Article ID : 00182568 / Last Modified : 16/08/2017

Notice to Owners of STR-DG820 Multichannel A/V Receiver

Applicable Products and Categories of This Article

2009-04-23

Under certain circumstances, when the BRAVIA® Sync feature is activated on both your Sony television and your STR-DG820 A/V Receiver or the HDMI control feature is activated on a non-Sony television, the volume level may suddenly increase above the maximum level on your receiver; otherwise, this issue does not affect the overall usability of your receiver.

This issue is caused by a problem with the receiver’s firmware. In order to address this issue, you need to send your receiver in to Sony for a firmware update.

To ensure customer satisfaction, Sony will provide a free repair service when this symptom occurs within certain units covered by the serial numbers indicated in the serial number validation box below.

We apologize for any inconvenience this may cause and your kind understanding and cooperation would be much appreciated.

[Applicable model]
Sony’s A/V Receiver: STR-DG820

[Applicable serial number]
To determine whether your
STR-DG820 A/V Receiver purchased  in Asia Pacific region may be affected, click here to validate Serial No


Please contact your nearest
Sony Service Center  for assistance. If Sony determines that you have one of the affected units, we will update your receiver’s firmware free of charge.

Important Notes:

  • If you choose not to update your receiver, we recommend that you do not activate the BRAVIA Sync or HDMI control feature on your receiver or, if you have activated it, that you turn this feature off.
  • The repair process will reset the receiver back to the original settings. It is recommended that you make note of all desired customized settings before requesting the repair.


(Privacy policy)
Personal information, such as your name, mailing address and/or telephone number, provided to the Sony service center shall be kept and used by Sony only for responding to your inquiries related to this announcement, the free repair service mentioned in this announcement and other related services. In certain cases, your personal information may be given to third-party companies to whom Sony has consigned certain elements of such service. In this event, Sony will ensure that such third-party companies abide by the same strict guidelines with regard to the use, storage and disposal of your personal information.

*Please contact your local Sony service center if you wish to inquire, modify, erase or suspense to use your personal information provided in connection with this announcement.  (Please be advised that in case of erasing or suspension of use of your personal information, Sony might not be able to provide appropriate services in accordance with the purpose of usage mentioned above.