Read LG 72LEX9S-CA (CHASSIS:LC03N) Service Manual online
model:255 , pattern:65 )
3) Change input mode as RGB and picture mode as
“Standard”
4) Press the In-start Key on the ADJ remote after at
least1 min of signal reception. Then, select 7.
1. COMP 1080p on the menu. Press enter key.
The adjustment will start automatically.
5) If ADC calibration is successful, “ADC RGB Success”
is displayed.
If ADC calibration is failure, “ADC RGB Fail” is
displayed.
6) If ADC calibration is failure, after recheck ADC
Error message
5.2 White Balance Adjustment
5.2.1 Overview
1) W/B adj. Objective & How-it-works
1) W/B adj. Objective & How-it-works
- Objective: To reduce each Panel’s W/B deviation
- How-it-works: When R/G/B gain in the OSD is at
its Full Dynamic Range.
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.
-Adj. condition : normal temperature
▪ Surrounding Temperature: 25±5℃
▪ Warm-up time: About 5 Min
▪ Surrounding Humidity: 20% ~ 80%
5.2.2 Equipment
1) Color Analyzer: CA-210 (
LED Module : CH 14
)
2) Adj. Computer(During auto adj., RS-232C protocol
3) Adjust Remocon
4) Video Signal Generator MSPG-925F 720p/216-
Gray (Model:217, Pattern:78)
→ Only when internal pattern is not available
※
Color Analyzer Matrix should be calibrated using
CS-1000
Bar Pattern
pattern or condition retry calibration
refer to 5)
192, it means the panel is at
In order to
is needed)
External ADC ->
5.2.3 Equipment connection MAP
Ex)
wb 00 00 -> Begin white balance auto-adj.
wb 00 10 -> Gain adj.
ja 00 ff -> Adj. data
jb 00 c0
...
ja 00 ff -> Adj. data
jb 00 c0
...
...
wb 00 1f -> Gain adj. complete
*(wb 00 20(start), wb 00 2f(endc)) -> Off-set adj.
wb 00 ff ->End white balance auto adj.
3) Adj. Map
Adj. item
Command
(lower
Data
Range
(Hex.)
Default
(Decimal)
(Decimal)
CMD1 CMD2 MIN MAX
R Gain j
g
00 C0
172
G Gain j
h
00 C0
172
B
Gain j
i
00
C0
192
R
Cut
64
Cool
G
Cut
64
caseASCII)
- 12 -
5.1.3.2 ADC 1920*1080 RGB
1) Check connected condition of Component & RGB
cable to the equipment
2) Give a
1920*1080 Mode, 100% Horizontal Color
to RGB port.
(MSPG-925 Series
Color Analyzer
Computer
Pattern Generator
※
※If TV internal pattern is used, not
Signal
Source
Probe
RS-
232C
RS-
232C
RS-
232C
5.2.4 Adj. Command (Protocol)
1) Command Format
1) Command Format
START 6E A 50 A LEN A 03 A CMD
A 00 A VAL A CS A STOP
- LEN: Number of Data Byte to be sent
- CMD: Command
- VAL: FOS Data value
- CS: Checksum of sent data
- A: Acknowledge
Ex) [Send: JA_00_DD] / [Ack: A_00_okDDX]
2) RS-232C Command used during auto-adj.
RS-232C
COMMAND
[CMD
ID
DATA]
Explanation
wb
00 00
Begin White Balance adj.
wb
00 10
Gain adj.(internal white pattern)
wb
00 1f
Gain adj. completed
wb
00 20
Offset adj.(internal white pattern)
wb
00 2f
Offset adj. completed
wb
00 ff
End White Balance adj.
(internal pattern disappears )
Details
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