Projected
image
is
dark
Check
Action
Refer
to
Is
the
lamp
near
exhaustion?
Check
the
lamp
time
in
the
“Information”
menu.
Prepare
a
new
lamp
unit
or
replace
as
soon
as
possible
when
the
lamp
is
near
exhaustion.
p.
62
p.
63
Is
the
image
quality
correctly
adjusted? Adjust
“Picture
Adjust”
and
“Lens
Aperture”
accordingly. p.
37
p.
50
Power
is
cut
off
suddenly
Check
Action
Refer
to
Has
“Off
Timer”
been
configured?
Set
“Off
Timer”
to
“Off”.
p.
60
Has
“ECO
Mode”
been
configured?
Set
“ECO
Mode”
to
“Off”.
p.
60
The
lens
cover
does
not
close
Check
Action
Refer
to
Is
“Lens
Cover”
set
to
“Open”?
Set
“Lens
Cover”
under
“Lens
Control”
in
the
setting
menu
to
“Auto”.
p.
53
The
internal
cooling
fan
emits
a
loud
noise
Check
Action
Refer
to
Is
the
exhaust
vent
blocked?
Is
the
unit
used
near
a
heater
or
air
conditioner?
Check
the
condition
of
installation.
p.
19
There
are
small
black
or
colored
dots
on
the
screen
The
D
ILA
device
is
manufactured
using
high
precision
technologies,
but
there
may
be
some
(less
than
0.01%)
missing
pixels
or
pixels
that
remain
permanently
lit.
This
is
not
a
malfunction.
When
the
following
messages
appear...
Message
Description
Action
No Input
COMP.
No
device
is
connected
to
the
input
terminal
The
input
terminal
is
connected
but
there
is
no
signal
Input
the
video
signals.
COMP.
A
video
signal
that
cannot
be
used
with
this
unit
has
been
input
(The
names
of
input
terminals
such
as
“COMP.”
will
be
displayed
in
yellow).
Input
video
signals
that
can
be
used.
BACK
Back
Lamp replacement
This
message
is
displayed
when
the
accumulated
lamp
time
has
exceeded
2900
hours.
To
clear
the
message,
press
the
[BACK]
button.
Get
ready
a
new
lamp
unit
and
replace
as
soon
as
possible.
Reset
the
lamp
time
after
replacing
the
lamp.
(p.
63,
65)
69
Troubleshooting