Optoma EP7155i Service Manual page 22

Delta Elec. Inc.
Turn the
power ON
Yes
The lamp is ON
Yes
No
POWER:
No
POWER:
Lamp: OFF
Temp: OFF
POWER: 6 Blinks
POWER:
POWER:
Display
Company Confidential
22
EP7155i & EP1691i
Yes
4 Blinks
5 Blinks
7 Blinks
9 Blinks
Image
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 (P1) or LVPS unit (con1) disconnected
• Lamp failure (Lamp is broken, damaged, or burst)
• Connector CN340 of Fan disconnected
•Power fan
LAMP：1 Blinks
• Connector CN344 of Fan disconnected
Y
•
Lamp fan
LAMP：2 Blinks
• Connector CN2 (MIS PWB) of Fan disconnected
•
Blower fan
LAMP：3 Blinks
•Lamp Cover or thermostat Ass'y is not attached.
Y
•Switch (CN343) is open malfunction
Lamp does not light ： No lighting operation sound (ignition sound) exists.
Y
• Flexible cable of Color Wheel Ass'y is disconnected (CN373) 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 MIS PWB (CN1) MIAN BOARD (CN371) is disconnected
or broken.
No
malfunction
malfunction
malfunction
Delta____________
2010/01/11