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Content Index

Abbreviations & Acronyms ............................................................................. 3

1 About This Manual ....................................................................................... 3

1.1. Trademark ............................................................................................................ 3

2 Introduction .................................................................................................. 4

2.1. RoHS (2002/95/EC) Requirements ...................................................................... 4

2.2. Safety Notice........................................................................................................ 4

2.3. Compliance Statement ......................................................................................... 4

2.4. General Descriptions ........................................................................................... 4

2.5. Related Service Information ................................................................................. 4

3 Product Overview ........................................................................................ 5

3.1. Specification ......................................................................................................... 5

3.2. Customer Acceptance ........................................................................................ 18

4. Level 1 Cosmetic / Appearance / Alignment Service .............................. 25

4.1. Software / Firmware Upgrade Process .............................................................. 25

4.2. Alignment procedure (for function adjustment) ................................................... 37

5. Level 2 Disassembly /Assembly Circuit Board and Standard Parts

Replacement .................................................................................................. 47

5.1. Exploded View ................................................................................................... 47

5.2. Disassembly /Assembly ..................................................................................... 49

5.3. Packing .............................................................................................................. 59

5.4. Block diagram .................................................................................................... 60

5.5. Trouble Shooting Guide ..................................................................................... 62

5.6. Circuit Operation Theory .................................................................................... 68

Appendix 1 – Screw List / Torque ................................................................. 71

Appendix 2-Physical Dimension Front View and Side view ....................... 76

BenQ GL2055 Product Service Manual

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