Hdmi Arc Function Inspection; Uhd 4K Test; Tool Option Selection - LG 79UB980T-TA Service Manual

4.8. 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 (HDMI2)
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)
4.9. MHL Test
(1) Turn on TV
(2) Select HDMI4 mode using input Menu.
(3) Set MHL Zig(M1S0D3617) using MHL input, output and
power cord.
(4) Connect HDMI cable between MHL Zig and HDMI4 port.
(5) Check LED light of Zig and Module of Set
Copyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes

4.10. UHD 4K Test

(1) Video Inspection(UDG-4004NS)
1) Insert the HDMI Cable to TV Set.
2) Convert to HDMI Mode using TV/AV key on ADJ remote
control
3) Inspect the sound and picture operation well.
(Color condition, Picture noise, Sound distortion etc.)
4)Inspection 2D → 3D conversion
(2) Pattern Inspection (MSPG-7100)
1) Insert the HDMI Jack to HDMI 3 Port.
2) Convert to UHD Inspection Pattern. (Use remote control)
3) Check Video and Sound.
4) Convert to 64 Gray Inspection Pattern.
5) Check Video and Sound.
6)Inspect HDMI-CEC function. (Push Play & Pause button)
(3) 4K Inspection.(HEVC Inspection model only)
1) Insert USB that 4K video file is saved.
2) Check that the video plays normally.

4.11. Tool Option selection

- Method : Press "ADJ" key on the Adjustment remote control,
then select Tool option.
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.
- 21 -
LGE Internal Use Only