Optoma EP758 Service Manual page 43

- 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.
- Audio
1. Please check and ensure the function of audio is work as well.
(Volume,Treble,Bass,Mute)
2. If not, please return the unit to repair area.
- Reset All
After final QC step, we have to erase all saved change again and restore the factory
defaults. Please select and enter "Factory Reset" function of "Service Mode" to ensure the
function is work as well. This action will allow you erase all end-user's settings and restore
the original factory setting.
Coretronic Corporation
4-9
EP758/EP759