Optoma TX7156 - Page 24

Delta Elec. Inc. EP7155i & EP1691i
Company Confidential Optoma_______________________ Delta____________
24
2010/01/11
Yes
Yes
Yes
• Lamp malfunction
• Power Supply Unit malfunction
• Black lines on screen (horizontal and vertical)
→ DMD Set malfunction
• Missing pixels (Missing white: 1 or more, missing black: 5 or more, or
sequence missing pixels)
→ DMD Set malfunction
• Shadows on screen
→ Dirt on DMD/projection lens surface
• Bluish shadows on corners of screen (during white screen display)
→ Shifted optical axis of Lens Base Unit
Check the
projection
Screen
Check using all black/white screens with
PC connection
Are abnormalities
noticeable on
projection screen?
Does the lamp
go off during
o
p
eration?
POWER: OFF
Lamp: OFF
Temp: ON (RED)
Is LAMP Light again?
System OK
Normal operation
• Temperature protector operated due to the increase in
temperature based on operating environment
• Temperature protector operated due to blocked suction and
exhaust holes or dirty fan
Yes
No
No
Yes
Yes
No
No