Sharp LC-52SB57U User Manual

SERVICE MANUAL
LC-46SB57U/LC-52SB57U
No. S49Y6LC46SB57
LC-46SB57U
LC-52SB57U
MODELS
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
CHAPTER 1. SPECIFICATIONS
[1] SPECIFICATIONS ......................................... 1-1
CHAPTER 2. OPERATION MANUAL
[1] OPERATION MANUAL .................................. 2-1
CHAPTER 3. DIMENSIONS
[1] DIMENSIONS (LC-46SB57U)........................ 3-1
[2] DIMENSIONS (LC-52SB57U)........................ 3-2
CHAPTER 4. REMOVING OF MAJOR PARTS
[1] REMOVING OF MAJOR PARTS
(LC-46SB57U)................................................ 4-1
[2] REMOVING OF MAJOR PARTS
(LC-52SB57U)................................................ 4-7
CHAPTER 5. ADJUSTMENT
[1] ADJUSTMENT PROCEDURE ....................... 5-1
[2]
PUBLIC MODE SETTING PROCEDURE ....... 5-16
CHAPTER 6. TROUBLESHOOTING TABLE
[1] TROUBLESHOOTING TABLE ......................6-1
CHAPTER 7. OVERALL WIRING/SYSTEM BLOCK
DIAGRAM
[1] OVERALL WIRING DIAGRAM......................7-1
[2] SYSTEM BLOCK DIAGRAM.........................7-2
CHAPTER 8. PRINTED WIRING BOARD
ASSEMBLIES
[1] KEY Unit ........................................................8-1
[2] MAIN Unit ......................................................8-2
[3] R/C, LED Unit ................................................8-6
CHAPTER 9. SCHEMATIC DIAGRAM
[1] DESCRIPTION OF SCHEMATIC
DIAGRAM......................................................9-1
[2] KEY Unit ........................................................9-2
[3] MAIN Unit ......................................................9-3
[4] R/C, LED Unit ..............................................9-19
Parts Guide
TopPage
CONTENTS
LCD COLOR TELEVISION
In the interests of user-safety (Required by safety regulations in some countries) the set should be restored to its orig-
inal condition and only parts identical to those specified should be used.

Sharp LC-52SB57U Specifications

General

Screen Size	52 inches
Display Type	LCD
Resolution	1920 x 1080
Aspect Ratio	16:9
Brightness	450 cd/m²
Response Time	6ms
HDMI Ports	3
Component Video Inputs	1
Composite Video Inputs	1
Digital Audio Output	1
Speakers	2 x 10W
Inputs	HDMI, Component, Composite
Viewing Angle	176° (H) / 176° (V)

Summary

Safety Precautions

IMPORTANT SERVICE SAFETY PRECAUTION

Critical safety guidelines for servicing the unit to prevent hazards.

PRECAUTIONS A PRENDRE LORS DE LA REPARATION

Essential safety measures for technicians during repair procedures.

PRECAUTIONS FOR USING LEAD-FREE SOLDER

Chapter 1. Specifications

Chapter 4. Removing of Major Parts

[1] REMOVING OF MAJOR PARTS (LC-46SB57U)

Step-by-step instructions for disassembling major components of the LC-46SB57U.

[2] REMOVING OF MAJOR PARTS (LC-52SB57U)

Step-by-step instructions for disassembling major components of the LC-52SB57U.

Chapter 5. Adjustment

[1] ADJUSTMENT PROCEDURE

Procedures for upgrading microprocessor software and performing adjustments.

[2] PUBLIC MODE SETTING PROCEDURE

Chapter 6. Troubleshooting Table

[1] TROUBLESHOOTING TABLE

Diagnostic flowcharts for troubleshooting common video and audio issues.

Chapter 7. Overall Wiring/System Block Diagram

[1] OVERALL WIRING DIAGRAM

[2] SYSTEM BLOCK DIAGRAM

Chapter 9. Schematic Diagram

[2] KEY Unit

[3] MAIN Unit