Service manual
C20
Condential
4-3
4-4-2 Burn-In Test
- Temperature: 15°C~35°C
- Circumstance brightness: Normal environment
- Screen size: No concern
- Display mode: ECO mode
After repairing C20, it should be Burn-in (refer to the below table).
Symptom Burn-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 burn-in time is 4 hours. You
have to set the lamp on for 50 min. and lamp off for 10 min for 4 cycles.
Note: Please make sure that the hot exhaust airows from projectors can ow towards the aisle.
Get into Service Mode (as above step 4-2)
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.
4-5 Test Inspection Procedure
- After changing parts, check the information below
Update
Change parts
Main Board Module Firmware Engine Module
Version Update V V
System Reset V V
EDID V
Duty Selection V V