LG EA71G, Руководство по обслуживанию

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Only for training and service purposes
4.6. Wi-Fi MAC Address Check
4.6.1. Using RS232 Command
Command Set ACK
Transmission [A][l][][Set ID][][20][Cr] [O][K][x] or [N][G]
4.6.2. Check the menu on in-start
4.7. Local Dimming Inspection (Optional)
4.7.1. ALEF models with local dimming
(1) Press ‘TILT” key of the Adj. R/C and check moving
patterns. The black bar patterns moves from top left to
bottom right.
If local dimming function does not work, a whole screen
shows full white.
4.8. GND and Hi-Pot test
4.8.1. GND & HI-POT auto-check preparation
(1) Check the POWER CABLE and SIGNAL CABE insertion
condition
4.8.2. 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.
4.8.3. 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
4.9. 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
4.10. AUDIO output check
No Item Min Typ Max Unit Remark
1 Audio practical
max Output, L/R
(Distortion=10%
max Output)
9.0
8.5
10.0
8.10
12.0
9.88
W
Vrms
Measurement
condition
2 Speaker
(8Ω Impedance)
10.0 15.0 W Measurement
condition
*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)