File name LC-30HV4LCDSHARP.pdfLC-30HV4E
1st Edition
SERVICE MANUAL
LCD COLOUR TELEVISION
MODEL LC-30HV4E
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
Page Page
» IMPORTANT SERVICE SAFETY PRECAUTION ... 2 » POWER SYSTEM BLOCK DIAGRAM
» SPECIFICATIONS... 3 (AVC System) ... 70
» OPERATION MANUAL ... 4 » PC I/F BLOCK DIAGRAM (AVC System) ... 72
» DIMENSIONS ... 10 » SIGNAL BLOCK DIAGRAM (Display) ... 74
» REMOVING OF MAJOR PARTS ... 12 » POWER UNIT BLOCK DIAGRAM (Display) ... 76
» ADJUSTMENT PROCEDURES (AVC System) .. 19 » OVERALL WIRING DIAGRAM (AVC System) ... 78
» UPGRADING INSTALLED PROGRAMS ... 26 » OVERALL WIRING DIAGRAM (Display) ... 82
» ADJUSTMENT PROCEDURES (Display) ... 29 » DESCRIPTION OF SCHEMATIC DIAGRAM ... 84
» MAJOR IC INFORMATIONS ... 33 » WAVEFORMS ... 85
» TROUBLE SHOOTING TABLE ... 52 » SCHEMATIC DIAGRAM ... 86
» CHASSIS LAYOUT ... 62 » PRINTED WIRING BOARD ASSEMBLIES... 159
» SYSTEM BLOCK DIAGRAM (AVC System) ... 66 » PARTS LIST ... 204
» SIGNAL FLOW BLOCK DIAGRAM » PACKING OF THE SET ... 246
(AVC System) ... 68
SHARP CORPORATION
LC-30HV4E
IMPORTANT SERVICE SAFETY PRECAUTION
Ë Service work should be perfomed only by qualified service technicians who are thor-
oughly familiar with all safety checks and the servicing guidelines which follow:
WARNING » Use an AC voltmeter having with 5000 ohm per volt,
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