Panel Defect Inspection - Acer P221W Service Manual

Acer
under windows 98 operating system, or flicker-pattern of pixel on-off. It should be that no flicker be
found on panel screen.

4.2 Panel Defect Inspection

4.2.1 Test mode: 1680x1050@60Hz
4.2.2 Test pattern: Crosshatch/Full white/Red/Green/Blue/Black/16 color bar/64 gray bars
4.2.3 Display quality must be (according to DIN 13406-2 pixel fault class II)
Bright dot defect
Dark dot defect
Total bright and dark dots
Bright Dots – 2 Adjacent B
Bright Dots – 3 or more Adjacent
Black Dots – 2 Adjacent B
Black Dots – 3 or more Adjacent
Distance between defect dots
Distance between Dark dots
Note 1: Dot defect is defined as the defective area is not larger than 50% of the dot area. Bright Dot is
defined 5% transmission ND filter.
Note 2: Light Leakage: There shall not be visible light around the customer's bezel after assembly in normal
View angle.
Defect Type Specification
THD
THD
THD
THD
THD
THD
THD
THD
THD
16
Service Manual
Major Minor