ViewSonic A91f+-1, Service Manual

Page: 11 / 83

4.12 LIGHT OUTPUT
AT 80 KHZ 1280X1024/75HZ MODE.
4.12.1 LL => AT BLACK PATTERN = 0.4 -1.2FL AT BRIGHTNESS 100%, CONTRAST 0%
FOR 9300
O
K
4.12.2 HL => AT WHITE BLOCK PATTERN = 37-43 FL AT BRIGHTNESS 50%, CONTRAST
100% FOR 9300
O
K
4.12.3 ABL => AT FULL-WHITE PATTERN 28-32 FL, BRIGHTNESS 50%, CONTRAST
100% FOR 9300
O
K
4.13 BRIGHTNESS UNIFORMITY
4.13.1 > 75% MAXIMUM BETWEEN CENTER TO ANY EIGHT POINTS WITHIN THE
DISPLAY PICTURE FULL WHITE PATTERN
4.14 SIZE REGULATION
4.14.1 STATIC REGULATION
PICTURE GROWTH FROM MINIMUM LIGHT OUTPUT TO MAXIMUM LIGHT OUTPUT
SHALL BE LESS THAN 3mm WHEN PICTURE IS EXCHANGED FROM
4.14.2 DYNAMIC REGULATION
PICTURE GROWTH SHALL BE LESS THAN 1 mm WHEN PICTURE IS EXCHANGED
FROM
A
D
F
B C
E
H G
CENTER
PICTURE
BEZEL
BLACK WHITE
A
B
A'
B`
PICTURE
BEZEL
370mm
WHITE
BLACK 100mm
100mm
< 1 mm
8
ViewSonic Corporation
Co
nfidential - Do Not Copy A91f+-1