Optoma EP758 Service Manual page 42

- Dead pixel (Dark pixel)
Test Signal:1024 x 768 @ 75Hz
Test Pattern:Full white pattern
1. Please check and ensure the unit is under the spec. (Pixel number should be smaller
or amount to 6 pixels)
2. If not, please return the unit to repair area.
- Blemish (Bright)
Test Signal:1024 x 768 @ 75Hz
Test Pattern:Full black and Gray 30 patterns
1. Please check and ensure the unit is under the spec. (The bright blemish should not be
able to see under Gray 30 pattern)
2. If not, please return the unit to repair area.
- Blemish (Dark)
Test Signal:1024 x 768 @ 75Hz
Test Pattern:Full white and Blue 60 patterns
1. Please check and ensure the unit is under the spec. (The dark blemish should not be
able to see under Blue 60 pattern)
2. If not, please return the unit to repair area.
- Focus
Test Signal:1024 x 768 @ 75Hz
Test Pattern:Text pattern
1. Please check and ensure the unit is under the spec. (The text in the corner should be
able to see with clear)
2. If not, please return the unit to repair area.
- Boundary
Test Signal:1024 x 768 @ 75Hz
Test Pattern:Boundary frame pattern
1. Please check and ensure the unit is under the spec. (The horizontal and vertical
position of image should be adjustable to be the screen frame.)
2. If not, please return the unit to repair area.
Coretronic Corporation
4-8
EP758/EP759