I got new Nexus 7 tablet finally. It feels good in my hand. As soon as I got it, I set it up few minutes. I wanted to see how the video plays on the Nexus 7 device. I played one of the YouTube videos on this new Nexus 7 tablet with jelly bean android os.
Video screen size looks good. I noticed sound is not working. If sound or volume is not working on your new Nexus 7 tablet, you have couple of options to try.
1. Make sure Nexus 7 is not in Silent Mode
a. Go to Apps > Settings > Tap on Sound
b. Tap on Volumes option as shown below
c. If media volume or notification volume settings are turned off or in silent mode, tap on the slide bar to change them
Try playing the video or music to see if you sound is working properly.
2. Reboot Nexus 7 tablet
If you are still having problem getting sound to work on Nexus 7, try turning off the Nexus 7 using side power button and turning it on again. Restarting Nexus 7 worked for me. That was strange I know.
3. If you installed any apps, check for them
If you installed sound related apps like muting the sounds etc, they might be interfering and causing sound not to work properly.
Also, read Nexus 7 Tips to save battery, stream videos to tv etc