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LG M227WDP User Manual

LG M227WDP
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LCD MONITOR TV
SERVICE MANUAL
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
CHASSIS : LD93C
MODEL : M227WDP
M227WDP-PZL
M237WDP
M237WDP-PZL
North/Latin America http://aic.lgservice.com
Europe/Africa http://eic.lgservice.com
Asia/Oceania http://biz.lgservice.com
Internal Use Only
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LG M227WDP Specifications

General IconGeneral
3DNo
Aspect ratio16:9
Display diagonal22 \
Viewing angle, vertical160 °
Contrast ratio (dynamic)-
Contrast ratio (typical)1000:1
Display number of colors16.78 million colors
Viewing angle, horizontal170 °
Display brightness (typical)300 cd/m²
Supported graphics resolutions1920 x 1080 (HD 1080)
HDCPYes
USB Type-A downstream ports quantity0
RMS rated power3 W
Product colorBlack
Panel mounting interface- mm
Power consumption (standby)1 W
Power consumption (typical)49 W
Weight and Dimensions IconWeight and Dimensions
Depth (without stand)193.2 mm
Width (without stand)519.8 mm
Height (without stand)400 mm
Weight (without stand)4500 g

Summary

PRECAUTION

SAFETY-RELATED COMPONENTS

Use manufacturer-specified parts for critical safety components to prevent hazards.

LCD MODULE HANDLING

Handle LCD modules carefully to prevent damage and ensure safety during service.

LEAKAGE CURRENT HOT CHECK CIRCUIT

Details the circuit for measuring leakage current using an AC voltmeter.

BATTERY REPLACEMENT CAUTION

Warns about explosion risk if batteries are replaced with incorrect types.

SERVICING PRECAUTIONS

GENERAL SERVICING GUIDELINES

Standard safety guidelines for servicing, including power disconnection and ESD protection.

ELECTROSTATICALLY SENSITIVE (ES) DEVICES

Procedures to prevent static discharge damage to sensitive electronic components.

SOLDERING TECHNIQUES

Best practices for soldering, including tool usage and temperature control.

PRODUCT SPECIFICATIONS

APPLICATION RANGE

Defines the scope of specifications for 22"/23" LCD Monitor TV with LD93C chassis.

TEST CONDITIONS

Details test parameters like temperature, humidity, and input voltage.

TEST METHODS

Outlines the procedures for product testing and specification verification.

LCD MODULE DETAILS

Provides key technical details of the LCD module used in the monitor.

GENERAL TV SPECIFICATIONS

5.1 TV SYSTEM FEATURES

Lists general specifications for TV functions, inputs, and outputs.

CHROMA AND BRIGHTNESS

6.1 M227WDP AUO MODULE

Presents chroma and brightness data for the M227WDP AUO LCD module.

6.2 M227WDP LGD MODULE

Presents chroma and brightness data for the M227WDP LGD LCD module.

SET OPTICAL FEATURES

7.1 PC MODE SETTINGS

Optical specifications for PC input mode, including luminance and contrast.

7.2 AV MODE SETTINGS

Optical specifications for AV input mode, including luminance and contrast.

7.3 DFC FEATURE

Details the Dynamic Contrast Ratio (DFC) feature and its operating conditions.

8. COMPONENT VIDEO INPUT

Lists resolutions and frequencies supported for component video input.

RGB INPUT SPECIFICATIONS

10. RGB EDID DATA

Displays Extended Display Identification Data for RGB input.

DVI INPUT SPECIFICATIONS

12. DVI EDID DATA

Displays Extended Display Identification Data for DVI input.

HDMI INPUT SPECIFICATIONS

14. HDMI1/2 EDID DATA

Displays Extended Display Identification Data for HDMI inputs.

MECHANICAL SPECIFICATIONS

15.1 M227WDP-PZL DIMENSIONS

Provides mechanical dimensions and weight for the M227WDP-PZL model.

15.2 M237WDP-PZL DIMENSIONS

Provides mechanical dimensions and weight for the M237WDP-PZL model.

ADJUSTMENT INSTRUCTIONS

1. APPLICATION SCOPE

Specifies the scope and applicability of the adjustment procedures.

2. ADJUSTMENT DESIGNATION

Outlines the order, conditions, and equipment for product adjustments.

3. MAIN PCB CHECK PROCESS

Details steps for checking the main PCB, including APC and firmware download.

TROUBLESHOOTING GUIDE

1. POWER-UP BOOT FAILURE

A flowchart to diagnose and resolve issues preventing the unit from booting up.

BLOCK DIAGRAM

EXPLODED VIEW

IMPORTANT SAFETY NOTICE

Critical safety information regarding special components and modifications.

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