NEC Multi Sync EA221WM Service Manual page 42

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5.5.2 For SEC panel (LTM220M1-L01 LLB SZ SEC)
Conditions
Viewing distance
Ambient illumination
Ambient temperature 25 + - 5 'C
Viewing angle
Display pattern
Inspection area
Defect Modes
Dark / bright spots
Points on the display which appear dark / bright and remain unchanged in size
Dark / bright lines
Lines on the display which appear dark / bright and remain unchanged in size
Polarizer scratch
When the unit is lit a light, line is seen across a darker background; line does not vary in size
Polarizer dent
When the unit is lit a light, light (white) spots appear against a darker background, and do not vary in size
Bright/dark dot
A sub-pixel (R, G, B dot) stuck off / on
Mechanical Inspection
Chassis Gap
Silicone Gasket (Glue)
Light Leakage
* If there is none identified criteria in this specification, Samsung will refer production specification that
Customer and Samsung agreed.
* If there is mechanical dimension issue which has no designated tolerance, Samsung will apply natural
tolerance.
35 ~ 50 cm
300 ~ 700 Lux (nominal 500 Lux)
The surface of the module and the inspector's line of view shall be at 90 degrees.
Pure R, G, B, Black and White
active area
max. 0.7mm
silicone material shall not be exposed beyond the metal frame edge into the view
area
there shall be no visible light around the edges of the screen.
5-4

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