76
Troubleshooting
Phenomena that may be easily mistaken for machine defects (continued)
• Although bright spots or dark spots may appear on the screen, this
is a unique characteristic of liquid crystal displays, and it does not constitute or
imply a machine defect.
NOTE
Phenomenon Cases not involving a machine defect
Reference
page
Video screen
display freezes.
The FREEZE function is working.
Press the
FREEZE button to restore the screen to normal.
23
Colors have a
faded- out
appearance,
or
Color tone is
poor.
Color settings are not correctly adjusted.
Perform picture adjustments by changing the COLOR TEMP,
COLOR, TINT and/or COLOR SPACE settings, using the
menu functions.
28, 30,
34
COLOR SPACE setting is not suitable.
Change the COLOR SPACE setting to AUTO, RGB,
SMPTE240, REC709 or REC601.
34
Pictures
appear dark.
The brightness and/or contrast are adjusted to an
extremely low level.
Adjust BRIGHTNESS and/or CONTRAST settings to a higher
level using the menu function.
28
The WHISPER function is working.
Select NORMAL for the WHISPER item in the SETUP Menu.
28, 40
The lamp is approaching the end of its product lifetime.
Replace the lamp.
66, 67
Pictures
appear
blurry.
Either the focus and/or horizontal phase settings are not
properly adjusted.
Adjust the focus using the focus ring, and/or H PHASE using
the menu function.
20, 33
The lens is dirty or misty.
Clean the lens referring to the section “Caring for the lens”.
70
Some kind
of image
degradation
such as
ickering or
stripes appear
on the screen.
The OVER SCAN ratio is too big.
Adjust OVER SCAN in the IMAGE menu smaller.
32
Excessive VIDEO NR.
Change the setting of VIDEO NR in the INPUT menu.
34
The FRAME LOCK function cannot work on the current
input signal.
Set FRAME LOCK in the INPUT menu to OFF.
36
Pictures are
trembling.
The exhaust ventilation holes at front is blocked by some
objects.
Remove any objects from front side of the projector.
4
The picture is
distorted or shifted.
The shape of picture is not corrected appropriately.
Use the keystone correction or PERFECT FIT function.
21, 22
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