50LA66XX, 50LA6608, 50LA660S (CHASSIS:LD33B) - LG TV Service Manual (repair manual). Page 18

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4.3. Local Dimming Function Check
Step 1) Turn on TV.
Step 2)  At  the  Local  Dimming  mode,  module  Edge  Backlight 
moving right to left Back light of IOP module moving.
Step 3) Confirm the Local Dimming mode.
Step 4) Press "exit" key.
4.4. Magic Motion Remote control test
-  Results  are  automatically  marked  in  Instart  OSD  after 
through the AP/Magic Remocon Equipment on the line
4.5. 3D function test
(Pattern Generator MSHG-600, MSPG-6100[Support HDMI1.4])
* HDMI mode NO. 872 , pattern No.83
(1)  Please input 3D test pattern like below.
(2) When 3D OSD appear automatically, then select OK key.
(3) Don't wear a 3D Glasses, check the picture like below.
4.6. Wi-Fi Test
Step 1) Turn on TV
Step 2) Select Network Connection option in Network Menu.
Step 3) Select Start Connection button in Network Connection.
Step 4)  If the system finds any AP like blow PIC, it is working 
well.
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