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Sharp LC-26AF3 M/H/X

Sharp LC-26AF3 M/H/X
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LC-26AF3 M/H/X
LC-32AF3 M/H/X
LC-37AF3 M/H/X
» IMPORTANT SERVICE SAFETY PRECAUTION ......................................................................................2
» SPECIFICATIONS ......................................................................................................................................4
» OPERATION MANUAL ...............................................................................................................................5
» DIMENSIONS ...........................................................................................................................................10
» REMOVING OF MAJOR PARTS ..............................................................................................................12
» ADJUSTMENT PROCEDURE.................................................................................................................. 20
» TROUBLE SHOOTING TABLE ................................................................................................................35
» MAJOR IC INFOMATIONS .......................................................................................................................49
» OVERALL WIRING DIAGRAM .................................................................................................................52
» BLOCK DIAGRAM ....................................................................................................................................58
» PRINTED WIRING BOARD ASSEMBLIES ..............................................................................................68
» PARTS LIST ..............................................................................................................................................92
» PACKING OF THE SET ......................................................................................................................... 131
» SCHEMATIC DIAGRAM ........................................................................................................................ 132
SERVICE MANUAL
LCD COLOUR
TELEVISION
MODELS
LC-26AF3 M/H/X
LC-32AF3 M/H/X
LC-37AF3 M/H/X
In the interests of user-safety (Required by safety regulations in some countries) the set should be restored
to its original condition and only parts identical to those specified should be used.
SHARP CORPORATION
CONTENTS
Page
1st Edition
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Sharp LC-26AF3 M/H/X Specifications

General IconGeneral
BrandSharp
ModelLC-26AF3 M/H/X
CategoryLCD TV
LanguageEnglish

Summary

IMPORTANT SERVICE SAFETY PRECAUTION

WARNING

Safety warnings for continued service, including circuit modification and power disconnection.

BEFORE RETURNING THE RECEIVER (Fire & Shock Hazard)

Safety checks required before returning the receiver to the user, focusing on fire and shock hazards.

SAFETY NOTICE

Notes on special safety-related characteristics of electrical and mechanical parts.

Precautions for using lead-free solder

Employing lead-free solder

Information on the use of lead-free solder, indicated by the LF symbol.

Using lead-free wire solder

Guidance on selecting and using lead-free wire solder for repairs.

Soldering

Precautions and best practices for soldering with lead-free solder.

Specifications

Display Specifications

Key display parameters including size, resolution, brightness, and viewing angles.

Tuner and Audio Specifications

Details on TV reception, audio output, and speaker configuration.

Power and Connectivity Specifications

Information on power, weight, operating conditions, and input/output terminals.

Operation Manual

Front and Rear Panel Overview

Overview of the TV's front and rear panels, including controls and connections.

Indicators and Reset Functions

Details on indicators, sensors, and reset operations for the TV.

Remote Control Unit

Function Descriptions

Detailed explanations of the functions of each remote control button.

TELETEXT Operations

Specific functions related to TELETEXT mode on the remote control.

Using External Equipment

Connecting External Devices

Guides for connecting VCRs, DVD players, and other audiovisual equipment.

Displaying External Source Images

Instructions on selecting input sources and signal types for external equipment.

Connecting External Equipment

Connecting an HDTV Tuner

Instructions for connecting an HDTV tuner to the TV.

Connecting Game Consoles and Camcorders

Guidance on connecting game consoles and camcorders.

Troubleshooting and Appendix

Troubleshooting Guide

Common problems and their possible solutions for operating the TV.

Environmental Operation Cautions

Precautions for using the TV in high and low temperature environments.

Menu Item Overview

A list of menu items available for TV operation and adjustment.

Dimensions and Physical Specifications

LC-26 AF3 HMX Dimensions

Physical dimensions and measurements for the LC-26AF3 H/M/X model.

LC-3237 AF3 HMX Dimensions

Physical dimensions and measurements for the LC-32/37AF3 H/M/X models.

