Manual Adjustment; White Balance Adjustment - LG 32LF595Z Service Manual

4. Manual Adjustment

* ADC adjustment is not needed because of OTP(Auto ADC
adjustment)
4.1. EDID DATA
4.1.1. 2D EDID
▪ Reference
- HDMI1 ~ HDMI2
- In the data of EDID, bellows may be different by S/W or
Input mode.
ⓐ Product ID
HEX EDID Table
0001
0001
ⓑ Serial No: Controlled on production line.
ⓒ Month, Year: Controlled on production line:
ex) Monthly : '01' → '01'
Year : '2015' → '19'
ⓓ Model Name(Hex): LGTV
Chassis
LB50H 00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20
ⓔ Checksum(LG TV): Changeable by total EDID data.
ⓔ1
HDMI1 74
HDMI2 74
Copyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
DDC Function
0100 Analog
0100 Digital
MODEL NAME(HEX)
ⓔ2
8bit
E2
D2

4.2. White Balance Adjustment

4.2.1. Overview
▪ 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) Adjustment condition : normal temperature
1) Surrounding Temperature : 25 °C ± 5 °C
2) Warm-up time: About 5 Min
3) Surrounding Humidity : 20 % ~ 80 %
4) Before White balance adjustment, Keep power on
status, don't power off
4.2.2. 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 10 cm and perpendicular of the module surface
(80°~ 100°)
(3) Aging time
1) After Aging Start, Keep the Power ON status during 5
Minutes.
2) In case of LCD, Back-light on should be checked using
no signal or Full-white pattern.
4.2.3. Equipment
(1) Color Analyzer: CA-210 (NCG: CH 9 / WCG: CH12 / LED:
CH14)
(2) Adjustment Computer (During auto adj., RS-232C protocol
is needed)
(3) Adjustment Remote control
(4) Video Signal Generator MSPG-925F 720p/204-Gray
(Model: 217, Pattern: 49)
▪ Color Analyzer Matrix should be calibrated using CS-1000.
4.2.4. Equipment connection MAP
Probe
- 11 -
Color Analyzer
RS-232C
Computer
USB to RS-232C
RS-232C
* Pattern Generator
Signal Source
* If TV internal pattern is used, not needed
LGE Internal Use Only