LG 42GA6400-UD Service Manual page 17

4.5. Option selection per country
4.5.1. Overview
(1) Press ADJ key on the Adj. R/C, and then select Country
Group Menu.
(2) Depending on destination, select KR or US, then on the
lower Country option, select US, CA, MX. Selection is done
using +, - KEY
4.6. Tool Option Inspection
▪ Method: Press Adj. key on the Adj. R/C, then select Tool option.
Model Tool 1 Tool 2
47GA6400-UD 33207 8723
42GA6400-UD 33206 8723
4.7. Local Dimming Inspection (Optional)
(1) Press 'TILT" key of the Adj. R/C and check moving
patterns. The black bar patterns moves from top to bottom.
If a local dimming function does not work, a whole screen
shows full white
4.8. Ship-out mode check (In-stop)
▪ After final inspection, press In-Stop key of the Adj. R/C and
check that the unit goes to Stand-by mode.
▪ After final inspection, Always turn on the Mechanical S/W.
4.9. WIFI MAC ADDRESS CHECK
a. Using RS232
Command
Transmission [A][l][][Set ID][][20][Cr]
b. check the menu on in-start
Note that there are Wi-Fi MAC and MAC address.
Wi-Fi MAC is used for wireless network and MAC address is used
for wired network
Copyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
Tool 3 Tool 4 Tool 5 Tool 6
30512 13356 18441 1322
30512 13356 18441 1322
Set ACK
[O][K][x] or [N][G]
5. GND and Internal Pressure check
5.1. Method
(1) GND & Internal Pressure auto-check preparation
- Check that Power Cord is fully inserted to the SET.
(If loose, re-insert)
(2) Perform GND & Internal Pressure auto-check
- Unit fully inserted Power cord; Antenna cable and A/V
arrive to the auto-check process.
- Connect D-terminal to AV JACK TESTER
- Auto CONTROLLER (GWS103-4) ON
- Perform GND TEST
Tool 7
- If NG, Buzzer will sound to inform the operator.
13963
- If OK, changeover to I/P check automatically.
(Remove CORD, A/V form AV JACK BOX)
13963
- Perform I/P test
- If NG, Buzzer will sound to inform the operator.
- If OK, Good lamp will lit up and the stopper will allow the
pallet to move on to next process.
5.2. Checkpoint
(1) Test voltage
- GND: 1.5KV/min at 100mA
- SIGNAL: 3KV/min at 100mA
(2) TEST time: 1 second
(3) TEST POINT
- GND Test = POWER CORD GND and SIGNAL CABLE
GND.
- Hi-pot Test = POWER CORD GND and LIVE & NEUTRAL.
(4) LEAKAGE CURRENT: At 0.5mArms
6. EYE-Q Operation check
Step 1) Turn on the TV..
Step 2) Press 'EYE button' on the adjustment remote-
controller.
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.
<Step 2>
<Step 4>
- 17 -
<Step 3>
<Step 6>
<Step 5>
LGE Internal Use Only