LG 77EG9700 Service Manual page 19

6.3. Audio Output Inspection
(1) INPUT CHECK –S KEY OF ADJUST R EM O TE
CONTROLLER TO INSPECT SPEAKER
(2) When you click the first, the output volume of left & right
main speakers must be 50
(3) When you click the second, the output volume of left &
right main speakers must be 80.
(4) When you click the third, the output volume of left & right
main speakers must be 100
(5) When you click the fourth, the output volume of left main
speaker must be 50.
(6) When you click the fifth, the output volume of right main
speaker must be 50.
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Only for training and service purposes
7. Joystick check
- Before you start a test, you must run a 'Power Only Mode'.
(1) Channel Up Test : Press UP KEY OF SET
(2) Channel Down Test : Press DOWN KEY OF SET
(3) Volume Up Test : Press Left KEY OF SET
(4) Volume Down Test : Press Right KEY OF SET
(5) Enter Test : Press Enter KEY OF SET
- Don't need to run a test with this sequence. For example, the
sequence such as 'Right → Up → Down → Left
→ Enter' is allowed.
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