Gnd And Hi-Pot Test; Motion Remote Controller Inspection; Audio Output Check; 3D Function Test - LG 65UH8500 Service Manual

4.9. GND and Hi-Pot test

4.9.1. GND & HI-POT auto-check preparation
(1) Check the POWER CABLE and SIGNAL CABE insertion
condition
4.9.2. GND & HI-POT auto-check
(1) Pallet moves in the station. (POWER CORD / AV CORD is
tightly inserted)
(2) Connect the AV JACK Tester.
(3) Controller (GWS103-4) on.
(4) GND Test (Auto)
- If Test is failed, Buzzer operates.
- If Test is passed, execute next process (Hi-pot test).
(Remove A/V CORD from A/V JACK BOX)
(5) HI-POT test (Auto)
- If Test is failed, Buzzer operates.
- If Test is passed, GOOD Lamp on and move to next
process automatically.
4.9.3. Check point
(1) Test voltage
1)3 Poles
- GND: 1.5KVac/min at 100mA
- SIGNAL: 3KVac/min at 100mA
(2) TEST time: 1 second
(3) TEST POINT
1) 3 Poles
- GND Test = POWER CORD GND and SIGNAL CABLE
GND.
- Hi-pot Test = POWER CORD GND and LIVE &
NEUTRAL.
(4) LEAKAGE CURRENT: At 0.5mArms

4.10. Motion Remote controller Inspection

(1) Equipment : Motion remote controller for test, IR-KEY-
CODE remote controller for test
1) Check battery before test. (Recommend : Change
battery for every Lot.)
(2) Process
1) If you select the 'start key(wheel)' on the controller, you
can pairing with the TV SET.
2) You can check the cursor on the TV Screen, when select
the 'Wheel Key' on the controller
3) You must remove the pairing with the TV Set by select
'Back + Home Key' on the controller

4.11. AUDIO output check

No Item Min
1 Audio practical 9.0
max Output, L/R 8.5
(Distortion=10%
max Output)
2 Speaker
(8Ω Impedance)
*Measurement condition:
(1) RF input: Mono, 1KHz sine wave signal, 100% Modulation
(2) CVBS, Component: 1KHz sine wave signal (0.4Vrms)
(3) RGB PC: 1KHz sine wave signal (0.7Vrms)
Copyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
Typ Max Unit Remark
10.0 12.0 W Measurement
8.10 9.88 Vrms condition
10.0 15.0 W Measurement
condition

4.12. 3D Function test

4.12.1. Equipment
Pattern Generator MSPG-3233, HDMI mode 37, pattern No. 81
4.12.2. Process
(1) Connect HDMI (HDMI mode 371, Pattern No. 81)
(2) Insert 3D Mode, Select side by side mode.
(3) Without 3D-glasses, Like below figure.
(4) With 3D left-glass, Like below figure. (Center is RED)
(5) With 3Dright-glass, Like below figure.(Center is Blue)
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LGE Internal Use Only