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LG FLATRON 29UM55 User Manual

LG FLATRON 29UM55
29 pages
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Printed in China
COLOR MONITOR
SER
VICE MANUAL
North/Latin America http://aic.lgservice.com
Europe/Africa http://eic.lgservice.com
Asia/Oceania http://biz.lgservice.com
CAUTION
BEFORE SERVICING THE UNIT
,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
CHASSIS NO. : LM14P
MODEL:
Internal Use Only
29UM55
P/NO : MFL67715298(1406-REV00)
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LG FLATRON 29UM55 Specifications

General IconGeneral
Screen Size29 inches
Resolution2560 x 1080
Aspect Ratio21:9
Panel TypeIPS
Refresh Rate60 Hz
Response Time5 ms
Brightness250 cd/m²
Contrast Ratio (Typical)1000:1
Viewing Angle178°/178°
sRGB Coverage99%
HDCP SupportYes
Contrast Ratio (Dynamic)5000000:1
InputsHDMI, DisplayPort
Color Depth8-bit
PortsHDMI, DisplayPort
VESA Mount100 x 100 mm

Summary

Safety and Servicing Precautions

Safety Warnings

Warnings for safety-related components and handling LCD modules with backlight units.

Servicing Precautions

General guidelines for servicing, handling ES devices, and soldering best practices.

Component Replacement and Repair

Component Replacement Procedures

Detailed steps for removing and replacing ICs, transistors, diodes, fuses, and resistors.

Circuit Board Foil Repair

Techniques for repairing damaged copper patterns on circuit boards using jumper wires.

Applying Module Characteristics

EDID Information

Timing Chart

Adjustment Procedures

Adjustment Overview and Appointment

Covers adjustment coverage, sequence, power, input signals, equipment, and general adjustment workflow.

Board and Total Assembly Adjustments

Details adjustment steps for board assembly, including RGB input and mini-key loading, and total assembly line checks.

Color and Luminance Adjustment

Procedures for adjusting color coordinates, contrast, brightness, and using specific test patterns.

Adjustment Patterns

Block Diagram (Main)

Main System Block Diagram

Illustrates the main system components and their interconnections, including the main processor and memory.

Troubleshooting Guide

No Power Issues

Flowchart for diagnosing and resolving no power issues in the monitor.

No Raster/OSD Display

Troubleshooting steps for cases where the raster or OSD is not displayed on the main unit.

DPM Mode Troubles

Diagnostic steps for identifying and resolving issues related to DPM mode.

Exploded View

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