Norcent LT2790BK Service Manual

27'' LCD TV
Service
Service
Service
Description
Table Of Contents..........................................................1
Revision List............................................................2
Important Safety Notice.....................................3
1. Monitor Specification..................................................4
2. Operating Instructions............................................5
2.1 The Use Of Remote Control....................................5
2.2 Front Panel Control Knobs......................................6
2.3 OSD Operating....................................................7
2.4 How To Connect...................................................14
3. Input/Output Specification.......................................16
3.1 Input Signal Connector.........................................16
3.2 Factory Preset Display Modes................................17
4. Mechanical Instructions...........................................18
5. Repair Flow Chart.................................................21
6. White Balance, Luminance Adjustment.................23
7.PCB Layout................................................25
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
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TABLE OF CONTENTS

Page Description
7.1 Main Board...............................................25
7.2 Power Board.............................................27
7.3. Key Board.........................................................29
7.4 IR Board..........................................................29
8. Block Diagram................................................30
8.1 Main Board........................................................30
8.2 Power Board................................................31
9. Schematic Diagram..............................................32
9.1 Main Board.....................................................32
9.2 Power Board.................................................49
9.3 Audio Board................................................50
9.4 Side Board ..................................................51
9.5 IR Board...................................................52
10. Exploded View.........................................................53
11.BOM List...........................................................54
SAFETY NOTICE
1
Norcent LT2790BK
Horizontal Frequency
31- 60KHz
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