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
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