Acer P5271 Acer P5271, P5271i, P5290 and P5390W Projector Series Service Guide - Page 66

(1) Please get into OSD menu. (2) To execute "Reset" function. 4-5 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 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) Frame < Figure: Zone A, Zone B & Frame (as green line) Definition, Active area=Zone A+ Zone B > P5271/P5290/P5390W/P5271i Confidential 4-