55EA8809-ZF (CHASSIS:ED34D) - LG TV Service Manual (repair manual). Page 20

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4.7. Inspection of light scattering
▪ Test Method
(1) Push “Power only” key.
(2) Push “HDMI” hot key.
(3)  Inspect  whether  light  scattering  is  occurred  in  internal 
black pattern or not.
(4) Push “Power only” key.
4.8. Option selection per country
4.8.1. Overview
- Option selection is only done for models in Non-EU.
4.8.2. Method
(1)  Press ADJ  key  on  the Adjustment  Remote  Control,  then 
select Country Group Meun
(2)  Depending on destination, select Country Group Code 04 
or  Country  Group  EU  then  on  the  lower  Country  option, 
select  US,  CA,  MX.  Selection  is  done  using  +,  -  or  ►◄ 
key.
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.
Result)  If,  the  LED  light  is  green  and  the  Module  shows 
normal stream → OK, Else → NG
4.10. 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
4.11. Camera Function Inspection
(1)  Objective : To check how it connects between Camera and 
PCBA normally, and their Function
(2)  Test Method : This Inspection is available only Power-Only 
Status. 
1) Slide Camera Up.
2) Camera’s Preview picture apeears on TV Set.
3) Slide Camera Down.
<Slide Up Status>
<Slide Down Status>
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