Samsung UN46ES7500FXZA E-Manual page 244

No: Select
displays properly. There may be a
problem with your external equipment.
Please check your connections. If the
problem persists, refer to the external
device's user manual.
●
Sound Test
Use the built-in melody to check for
sound problems.
N
If you hear no sound from the TV'
s speakers, before performing the
No if the test picture