Macbeth Color Chart; Focus Chart; Grey Scale Chart (Shading Test) - Motorola A920 Service Manual

Level 3 Service Manual

Macbeth Color Chart

1. From the computer, open the captured color
chart image.
2. Compare, the color blocks of the printed
Macbeth color chart to the captured image.
Block 1-6
Block 7-12
Block 13-18
Block 19-24
Follow the listed verifications to determine the quality
of the image.
1. Minimal noise level for Blue, Green and Red
on blocks 19 through 24.
2. Uniformity for grey scale blocks 19 through 24.
3. Good white balance on blocks 19 through 24.
4. Good color reproduction on blocks 13 through
18.
Preliminary
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Focus Chart

1. From the computer, open the captured focus
chart image.
Verify the focus quality at the center, top-left corner,
bottom-left corner, top-right corner, and bottom-right
corner.

Grey Scale Chart (Shading Test)

1. From the computer, open the captured grey
scale chart image.
Verify that there is minimal shading deviations on all four
corners when compared to the center of the image.
Manual Test Procedures
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