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LC-46SB57U/LC-52SB57U
SERVICE MANUAL
No. S49Y6LC46SB57
LCD COLOR TELEVISION
LC-46SB57U
MODELS LC-52SB57U
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.
CONTENTS
SAFETY PRECAUTION CHAPTER 6. TROUBLESHOOTING TABLE
IMPORTANT SERVICE SAFETY [1] TROUBLESHOOTING TABLE ......................6-1
PRECAUTION....................................................i
.
PRECAUTIONS A PRENDRE LORS DE CHAPTER 7. OVERALL WIRING/SYSTEM BLOCK
LA REPARATION ..............................................ii
. DIAGRAM
PRECAUTIONS FOR USING LEAD-FREE [1] OVERALL WIRING DIAGRAM ......................7-1
SOLDER .......................................................... iii
. [2] SYSTEM BLOCK DIAGRAM .........................7-2
CHAPTER 1. SPECIFICATIONS CHAPTER 8. PRINTED WIRING BOARD
[1] SPECIFICATIONS ........................................ 1-1
. ASSEMBLIES
[1] KEY Unit ........................................................8-1
CHAPTER 2. OPERATION MANUAL [2] MAIN Unit ......................................................8-2
[1] OPERATION MANUAL ................................. 2-1
. [3] R/C, LED Unit ................................................8-6
CHAPTER 3. DIMENSIONS CHAPTER 9. SCHEMATIC DIAGRAM
[1] DIMENSIONS (LC-46SB57U)....................... 3-1
. [1] DESCRIPTION OF SCHEMATIC
[2] DIMENSIONS (LC-52SB57U)....................... 3-2
. DIAGRAM......................................................9-1
[2] KEY Unit ........................................................9-2
CHAPTER 4. REMOVING OF MAJOR PARTS [3] MAIN Unit ......................................................9-3
[1] REMOVING OF MAJOR PARTS [4] R/C, LED Unit ..............................................9-19
(LC-46SB57U)............................................... 4-1
.
[2] REMOVING OF MAJOR PARTS Parts Guide
(LC-52SB57U)............................................... 4-7
.
CHAPTER 5. ADJUSTMENT
[1] ADJUSTMENT PROCEDURE ...................... 5-1
.
[2] PUBLIC MODE SETTING PROCEDURE ...... 5-16
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.
LC-46SB57U/LC-52SB57U
LC-46SB57U
SAFETY PRECAUTION Service Manual
IMPORTANT SERVICE SAFETY PRECAUTION
Service work should be performed only by qualified service technicians who are thoroughly familiar with all safety checks and the
servicing guidelines which follow:
WARNING