How to fix when there's no sound using SONY TV

If there is  no sound when you connect the transmitter with your Sony TV via optical cable, please go to the settings of your TV using your Sony TV remote:

1. Press the (Quick Settings) button on the remote control, then select [Settings] — [Display & Sound] — [Audio output] — [Speakers] — [Audio system].

2. If the audio system is not compatible with Dolby Digital or DTS, set [Settings] — [Display & Sound] — [Audio output] — [Digital audio out] to [PCM].

3. Check if the [Digital audio out volume] setting of the TV is at maximum.
Press the (Quick Settings) button on the remote control, then select:
[Settings] — [Display & Sound] — [Audio output] — [Digital audio out volume]