Optoma EX774 Serivce Manual page 15

Turn the
power ON
Yes
The lamp is ON
Yes
No
POWER:
No
POWER:
No
POWER:
No
POWER:
No
POWER:
No
Image
Display
Company Confidential
4 Blinks
Yes
5 Blink
Yes
6 Blinks
Yes
7 Blinks
Yes
9 Blinks
Optoma_______________________
No
•Thermal Break Sensor error
•Thermal Break Sensor disconnected.
Lamp does not light：lighting operation sound (ignition sound) exists.
• Main Board and Ballast Board Ass'y malfunction
• Ballast Connector (CJ4) or LVPS unit (CJ1) or MB(CN530)disconnected
• Lamp failure (Lamp is broken, damaged, or burst)
No
• Connector CN800 of Fan disconnected
•
Lamp fan
LAMP：1 Blinks
• Connector CN801 of Fan disconnected
•
Ballast fan
LAMP：2 Blinks
• Connector CN905 of Fan disconnected
•
Burner fan
LAMP：3 Blinks
• Connector CN802 of Fan disconnected
LAMP：4 Blinks •
Burner fan
No
•Lamp Cover is not attached.
•Switch (CN852) is open
No
Lamp does not light：No lighting operation sound (ignition sound) exists.
• Flexible cable of Color Wheel Ass'y is disconnected (CN650) or
broken.
• Color Wheel Ass'y malfunction (does not rotate).
• Main Board Ass'y malfunction (Color Wheel Ass'y does not rotate).
• Power Supply Unit malfunction.
• Index board malfunction (color wheel turns fast).
• C/W sensor PWB Ass'y (CN103) / MB PWB (CN850) is disconnected
or broken.
15
Rev. 00
malfunction
malfunction
malfunction
malfunction
Delta____________
2008/07/02