K10
29
%
100
))
L9
L8,
L7,
L6,
L5,
L4,
3,
L2,
,
1
(
ge
L11)/Avera
(Min(L10,
)
_
(
L
L
corner
Dark
Uniformity
Light
L1, L2,…,L9, L10, L11: the lx reading of 13 ANSI points
4. Contrast measurement(JBMA)
First measure the light output of nature white pattern of ANSI nine points. Second,
measure the dark pattern as the same way. And calculate the ratio of them.
Test Pattern: Full White and Full Dark Test Pattern
Formula:
Average(L1,L2,L3,L4,L5,L6,L7,L8,L9) of NW : Average(L1,L2,L3,L4,L5,L6,L7,L8,L9) of
Dark
= NW(L1+L2+L3+L4+L5+L6+L7+L8+L9)/9 : Dark(L1+L2+L3+L4+L5+L6+L7+L8+L9)/9
5. TV DISTORTION
Unit:
%
Brightness: Default
Contrast: Default
Measurement procedure (Projection Size 30 inch):
Measure the dimensions H1, H2 and H3, with H3 at the half image width, as shown above
for both zoom settings. For each the distortion is defined as:
VERTICAL
%
100
*
1
3
1
H
H
dist
TV
%
100
*
1
3
2
H
H
dist
TV
Measure the dimensions W1, W2 and W 3 at the half image height, as shown above. The
distortion is defined as:
HORIZONTAL
%
100
*
1
3
1
W
W
dist
TV
%
100
*
1
3
2
W
W
dist
TV
All should be within the absolute specification tolerance.
Summary of Contents for K10
Page 1: ...Acer K10 Service Manual 100 Recycled Paper Date 2008 12 31 K10 ...
Page 2: ...K10 II Update History 2008 12 31 First edition completed ...
Page 3: ...K10 III ...
Page 4: ...K10 IV Safety Instructions ...
Page 10: ...K10 4 1 2 System Block Diagram ...
Page 33: ...K10 27 5 2 LED Drive Board Connector Description J2 LED R J3 LED B J4 LED G J4 G J3 B J2 R ...