Table Of Contents - Hitachi CML176SXW Service Manual

EP877/878 TFT LCD MONITOR CONTENTS
1. INTRODUCTION.......................................................................................................................... 4
1.1 Scope .................................................................................................................................................................... 4
1.2 Description ........................................................................................................................................................... 4
2. ELECTRICAL REQUIREMENTS ................................................................................................. 5
2.1 Standard Test Conditions........................................................................................................................................ 5
2.2 LCD monitor General specification ..................................................................................................................... 6
2.3 LCD Panel Specification ...................................................................................................................................... 7
2.4 Input Signals....................................................................................................................................................... 12
Supported Timing........................................................................................................................................................ 13
2.5 CONTROLS ........................................................................................................................................................ 15
2.6 White Color Temperature................................................................................................................................... 17
2.7 POWER SUPPLY ............................................................................................................................................... 18
2.8 Plug & Play(EDID) ............................................................................................................................................ 19
2.9 Audio Technical specification (EP877 Only) ..................................................................................................... 20
3. VL-750 DISPLAY CONTROL BOARD ....................................................................................... 21
3.1 Description ......................................................................................................................................................... 21
3.2 Features.............................................................................................................................................................. 21
3.3 BLOCK DIAGRAM ............................................................................................................................................ 21
System Block Diagram................................................................................................................................................ 22
3.4 Connector Locations .......................................................................................................................................... 22
3.5 Connector Type .................................................................................................................................................. 24
3.6 Signal Pin & Description ................................................................................................................................... 24
4. VK-723 Control Panel Board ..................................................................................................... 25
4.1 Description ......................................................................................................................................................... 25
4.2 Connector and Switch Locations........................................................................................................................ 25
4.3 Connector type.................................................................................................................................................... 25
4.4 Connector pin Assignment.................................................................................................................................. 25
4.5 Switch definition ................................................................................................................................................. 25
4.6 LED definition .................................................................................................................................................... 25
5. POWER SUPPLY & INVERTER BOARD .................................................................................. 26
5.1 Description ......................................................................................................................................................... 26
5.2 Power supply ( AC to DC section)...................................................................................................................... 26
5.3 Inverter (DC to AC Section) ............................................................................................................................... 27
5.4 Electrical characteristics.................................................................................................................................... 27
5.5 Connector locations............................................................................................................................................ 28
6. TROUBLESHOOTING ............................................................................................................... 30
6.1 Main Procedure.................................................................................................................................................. 30
7. MECHANICAL REQUIREMENTS .............................................................................................. 34
7.1 Vibration and Shock ........................................................................................................................................... 34
7.2 Package Drop Specification ............................................................................................................................... 34
7.3 Dimension Size and Weight ................................................................................................................................ 35
7.4 Gap Spec............................................................................................................................................................. 35
7.5 Tilt Base Rotation ............................................................................................................................................... 36
7.6 Plastic Material .................................................................................................................................................. 36
7.7 GAP Spec............................................................................................................................................................ 37
8. POWER LINE TRANSIENT TEST (IEC 61000-4-4 FAST TRANSIENTS/BURST) ................... 38
8.1 Peak Voltage: ..................................................................................................................................................... 38
8.2 Polarity : + / - ............................................................................................................................................. 38
8.3 Repetition Frequency of the impulse : 5 KHz..................................................................................................... 38
8.4 Rise-Time : 5ns
8.5 Impulse Duration: 50 nS
8.6 Relation to Power Supply: Asynchronous .......................................................................................................... 38
8.7 Burst Duration: 15 ms
8.8 Burst Period: 300 ms
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30% ..................................................................................................................................... 38
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30%......................................................................................................................... 38
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20% ............................................................................................................................ 38
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20% .............................................................................................................................. 38
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