Sharp LC-37D64U

SERVICE MANUAL
Parts marked with " " are important for maintaining the safety of the set. Be sure to replace these parts with specified ones for maintaining the
safety and performance of the set.
This document has been published to be used for
after sales service only.
The contents are subject to change without notice.
SAFETY PRECAUTION
IMPORTANT SERVICE SAFETY
PRECAUTION............................................................ i
PRECAUTIONS A PRENDRE LORS DE LA
REPARATION ........................................................... ii
PRECAUTIONS FOR USING LEAD-FREE
SOLDER ...................................................................iii
PRECAUTIONS IN SERVICING THE HDCP-
KEY ROM................................................................. iv
CHAPTER 1. SPECIFICATIONS
[1] SPECIFICATIONS .................................................1-1
CHAPTER 2. OPERATION MANUAL
[1] OPERATION MANUAL ..........................................2-1
CHAPTER 3. DIMENSIONS
[1] DIMENSIONS (LC-32D64U) ..................................3-1
[2] DIMENSIONS (LC-37D64U) ..................................3-2
CHAPTER 4. REMOVING OF MAJOR PARTS
[1] REMOVING OF MAJOR PARTS (LC-32D64U) .....4-1
[2] REMOVING OF MAJOR PARTS (LC-37D64U) .....4-8
CHAPTER 5. ADJUSTMENT
[1] ADJUSTMENT PROCEDURE ...............................5-1
CHAPTER 6. TROUBLE SHOOTING TABLE
[1] TROUBLE SHOOTING TABLE..............................6-1
CHAPTER 7. MAJOR IC INFORMATIONS
[1] MAJOR IC INFORMATIONS..................................7-1
CHAPTER 8. OVERALL WIRING/BLOCK DIAGRAM
[1] OVERALL WIRING DIAGRAM ..............................8-1
[2] SYSTEM BLOCK DIAGRAM .................................8-2
CHAPTER 9. PRINTED WIRING BOARD ASSEMBLIES
[1] R/C, LED Unit.........................................................9-1
[2] KEY Unit.................................................................9-2
[3] MAIN Unit...............................................................9-3
[4] TERMINAL Unit......................................................9-7
[5] SIDE Unit ...............................................................9-9
CHAPTER 10. SCHEMATIC DIAGRAM
[1] DESCRIPTION OF SCHEMATIC DIAGRAM.......10-1
[2] R/C, LED Unit.......................................................10-2
[3] KEY Unit...............................................................10-3
[4] MAIN Unit.............................................................10-4
[5] TERMINAL Unit..................................................10-18
[6] SIDE Unit ...........................................................10-22
Parts Guide
TopPage
CONTENTS
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.
LCD COLOR TELEVISION
No. SY7B9LC32D64U
LC-32/37D64U
LC-32D64U
LC-37D64U
MODELS

Sharp LC-37D64U Specifications

General

Brand	Sharp
Model	LC-37D64U
Category	TV
Language	English

Summary

SAFETY PRECAUTIONS

Important Service Safety Precautions

Critical safety guidelines for technicians, including circuit modification and power disconnection rules.

Fire and Shock Hazard Prevention

Mandatory safety checks before returning the receiver to prevent fire and electric shock hazards.

CHAPTER 1. SPECIFICATIONS

LC-3237 D64 U Model Specifications

Troubleshooting

Common TV Troubleshooting Issues

Guidance for resolving common problems like no power, no picture, no sound, and remote control errors.

LED Flashing Error Indicators

Chart detailing LED flashing patterns for error notification and corresponding microprocessor pin functions.

CHAPTER 5. ADJUSTMENT

Adjustment Procedures Overview

Overview of adjustment procedures, including software upgrades and microprocessor software updates.

Software Version Upgrade Process

Detailed steps for upgrading main and monitor microprocessor software using USB memory.

White Balance Adjustment

Detailed procedure for white balance adjustment using optical measuring machine and RS-232C.

CHAPTER 8. OVERALL WIRINGBLOCK DIAGRAM

Overall Wiring Diagram

CHAPTER 10. SCHEMATIC DIAGRAM

RC, LED Unit Schematic

Main Unit Schematic (POWER 1)