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LG 47LB5610 User Manual

LG 47LB5610
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Printed in KoreaP/NO : MFL67987514 (1404-REV00)
CHASSIS : LC43B
MODEL: 47LB5610 47LB5610-CD
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
LED 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
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LG 47LB5610 Specifications

General IconGeneral
Screen shapeFlat
Response time- ms
Display diagonal47 \
Display brightness- cd/m²
LED backlighting type-
Supported video modes1080p
Display diagonal (metric)100 cm
Screen format adjustments16:9
Supported graphics resolutions1920 x 1080 (HD 1080)
Motion interpolation technologyMCI (Motion Clarity Index)
3DNo
Annual energy consumption93 kWh
Tuner typeAnalog & digital
Digital signal format systemDVB-C, DVB-T
Audio systemVirtual Surround
Audio decodersDolby Digital
RMS rated power20 W
Number of speakers2
HDMI version1.4
DVI-D ports quantity0
USB 2.0 ports quantity1
Consumer Electronics Control (CEC)SimpLink
Number of OSD languages34
Video formats supportedDIVX HD
Product colorTitanium
Panel mounting interface400 x 400 mm
Power consumption (standby)0.3 W
Power consumption (typical)64 W
Package weight16400 g
Cables includedAC
Sustainability certificatesRoHS
Weight and Dimensions IconWeight and Dimensions
Depth (with stand)255 mm
Height (with stand)676 mm
Weight (with stand)12700 g
Depth (without stand)55.8 mm
Width (without stand)1073 mm
Height (without stand)629 mm
Weight (without stand)12300 g

Summary

LED TV SERVICE MANUAL

CHASSIS : LC43B

Specifies the chassis type LC43B for the LED TV.

MODEL: 47LB5610 47LB5610-CD

Lists the specific model numbers of the LED TV.

CAUTION

Important safety warning before performing any servicing.

SAFETY PRECAUTIONS

IMPORTANT SAFETY NOTICE

Critical safety information and warnings for service personnel.

General Guidance

General safety practices and recommendations during servicing.

Leakage Current Hot Check

Procedure for checking AC leakage current while the set is powered.

Leakage Current Cold Check

Procedure for checking AC leakage current with the set unpowered.

SERVICING PRECAUTIONS

General Servicing Precautions

Essential guidelines for safe and proper TV servicing.

Electrostatically Sensitive (ES) Devices

Precautions for handling components sensitive to static electricity.

General Soldering Guidelines

Recommended techniques and standards for soldering.

SERVICING PRECAUTIONS

IC Remove/Replacement

Method for removing and replacing Integrated Circuit components.

Discrete Transistor Removal/Replacement

Procedure for removing and replacing discrete transistors.

Power Output Transistor Removal/Replacement

Steps for replacing power output transistors, including heat sinks.

Diode Removal/Replacement

Method for removing and replacing diodes while maintaining polarity.

Fuse and Conventional Resistor Removal/Replacement

Procedure for replacing fuses and conventional resistors.

Circuit Board Foil Repair

Techniques for repairing damaged circuit board foil patterns.

SPECIFICATION

Application range

Defines the scope of the specification for the LED TV.

Requirement for Test

Specifies the environmental and power conditions for testing.

Test method

Outlines the procedures and standards for testing.

Model General Specification

Details general specifications like market, broadcasting, and coverage.

SPECIFICATION

Component Video Input (Y, PB, PR)

Specifications for component video input signals and resolutions.

HDMI Input

Specifications for different HDMI input modes and resolutions.

PC mode

Specifications for PC input signals and resolutions.

ADJUSTMENT INSTRUCTION

Application Range

Defines the scope of application for these adjustment instructions.

Designation

General designation and order for carrying out adjustments.

Main PCB Check Process and Boot File Download

Procedures for Main PCB checks and boot file loading.

ADJUSTMENT INSTRUCTION

ADC Process and Function Check

Steps for ADC calibration, function check, and display/sound verification.

Total Assembly line process

Adjustment Preparation

Preparations required before starting assembly line adjustments.

W/B adj. Objective & How-it-works

Purpose and working principle of White Balance adjustment.

Total Assembly line process

Auto-control interface and directions

Guidelines for using automated control interfaces.

Auto adjustment Map (RS-232C)

Map outlining RS-232C communication for auto adjustment.

Manual W/B process using adjust Remote control

Procedure for manual White Balance adjustment via remote control.

Total Assembly line process

CASE Cool

Specific adjustment procedure for the 'Cool' color temperature mode.

CASE Medium / Warm

Adjustment procedures for 'Medium' and 'Warm' color temperature modes.

DDC EDID Write (RGB 128Byte)

Procedure for writing EDID data via RGB connection.

DDC EDID Write (HDMI 256Byte)

Procedure for writing EDID data via HDMI connection.

EDID DATA

Details on the format and content of EDID data.

Auto Download

Method for performing an automatic EDID data download.

Total Assembly line process

Manual Download

Procedure for manually downloading EDID data.

