LG M227WD Service Manual

3.1.2 COMPONENT input ADC
3.1.2.1 Component Gain/Offset Adjustment
- Convert to Component in Input-source
- Signal equipment displays
Impress Resolution 1080i
Model: 223 in Pattern Generator(1080i Mode)
Pattern : 65 in Pattern Generator( MSPG-925 SERIES)
Adjustment pattern (COMPONENT )
- Adjust by commanding AUTO_COLOR_ADJUST.
3.1.2.2 Confirmation
- We confirm whether "0xB3 (480i)/0xBC (1080i)" address of
EEPROM "0xA2" is "0xAA" or not.
- If "0xB3 (480i)/0xBC(1080i)" address of EEPROM "0xA2"
isn’t "0xAA", we adjust once more
- We can confirm the ADC values from "0xAD~0XB2
(480i)/0XB6~BB (1080i)" addresses in a page "0xA2"
*Manual ADC process using Service Remocon. After enter
Service Mode by pushing "ADJ" key,
execute "ADC Adjust" by pushing " " key at "ADC
CALIBRATION :COMPONENT".
Impress Resolution 1080i
3.2 Function Check
3.2.1 Check display and sound
-Check Input and Signal items. (cf. work instructions)
1. TV
2. AV (SCART1/SCART2/CVBS/S-Video)
3. COMPONENT (1080i)
4. RGB (PC : 1920x1080 @ 60Hz)
5. DVI (PC : 1920x1080 @ 60Hz)
6. HDMI
6. PC Audio In
* Display and Sound check is executed by Remote controller.
4. Total Assembly line process
4.1 Adjustment Preparation
- W/B Equipment condition
CA210: CH 9, Test signal: Inner pattern (85IRE)
- Above 5 minutes H/run in the inner pattern. ("power on" key
of adjust remote control)
- 15 Pin D-Sub Jack is connected to the AUTO W/B
EQUIPMENT.
- Adjust Process will start by execute I2C Command (Inner
pattern (0xF3, 0xFF).
- Adjust Process will finish by execute I2C Command (Inner
pattern (Inner pattern (0xF3,0x00)).
** Caution **
Color Temperature: COOL, Medium, Warm
One of R Gain/G Gain/ B Gain should be kept on 0xC0, and
adjust other two lower than C0.
(when R/G/B Gain are all C0, it is the FULL Dynamic Range of
Module)
* W/B condition
- Surrounding Temperature : 20 % ~ 80 %
- Surrounding Temperature : 25±5 °C
- warm-up Time : Under 5 Min.
*Manual W/B process using adjusts Remote control.
- After enter Service Mode by pushing "ADJ" key,
- Enter White Pattern off of service mode, and change off -> on.
- Enter "W/B ADJUST" by pushing " " key at "3. W/B ADJUST".
- 17 -
Copyright LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
C
2008
Cool
9,300k
K
X=0.285 (±0.003)
Y=0.293 (±0.003)
Medium
8,000k
K
X=0.295 (±0.003)
Y=0.305 (±0.003)
Color
Temperature
Warm
6,500k
K
X=0.313 (±0.003)
Y=0.329 (±0.003)
Cool
Min : 130 Typ : 220
Medium
Min : 130 Typ : 220
Luminance
(cd/
Warm
Min : 130 Typ : 220
<Test Signal>
Inner pattern
(216gray,85IRE)
m )
2
°
°
°
Module
Luminance
Min Typ
Remark
AUO 240 300 1920*1080@60hz

LG M227WD Specifications

General

Pixel pitch	0.24825 x 0.24825 mm
Aspect ratio	16:9
Display diagonal	21.5 \
Supported video modes	1080i, 1080p, 480i, 480p, 576i
Viewing angle, vertical	160 °
Contrast ratio (typical)	8000:1
Viewing angle, horizontal	170 °
Digital vertical frequency	56 - 75 Hz
Digital horizontal frequency	30 - 83 kHz
Display brightness (typical)	300 cd/m²
Special features	Picture Mode: Vivid, Standard, Cinema, Sport, Game ARC-PC: 16:9, 4:3 ARC-Video: DTV/ATV/AV1/AV2 - 16:9, Original, 4:3, 14:9, Zoom1, Zoom2 COMPONENT/HDMI - 16:9, Just Scan(720P higher), 4:3, 14:9, Zoom1, Zoom2 Sound: SRS, AVL, Equalizer, Dolby Surround Auto/Manual Clock, On/Off Time, Sleep Timer, Auto Off/Auto Sleep
Security features	Key lock
Power requirements	AC 100-240V
TV tuner integrated	Yes
Component video (YPbPr/YCbCr) in	3
RMS rated power	6 W
Certification	TUV-GS, EPA, FCC-B, CE
Product color	Black
Market positioning	-
Power consumption (typical)	55 W
Power consumption (PowerSave)	1 W
Tilt angle range	-5 - 15 °
Panel mounting interface	100 x 100 mm

Weight and Dimensions

Depth (with stand)	193.2 mm
Width (with stand)	519.8 mm
Height (with stand)	400.5 mm
Weight (with stand)	4660 g
Depth (without stand)	75.3 mm
Height (without stand)	349.5 mm
Weight (without stand)	4500 g