Connecting to the headphone jack on a TV, A/V receiver, or computer will usually disable the built-in speakers automatically.
If you want the speakers to stay on while you use headphones:
- Use a different audio output on the device (such as RCA jacks, optical output, or digital audio out).
- Check the TV's Audio Menu for a setting that allows speakers and headphones to work at the same time.
- Connect to the cable box or streaming device instead of the TV.