LG Electronics 55LA970V/W/9-ZA Audio, Hdmi ARC Function Inspection, Ship-out mode checkIn-stop

4.11. HDMI ARC Function Inspection

(1)Test equipment

-Optic Receiver Speaker

-MSHG-600 (SW: 1220 ↑)

-HDMI Cable (for 1.4 version)

(2)Test method

1)Insert the HDMI Cable to the HDMI ARC port from the master equipment (HDMI1)

2)Check the sound from the TV Set

3)Check the Sound from the Speaker or using AV & Optic TEST program (It’s connected to MSHG-600)

*Remark: Inspect in Power Only Mode and check SW version in a master equipment

4.12. Ship-out mode check(In-stop)

▪After final inspection, press "IN-STOP" key of the Adjustment remote control and check that the unit goes to Stand-by mode.

4.13. Tool Option selection

- Method: Press ADJ key on the Adj. R/C, then select Tool option.

4.14. GND and Internal Pressure check

4.14.1. 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

-If NG, Buzzer will sound to inform the operator.

-If OK, changeover to I/P check automatically. (Remove CORD, A/V form AV JACK BOX.)

-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.

4.14.2. Checkpoint

▪TEST voltage

-GND: 1.5 KV / min at 100 mA

-SIGNAL: 3 KV / min at 100 mA

▪TEST time: 1 second

▪TEST POINT

-GND TEST = POWER CORD GND & SIGNAL CABLE METAL GND

-Internal Pressure TEST = POWER CORD GND & LIVE &

NEUTRAL

▪LEAKAGE CURRENT: At 0.5 mArms

5.Audio

No.	Item	Min	Typ	Max	Unit	Remark
	Audio practical	9.0	10.0	12.0	W	Measurement condition
1.	max Output, L/R
	(Distortion=10%	8.5	8.9	9.8	Vrms	Auto Volume :Off
	max Output)					Audio EQ : Off
2.	Speaker (8 Ω		10.0	15.0	W	Clear Voice : Off
	Impedance)					Virtual Surround:Off

Measurement condition:

(1)RF input: Mono, 1 KHz sine wave signal, 100 % Modulation

(2)CVBS, Component: 1 KHz sine wave signal 0.5 Vrms

(3)RGB PC: 1 KHz sine wave signal 0.7 Vrms

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