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49
Troubleshooting
Symptom
Power is not on. 18
46
The projection lamp does not light. 46
48
44
46
No image is displayed. 26
19, 25
35
21
21
The image is distorted. 18
33
The image is blurred. 27
17
33
The image is flickering. 35
14
The image is out of alignment. 35
The color is out of alignment. 35
No sound. 37
The cabinet produces a cracking sound.
-
The ALARM LED lights up or blinks.
44
48
The LAMP LED blinks (red). 46
The power indicator LED blinks. 48
The remote controller does not work.
15
9, 10
9, 10
15
To be Checked
•Verify that the power cord is plugged in.
•Verify that the lamp unit cover is installed.
•Verify that the lamp has not blown.
•Verify that the air filter is installed.
•Verify the internal temperature. The lamp does not light due to a
protection control if the temperature is too high.
•Verify that the lamp usage time is less than 1000 hours.
•Verify the selection of the connected input.
•Verify that the cable for the connected device is appropriately
connected.
•Verify sure that Brightness or Contrast in the Image Adjustment
menu is not set to minimum.
•Verify that the resolution on the PC is correctly set.
•Verify the functions of the PC.
•Verify that the projector is placed properly.
• Keystone compensation may be applied.
• Check the focus.
• Make sure that the projection distance is within the focusing
distance.
• Keystone compensation may be applied.
• Adjust Phase in the Sync Adjustment menu.
• Perform the automatic sync adjustment by pressing the AUTO
SYNC button.
• Check the setting of the Sync Adjustment menu.
• Adjust Phase in the Sync Adjustment menu.
• Make sure that the setting in the Volume menu is not set to
minimum.
•A sound is produced when the cabinet slightly expands or contracts
due to the changes in the room temperature. This will not affect
projector performance.
• Follow the procedures for protection against overheating.
• Make sure that the air filter is not dirty.
• Make sure that the lamp usage time is not more than 950 hours.
• Make sure that the air filter is not disconnected.
• Make sure that the battery is not blown or worn.
• Make sure that other light from lighting, for example, is not entering
the remote control sensor.
• Make sure that the remote control sensor of the main unit is not
obstructed.
• Make sure that the projector is not installed near inverter-driven
equipment.
Page(s)
Troubleshooting
If you think a problem has occurred, check the following items before asking for a repair.