REMOVING OF MAJOR PARTS (LC-26 AF3 HMX)

Step-by-step Part Removal Procedures

Detailed steps for disassembling major components like covers, stand, and internal units.

REMOVING OF LCD PANEL UNIT (LC-26 AF3 HMX)

LCD Panel and Lamp Removal

Procedures for removing the LCD panel, diffusion sheets, lamp holders, and lamps.

REMOVING OF MAJOR PARTS (LC-3237 AF3 MHX)

Step-by-step Part Removal Procedures

Detailed steps for disassembling major components for specific models.

REMOVING OF LCD PANEL UNIT (LC-3237 AF3 MHX)

LCD Panel and Lamp Removal

Procedures for removing the LCD panel, diffusion sheets, lamp holders, and lamps for specific models.

ADJUSTMENT PROCEDURE

PWBIC Replacement Notes

Notes on preparing new units with updated software after PWB or IC replacement.

Program Rewriting Procedure

Step-by-step guide for rewriting control software into the unit via an external computer.

ADJUSTMENT PROCEDURE

Connecting the Jig PWB and Unit

Instructions for connecting the jig PWB to the main PWB for software rewriting.

Rewriting Procedure Steps

Detailed steps for executing the program rewriting process, including software and hardware actions.

ADJUSTMENT PROCEDURE

Entering and Exiting Adjustment Mode

Procedures for entering and exiting the TV's adjustment process mode.

ADJUSTMENT PROCEDURE

Remote Controller and Display in Adjustment Mode

Details on remote controller key functions and display elements during adjustment.

Adjustment Process Mode Menu

Menu Item Categories

Categorization of adjustment items such as Initialization, PAL/SECAM, HDTV, and HDMI.

Adjustment Process Mode Menu

Special Features and Diagnostics

Description of special features like standby cause codes, EEP save, and EEP recover.

LCD Panel and Signal Adjustment

COM BIAS Adjustment

Procedure for adjusting the COM BIAS for the LCD panel.

Video Signal Adjustment

Steps for video signal adjustment, including signal checks and RF AGC.

LCD Panel and Signal Adjustment

PAL, SECAM, and N358 Signal Adjustments

Procedures for adjusting PAL, SECAM, and N358 signal parameters.

LCD Panel and Signal Adjustment

ADC and HDMI Signal Adjustments

Procedures for ADC adjustments for component signals and HDMI signal adjustment.

White Balance Adjustment

White Balance Adjustment Procedure

Detailed steps for performing white balance adjustment using a luminance meter and specified reference values.

White Balance Adjustment

Outline of White Balance Adjustment

Explanation of the multiple point adjustment method for reducing color differences among gradations.

Initialization to Factory Settings

Factory Settings Initialization Procedure

Steps to initialize the TV to factory settings, including cautions about data loss.

Display Adjustment Procedure

Entering and Exiting Display Process Mode

Instructions for entering and exiting the display adjustment mode.

Key Functions in Display Process Mode

Table detailing remote controller key operations within the display adjustment mode.

Display Adjustment Procedure

List of Display Adjustment Modes

A list detailing the various display adjustment modes available.

Display Adjustment Procedure

Lamp Error Detection and Measures

Explanation of the lamp error detection feature and steps for checking and resetting the error count.

Troubleshooting Table: No Power

Troubleshooting Table: No Sound

Troubleshooting Table: External Audio Issues

Troubleshooting Table: External Input Issues

Troubleshooting Table: Display and Sound Issues

Troubleshooting Table: EXT2 EXT3 Input Issues

Troubleshooting Table: EXT1 RGBYC Input Issues

Troubleshooting Table: EXT2 Input and No Picture Issues

Troubleshooting Table: EXT3 Input and No Picture Issues

Troubleshooting Table: EXT4 Input and No Picture Issues

Troubleshooting Table: LED Flashing and Display Issues

Troubleshooting Table: Backlight Issues

Troubleshooting Table: Power and Signal Issues

Troubleshooting Table: Picture Noise and LCD Issues

Major IC Information

Video Processing and Control ICs

Information on key ICs for video processing, switching, and control.

