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LG 42PC3RA - User Manual

LG 42PC3RA
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PLASMA TV
SERVICE MANUAL
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
CHASSIS : PP61A
MODEL : 42PC3RA
42PC3RA-ZJ
website:http://biz.LGservice.com
e-mail:http://www.LGEservice.com/techsup.html

Questions and Answers

  • L
    Lori AndrewsAug 11, 2025
    What to do if the output voltage drops on my LG 42PC3RA?
    • L
      Lori GordonAug 11, 2025
      If the output voltage drops on your LG TV, you should check the input connector.
  • D
    Donald PenningtonAug 20, 2025
    What to do if the high tension output doesn't occur on my LG 42PC3RA?
    • B
      Bradley Moss DDSAug 20, 2025
      If the high tension output doesn't occur on your LG TV, check the VSC low voltage output circuit.
  • M
    Monique MorseAug 30, 2025
    What to do if VSC signal RL-ON doesn't come out on my LG TV?
    • M
      Mary BarberAug 30, 2025
      Check the VSC Vs-ON signal.

Summary

SAFETY PRECAUTIONS

General Guidance

General safety advice for servicing the TV, including transformer usage and wire handling.

Leakage Current Checks

Procedures for performing hot and cold leakage current tests for safety.

DESCRIPTION OF CONTROLS

ADJUSTMENT INSTRUCTIONS

TROUBLESHOOTING GUIDE

Power Board Issues

Flowchart for diagnosing issues related to the power board and its voltage outputs.

No Power; Cannot Power On

Diagnostic steps for troubleshooting a TV that does not power on.

Protect Mode Issues

Troubleshooting guide for when the TV enters protect mode, identified by specific symptoms.

No Raster; No Picture

Steps to diagnose and resolve issues where the screen displays no image.

No Sound Issues

Diagnostic procedures for troubleshooting audio output problems.

BLOCK DIAGRAM

LG 42PC3RA Specifications

General IconGeneral
BrandLG
Model42PC3RA
CategoryTV
LanguageEnglish

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