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AL1911 TFT LCD MONITOR
CONTENTS
1. INTRODUCTION................................................................................................................................ 3
1.1 Scope............................................................................................................................................................................3
1.2 Description..................................................................................................................................................................3
2. ELECTRICAL REQUIREMENTS......................................................................................................... 4
2.1 Standard Test Conditions .........................................................................................................................................4
2.2 LCD monitor General specification.........................................................................................................................4
2.3 LCD Panel Specification ...........................................................................................................................................5
2.4 Input Signals.............................................................................................................................................................10
2.5 Controls.....................................................................................................................................................................14
2.6 White Color Temperature .......................................................................................................................................16
2.7 Power Management .................................................................................................................................................17
2.8 Plug & Play(EDID)...................................................................................................................................................18
2.9 Audio Technical specification.................................................................................................................................18
3. VL-901 DISPLAY CONTROL BOARD............................................................................................... 19
3.1 Description................................................................................................................................................................19
3.2 Features.....................................................................................................................................................................19
3.3 Block Diagram..........................................................................................................................................................19
3.4 Connector Locations................................................................................................................................................21
3.5 Connector Type.........................................................................................................................................................21
3.6 Connector pin assignment ......................................................................................................................................21
4. VK906 Control Panel Board............................................................................................................ 24
4.1 Description................................................................................................................................................................24
4.2 Connector and Switch Locations............................................................................................................................24
4.3 Connector type..........................................................................................................................................................24
4.4 Connector pin Assignment......................................................................................................................................24
4.5 Switch definition.......................................................................................................................................................25
4.6 LED definition...........................................................................................................................................................25
5. POWER SUPPLY (VI-902) ............................................................................................................... 26
5.1 Electrical specification............................................................................................................................................26
5.2 Pin Assignments........................................................................................................................................................27
6. VM-902 AUDIO BOARD................................................................................................................... 28
6.1 Description................................................................................................................................................................28
6.2 Connector Locations................................................................................................................................................28
7. TROUBLESHOOTING ..................................................................................................................... 30
7.1 Main Procedure........................................................................................................................................................30
8. MECHANICAL REQUIREMENTS...................................................................................................... 36
8.1 Vibration and Shock ................................................................................................................................................36
8.2 Package Drop Specification ...................................................................................................................................36
8.3 Dimension Size and Weight....................................................................................................................................37
8.4 Gap Spec....................................................................................................................................................................37
8.5 Tilt Base Rotation.....................................................................................................................................................39
8.6 Swivel Base Rotation ...............................................................................................................................................39
8.7 Plastic Material........................................................................................................................................................40
8.8 GAP Spec. ..................................................................................................................................................................40
9. Power Line Transient Test (IEC 61000-4-4 Fast Transients/Burst).................................................. 40
9.1 Peak Voltage.............................................................................................................................................................40
9.2 Polarity .....................................................................................................................................................................40
9.3 Repetition Frequency of the impulse ....................................................................................................................40
9.4 Rise-Time ..................................................................................................................................................................41
9.5 Impulse Duration......................................................................................................................................................41
9.6 Relation to Power Supply........................................................................................................................................41
9.7 Burst Duration..........................................................................................................................................................41
9.8 Burst Period..............................................................................................................................................................41
9.9 Climatic Conditions .................................................................................................................................................41
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