Test Condition - Optoma EP720 Family Service Manual

4-4 Test Condition

- Circumstance brightness: Dark room less than 5.0 lux.
- Inspection distance: 1.8m~2.5m functional inspection.
- Screen size: 60 inches diagonal.
- After repairing, every unit should be run-in (refer to the table below).
Symptom
Normal repair
NFF
Auto shutdown
- Get into Burn-In Mode
* Cycle setting is based on the defect symptoms. ie: If it is NFF, the run-in time is 4 hours. You have
to set the lamp on for 50 min. and lamp off for 10 min for 4 cycles.
Press power > Source > Source > Menu
Choose Burn-In Test > enter
Lamp On (Min)
Lamp Off (Min)
Set burn in cycle
After setting up the time, choose Burn-In mode and hit enter
Screen Defects (While replacing DMD Chip, DMD BD and MB)
< Figure: Zone A &B Definition >
Run-in Time
2 hours
4 hours
6 hours
Press right key to adjust the time (50)
Press right key to adjust the time (10)
Press right key to adjust the cycle
EP720 Family/EP726 Family
Confidential
4-