White Balance Adjustment - LG 39LY340H Service Manual

4.2. EDID Download
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
(1) Since EDID data is embedded, EDID download JIG, HDMI
cable is not need.
(2) Adjust by using remote controller
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 HDMI
Cable.
4.2.3.1. Models for EDID Data
not Deep Color, DTS + AC3 + PCM
DTS 2D
Ver 0.10
(1)8Bit_ (2)8Bit_
HD FHD
RGB 88 -
HDMI1 6F8D E78D
HDMI2 6F7D E77D
not Deep Color, DTS + AC3 + PCM
PCM
Ver 0.10
(7_a)8Bit_ (7_b)8Bit_
HD HD
RGB 88 -
HDMI1 6F08 6F08
HDMI2 6FF8 -
4.3. Tool Option Input
- Input Model Tool Option according to BOM
Copyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
3D
(3)10Bit_ (4)8Bit_ (5)8Bit_ (6)10Bit_
FHD HD FHD
- - -
E746 6F60 E760
E736 6F50 E750
2D
(8_a)8Bit_ (8_b)8Bit_ (9)10Bit_
FHD FHD
- -
E708 E708
E7F8 -
5. Final Assembly Adjustment

5.1. White Balance Adjustment

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
- Surrounding Temperature: 25±5 ºC
- Warm-up time: About 5 Min
- Surrounding Humidity: 20% ~ 80%
- Before White balance adjustment, Keep power on status,
don't power off
5.1.1.2. Adj. condition and cautionary items
(1) Lighting condition in surrounding area surrounding lighting
should be lower 10 lux. Try to isolate adj. area into dark
surrounding.
(2) Probe location: Color Analyzer (CA-210) probe should be
within 10cm and perpendicular of the module surface
(80°~ 100°)
(3) Aging time
- After Aging Start, Keep the Power ON status during 5
FHD
Minutes.
-
- In case of LCD, Back-light on should be checked using no
signal or Full-white pattern.
E719
E709
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)
FHD (3) Adjust Remocon
(4) Video Signal Generator MSPG-925F 720p/204-Gray
-
(Model:217, Pattern:49)
E7C1
→ Only when internal pattern is not available
E7B1
※ Color Analyzer Matrix should be calibrated using
CS-1000
- 10 -
LGE Internal Use Only