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INF-23
SECTION 1 SERVICE INFORMATION
6. Troubleshooting
6. 1. Shutdown system
This projector provides the shutdown function to set into the standby mode immediately for product safety when the projector
has the fan operation error or lamp lightning error.
LED indication status
Shutdown detection
Probable cause
OSD warning
Not lighting or flashing
Power supply block
Fuse : Rated 8A
Blown out of fuse(with another reason)
Disconnecting the connectors
Power board failure
Ballast board failure
–
Thermal fuse
a Over 113ºC
Blown out of thermal fuse (with another reason)
Check usage environment
Disconnecting the thermal fuse
–
Sub-microprocessor communication error Sub-microprocessor failure
Disconnection the communication lines
–
ON(G)/STANDBY(R) LED
blinks
(0.25 seconds cycle)
FPGA initializing error or communication
error
Failure on signal processing part
–
Main software activation error
Main microprocessor writing error
–
LAMP LED lights
Lamp runtime
a More than 5000 hours
(Shutdown in 10 minutes)
Lamp runtime is over
“REPLACE LAMP IN ** MIN-
UTES, POWER WILL TURN OFF
AND GO INTO STANDBY MODE
AUTOMATICALLY.”
LAMP LED blinks
(0.5 seconds cycle)
Lamp igniting error/Lamp goes off
Lamp cover not installed
Disconnecting the connectors
Lamp error/burning
Ballast block error
–
TEMP LED lights
Temperature exceeds a threshold (*1)
Temperature error
–
Sum of the fan voltage level and filter
clogged level (*2)
Filter clogged
–
TEMP LED blinks
(2 seconds cycle)
No fan sense signal
Each fan sense signal level
a
a
The signal is less than 50% of target
level for more than 5 seconds
Disconnecting the connectors
Fan rotation error/ abnormal
Fan control circuit on the main bard has error.
–
Power supply error
Disconnecting the connectors
Board error
–
*1 It depends on the lamp mode , fan mode or installed environment.
*2 It depends on the various levels of the filter clogged and fan voltage.
The count down number 10 to 1
will be indicated in **.
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