Advent laptop pc connect to lg television

no.

First check cable wire or whatever is connected to set for channels--the leads are connected and wiggle them with set on to see if it clears up--could be a connection where cable wire is connected at end--loose connection there etc.

If tuner is bad causing this and you use a box for signal--most have rear audio/video outputs you can connect to a unused video/audio input on rear of set---bypass the tuner in the set and operate set that way changing channels on box instead of set.

let me know if you have questions or have more information.

The RCA component cable set u are using have problems, damage the Audio connections input RCA AV connections RED WHITE cable probably have shorted out.Go to Radio Shack buy new set of RCA component cable for the replacement.

radio shack

The sound is muted unless a video signal is detected on this TV. The only work around would be to connect the camcorder or some other active video to tha input but using the IPOD for the audio.

This TV finds the connected input sources
automatically for AV1, AV2 and Component 1-
2. It is presumed that RGB and HDMI/DVI
sources are connected.

Check your setup to see if the audio is turn off but if you have a clear picture you should have sound.

Time to call a TV Tech if you are not going to repair the unit.

You have to make sure that the RCA cables are properly connected to the TV. Check the TV/Mode if it's set to AV1 (Audio/Video1) or AV2. You may check the TV remote to set it to AV1 or AV2.

From the DVD, the cable should be connected to OUT. And on the TV...video and audio should be connected to IN.

if your tv has vga input there should be a "line in" input very near it. VGA can only get its audio source through a "line in" connecting to the coaxial audio inputs will apply the music stream to a different video input on your tv. your tv has video 1, video 2, vga, and so on, but the vga cannot show video and then audio from the video/audio coaxial inputs. you will need something like a dual male tipped 3.5mm audio connector.

Good luck and pls rate this post

No picture or dark picture
Check R516 (56Kohms, 0.5w) or R517 (27Kohms, 0.25w) for high
Will not come out of standby, no picture
If at power on voltage on pin 37 of the micro drops low then reverts to 5v suspect memory chip ICA07 (Toshiba 23319016)
No picture No sound
Faulty IC TDA6107q on crt board
No picture on e-e, I.F output ok
This was due to switching chip IC3901 (M51292FP) on the scart panel

I found the fix. Had the same problem.
I right clicked on the sound speaker icon in the bottom right of Windows 7.
Chose Playback Devices.
Once this window opens, then make sure you are on the Playback tab.
Scroll down until you see the HDMI Device. (Mine was hidden at the bottom of the list.)
Then choose "set as default".
The sound will begin playing on the TV with only the HDMI connected......no need for an extra audio cable.