Optoma EP739 Service Manual page 36

- 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.
- Video
Test Signal:Composite video,S-Video and Component video
Test Pattern:NTSC,PAL,SECAM
1. Please check and ensure the unit can display the video signal without color
abnormal or image abnormal issue.
2. If not, please return the unit to repair area.
- HDTV
Test Signal:HDTV signal
Test Pattern:480i/p,576i/p,720p,1080i
1. Please check and ensure the unit can display the HDTV signal without color
abnormal or image abnormal issue.
2. If not, please return the unit to repair area.
4-8
EP739/EP739H/EP738
Series