File name Sharp LC-32SH25E.pdfLC-32SH25E
SERVICE MANUAL
No. SX8T4LC32SH25
LCD COLOUR TELEVISION MODELS
LC-32SH25E
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.
CONTENTS
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 ...10 CHAPTER 2. REMOVING OF MAJOR PARTS [1] REMOVING OF MAJOR PARTS ...11 CHAPTER 3. ADJUSTMENT PROCEDURE [1] ADJUSTMENT PROCEDURE ...16 [2] SERVICE MODE ...21 [3] SOFTWARE UPGRADE PROCEDURE...22 CHAPTER 4. TROUBLESHOOTING TABLE [1] TROUBLESHOOTING TABLE...26 CHAPTER 5. MAJOR IC INFORMATIONS [1] MAJOR IC INFORMATIONS...39 CHAPTER 6. BLOCK DIAGRAM/WIRING DIAGRAM [1] VIDEO & AUDIO BLOCK DIAGRAM ...59 [2] POWER MANAGEMENT BLOCK DIAGRAM ...60 [3] I2C and RS232 BLOCK DIAGRAM ...61 [4] WIRING DIAGRAM ...62 CHAPTER 7. PRINTED WIRING BOARD [1] MAIN UNIT PRINTED WIRING BOARD ...63 [2] POWER UNIT PRINTED WIRING BOARD ...65 [3] KEY UNIT PRINTED WIRING BOARD ...67 [4] IR UNIT PRINTED WIRING BOARD ...68 CHAPTER 8. SCHEMATIC DIAGRAM [1] MAIN SCHEMATIC DIAGRAM ...69 [2] POWER SCHEMATIC DIAGRAM ...83 [3] KEY SCHEMATIC DIAGRAM ...84 [4] IR SCHEMATIC DIAGRAM ...85 CHAPTER 9. Parts Guide [1] SPARE PARTS LIST...86 [2] CABINET PARTS ...108 [3] SUPPLIED ACCESSOORIES...110 [4] PACKING PARTS...111
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.
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LC-32SH25E
SAFETY PRECAUTION
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: · Use an AC voltmeter having with 5000 ohm per volt, or higher, sen-
WARNING
1. For continued safety, no modification of any circuit should be attempted. 2. Disconnect AC power before servicing.
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