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12. Troubleshooting
12.2 Images are not displayed correctly
Overview
Problem
Projected images are shaking.
Projected images are
displaced.
The edge of the projected
images is not displayed.
Projected images are distorted. Adjust the projector and the screen so that they are perpendicular to each other.
Projected images are dark.
Projected images are blurred.
White dots are seen on
projected images.
Black dots are seen on
projected images.
Rainbow effect is seen on
projected images.
Fine streaks are seen on
projected images.
Projected images become
wavy.
Hue is not appropriate.
Tint in projected images is
incorrect.
Different color tint.
104
Solution
•
Check that the cable connected to the external device isn't intermittent.
•
Connect the cable's plug with the external device's connector firmly.
•
Project an image containing many characters such as a help menu and execute AUTO
POSITION.
•
Some computers output out-of-spec signals on rare occasion. Adjust the SIGNAL menu.
•
Check whether there is a wind that blows the exhausted air from the projector to the
direction of the projection lens.
•
Adjust BRIGHTNESS and CONTRAST in the IMAGE menu.
•
Replace the lamp.
•
Decrease the temperature when the ambient temperature is high and the warning is
displayed.
•
Adjust the focus.
•
Clean the lens.
•
Adjust FINE SYNC. in the SIGNAL menu to eliminate flicker.
•
Adjust TRACKING and FINE SYNC. in the SIGNAL menu.
•
Adjust BRIGHTNESS and CONTRAST in the IMAGE menu.
•
Adjust the projector and the screen so that they are perpendicular to each other.
This symptom is normal for a DLP® projector and is not a malfunction. (A very small number
of pixels may stay lit or out, but such symptom is not a malfunction. Pixels of 99.99% or
more are effective.)
This is due to color breaking noise that occurs in a DLP® system and is not a malfunction.
•
This is due to interference with the screen surface and is not a malfunction. Replace
the screen or displace the focus a little.
•
Vertical or horizontal streak noise may appear on the projected image, depending on the
type of the DVD player or game console you use. In such a case, you can reduce such
streak noise by enabling the LPF.
•
Connect the plugs of the cables to external devices securely.
•
Keep the projector away from devices that emit interfering radio waves.
•
When the keystone adjustment is carried out, the image may not be displayed correctly
depending on the type of input signal. This isn't a product malfunction. In this case,
readjust the keystone so that the amount of keystone correction is as small as possible.
•
If RGB/YCbCr output setting on the external device does not match with COMPUTER
INPUT setting in the SIGNAL menu on the projector, the entire screen may become
reddish or greenish.
•
If the setting of COMPUTER INPUT in the SIGNAL menu is inconsistent with the RGB/
YCbCr output setting of the external device even when the input source is other than
COMPUTER (for example, when the input source is HDMI), the entire image appears
reddish or greenish.
→ Check that COMPUTER INPUT in the SIGNAL menu is set correctly.
•
Check that the cables connected to the external devices are not broken.
•
Check that COMPUTER INPUT in the SIGNAL menu is correctly set.
•
Check that the cable connected to the external device isn't broken.
•
When comparing images projected by two projectors, tints in the displayed images may be
different because of variation between their optical components. This is not a malfunction.
•
When comparing the image projected by this projector with those displayed on the
television or PC monitor, tints in the displayed images may be different because of
difference in the range of color reproducibility. This is not a malfunction.
R5905597 PHXX SERIES 20/05/2014
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