15
Problem Check Sheets
If your projector develops a problem, make a copy of these check sheets and use
them to explain the problem symptoms more clearly when calling for service.
Menus
Problems
Only part of the image is displayed
Image is smaller than size of screen
Image has keystone distortion
Several pixels are missing
Image is truncated or small
Image is blurry and out of focus
Image contains striped patterns
Image flickers
Characters appear to be missing
Image quality is poor
Too dark
Color is poor or too dark (video)
Color is poor or too dark (computer)
Color different from TV/CRT
Menus appear
Setting Sleep Mode : ON
About (Video)
Lamp h
Video Signal
About (Computer)
Lamp h
Frequency H Hz
V Hz
SYNC Polarity H
V
SYNC Mode
Resolution
Refresh Rate Hz
AUTO
NTSC
Other
Color is poor or too dark
Menus
No sound is heard
Volume is low
Sound is distorted
Wrong sound is heard
Has the connected equipment been set
to output audio?
Does the sound come out when
external speakers are connected?
(if equipped with an Audio Out port)
Audio (only models with built-in speaker)
Positive
Negative
Positive
Negative
Separate
Composite
Sync on
Green
Power does not turn on
Nothing appears on the screen
A message appears
No image signal is being input
These signals cannot be handled by
this projector.
Blue screen (blue background)
Black screen (black background)
Projected images
User's logo (no message appears)
Menus appear
Audio
Audio input ( )
Volume ( )
