BenQ GL2040, Service Manual

Page: 15 / 89

15
(2) Display Inspection
Items Acceptable count
Bright dot
Random N 2 ≦
2 dots adjacent N 1
≦
3 dots adjacent or more N 0 ≦
Dark dot
Random N 3
≦
2 dots adjacent N 1
≦
3 dots adjacent or more N 0
≦
Distance
Minimum Distance Between Bright dots L 15mm ≧
Minimum Distance Between Dark dots L 15mm
≧
Total bright and dark dot N 4
≦
Display failure (V-line/H-line/Cross line etc.) Not allowable
Mura Not visible through 8% ND filter at 50% gray pattern or judge by limit sample ifnecessary
(2) Appearance inspection
Item Standards
Foreign Black/White/Bright Spot
0.15
＜
D 0.5 mm, N 4
≦ ≦
Foreign Black/White/Bright Lint
0.05
＜
W 0.1 mm, 0.5
≦
＜
L 5.0 mm, N 4
≦ ≦
Polarizer Scratches
0.05
＜
W 0.1 mm, 0.5 ≦
＜
L 10.0 mm, N 4 ≦ ≦
Dent/Air Bubble Avg. 0.15<D 0.5 mm, N 4
≦ ≦
5. External Appearance Inspection Criteria
Item Contents
Screw
Parts mounting, incomplete assembly, deformation, oxidized, crooked or rusty is not
permitted.
CCFT cable Cable not continuous 、 Break-off 、 Connector Burn-off /Break-off
Metal frame
(Bezel)
Scratch
*Noticeable scratch and exfoliation coating are not permitted.
*The oxidized metal is not permitted.
Incomplete assembly is not permitted.
Backlight
Scratch The scratch which may cause a problem in practical use is not permitted.
Break-off Breaking off is not permitted.
Crack The crack is not permitted.
Stain on Polarizer The stain which can’t be wiped off is not permitted.
Tape/Label Incorrect position, missed label is not permitted.
Connector Oxidized/rusty connector is not permitted.
Outline size Spec. out is not permitted.