No sound but good picture.

• Check the volume control.
• Press or + button to cancel muting.
• Set [Speakers] to [TV Speakers] in the [Sound] setting. If it is set to [Audio System], TV speakers do not output sound regardless of the TV’s volume control.
• When using HDMI input with Super Audio CD or DVD-Audio, DIGITAL AUDIO OUT (OPTICAL) may not provide an audio signal.

Audio noise.

• Make sure that the antenna (aerial) is connected using a 75-ohm coaxial cable.
• Keep the antenna cable away from other connecting cables.
• To avoid TV interference, make sure to use an undamaged antenna (aerial) cable.

No audio or low audio with home theatre system.

• Set [Speakers] to [Audio System] in the [Sound] setting.
• Set [Audio Out] to [Fixed] in the [Sound] setting.
• If you select an analogue (RF) channel and pictures are displayed correctly, change the TV broadcast system. Press the HOME button, then select [Settings] → [Analogue Set-up] → [Manual Programme Preset] → [TV System]. (Availability of [Manual Programme Preset] or option name differs depending on the region/country/situation.)

Distorted sound.

• Check the antenna (aerial)/cable connection.
• Keep the antenna (aerial)/cable away from other connecting cables.
• Keep the TV away from electrical noise sources such as cars, hair-dryers, Wi-Fi units, mobile phones, or optical device.
• When installing optional device, leave some space between the device and TV.
• Perform [AFT] to improve sound for analogue reception.
• Set [Audio Filter] to [Low] or [High] to improve sound for analogue reception. ([Audio Filter] may not be available depending on your region/country.)