LG RD-JT30 Service Manual page 88

3 Reset
boundary
artifact
4 Eyecatcher
Border
Artifacts
5 Streaks
6 Projected
Images
Notes:
1. Projected blemish numbers include the count for the shadow of the window artifact in addition to
the artifact itself.
2. 3. 4. 5. 6.
No minor blemish shall be more than 5 inches long or have a total area of more than 5 square inches
on a 60-inch diagonal projected image.
During all Table 1 tests, projected images shall be inspected in accordance with the conditions of
inspection specified in Section 3.
The rejection basis for all cosmetic DMD defects (scratches, nicks, particles) will be the projected
image tests referenced in Table 1.
Any other image quality issue not specifically defined in this document shall be acceptable.
Screens < Gray7 shall not be used as a basis for rejecting a DMD for image quality.
Gray 30 1. No reset boundary artifact will be visible on Microsoft
Gray 30
Gray 10 1. No Eyecatcher or border artifact will be lighter than
Microsoft Gray 10
2. All Eyecatcher's and border artifacts > 5 inches from the
POM are acceptable
Blue 60 1. No streaks
Gray 10
White
Any screen 1. No adjacent pixels
2. No bright pixels in Active Area
3. __ 1 bright pixel in the POM
4. __ 3 dark pixels
5. __ 6 minor blemishes
6. No DMD window aperture shadowing on the Active
Area
7. No unstable pixels in Active Area
Non-Critical Zone
Critical
Zone 25%
Figure 1. Major Blemish Two Zone Screen
14