Acer AT3705, Service Manual

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MECHANISM SPECIFICATION
Cosmetic and quality standards for injection molded plastic parts
This specification defines the criteria to be used for inspection resulting in the acceptance or rejection of
parts due to visual, cosmetic and functional requirements for customer visible surfaces.
Surface quality
Surface color, gloss, texture, blemishes, and all other irregularities in the plastic shall comply with QCI’s
approval sheet.
Fade and color change
All external surfaces shall be sufficiently rugged to withstand normal operator usage without extreme
visible deterioration in color. The delta E must not exceed the value of 0.5 after 400 hours of UV
testing.
Reflectivity of surface ( Reserved )
Appearance Gap Specifications
Please refer to Cosmetic specification.
Torque Specifications
Common criterion
Torque ( Kg-cm )
Item Screw Type
W/Plastics W/Plastics W/Plastics
Remark
1 M2 x L 2~3 kg 2~3 kg M: Machine thread
2 T2 x L 2~4 kg 4~6 kg 2~4 kg T: Tapping thread
3 M2.5 x L 5~7 kg 3~5 kg
4 T2.5/2.6 x L 3~5 kg 3~5 kg 2~3 kg
5 M3 x L 4~6 kg 3~5 kg
6 T3 x L 4~6 kg 6~8 kg 4~6 kg
7 M4 x L 8~10 kg
8 T4 x L 7~9 kg