Samsung UA40B7000WR Service Manual page 157

3. Sound Test
1) The message "Does the problem still exist with this
sound test?" is displayed.
2) Press "Yes". This is a TV SET problem.
The message "Contact Samsung's call center at
1-800-SAMSUNG for assistance."is displayed
3) Press "No".
This is not a TV SET problem.
The message "If the self diagnosis picture is OK, picture
distortion may caused by your external device.
Please check connection. If the problem still persists,
refer to the external device's user manual." is displayed.
4. Troubleshooting
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