HP LP2275w Service Manual

22" LCD Color Monitor
Service
Service
Service
Description
Table Of Contents...................................................1
Revision List..................................................2
1. Monitor Specification.............................................4
2. LCD Monitor Description..................................5
3. Operation Instruction...........................................6
3.1.General Instructions.........................................6
3.2. Control Button.................................................6
3.3 Adjusting the Picture..........................................7
4. Input/Output Specification.................................12
4.1. Input Signal Connector.....................................12
4.2. Factory Preset Display Modes...........................15
4.3. Power Supply Requirements..............................15
5. Panel Specification.........................................16
5.1.General Feature.............................................16
5.2. Optical Characteristics..............................17
6. Block Diagram..................................................18
6.1 Software Flow Chart....................................18
6.2. Electrical Block Diagram...........................20
7. Schematic.....................................................22
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
7.1 Main Board..................................................22
7.2 Power Board..................................................31
7.3 Inverter Board..........................................33
7.4 Key Board...................................................35
8.PCB Layout...................................................36
8.1.Main Board.................................................36
8.2 Inverter Board.................................................38
8.3.Power Board...................................................39
8.4.Key Board...............................................40
8.5.USB Board...............................................41
9. Maintainability................................................42
9.1.Equipments and Tools Requirement..............42
9.2.Trouble Shooting.......................................43
10.White-Balance, Luminance adjustment...49
11.Mechanical Instructions.............................51
12.Monitor Exploded View.................................56
13.BOM List.................................................58
14. Different Parts List....................................86
SAFETY NOTICE
1
HP LP2275w
Horizontal Frequency
30- 93 kHz
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