1
AL 922 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
.......................................................................................................................................................11
2.5
Controls
..............................................................................................................................................................15
2.6
White Color Temperature
...................................................................................................................................17
2.7
Power Supply
......................................................................................................................................................18
2.8
Plug & Play(Edid)
...............................................................................................................................................18
2.9
Audio Technical Specification
............................................................................................................................19
3. VL-901 DISPLAY CONTROL BOARD....................................................................................................... 20
3.1
Description
..........................................................................................................................................................20
3.2
Features
..............................................................................................................................................................20
3.3
Block Diagram
....................................................................................................................................................21
3.4
Connector Locations
...........................................................................................................................................22
3.5
Connector Type
...................................................................................................................................................22
3.6
Connector Pin Assignment
..................................................................................................................................22
4. VK901 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
..................................................................................................................................................26
4.6
LED definition
.....................................................................................................................................................26
5. INVERTER BOARD.................................................................................................................................... 27
5.1
Description
..........................................................................................................................................................27
5.2
Electrical characteristics
....................................................................................................................................27
5.3
Connector locations
............................................................................................................................................28
6. DC/DC POWER and Audio CKT VM-902 ................................................................................................. 29
6.1
Input:
...................................................................................................................................................................29
6.2
Output:
................................................................................................................................................................29
6.3
Efficiency.
...........................................................................................................................................................29
6.4
Connector Locations
...........................................................................................................................................29
7. TROUBLESHOOTING ............................................................................................................................... 31
7.1
Main Procedure
..................................................................................................................................................31
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
Содержание AL922
Страница 21: ...21 3 3 BLOCK DIAGRAM ...
Страница 31: ...31 7 TROUBLESHOOTING 7 1 Main Procedure ...
Страница 32: ...32 7 1 1 Power Circuit Troubleshooting ...
Страница 33: ...33 7 1 2 Backlights Troubleshooting ...
Страница 34: ...34 7 1 3 Performance Troubleshooting ...
Страница 35: ...35 7 1 4 Function Troubleshooting ...
Страница 38: ...38 Back Cover Cable Cover Gap 0 8 mm B 1 2 mm Base Cover Neck Cover Gap 0 8 mm C 1 2 mm ...
Страница 42: ...42 WAVESHAPE ...
Страница 48: ...48 APPENDIX A PARTS LISTS ...
Страница 50: ...50 A 4 461A7830011 Firmware Ctrl Board VL 901 ...
Страница 53: ...53 APPENDIX B DISPLAY UNIT ASSEMBLY ...
Страница 61: ...61 APPENDIX C P C B A ASSEMBLY ...