Optical Performance Measure - Optoma EP721 Family Service Manual

Inspection item
Inspection Distance
Criteria
4. Audio Test
Procedure
Inspection item
Inspection Distance
Criteria

4-8 Optical Performance Measure

Inspection Condition
- Environment luminance: 5 Lux
- Product must be warmed up for 3 minutes
- Distances from the screen: 2.38 M (EP721/727/723/728 Family)
- Screen Size: 60 inches diagonal
1. Test equipment
Procedure
- Test signal: Ycbcr/YPbPr
- HDTV performance test
- 1.8 M ~2.5 M
- Check any abnoraml color, line distortion or any noise on
the screen.
- Check the sound from speakers.
- Test equipment: DVD player
- Test signal: CVBS
- Audio performance test
- 1.8 M ~2.5 M
- Check the sound from speakers
- Check "Volume" is normal
- Check "Mute" is normal
2.00 M (EW1610 Family)
- Test equipment: video generator
- Test signal: analog 800 x 600@60Hz (EP721/723 Family)
EP721/727/723/728 Family / EW1610 Family
1024x768@60Hz (EP727/728 Family)
1280 x 800@60Hz(EW1610 Family)
Family) )
Family) )
Confidential
4-