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LG 24MN42A-PT User Manual

LG 24MN42A-PT
32 pages
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Printed in KoreaP/NO : MFL67580632 (1208-REV00)
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
LED LCD TV
SERVICE MANUAL
North/Latin America http://aic.lgservice.com
Europe/Africa http://eic.lgservice.com
Asia/Oceania http://biz.lgservice.com
Internal Use Only
CHASSIS : LM93B
MODEL : 24MN42A 24MN42A-PMN
M2442A M2442A-PMN
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LG 24MN42A-PT Specifications

General IconGeneral
Screen Size24 inches
Panel TypeIPS
Aspect Ratio16:9
Response Time5 ms
Brightness250 cd/m²
Contrast Ratio1000:1
Built-in SpeakersYes
Resolution1920 x 1080 (Full HD)
Viewing Angle178° (H) / 178° (V)
HDMIYes (1)
USBYes (1)

Summary

Safety Precautions

General Guidance for Safe Servicing

Provides essential guidelines for safe TV servicing, including isolation transformer use and component handling.

Leakage Current Hot Check Procedure

Details the procedure for measuring AC leakage current on exposed metallic parts to ensure safety.

Servicing Precautions

Handling Electrostatic Sensitive Devices

Explains precautions for handling sensitive electronic components to prevent damage from static discharge.

Adjustment Instructions

Troubleshooting Guide

No Power Main PCBA Troubleshooting

Troubleshooting guide to diagnose and resolve 'No Power' issues originating from the main printed circuit board.

No Raster (Black Screen) Troubleshooting

Flowchart for diagnosing and fixing 'No Raster' or black screen issues, indicated by a blue power LED.

Abnormal/No Screen (All Inputs) Troubleshooting

Guide for resolving abnormal or no screen conditions across all input sources on the main PCB.

Abnormal Screen (TV Input) Troubleshooting

Troubleshooting flowchart for screen abnormalities specific to the TV input source on the main PCB.

Abnormal Screen (AV Input) Troubleshooting

Flowchart for diagnosing and fixing screen issues occurring with the AV input signal on the main PCB.

Abnormal Screen (RGB PC Input) Troubleshooting

Guide for resolving screen abnormalities when using the RGB PC input on the main PCB.

Abnormal Screen (HDMI Input) Troubleshooting

Troubleshooting flowchart for screen issues encountered with the HDMI input signal on the main PCB.

No Sound (All Sources) Troubleshooting

Flowchart to diagnose and resolve 'No Sound' issues from all input sources on the main PCB.

Abnormal Sound (TV Input) Troubleshooting

Guide for fixing sound abnormalities specific to the TV input source on the main PCB.

Abnormal Sound (AV Input) Troubleshooting

Troubleshooting flowchart for sound issues occurring with the AV input signal on the main PCB.

Abnormal Sound (HDMI Input) Troubleshooting

Flowchart for diagnosing and resolving sound problems related to the HDMI input on the main PCB.

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