Sony KDL-70W840B 手册
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> Sound Symptoms
Sound Symptoms
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.
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