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LG 32LN575S Service Manual

LG 32LN575S
128 pages
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Printed in KoreaP/NO : MFL67727117 (1303-REV00)
CHASSIS : LD33B
MODEL : 32LN57** 32LN57**-Z*
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

Other manuals for LG 32LN575S

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LG 32LN575S Specifications

General IconGeneral
Display diagonal32 \
Native aspect ratio16:9
Native refresh rate50 Hz
LED backlighting typeDirect-LED
Supported video modes1080p
Screen format adjustments4:3, 14:9, Zoom
Supported graphics resolutions1920 x 1080 (HD 1080)
Motion interpolation technologyMCI (Motion Clarity Index) 100
3DNo
Annual energy consumption60 kWh
Analog signal format system-
Digital signal format systemDVB-C, DVB-S2, DVB-T
Audio systemVirtual Surround Plus
RMS rated power20 W
Number of speakers2
HDMI version1.4
HDMI ports quantity3
DVI-D ports quantity0
USB 2.0 ports quantityUSB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
Component video (YPbPr/YCbCr) in1
Consumer Electronics Control (CEC)SimpLink
Smart modesCinema, Game
Lifestyle appsSkype
Audio formats supportedAAC, AC3, MP3, PCM
Image formats supportedJPG, JPS, MPO
Video formats supportedDIVX
Product colorBlack
Power consumption (standby)- W
Cables includedAC
Weight and Dimensions IconWeight and Dimensions
Depth (with stand)207 mm
Height (with stand)497 mm
Weight (with stand)7000 g
Depth (without stand)79 mm
Width (without stand)738 mm
Height (without stand)437 mm
Weight (without stand)6700 g

Summary

Safety Precautions

Servicing Precautions

General Servicing Precautions

Guidelines for safe and correct servicing of the TV.

Electrostatically Sensitive (ES) Devices

Precautions for handling sensitive electronic components to prevent static damage.

General Soldering Guidelines

Best practices for soldering to ensure reliable connections and prevent damage.

Adjustment Instruction

Automatic Adjustment

Details on automatic adjustment procedures for TV settings.

Model name & Serial number Download

Instructions for downloading and verifying model and serial numbers.

Manual Adjustment

White Balance Adjustment

Procedure for adjusting white balance to ensure accurate color reproduction.

Adj. Command (Protocol)

Details the RS-232C commands used for auto-adjustment.

Block Diagram

Power Block Diagram

Overview of the power supply distribution for different TV components.

Panel Interface Block Diagram

Illustrates the EPI interface for panel communication.

PMIC & Level Shift Bloc Diagram

Shows the block diagram for Power Management IC and Level Shifter.

USB / WIFI / M-REMOTE / UART

Diagram showing connections for USB, Wi-Fi, remote control, and UART.

Main PCB for Broadband

Interconnection - 1

PCBs

Identifies the main PCBs and their locations in the TV assembly.

Introductions of 13Y RF ass’y + Magic Remote control

System

Describes the system architecture for remote control communication.

MR13 Block Diagram

Illustrates the block diagram of the MR13 Bluetooth remote control.

RF Pairing / Un-pairing Method

Details the procedures for pairing and unpairing the RF remote control with the TV.

Widevine & HDCP 2.0 & NETFLX

Standard Repair Process

A. Video error - No video/Normal audio

Troubleshooting steps for no video or normal audio issues.

A. Video error - No video/ No audio

Troubleshooting steps for no video or no audio conditions.

B. Power error - No power

Troubleshooting steps for the TV not turning on or showing no power.

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

Diagnoses and resolves issues related to unexpected power off or auto power cycling.

C. Audio error - No audio/Normal video

Troubleshooting guide for no audio or normal video symptoms.

B. Power error

Check power input voltage and ST-BY 3.5V

Procedure to measure power board input voltages and ST-BY status.

C. Audio error

Voltage and speaker checking method when there is no audio

Steps to check audio power supply voltages and speaker functionality.

D. VCOM Adjustment

Sequence of the Vcom adjustment

Step-by-step guide for adjusting the VCOM value for optimal display performance.

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