Sony HT-A3000 Operating Instructions Manual page 182

Help Guide
Sound Bar
HT-A3000
The TV sound from this speaker system lags behind the image.
Set the adjustment value of the delay between the picture and sound to 0 msec if it is set to the range between 25
msec and 300 msec.
A time gap between the sound and picture may occur depending on the sound source. If your TV has a function that
delays the image, use it for adjustment. For details, refer to the operating instructions of your TV.
Related Topic
Adjusting the Delay Between the Picture and Sound
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