Sharp PG-M20S (serv.man32) User Manual / Operation Manual ▷ View online
Appendix
-69
Cleaning the lens
■ Use a commercially available blower or lens
cleaning paper (for glasses and camera lenses)
for cleaning the lens. Do not use any liquid type
cleaning agents, as they may wear off the coat-
ing film on the surface of the lens.
for cleaning the lens. Do not use any liquid type
cleaning agents, as they may wear off the coat-
ing film on the surface of the lens.
■ As the surface of the lens can easily get dam-
aged, be sure not to scrape or hit the lens.
Cleaning the exhaust and intake vents
■ Use a vacuum cleaner to clean dust from the
exhaust vent and the intake vent.
Cleaning
Paper
Maintenance
Cleaning the projector
■ Be sure to unplug the power cord before clean-
ing the projector.
■ The cabinet as well as the operation panel is
made of plastic. Avoid using benzene or thinner,
as these can damage the finish on the cabinet.
as these can damage the finish on the cabinet.
■ Do not use volatile agents such as insecticides
on the projector.
Do not attach rubber or plastic items on the pro-
jector for long time.
Do not attach rubber or plastic items on the pro-
jector for long time.
The effects of some of the agents in the plastic
may cause damage to the quality or finish of the
projector.
projector.
■ Wipe off dirt gently with a soft flannel cloth.
■ When the dirt is hard to remove, soak a cloth in a
neutral detergent diluted with water, wring the
cloth well and then wipe the projector.
Strong cleaning detergents may discolor, warp
or damage the coating on the projector.
Make sure to test on a small, inconspicuous area
on the projector before using.
cloth well and then wipe the projector.
Strong cleaning detergents may discolor, warp
or damage the coating on the projector.
Make sure to test on a small, inconspicuous area
on the projector before using.
Projector’s Rear View
Wax
Thinner
Neutral detergent
diluted with water
diluted with water
N
eu
tr
al d
ete
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en
t
-70
Maintenance Indicators
Info
•
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.)
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.
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.
cooling fan runs for about 90 seconds.
About the TEMPERATURE WARNING indicator
If the temperature inside the projector in-
creases, due to blockage of the air vents, or
the setting location, “
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 “
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
indicator will illuminate red, and the power will turn off. After the power has been turned off, follow
the procedures given below.
the procedures given below.
About the
LAMP
REPLACEMENT
indicator
LAMP
REPLACEMENT
indicator
■ When the lamp
exceeds 1,900 cumulative hours
of use, “
of use, “
” will be displayed
on the screen in yellow. When
the cumulative hours of use
reach 2,000, “
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.
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.
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
Power off
The internal
temperature is
abnormally high.
temperature is
abnormally high.
Abnormal
•
Blocked air intake
•
Relocate the projector to an area
with proper ventilation.
with proper ventilation.
•
Cooling fan break-
down
down
•
Internal circuit failure
•
Clogged air intake
•
Take the projector to your nearest
Sharp Authorized Projector Dealer
or Service Center (see page
Sharp Authorized Projector Dealer
or Service Center (see page
78
)
for repair.
LAMP
REPLACE-
MENT
indicator
Red on/
Power off
Power off
The lamp does
not illuminate.
not illuminate.
•
Burnt-out lamp
•
Lamp circuit failure
•
Take the projector to your nearest
Sharp Authorized Projector Dealer
or Service Center (see page
Sharp Authorized Projector Dealer
or Service Center (see page
78
)
for repair or lamp replacement.
•
Please exercise care when
replacing the lamp.
replacing the lamp.
Green on
Green
blinks
when the
lamp is
active.
Red
blinks
blinks
Time to change
the lamp
the lamp
•
Lamp usage time
exceeded 1,900
hours
exceeded 1,900
hours
TEMPERATURE
WARNING
indicator
WARNING
indicator
LAMP
REPLACEMENT
indicator
REPLACEMENT
indicator
POWER
indicator
Appendix
-71
Lamp
■ It is recommended that the lamp (sold separately) be replaced after approximately 1,900 cumulative
hours of use or when you notice a significant deterioration of the picture and color quality. The lamp
usage time can be checked with the on-screen display. See page
usage time can be checked with the on-screen display. See page
58
.
■ For lamp replacement, please consult your nearest Sharp Authorized Projector Dealer or Service
Center.
IMPORTANT NOTE TO U.S. CUSTOMERS:
The lamp included with this projector is backed by a 90-day parts and labor limited warranty. All service
of this projector under warranty, including lamp replacement, must be obtained through a Sharp Autho-
rized Projector Dealer or Service Center. For the name of the nearest Sharp Authorized Projector Dealer
or Service Center, please call toll-free: 1-888-GO-SHARP (1-888-467-4277).
