Sony MHC-GNZ777D Operating Instructions Manual page 25

Operating the THEATRE SYNC
function
Point the remote in the direction of
the TV and this unit. Then, hold
down THEATRE SYNC until the TV
is turned on and the input source is
changed correctly.
If this function does not work, change the
transmission time. The transmission time
varies depending on the TV.
To change the transmission time
>
Hold down To select the following
and press transmission time
1 0.5 (Default)
2 1
3 1.5
4 2
5 2.5
6 3
7 3.5
8 4
25 GB