Optoma EP739 Service Manual page 37

- Audio
1. Please check and ensure the function of audio is work as well.
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.
4-9
EP739/EP739H/EP738
Series