What video cable are you using between the TV and the computer? If you are using a VGA, DVI or DVI-HDMI cable, you need to connect a 3.5 mm audio patch cord between the computer's audio out and the PC audio in on the TV. The audio out on the computer will be the speaker (green) port on the back of a desktop or the headphone jack. (Make sure that this jack works by connecting a different set of computer headphones or speakers to the computer.) The audio in jack on the TV is above the RGB input; it's just to the left of the digital audio out.
Check that the correct audio output is selected. From the Hardware
and Sound Control Panel, look at Manage Audio Devices and the Playback
option. If your computer has an HDMI port, that may have become the
default audio output device. Change this setting. (Not all TVs can
accept HDMI signals from a computer but a number of video cards are
encoding this as the default during install.) Try a new audio patch cable between the TV and the computer.
If another set of speakers doesn't work, you need to check the drivers for your computer. In the Device Manager (click Start > Control Panel > Hardware and Sound > Device Manager), scroll down to the section for Sound controllers and expand it. Then check for updates for the audio driver. If necessary, uninstall the driver (by right clicking on the audio driver). Then shut down the computer and restart it.
The manual for the M197WD is available from LG here: http://www.lg.com/uk/it-products/monitors/LG-tv-monitor-M197WD.jsp . Click on the support tab and the link is on the right side of the page.
My directions are for Windows 7; it's slightly different for other versions of Windows.
I hope this helps. Please post a comment with the video connection that you are using if you need additional assistance.
Cindy Wells
SOURCE: 42 inch LG Plasma TV - Lost picture
Our LG 50" plasma tv screen went black after a popping noise but still had sound, after great diliberations decided to take the back off and have a peek!
We unplugged the tv and tested the fuses (there were three we could see) one had blown, the one on the left as you look at the back of the tv it also has one above it. We wrote the code/seriel number down and took the fuse to the electrical wholesalers Maplin and bought a pack of 10 fuses for £1.29 replaced the fuse in the tv and everything now fine!!!!!!
Hope this might be of use to anyone whose lost the picture after a loud popping/snacking noise but still has sound.
SOURCE: LG 42'' TV has no sound but great picture. How do I get the sound?
You shouldn't need anything plugged into the accessory jacks to get local sound from your set.
Go through the main setup menu and check audio settings; they may be set to turn off the internal speakers to send the sound to a home theatre that you apparently don't have.
Most sets have that as a selection and supply L-R audio for an external system and mute the internal speakers.
FYI: The three connectors you mention are coded as follows:
Red - right channel audio
White - left channel audio
Yellow - composite video (contains synchronization signals and video)
These may be input connectors (for external VCR/DVD decks) so check your owner's guide to verify.
SOURCE: TV screen went dark, but sound still there.
your backlight burnt out, this will be a maybe several hundred dollar repair. the screen is backilt by a very expensive flourescent light, without that light, the screen will be black.
SOURCE: LG Flat Screen TV has no picture, but sound
The times my TV at home has done this it is because I'm tuned to an HD source and my TV doesn't have HD. Or vice-versa, I tune to a regular channel and I have the TV set to HD.
If you have NO picture, like the channel number or volume bar don't appear, then this isn't the problem at all.
I would say check the Video (Yellow) cable in the back, or try setting up and playing a DVD and see what happens. maybe cycle through video modes, Digital etc.
If none of this helps, comment on the post and we can exchange more information.
Good luck!
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