LCD Panel and Interface ICs

Details on ICs related to LCD panel timing, memory, and LVDS communication.

Audio and Other System ICs

Information on ICs for audio decoding, delay, and voltage generation.

Major IC Information

Audio Amplifier and Interface ICs

Information on audio amplifier ICs and digital interface receivers for HDMI/DVI.

Overall Wiring Diagrams

LC-26 AF3 MHX Overall Wiring Diagram

A wiring diagram illustrating the connections between major units for the LC-26AF3 M/H/X model.

LC-32 AF3 MHX Overall Wiring Diagram

A wiring diagram showing connections between major units for the LC-32AF3 M/H/X model.

LC-37 AF3 MHX Overall Wiring Diagram

A wiring diagram illustrating unit connections for the LC-37AF3 M/H/X model.

Block Diagrams

System Block Diagram (15)

A high-level system block diagram illustrating the overall TV architecture.

Main Block Diagram (25)

A detailed block diagram of the main unit's components and their interconnections.

AV Block Diagram (35)

A block diagram detailing the AV unit's circuitry and signal flow.

Power Block Diagram (45)

A block diagram illustrating the power supply unit's components and functions.

Inverter Block Diagram (55)

A block diagram showing the inverter unit's circuitry for backlight control.

Printed Wiring Board Assemblies

Main Unit PWBs (Side-A & Side-B)

Diagrams showing component layouts for both sides of the Main Unit's printed wiring boards.

AV Unit PWBs (Side-A & Side-B)

Diagrams showing component layouts for both sides of the AV Unit's printed wiring boards.

KEY Unit PWBs (Side-A & Side-B)

Diagrams showing component layouts for both sides of the Key Unit's printed wiring boards.

RC LED Unit PWBs (Side-A & Side-B)

Diagrams showing component layouts for both sides of the R/C LED Unit's printed wiring boards.

Power Unit PWBs (Side-A & Side-B)

Diagrams showing component layouts for both sides of the Power Unit's printed wiring boards.

Inverter Unit PWBs (by Model & Side)

Diagrams showing component layouts for Inverter Unit PWBs across different models and sides.

Parts List

Parts Replacement Information

Details on replacement parts, safety characteristics, and how to order them.

Component Parts Lists

Lists of components including PWBs, LCD panels, lamps, and integrated circuits with part numbers.

Parts List

Main Unit Components

Detailed list of transistors, diodes, packaged circuits, coils, filters, and capacitors for the Main Unit.

Parts List

Capacitors and Resistors

Lists of capacitors and resistors with their part numbers, descriptions, and codes.

Parts List

Resistors (Continued)

Continuation of the resistor list with part numbers and specifications.

Parts List

Resistors (Continued)

Further listing of resistors with their part numbers and specifications.

Parts List

Resistors (Continued)

Additional resistor listings including part numbers and specifications.

Parts List

Miscellaneous Parts (Power Unit)

List of miscellaneous parts such as connectors, sockets, and heat sinks.

Parts List

AV Unit Components

Lists of integrated circuits, transistors, and diodes for the AV Unit.

Parts List

AV Unit Capacitors

List of capacitors for the AV Unit with specifications.

Parts List

AV Unit Capacitors (Continued)

Additional capacitor listings for the AV Unit with detailed specifications.

Parts List

AV Unit Capacitors (Continued)

Further listing of AV Unit capacitors with detailed specifications.

Parts List

AV Unit Resistors

List of resistors for the AV Unit with their part numbers and specifications.

Parts List

AV Unit Resistors (Continued)

Continuation of the AV Unit resistor list with part numbers and specifications.

