I need to relocate the audio output jack on a Vizio VX20L
How is the back cover removed on this model. I've removed all the obvious screws and I can get the bottom to lift away slightly but it won't pop loose. Are there any hidden screws or is there a sequence to follow to get this cover off? Any ideas?
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Check whether the audio is muted by accidental press at remote control button. Enter its sound menu, and check it. If muted, as you know there will be no audio output. If not muted, check the speaker/s. If found OK; check and replace the damaged component/s at its audio output section circuit board. If needy, replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. Surf the site with patience. http://electro-medical.blogspot.com/ http://electronicshelponline.blogspot.com/
Have you tried the user manual? There may be a setting in the menu indicating whether to use internal speakers or some other device run through say, a cable or HDMI output, or turn off sound for those using a cable input to the TV from say, a cable box, but the sound goes to a separate sound system.
Also check that there is sound coming INTO the unit from your cable box if you have one and use RCA cables. If using HDMI input, there may be a menu item as well, to control whether to use input or not, as some people will have the cable box send the sound to a sound system instead of the TV.
I suspect what you're wanting to do is take the audio output from the TV and run it through your stereo system to leverage the large speakers. Correct?
I suggest using the RCA audio jacks (red and white pair) on the back of the TV. Most TV's still have these. Some are tied to a specific component, and some are general for all sound coming out of the TV. You connect this to the input RCA jacks on your stereo system.
The headphone jack on the TV could also work, but I suspect it may have a low level output. I don't understand how you say your MP3 player plays fine through the headphone jack, as that's an output, not an input. Unless there's some other jack?
This would be a mainboard issue. Since it effects both video and sound. I would replace the M/B. It's easy to do. You will need to post the model number of you TV so I could post the correct part number.
After you get the a new M/B you woudl flip the TV over and remove all the screws. Pop of the back and remove the screws from the M/B cover. Don't forget to remove the screws around the input jacks. After that it's easy. Just replace the M/B and put it all back together and your surfing again.