Acer EP720, Service Manual

Page: 58 / 107

Confidential
4-2
X1161/X1261/X1161A/X1161N/X110/H5360
4-4 Test Condition
- Circumstance brightness: Dark room less than 2.0 lux.
- Inspection distance: 1.8 m~2.5 m functional inspection.
- Screen size: 60 inches diagonal.
- After repairing each unit, it should be Run-in (refer to the below table).
Symptom Run-in Time
Normal repair 2 hours
NFF 4 hours
Auto shutdown 6 hours
- 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 on remote controller
Choose Burn In > enter
Lamp On (Min)
Press right key to adjust the time (50)
Lamp Off (Min) Press right key to adjust the time (10)
Set Burning cycle Press right key to adjust the cycle
After setting up the time, choose ''Enter into Burn In Mode'' and press "Menu" button.
Screen Defects (While replacing DMD Chip, DMD Board, Main Board)
< Figure: Zone A, Zone B, Zone C & Frame (as green line) Definition, Active area=Zone A + Zone B >
Frame