PG-M20X (serv.man27). Appendix - Sharp Projector User Guide / Operation Manual. Page 4

• If the TEMPERATURE WARNING indicator illuminates, and the power turns off, follow the above possible

solutions and then wait until the projector has cooled down completely before plugging in the power cord and
turning the power back on. (At least 5 minutes.)

• If the power is turned off and then turned on again, as during a brief test, the LAMP REPLACEMENT indica-

tor may be triggered, preventing the power from going on. Should this occur, take the power cord out of the
wall outlet and plug it back in again.

• If you want to clean the air vents during projector operation, be sure to first press 

 and after the power has

turned off and the cooling fan has stopped, then clean the vents.

• Do not unplug the power cord after the power has been turned off and while the cooling fan is running. The

cooling fan runs for about 90 seconds.

If the temperature inside the projector in-
creases, due to blockage of the air vents, or
the setting location, “

” will blink in the

lower left corner of the picture. If the tem-
perature keeps on rising, the lamp will turn
off and the TEMPERATURE WARNING in-
dicator will blink, the cooling fan will run for
further 90 seconds, then the power will be
shut off. After “

” appears, be sure to

perform the following measures.

■ The warning lights on the projector indicate problems inside the projector.

■ If a problem occurs, either the TEMPERATURE WARNING indicator or the LAMP REPLACEMENT

■ When the lamp

exceeds 1,900 cumulative hours
of use, “

” will be displayed

on the screen in yellow. When
the cumulative hours of use
reach 2,000, “

” will

change to red, the lamp will au-
tomatically turn off and then the
projector as well. At this time, the
LAMP REPLACEMENT indica-
tor will illuminate in red.

■ If you try to turn on the projector

a fourth time without replacing
the lamp, the projector will not
turn on.

Maintenance indicator

Condition

Problem

Possible Solution

TEMPERA-

TURE

WARNING

indicator

Normal

Abnormal

Off

Red on/
Power off

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 Projector Dealer
or Service Center (see page 

for repair.

LAMP

REPLACE-

MENT

indicator

Red on/
Power off

The lamp does
not illuminate.

• Burnt-out lamp

• Lamp circuit failure

• Take the projector to your nearest

Sharp Authorized Projector Dealer
or Service Center (see page 

for repair or lamp replacement.

• Please exercise care when

replacing the lamp.

Green on

Green

blinks

when the

lamp is

active.

Red
blinks

Time to change
the lamp

• Lamp usage time

exceeded 1,900
hours

TEMPERATURE
WARNING
indicator

LAMP
REPLACEMENT
indicator

POWER

indicator