload by this window. If you wish to get some details, check this link. http://electronicshelponline.blogspot.com/ Selecting the view option, either to Mosaic / Time slide, can be selected by the drop-down list, at the top left of the display window, will make surf easy. You can also do a search, by type in the brand name/model number/IC used, in the search box at the top right of the display window.

Just unplug the TV from AC mains wall socket. Replug it after 10 minutes or so. This must make the TV a hard reset.

Does the set have audio when a DVD etc is connected to audio/video jacks on the rear? This will narrow down where the problem is(if DVD works sound circuit is ok).

I see so many here with no sound/nopicture issues:ISSUES: 1. IF sound main fuse/s are good.2. If no power or standby check main fuse, standby power supply and any signsof damage you can see---burnt parts etc.3. almost all these sets the troubleshooting involves checking voltages on the main power board to narrow down theproblem.4. Be safe and if you do not know what you are doing don't open the set.Answers to issues:1. RE:fuses---if a blown fuse is found get a good replacement(not the genericones like Radio Shack). Many fuses are special even aside from amperage--Don'tput a higher rated amperage fuse in the set for any reason.2. RE: power supply in set: if total dead aside from main fuse the set uses astandby power supply that runs 7/24 and a main supply (some are combined andsome not.Here aside from checking fuses you want to examine all the filter caps on thepower/standby to see if any are puffed up or buldged up in some fashion--Iattach a photo of a good one---top should be silver metal and PERFECTLY flatand have no brown material coming out on top or bottom.What happens in the standby area is they use caps with too low a voltage rating(saves money) which causes them to fail in a year or two---the standby runs7/24 and the heat dries out the caps and they fail.3. Trouble shooting consists of the above and then at some point you have to buyand try a board to see if it fixes it or not.4. Safety first--no TV set is worth getting injured or even killed over.If set is opened at least look for puffed up and bad caps like in thisphoto.