NEC MultiSync LCD1970V Manuals

29

Adjustment Procedures

• • 1

    Service Manual
  • 5

    Table of Contents
  • 6

    Declaration
  • 6

    Warning, Caution
  • 7

    Canadian Department of Communications Compliance Statement
  • 7

    Declaration of Conformity
  • 8

    Contents
  • 9

    Quick Start
    • 11

      Raise and Lower Monitor Screen
    • 11

      Remove Monitor Stand for Mounting
    • 12

      Flexible Arm Installation
  • 13

    Controls
  • 14

    Menu Tools
  • 15

    Recommended Use
  • 17

    Specifications for LCD1970V
  • 18

    Specifications for LCD1970NX
  • 19

    Features
  • 20

    Troubleshooting
  • 21

    Tco'03
  • 22

    Manufacturer's Recycling and Energy Information
  • 23

    Serial Number Information

• 30

  2 Adjustment Conditions

  • 30

    Time for Adjustment
  • 30

    Measuring Instruments, Jigs, and Tools
  • 30

    Power Supply Voltage
  • 30

    Aging

• 30

  1 Application

• 31

  4 Basic Operation (Front Control Panel Layouts)

• 31

  3 Default Setting

• 32

  5 Set Adjustments

  • 32

    Power On
  • 33

    Factory Mode
    • 33

      How to Enter Service Mode
    • 34

      How to Use Service Mode
    • 38

      How to Exit Service Mode
    • 38

      Burn in Mode

• 39

  6 Auto Contrast Adjustment

  • 39

    ADC Bias and Gain Control
  • 39

    Panel Brightness Check
  • 39

    Panel Color Check
  • 39

    Color Temperature Check
  • 40

    Reference Signal Timing

41

Inspection

• • 41

    Inspection -----------------------------------------------------------------------------

• 42

  1 General Description

• 43

  2 Electrical Characteristics

  • 43

    Power Supply
  • 44

    LCD Panel
  • 44

    85Hz Refresh Rate Support
  • 44

    White Color Temperature
  • 45

    Check Power Manage Function

• 46

  3 External Inspection On the LCD Module

  • 46

    Inspection Conditions
  • 46

    Electrical Inspection Specification
  • 49

    Polarizer Defects
  • 49

    Foreign Material
  • 49

    Line Defect
  • 49

    Bezel Appearance

• 50

  4 Safety Test

  • 50

    Input Current Measurements
  • 50

    Power Source/Earth Connections
  • 51

    Dielectric Strength Test
  • 51

    Leakage Current Test
  • 52

    Insulation Resistance Test

• 53

  5 PLUG & PLAY Communication Inspection

  • 53

    System Connection
  • 54

    Input Signal
  • 54

    Programs
  • 55

    Operations
    • 55

      EDID Data Inspection and Writing to the D-SUB Connector (Analog)
    • 58

      EDID Data Inspection and Writing to the DVI-D Connector (Digital)
  • 59

    EDID Data File

• 60

  Appendix Reference Signal Timings

  • 67

    Power Circuit
  • 98

    Block Diagram
  • 103

    Packing Specification

• 23

  Why Do We Have Environmentally Labelled Computers
• 23

  What Does Labelling Involve
• 23

  Environmental Requirements

• 8

  Raise and Lower Monitor Screen
• 8

  Remove Monitor Stand for Mounting
• 9

  Flexible Arm Installation