Test Condition - Optoma EP721 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 each (EP721/727/723/728 Family / EW1610 Family), the 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 > left > left > 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 >
EP721/727/723/728 Family / EW1610 Family
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
Confidential
4-2