Toshiba TDP-D1 Service Manual page 109

3.2 Test Sequence
Tests shall be run in the sequence listed in Table 1.
SEQ # TEST
1 Major Dark
Blemish
2 Major Light
Blemish
3 Eyecatcher
Streaks
Projected Images
Notes: Tests shall be performed in the sequence indicated in Table I.
1. Projected blemish numbers include the count for the shadow of the artifact in addition to the
artifact itself, so that the count usually represents a single artifact on the window.
2. No 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. (
3. During all Table 1 tests, projected images shall be inspected in accordance with the
conditions of inspection specified in Section 3.
4. The rejection basis for all cosmetic DMD defects (scratches, nicks, particles) will be the
projected image tests referenced in Table 1.
5. Any other image quality issue not specifically defined in this document shall be acceptable.
6. Black screens shall not be used as a basis for rejecting DMDs for image quality.
TABLE 1. Image Quality Specification
SCREEN
Two Zone Blue
1.
60
2.
3.
Two Zone
1.
Gray 10
2.
3.
Gray 10
1.
Blue 60
1.
Gray 10
White
Any screen 1. No adjacent pixels
2. No bright pixels (Active Area)
3. 1 bright pixel (SOM)
4. 4 dark pixels
5. 6 minor blemishes
6. No DMD window aperture shadowing on
7. No unstable pixels in Active Area
ACCEPTANCE CRITERIA
No blemish will be darker than Microsoft
Blue 60 in the Critical Zone
2 blemishes in the Non-Critical Zone
No blemish will be > ½" long/diameter
No blemish will be lighter than Microsoft
Gray 10 in the Critical Zone
2 blemishes in the Non Critical Zone
No blemish will be > ½" long/diameter
No eyecatcher will be lighter than Microsoft
Gray 10
No streaks
the Active Area
Major Blemish tests)
≒ ½ inch for
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