Table Of Contents - Acer AL1731 Service Manual

CONTENTS
1. INTRODUCTION .......................................................................................................................................... 3
1.1 Scope .................................................................................................................................................................... 3
1.2 Description ........................................................................................................................................................... 3
2. ELECTRICAL REQUIREMENTS................................................................................................................. 4
2.1 Standard Test Conditions ..................................................................................................................................... 4
All tests shall be performed under the following conditions, unless otherwise specified............................................. 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................................................................................................................................... 19
2.7 POWER SUPPLY ............................................................................................................................................... 20
2.8 Plug & Play (EDID) ........................................................................................................................................... 22
2.9 Audio Technical specification ............................................................................................................................ 23
3. VL-903 DISPLAY CONTROL BOARD...................................................................................................... 24
3.1 Description ......................................................................................................................................................... 24
3.2 Features.............................................................................................................................................................. 24
3.3 BLOCK DIAGRAM ............................................................................................................................................ 25
3.4 Connector Locations .......................................................................................................................................... 26
3.5 Connector Type .................................................................................................................................................. 26
3.6 Connector pin assignment .................................................................................................................................. 27
4. VK-903 Function Control key Board....................................................................................................... 30
4.1 Description ......................................................................................................................................................... 30
4.2 Connector and Switch Locations........................................................................................................................ 30
4.3 Connector type.................................................................................................................................................... 30
4.4 Connector pin Assignment.................................................................................................................................. 30
4.5 Switch definition ................................................................................................................................................. 31
4.6 LED definition .................................................................................................................................................... 31
5. TROUBLESHOOTING ............................................................................................................................... 32
5.1 Main Procedure.................................................................................................................................................. 32
6. MECHANICAL REQUIREMENTS ............................................................................................................. 37
6.1 Vibration and Shock ........................................................................................................................................... 37
6.2 Package Drop Specification ............................................................................................................................... 37
6.3 Dimension Size and Weight ................................................................................................................................ 38
6.4 Tilt Base Rotation ............................................................................................................................................... 40
6.5 Plastic Material .................................................................................................................................................. 40
6.6 GAP Spec............................................................................................................................................................ 40
7. Power Line Transient Test (IEC 61000-4-4 Fast Transients/Burst) ..................................................... 40
7.1 Peak Voltage: ..................................................................................................................................................... 40
7.2 Polarity : + / - ............................................................................................................................................. 41
7.3 Repetition Frequency of the impulse : 5 KHz..................................................................................................... 41
7.4 Rise-Time : 5ns
7.5 Impulse Duration: 50 nS
7.6 Relation to Power Supply: Asynchronous .......................................................................................................... 41
7.7 Burst Duration: 15 ms
7.8 Burst Period: 300 ms
7.9 Climatic Conditions: .......................................................................................................................................... 41
7.10 Test Procedure: .................................................................................................................................................. 41
8. Power Line Surge Test (IEC 61000-4-5 Surge) ...................................................................................... 43
8.1 Climatic Condition ............................................................................................................................................. 43
8.2 Test Conditions:.................................................................................................................................................. 43
8.3 The surge will be applied between lines and between lines and ground ........................................................... 43
8.4 If not otherwise specified, the surge to power supply circuits shall be applied synchronized .......................... 43
8.5 The surge voltage for test is from 1 KV and increases 1 kV for each step ........................................................ 43
8.6 The recommended severity levels for the surge voltage test is 2.0 KV ............................................................. 43
8.7 Display set high-resolution mode, AC input use AC 240V................................................................................ 43
9. ENVIROMENT REQUIREMENT................................................................................................................ 44
9.1 Operating............................................................................................................................................................ 44
±
30% ..................................................................................................................................... 41
±
30%......................................................................................................................... 41
±
20% ............................................................................................................................ 41
±
20% .............................................................................................................................. 41
1