Sony NSZ-GT1 - Manual (Page 59)

are not available from the Internet TV Box.
Tip
See related links:
IR Blaster Settings (Preparing to Control an AV Receiver)
IR Blaster Settings (Preparing to Control Other Devices)
HDMI settings
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To enjoy surround sound from a Cable/Satellite Box
Use the IR Blaster cable to control connected devices with the Keypad.
To output the sound from the AV Receiver, press Fn + 1 and select [Picture & sound] - [Audio
output priority] - [Optical].
To enjoy surround sound from a Cable/Satellite Box, connect the Cable/Satellite Box and AV
Receiver directly with an optical or coaxial digital cable. For details, refer to the manual supplied
with the AV Receiver.
In this case, change the input of the AV Receiver to output the sound from the Cable/Satellite Box.
Note
When you make a connection with this method, DTS-HD and Dolby TrueHD surround sound
are not available from the Sony Internet TV.
NSZ-GT1 59