Sony is offering a firmware update for some STR-DA5300ES units with compatibility issues for DTS-HD soundtracks.
Muting of audio output when playing back DTS-HD soundtrack for an hour.
Applicable serial number
To determine whether your STR-DA5300ES may be affected in Asia Pacific region, click here to validate Serial Number.
How to look for serial number
The serial number is indicated on the nameplate at the rear of the unit, as shown in picture below:
If you have further questions, please contact your local service centre. A list of the Sony service centres can be found in the Service Centres page.