LG 42LD550 Owner's Manual page 73

Picture Test/Sound Test
This function is a customer support function that can execute picture and sound tests.
□ Software Update
ꔑ Picture Test
□ Sound Test
□ Product/Service Info.
□ Network Test
Close
□ Software Update
□ Picture Test
ꔑ Sound Test
□ Product/Service Info.
□ Network Test
Close
1
RED
or
MENU
H
ome
2
Select Picture Test or Sound Test.
ENTER
3
Select Yes.
ENTER
4
Return to the previous menu.
BACK
Return to TV viewing.
EXIT
Do you have a problem in this test
?
screen?
Do you have a sound problem in this
?
screen?
Select Customer Support.
RED
Yes No
Yes No
73