55LV355B-UA, 55LV355C-UA (CHASSIS:LA0AC) - LG TV Service Manual (repair manual). Page 11

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4.2.1 Overview   
• It is a VESA regulation. A PC or a MNT will display an

optimal resolution through information sharing without any
necessity of user input. It is a realization of “Plug and Play”.   

4.2.2 Equipment  
• Since embedded EDID data is used, EDID download JIG,

HDMI cable and D-sub cable are not need. 

• Adjust remocon. 

4.2.3 Download method   
1) Press Adj. key on the Adj. R/C, 
2) Select EDID D/L menu. 
3) By pressing Enter key, EDID download will begin 
4) If Download is successful, OK is display, but If Download is

failure, NG is displayed. 

5) If Download is failure, Re-try downloads.    

* Caution) When EDID Download, must remove RGB/HDMI

Cable. 

Block1  

# HDMI2-EDID (C/S : 03BC)  
Block0

Block1  

# RGB-EDID (C/S : 1C)  
Block0 

5.1.1. Overview 
5.1.1.1. W/B adj. Objective & How-it-works 
(1) Objective: To reduce each Panel’s W/B deviation 
(2) How-it-works: When R/G/B gain in the OSD is at 192, it

means the panel is at its Full Dynamic Range.  In order to
prevent saturation of Full Dynamic range and data, one of
R/G/B is fixed at 192,  and the other two is lowered to find
the desired value.  

(3) Adj. condition: normal temperature 
1) Surrounding Temperature: 25±5°C 
2) Warm-up time: About 5 Min 
3) Surrounding Humidity: 20% ~ 80% 

5.1.2. Equipment 
(1) Color Analyzer: CA-210 (NCG: CH 9 / WCG: CH12 / LED:

CH14) 

(2) Adj. Computer (During auto adj., RS-232C protocol is

needed) 

(3) Adjust Remocon 
(4) Video Signal Generator MSPG-925F 720p/204-Gray

(Model: 217, Pattern: 49)  

• Color Analyzer Matrix should be calibrated using CS-1000