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LG M227WD Service Manual

LG M227WD
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Copyright LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
C
2008
- 20 -
Check the output data of TU500
Pin 24~34
Can you see the normal signal?
NO
Could you measure voltage of
TU500 & IIC lines?
Are they all normal?
NO
You should check power line
& IIC lines.
YES
You should replace TUNER.
YES
Check the output of Main IC(IC100).
Especially you should check
The H,V sync and clock.
Can you see the normal waveform?
YES
NO
After checking the Power of Main
IC(IC100) you should decide to replace
Main IC or not.
This board has big problem because
Main IC(IC100) have some troubles.
After checking thoroughly all path once
again, You should decide to replace
Main Board or not.
DTV doesn’t display

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LG M227WD Specifications

General IconGeneral
Pixel pitch0.24825 x 0.24825 mm
Aspect ratio16:9
Display diagonal21.5 \
Supported video modes1080i, 1080p, 480i, 480p, 576i
Viewing angle, vertical160 °
Contrast ratio (typical)8000:1
Viewing angle, horizontal170 °
Digital vertical frequency56 - 75 Hz
Digital horizontal frequency30 - 83 kHz
Display brightness (typical)300 cd/m²
Special featuresPicture 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 featuresKey lock
Power requirementsAC 100-240V
TV tuner integratedYes
Component video (YPbPr/YCbCr) in3
RMS rated power6 W
CertificationTUV-GS, EPA, FCC-B, CE
Product colorBlack
Market positioning-
Power consumption (typical)55 W
Power consumption (PowerSave)1 W
Tilt angle range-5 - 15 °
Panel mounting interface100 x 100 mm
Weight and Dimensions IconWeight 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

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