BenQ VP2212 Service Manual page 35

OPERATIONAL INSPECTION CRITERIA
1. 0 TEST PATTERN
KEY
A
B
FULL R, G, B, Window pattern
C
D
PATTERN
FULL WHITE
Hatch Pattern
16 gray steps pattern
1. chroma23291 input5 dot picture, adjust the
Brightness &contrast to MAX, Test 5dots
Brightness
2. chroma23291 input Full white picture,
measure the brightness at the center of the
picture
Chroma23291input R/G/B/Window video,
check dots and picture noise
C
hroma23291 input Hatch pattern check
picture position and OSD function
Chroma23291 input
pattern ,Check No visible saturation
35
TEST ITEM
16 gray steps