My 47 inch AOC Hd Tv turns and and has video but no audio. How do I fix this?

Set your TV Input to AV. Are you sure that you have the audio and video cables connected properly? Video out to video in and audio out to audio in? It can be easy to get them reversed.

Try setting your TV Input to AV. Are you sure that you have the audio and video cables connected properly? Video out to video in and audio out to audio in? It can be easy to get them reversed.

This sounds like a power supply problem that causes the high voltage power supply to shut down when it warms up. A repair shop may be able to fix this.

this is from the LG website about that TV.
- Rear,
2 x Composite video/audio input (RCA phono x 3) - Side,
2 x S-Video input (4 pin mini-DIN),
1 x USB (4 pin USB Type A),
1 x Audio line-out (RCA phono x 2),
2 x Component video input (RCA phono x 3),
2 x Audio line-in (RCA phono x 2),
1 x Digital audio output (optical) (TOSLINK),
1 x Digital audio output (coaxial) (RCA phono),
3 x HDMI input (19 pin HDMI Type A),
1 x RGB input (15 pin HD D-Sub (HD-15)),
1 x Audio line-in (Mini-phone stereo 3.5 mm),
1 x Serial (9 pin D-Sub),
1 x Remote control (Mini-phone 3.5 mm)

Either unplug dish from tv or use the antenna side which is HD and program channels and see if volume the same, if not and is OK then it's your Dish bring your sound down or audio cables bad.

unplug it and hold the power button for ten seconds then release and plug your tv back up it resets it and should fix your problem

baird 47 code for sky remote

You might name the model of the TV.

If the TV is a monitor it doesn't have any audio capabilites. What you should do, and owners of monitors must do, is get the best digital or analog audio from the same source the TV would get it - cable/sat/dvd/bd/game.

There is nothing to be gained by washing hi-fi multi-channel audio through a TV's sub-par audio electronics and turning it into grainy analog audio for consumption by higher-fi audio-specific equipment..

The AOC Envision A17W221 only has a NTSC tuner (analog). If you are using an OTA antenna, you probably need a digital (ATSC) to NTSC converter box to get any TV signals. These include the ones sold with the government coupon at the switchover. Very few analog stations still broadcast; they were limited to low power transmitters. Thus you need to be close to the transmitter to receive a watchable TV program. For the best signal to the AOC A17W221, connect the component video out on the converter box to the component in on the TV. The specifications for the A17W221 are available on the Amazon sale page, https://www.amazon.com/International-A17W221-17-Inch-HD-Ready-Panel/dp/B0009IRHL8/ref=cm_cr_arp_d_product_top?ie=UTF8 . This monitor is no longer available from Amazon but the site is still there. Newegg also has the specifications for this monitor.

Unfortunately, I can't find the manual for the A17W221. AOC only lists a few manuals for current models. These are available here: http://www.aocmonitorap.com/my/user_manual.php .

I hope this helps. To check for available stations in your area, use a site like antennaweb.org or tvfool.com. Antennaweb gives very conservative estimates on stations that you should be able to receive with an external antenna.

Cindy Wells

If you are using a set top box this might be caused by turnig the box on at the same tie as you turn the tv on or slightly after you turn the tv on.  If you are using compnent or HDMI inputs the set needs to see the signal as it is turned on to know what formt the signal is in. 

I’m happy to help further over the phone at https://www.6ya.com/expert/dewayne_4a10eab6caecdb92