21.5″LCD Color Monitor BenQ E2220HD
2
Content Index
Abbreviations & Acronyms........................................................................................................................................3
1. About this Manual...................................................................................................................................................5
1.1 Important ............................................................................................................................................................5
1.2 Trademark ..........................................................................................................................................................5
2. Introduction.............................................................................................................................................................6
2.1 RoHS (2002/95/EC) Requirements – Applied to all countries require RoHS.....................................................6
2.2 Safety Notice ......................................................................................................................................................6
2.3 Compliance Statement .......................................................................................................................................6
3. General Description................................................................................................................................................7
4. Related service information...................................................................................................................................7
5. Product Overview ...................................................................................................................................................8
5.1 Monitor Specifications ........................................................................................................................................8
5.2 Packing.............................................................................................................................................................10
Level 1 Cosmetic / Appearance / Alignment Service ............................................................................................12
Visual Inspection & Cleaning..................................................................................................................................12
Software/Firmware Upgrade Process ....................................................................................................................12
ISP writing card and connecting instruction ...........................................................................................................12
DDC instruction ......................................................................................................................................................16
Adjustment / Alignment Procedure .........................................................................................................................32
Level 2 Circuit Board and Standard Parts Replacement ......................................................................................45
Product Exploded View ..........................................................................................................................................45
Six angles’ view ......................................................................................................................................................47
Product Disassembly..............................................................................................................................................48
Block Diagram ........................................................................................................................................................53
Schematic Diagram ................................................................................................................................................55
Troubleshooting Guide ...........................................................................................................................................68
PCB LAYOUT .........................................................................................................................................................76
Appendix 1 – Screw List / Torque ...........................................................................................................................83
