Sharp LC-32SV21L, Service Manual

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LC-32SV21L&LC-42SV31L
1
SERVICE MANUAL
LCD COLOUR TELEVISION
LC-32SV21L
MODEL
LC-42SV31L
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.
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 ..................2
PRECAUTIONS FOR USING LEAD-FREE SOLDER ...........3
CHAPTER 1. OPERATION MANUAL
[1] SPECIFICATIONS ............................................................4
[2] OPERATION MANUAL .....................................................5
[3] DIMENSIONS .................................................................11
CHAPTER 2. REMOVING OF MAJOR PARTS
[1] ASSY/PANEL REMOVAL................................................12
[2] SET RE-ASSEMBLY.......................................................23
CHAPTER 3. ADJUSTMENT PROCEDURE
[1] ADJUSTMENT PROCEDURE ........................................24
[2] SOFTWARE UPGRADE PRODUCE ..............................29
CHAPTER 4. TROUBLESHOOTING TABLE
[1] TROUBLESHOOTING TABLE .......................................37
CHAPTER 5. MAJOR IC INFORMATIONS
[1] MAJOR IC INFORMATION .............................................43
[2] DETAIL ICs INFORMATION ...........................................53
CONTENTS
CHAPTER 6. BLOCK DIAGRAM/WIRING DIAGRAM
[1] BLOCK DIAGRAM ..........................................................62
[2] WIRIGN DIAGRAM ……..................................................64
CHAPTER 7. PRINTED WIRING BOARD
[1] MAIN UNIT PRINT WIRING BOARD …..……..............66
[2] POWER UNIT PRINT WIRING BOARD .........................68
[3] KEY UNIT PRINTED WIRINGBOARD ............................72
[4] IR UNIT PRINTED WIRING BOARD ..............................72
CHAPTER 8. SCHEMATIC DIAGRAM
[1] MAIN SCHEMATIC DIGRAM .........................................73
[2] POWER SCHEMATIC DIGRAM .....................................90
[3] KEY SCHEMATIC DIGRAM …………….........................92
[4] IR SCHEMATIC DIGRAM ..........................
..................
...93
CHAPTER 9. PARTS GAUILD
[1] SPARE PARTS LIST .........................
...........................
..94
[2] CABINET PARTS .........................................
................
..96
[3] PACKING PARTS ………………………………………….99
SHARP
SHARP CORPORATION