Sharp DT-300 - Manual (Page 59)

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Maintenance Indicators
■ The warning lights on the projector indicate problems inside the projector.
■ If a problem occurs, either the temperature warning indicator or the lamp indicator will illuminate
red, and the projector will enter the standby mode. After the projector has entered the standby
mode, follow the procedures given below.
TEMPERATURE
WARNING
indicator POWER
indicator LAMP
indicator
TEMP. LAMP POWER
About the temperature warning indicator
If the temperature inside the
projector increases, due to
blockage of the air vents, or the
setting location, “ ” will
illuminate in the lower left corner of the picture. If
the temperature keeps on rising, the lamp will turn off
and the temperature warning indicator will blink, the
cooling fan will run for a further 90 seconds, and then
the projector will enter the standby mode. After
“ ” appears, be sure to perform the following
measures.
About the lamp indicator
■ The lamp life becomes 0%, when used
for approximately 4,000 hours with “Eco
mode” or when used for approximately
3,000 hours with “Standard mode” (see
page 53).
■ When the remaining lamp life becomes
5% or less, “ ” (yellow) will be displayed
on the screen. When the percentage be-
comes 0%, “
” will change to “ ” (red),
the lamp will automatically turn off and
then the projector will automatically en-
ter the standby mode. At this time, the
lamp indicator will illuminate in red.
■ If you try to turn on the projector a fourth
time without replacing the lamp, the pro-
jector will not turn on.
Maintenance indicator
Condition Problem Possible Solution
Temperature
warning
indicator
Normal Abnormal
Off
Red on/
Standby
The internal
temperature is
abnormally high.
Abnormal
• Blocked air intake • Relocate the projector to an area
with proper ventilation.
• Cooling fan break-
down
• Internal circuit failure
• Clogged air intake
• Take the projector to your nearest
Sharp Authorized Service Center
or Dealer for repair.
Lamp
indicator
Red on/
Standby The lamp does
not illuminate. • Burnt-out lamp
• Lamp circuit failure
• Carefully replace the lamp. (See
page 59.)
• Take the projector to your nearest
Sharp Authorized Service Center
or Dealer for repair.
• Please exercise care when
replacing the lamp.
Red on
Time to change
the lamp.
• Remaining lamp life
becomes 5% or less.
Power
indicator
The power is
not turned on. • The lamp unit cover
is open.
• Securely install the cover.
• If the power is not turned on even
when the lamp unit cover is
securely installed, contact your
nearest Sharp Authorized Service
Center or Dealer for advice. Green on/
Red on
Off
Green on
Green blinks
when the
lamp is
warming up.
03.10.29, 2:47 PM Page 58