LG 50LF65 Series Service Manual page 19

4.5.3. EYE-Q Green Function Inspection
Step 1) Turn on the TV.
Step 2) Press 'EYE' key on the adjustment remote-control.
Step 3) Cover 'Eye Q sensor' on the front of set with your
hands, hold it for 6 seconds.
Step 4) Check "the Sensor Data" on the screen, make certain
that Data is below 10. If Data isn't below 10 in 6
seconds, Eye Q sensor would be bad. You should
change Eye Q sensor.
Step 5) Uncover your hands from Eye Q sensor, hold it for 6
seconds.
Step 6) Check "Back Light(xxx)" on the screen, check data
increase . You should change Eye Q sensor.
4.6. Wi-Fi Test
Step 1) Turn on TV
Step 2) Select Wi-Fi Connection option in Network Menu.
Step 3) Click Off Button to On in Wi-Fi Connection.
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Only for training and service purposes
Step 4) The system finds any AP like blow PIC.
Step 5) Select the AP you want to connect.
4.7. LNB voltage and 22KHz tone check
(only for DVB-S/S2 model)
▪ 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 Remote control to
make LNB on.
(4) Check LED light 'ON' at 18 V menu.
(5) Check LED light 'ON' at 22 KHz tone menu.
(6) Press Blue key(ETC+PIP INPUT) in Adj Remote control
to make LNB off.
(7) Check LED light 'OFF' at 18 V menu.
(8) Check LED light 'OFF' at 22 KHz tone menu.
▪ Test result
(1) After press LNB On key, '18 V LED' and '22 KHz tone
LED' should be ON.
(2) After press LNB OFF key, '18 V LED' and '22 KHz tone
LED' should be OFF.
4.8. Option selection per country
4.8.1. Overview
- Option selection is only done for models in Non-EU
4.8.2. Method
(1) Press ADJ key on the Adj. R/C, then select Country Group
Meun.
(2) Select Country Group Code 04 or Country Group EU.
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