No sound but good picture.

• Check the volume control.
• Press MUTING or VOL + button to cancel muting.
• Set [Speakers] to [TV Speakers] in the [Sound] setting. If it is set to [Audio System], the 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 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 cable.

No audio or low audio with a home theater system.

• Set [Speakers] to [Audio System] in the [Sound] setting.
• Set [Headphone/Audio Out] to [Audio Out] and set [Audio Out] to [Fixed] in the [Sound] setting.

Distorted sound.

• Check the antenna/cable connection.
• Keep the antenna/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 devices.
• When installing an optional device, leave some space between the device and TV.
• Perform [Fine Tune]/[AFT] in [Manual Program Preset] to improve sound for analog reception.
• Set [Audio Filter] to [Low] or [High] to improve sound for analog reception. ([Audio Filter] may not be available depending on your region/country.)