There is no volume on the tv, the volume bar goes all the way to 99 but there is no sound, i plugged in external speakers it worked but the tv volume is not working. How do i fix this problem?

If your Sharp LC-45D4CU television is not producing sound when you connect an external speaker or sound bar to the audio out jack, there are a few potential causes and steps you can try to fix the issue:

1. Check the audio out jack: Make sure the audio out jack is clean and not damaged, and that the connection to the external speaker or sound bar is secure.
2. Check the audio settings: Make sure the TV's audio settings are set to output sound through the audio out jack. You can check the settings in the TV's menu or user manual.
3. Check the external speaker or sound bar: Make sure the external speaker or sound bar is turned on and set to the correct input. Also, check the speaker or sound bar's connections and make sure they are secure.
4. Check the cables: Make sure the cables connecting the TV to the external speaker or sound bar are not damaged and are securely connected.

If these steps do not fix the issue, there may be a problem with the TV's audio out jack or the external speaker or sound bar. In this case, it is recommended to contact Sharp customer support or a TV repair technician for further assistance.
Regenerate response

I have a Sony Bravia and found a sound bar on ebay and I like the sound even better. Hope that helps Please make sure that when you plug in an external speaker it works.

Normally , you would expect the TV sound to stop when headphones are plugged in. Obviously not in this case. If you have a set of headphones, try them and see if the TV still has speakers on. If it does, then there may be a setting on the setup of the TV to get headphones to work. If the TV speakers stop, then I would think that the Logitech are not compatible with the TV. The only other thing would be is to get into the TV and disconnect the TV,s own speakers. If the wires are soldered on and not terminal connected, carefully cut 1 of the wires off near the speaker. If 1 wire is cut, the speaker wont work. Make sure both the TV and the additional speakers (If they have their own power supply) you are using are unplugged from the power before you go doing this...!

If your sound bar is plugged in it is bypassing your TV's speakers the same as if you plugged headphones in your phone you cant hear the main speaker

Think you can set sound bar to play via Bluetooth .go into the settings of the tv and look for Bluetooth.when the sound bar is on make it discoverable and the tv will pick it up.if you don't have Bluetooth then check to see if there is an option switch in settings to use external speakers.check cable and also check volume on sound bar is not muted.also see if you can link the tv to sound bar via optical link cable as this is much better than RCA red/ white audios which tend to fail as people pull on the cable rather than the plugs when removing them from equipment.

You can't but you can get round it. We have the same problem at work.
You have to stop using the internal speakers and buy a sound bar instead that provides more control.
There are a couple of ways of wiring a sound bar and the cheapest ones plug into the external/headphone socket and others plug into the coax, or component connections.

The TIVO system is not a problem. I have it and it works fine. Make sure all the cords are plugged and screwed in tight.

Most televisions have a setting that controls whether the TV uses its internal speakers or sends the sound to the audio out jacks for an external amplifier or speakers.
Try going through the settings menu and follow through the audio/speaker selections and confirm that the TV is set to use external speakers.
Best Regards,

If it's a new TV, then it might just be as high as it goes. A lot of HDTVs don't come with great speakers due to the small flat feature of the TV not allowing anything better.

You will have to get external speakers for the TV to experience better sound.
Here is a great sound bar that is well priced. http://www.amazon.com/Vizio-VSB205-32-Inch-Theater-Soundbar/dp/B004VGI2EK/ref=sr_1_2?ie=UTF8&qid=1359416740&sr=8-2&keywords=32+inch+sound+bar

I've personally heard that sound bar and they are surprisingly loud and hardly take up any room at all.

morer than likely yes on the back of 99% of tv's is audio out plug sone av cables (red-white) into the audio out of your tv and into audio in on your stereo/hifi unit.