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E-52
Maintenance &
Troubleshooting
Check
• Keylock level is set to “Level A” or “Level B”, preventing operation of some or all buttons (See page
43.)
• Projector power cord is not plugged into the wall outlet.
• The bottom filter cover is not securely installed.
• Selected input is wrong. (See page 19.)
• Cables incorrectly connected to rear panel of the projector. (See pages 13–17.)
• Remote control batteries have run down. (See page 10.)
• Remote control’s MOUSE/ADJUSTMENT switch is set to MOUSE.
• Cables incorrectly connected to rear panel of the projector. (See pages 13–17.)
•“Contrast” and “Bright” adjustments are set to minimum position. (See page 28.)
• On-screen Display (“BLACK SCREEN”) is turned off and Black Screen function is turned on,
creating a black image. (See page 39.)
•“Color” and “Tint” adjustments are not correct. (See page 28.)
• Adjust the focus. (See page 19.)
• Projection distance is too long or too short to allow for proper focus. (See page 20.)
• Cables incorrectly connected to rear panel of the projector. (See pages 13–17.)
• Volume is set to minimum. (See page 19.)
• If the picture is normal, the sound is due to cabinet shrinkage caused by temperature changes.
This will not affect operation or performance.
• Refer to “Lamp/Maintenance Indicators” on page 49.
• Adjust the “Phase” setting. (See page 31.)
• Set the resolution mode to 480P. (See page 33.)
• Change the input system mode. (See page 29.)
Problem
Power cannot be turned on or off
using the POWER buttons (ON/
OFF) on the projector.
No picture and no sound.
Sound is heard but no picture
appears.
Color is faded or poor.
Picture is blurred.
Picture appears but no sound is
heard.
An unusual sound is occasionally
heard from the cabinet.
Maintenance indicator illuminates.
Picture noise appears.
480P images do not appear.
Color is distorted (except for
INPUT 3 (VIDEO) and INPUT 4 (S-
VIDEO) mode).
Using the Kensington Lock
This projector has a Kensington Security Standard
connector for use with a Kensington MicroSaver Security
System. Refer to the information that came with the
system for instructions on how to use it to secure the
projector.
Troubleshooting
Kensington Security
Standard connector