For HDMI EDID

Specific details and considerations for HDMI EDID data.

EDID Data

Content and structure of the EDID data.

Detail EDID Options

Specific options and parameters within the EDID data.

Outgoing condition Configuration

Final configuration checks before the product leaves the factory.

GND and HI-POT Test

Safety tests including ground continuity and high potential insulation.

Total Assembly line process

Model name & Serial No. download

Process for downloading and verifying model name and serial number.

Signal TABLE

Table detailing signal parameters and settings.

Comand Set

Set of commands used for various operations.

Method & notice

Important methods and notices related to procedures.

BLOCK DIAGRAM

EXPLODED VIEW

L14 POWER BLOCK (POWER DETECT 2)

USB (SIDE)

HDMI (REAR 1 / SIDE 1 MHL)

SPDIF

NAND FLASH MEMORY

Serial Flash for SPI boot

LVDS EU

CI Region

ETHERNET

DVB-S2 LNB Part Allegro

SCART COMPONENT

Headphone

L14 TUNER EU T/CT2/C/S2_CHINA

RS-232C 4PIN & MSTAR DEBUG 4PIN

TP for EU

IR/LED + Digital Eye + Control

MODEL OPTION

AUDIO AMP(TI)

L14 MHL SW AND GATE

L14 Repair Process

A. Video error - No video/Normal audio

Check Back Light

Check if the backlight is illuminated.

Power Board Checks

Verify power board outputs and cable connections.

T-con Board or Module Replacement

Replace T-con board or display module if necessary.

A. Video error - No video/ No audio

Check Power Board Voltages

Verify various voltage outputs from the power board.

Main Board Replacement

Replace the main board if power issues persist.

A. Video error - Picture broken/ Freezing

Check RF Signal Level

Assess RF signal strength and quality using a meter or OSD menu.

Check Software Version

Verify the current software version and check for SVC bulletins.

Tuner Soldering and Main Board Replacement

Inspect tuner soldering and consider Main Board replacement.

A. Video error - Tuning fail, Picture broken/ Freezing

Check RF Signal Cable

Verify RF signal cable integrity and external equipment.

Check Satellite Settings

Verify satellite settings, LNB frequency, and connection.

Check Software Version and Tuner

Check SW version, tuner soldering, and satellite settings.

A. Video error - Color error

Check Color by Input Type

Verify color issues across different input types (External, Component, RGB, HDMI).

Check Test Pattern and Link Cable

Use test patterns and check the LVDS link cable for color issues.

External Device/Cable Check

Inspect external devices and cables for potential color errors.

A. Video error - Vertical/Horizontal bar, residual image, light spot, external device color error

Check Color Conditions

Assess color conditions based on input types and screen state.

Software Upgrade and Test Pattern

Perform software upgrade and use test patterns for diagnosis.

External Device and Link Cable Checks

Verify external devices and LVDS link cable connections.

B. Power error - No power

Check Power LED Status

Verify the status and color of the front panel power LED.

Check Power Cord and DC Voltages

Inspect power cord and measure DC output voltages from the power board.

Check ST-BY 3.5V

Measure the standby 3.5V supply on the main board.

Power Board or Main Board Replacement

Replace the power board or main board if faults persist.

B. Power error - Off when on, off while viewing, power auto on/off

Check Outlet and AC Cord

Inspect the power outlet and the AC power cord.

Check Power Off Mode and CPU Status

Check power off mode settings and CPU abnormality.

Power Board Voltage Check

Verify voltage outputs from the power board.

C. Audio error - No audio/Normal video

Check User Menu Settings

Verify audio settings within the TV's user menu.

Check Audio B+ Voltage and Speaker

Measure audio B+ voltage and check speaker functionality.

Speaker Disconnection Check

Inspect the speaker connection for any disconnections.

C. Audio error - Wrecked audio/discontinuation/noise

Check Input Signal and Speaker/Connector

Verify input signal, speaker, and connector status.

Check Audio B+ Voltage

Measure the audio B+ voltage (24V) for proper operation.

Check External Device

Inspect external devices and their connections for audio issues.

D. Function error - Remote control & Local switch checking

Check Remote Control Operation

Verify remote control operation and battery status.

Check Cable Connection and IR Output

Inspect IR cable connection and output signal.

Check Power Board 3.5V

Measure the 3.5V supply on the power board related to remote function.

D. Function error - External device recognition error

Check Input Signal and Technical Information

Verify input signal and consult technical information for troubleshooting.

Fix Information and External Device Check

Apply fix information and check external devices.

E. Noise - Circuit noise, mechanical noise

Identify Noise Type and Location

Identify the type of noise and its location on the unit.

PSU/LED Driver or Module Replacement

Replace PSU, LED driver, or display module based on noise severity.

F. Exterior defect

Check for Exterior Damage

Inspect for damage to the module, cabinet, remote control, or stand.

Replace Damaged Parts

Replace any parts found to have exterior damage.

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