The lamp included with this projector is backed by a 90-day parts and labor limited warranty. All service
of this projector under warranty, including lamp replacement, must be obtained through a Sharp Autho-
rized Projector Dealer or Service Center. For the name of the nearest Sharp Authorized Projector Dealer
or Service Center, please call toll-free: 1-888-GO-SHARP (1-888-467-4277).
U.S.A. ONLY
Caution Concerning the Lamp
■ This projector utilizes a pressurized mercury lamp. A loud sound may indicate lamp failure. Lamp
failure can be attributed to numerous sources such as: excessive shock, improper cooling, surface
scratches or deterioration of the lamp due to a lapse of usage time. The period of time up to failure
largely varies depending on the individual lamp and/or the condition and the frequency of use. It is
important to note that failure can often result in the bulb cracking.
scratches or deterioration of the lamp due to a lapse of usage time. The period of time up to failure
largely varies depending on the individual lamp and/or the condition and the frequency of use. It is
important to note that failure can often result in the bulb cracking.
■ When the LAMP REPLACEMENT indicator and on-screen display icon are illuminated or flash, it is
recommended that the lamp be replaced with a new one immediately, even if the lamp appears to be
operating normally.
operating normally.
■ Should the lamp break, the glass particles may spread inside the lamp cage or gas contained in the
lamp may be vented into the room from the exhaust vent. Because the gas in this lamp includes
mercury, ventilate the room well if the lamp breaks and avoid all exposure to the released gas. In
case of exposure to the gas, consult with a doctor as soon as possible.
mercury, ventilate the room well if the lamp breaks and avoid all exposure to the released gas. In
case of exposure to the gas, consult with a doctor as soon as possible.
■ Should the lamp break, there is also a possibility that glass particles may spread inside of the
projector. In such a case, it is recommended you contact your nearest Sharp Authorized Projector
Dealer or Service Center to remove the damaged lamp and assure safe operation.
Dealer or Service Center to remove the damaged lamp and assure safe operation.
Replacing the Lamp
Caution
•
Do not remove the lamp unit immediately after operation of the projector. The lamp will be hot and touching
it can lead to burn or injury.
it can lead to burn or injury.
•
Wait at least one hour after the power cord is disconnected to allow the surface of the lamp unit to fully cool
before removing the lamp unit.
before removing the lamp unit.
■ If the new lamp does not light after replacement, take your projector to the nearest Sharp Autho-
rized Projector Dealer or Service Center for repair. Purchase a replacement lamp unit of type BQC-
PGM20X//1 from your nearest Sharp Authorized Projector Dealer or Service Center. Then carefully
change the lamp by following the instructions described in this section. If you wish, you may have
the lamp replaced at your nearest Sharp Authorized Projector Dealer or Service Center.
PGM20X//1 from your nearest Sharp Authorized Projector Dealer or Service Center. Then carefully
change the lamp by following the instructions described in this section. If you wish, you may have
the lamp replaced at your nearest Sharp Authorized Projector Dealer or Service Center.
Regarding the Lamp
POWER button
Regarding the Lamp (cont.)
Removing and Install-
ing the Lamp Unit
ing the Lamp Unit
Info
•
Be sure to remove the lamp unit by the
handle. Be sure not to touch the glass
surface of the lamp unit or the inside of
the projector.
handle. Be sure not to touch the glass
surface of the lamp unit or the inside of
the projector.
•
To avoid injury to yourself and damage
to the lamp, be sure to carefully follow
the steps below.
to the lamp, be sure to carefully follow
the steps below.
•
Do not loosen other screws except for the
lamp unit cover and lamp unit.
lamp unit cover and lamp unit.
•
Please refer to the installation manual
included with the lamp unit.
included with the lamp unit.
1
Press
on the projector to
turn off the power.
•
Wait until the cooling fan stops.
2
Disconnect the power cord.
•
Unplug the power cord from the AC
socket.
socket.
•
Leave the lamp until it has fully cooled
down (about 1 hour).
down (about 1 hour).
3
Remove the lamp unit cover.
•
Turn over the projector, and loosen the
user service screw that secures the
lamp unit cover. Then slide the cover
in the direction of the arrow.
user service screw that secures the
lamp unit cover. Then slide the cover
in the direction of the arrow.
Lamp
unit
unit
BQC-PGM20X//1
AC socket
User service screw
-72
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