Norcent LT2025W Service Manual

20" LCD TV Color Monitor
Service
Service
Service
Description
Table Of Contents..........................................................1
Revision List............................................................2
Important Safety Notice.....................................3
1. Monitor Specification..................................................4
2. Operating Instructions............................................6
2.1 The Use Of Remote Control................................6
2.2 Front Panel Control Knobs...................................6
2.3 OSD Operating....................................................8
2.4 How To Connect...................................................13
3. Input/Output Specification.......................................17
3.1 Input Signal Connector.........................................17
3.2 Factory Preset Display Modes................................17
4. Mechanical Instructions...........................................18
5. Repair Flow Chart.................................................21
6. PCB Layout........................................................27
6.1 Main Board.......................................................27
ANY PERSON ATTEMPTING TO SERVICE THIS CHASSIS MUST FAMILIARIZE HIMSELF WITH THE
CHASSIS AND BE AWARE OF THE NECESSARY SAFETY PRECAUTIONS TO BE USED WHEN SERVICING
ELECTRONIC EQUIPMENT CONTAINING HIGH VOLTAGES.
CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING

TABLE OF CONTENTS

Page Description
6.2 Power Board.............................................29
6.3 Key Board................................................30
6.4 Tuner Board.....................................................30
7. Block Diagram..........................................................31
7.1 Main Board............................................................31
7.2 Power Board.........................................................32
8. Schematic Diagram...........................................33
8.1 Main Board.......................................................33
8.2 Power Board.................................................46
8.3 Key Board....................................................47
8.4 Tuner Board.........................................................48
8.5 IR Board.............................................................52
8.6 Earphone Board....................................................53
9. Exploded View.........................................................54
10. BOM List........................ ..................................55
SAFETY NOTICE
1
Norcent LT2025W
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