42LV5500-ZC, 42LV550T-ZC, 42LV550W-ZC, 42LV5590-ZC (CHASSIS:LD12E) - LG TV Service Manual (repair manual). Page 17

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4.5. EYE-Q function check
Step 1) Turn on TV
Step 2) Press EYE key of Adj. R/C
Step 3) Cover the Eye Q II sensor on the front of the using
your hand and wait for 6 seconds
Step 4) Confirm that R/G/B value is lower than 10 of the “Raw
Data (Sensor data, Back light)”. If after 6 seconds,
R/G/B value is not lower than 10, replace Eye Q II
sensor.
Step 5) Remove your hand from the Eye Q II sensor and wait
for 6 seconds.
Step 6) Confirm that “ok” pop up. If change is not seen,
replace Eye Q II sensor.
4.6. Local Dimming Function Check
(1) Turn on TV.
(2) At  the  Local Dimming mode, module Edge Backlight
moving Top to Bottom Back light of IOP module moving.
(3) Confirm the Local Dimming mode.
(4) Press “exit” key
4.7. Magic Motion Remote control test
- Equipment : RF Remote control for test, IR-KEY-Code
Remote control for test
- You must confirm the battery power of RF-Remote control
before test.(recommend that change the battery per every lot) 
- Sequence (test)
1) if you select the ‘start key(Mute)’ on the controller, you can
pairing with the TV SET.
2) You can check the cursor on the TV Screen, when select
the ‘OK’ key on the controller.
3) You must remove the pairing with the TV Set by select
‘Vol+(STOP)’ key on the controller.
4.8. 3D function test
(Pattern Generator MSHG-600, MSPG-6100 [Support HDMI 1.4])
* 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.
4.9. LNB voltage and 22 KHz tone check 
(only for DVB-S/S2 model)
(1) Test method
1) Set TV in Adj. mode using POWER ON.
2) Connect cable between satellite ANT and test JIG.
3) Press Yellow Key (ETC+SWAP) in Adj Remocon to
make LNB on.
4) check LED light ‘ON’ at 18V menu.
5) check LED light ‘ON’ at 22KHz tone menu.
6) Press Blue Key (ETC+PIP INPUT) in Adj Remocon to
make LNB off.
7) Check LED light ‘OFF’ at 18 V menu.
8) Check LED light ‘OFF’ at 22 KHz tone menu.
(2) Test result
- After press LNB On key, ‘18 V LED’ and ‘22 KHz tone
LED’ should be ON. 
- After press LNB OFF key, ‘18 V LED’ and ‘22 KHz tone
LED’ should be OFF. 
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