Optoma H77 Service Manual page 37

Blemish (Bright) :
Test Signal : 1024 x 768 @ 75Hz
Test Pattern : Full black and Gray 30 patterns
- Please check and ensure the unit is within the spec.
(The bright blemish should not be seen under Gray 30 pattern)
- If out of spec, please return the unit to repair area.
Blemish (Dark) :
Test Signal : 1024 x 768 @ 75Hz
Test Pattern : Full white and Blue 60 patterns
- Please check and ensure the unit is within the spec.
(The dark blemish should not be seen under Blue 60 pattern)
- If out of spec, please return the unit to repair area.
Focus :
Test Signal : 1024 x 768 @ 75Hz
Test Pattern : Text pattern
- Please check and ensure the unit is within the spec.
(The text in the corner should be shown clearly)
- If not, please return the unit to repair area.
Boundary :
Test Signal : 1024 x 768 @ 75Hz
Test Pattern : Boundary frame pattern
- Please check and ensure the unit is within the spec.
(The horizontal and vertical position of image should be adjustable to be the screen frame.)
- If not, please return the unit to repair area.
Video :
Test Signal : Composite video, S-Video and Component video
Test Pattern : NTSC, PAL, SECAM
- Please check and ensure the unit can display the video signal without color abnormal or image abnor-
mal issue.
- If not, please return the unit to repair area.
4-8 H77