Parts List

Key Unit Components

Lists of integrated circuits, transistors, and diodes for the KEY Unit.

Parts List

Inverter Unit (LC-26 AF3 M) Components

Lists of ICs, transistors, and diodes for the LC-26AF3M Inverter Unit.

Parts List

Inverter Unit Components (LC-26 AF3 M)

Lists of transistors, capacitors, and resistors for the LC-26AF3M Inverter Unit.

Parts List

Inverter Unit Resistors (LC-26 AF3 M)

Continuation of the resistor list for the LC-26AF3M Inverter Unit.

Parts List

Inverter Unit Capacitors and Misc. Parts (LC-32 AF3 M)

Lists of capacitors and miscellaneous parts for the LC-32AF3M Inverter Unit.

Parts List

Main Unit Integrated Circuits

List of integrated circuits used in the Main Unit with part numbers and codes.

Parts List

Main Unit Transistors, Diodes, and Capacitors

Lists of transistors, diodes, and capacitors for the Main Unit with detailed specifications.

Parts List

AV Unit Capacitors (LC-32 AF3 MHX)

List of capacitors for LC-32AF3M/H/X AV Unit with specifications.

Parts List

AV Unit Resistors (LC-32 AF3 MHX)

List of resistors for LC-32AF3M/H/X AV Unit with specifications.

Parts List

AV Unit Resistors (LC-37 AF3 MHX)

List of resistors for LC-37AF3M/H/X AV Unit with specifications.

Parts List

AV Unit Resistors (LC-37 AF3 MHX) (Continued)

Additional resistor listings for LC-37AF3M/H/X AV Unit.

Parts List

Power Unit Resistors

List of resistors for the Power Unit with their specifications.

Parts List

Miscellaneous Parts (Power Unit)

List of miscellaneous parts such as connectors, sockets, and heat sinks.

Parts List

Power Unit Capacitors

List of capacitors used in the Power Unit with their specifications.

Parts List

Power Unit Capacitors (Continued)

Additional capacitor listings for the Power Unit with detailed specifications.

Parts List

Power Unit Capacitors (Continued)

Further listing of Power Unit capacitors with specifications.

Cabinet and Mechanical Parts (LC-26 AF3 MHX)

LC-26 AF3 MHX Parts List

Detailed list of cabinet and mechanical parts for the LC-26AF3M/H/X model.

Cabinet and Mechanical Parts (LC-26 AF3 MHX)

Exploded View Diagram

An exploded view diagram illustrating the assembly of cabinet and mechanical parts.

Cabinet and Mechanical Parts (LC-32 AF3 MHX)

LC-32 AF3 MHX Parts List

List of cabinet and mechanical parts for the LC-32AF3M/H/X model.

Cabinet and Mechanical Parts (LC-32 AF3 MHX)

Exploded View Diagram

An exploded view diagram illustrating the assembly of cabinet and mechanical parts for the LC-32AF3M/H/X model.

Cabinet and Mechanical Parts (LC-37 AF3 MHX)

LC-37 AF3 MHX Parts List

List of cabinet and mechanical parts for the LC-37AF3M/H/X model.

Cabinet and Mechanical Parts (LC-37 AF3 MHX)

Exploded View Diagram

An exploded view diagram illustrating the assembly of cabinet and mechanical parts for the LC-37AF3M/H/X model.

Supplied Accessories and Service Jigs

Supplied Accessories List

List of accessories supplied with the TV for different models.

Service Jigs Information

Details on jigs and tools required for service and software upgrading.

Packing of the Set

Packing Diagram and Steps

Diagram illustrating the steps and components for packing the TV set.

Schematic Diagrams

Schematic Diagram Conventions

Explanation of voltage measurement conditions, resistor, and capacitor notations used in schematic diagrams.

Core Circuit Schematics

Detailed schematics for Main, AV, and Key circuits.

Support Circuit Schematics

Detailed schematics for R/C, LED, Inverter, and Power circuits.

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