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Appendix

Info

• If the temperature warning indicator illuminates and the projector enters the standby mode, ensure the 

exhaust and intake vents are not blocked (page 

6) and then try turning the power back on. Wait until the 

projector has cooled down completely (at least 10 minutes) before plugging in the power cord and turning 
the power back on. 

• If the power is turned off for a brief moment due to power outage or some other cause while using the 

projector, and the power supply recovers immediately after that, the lamp indicator will illuminate in red 
and the lamp may not be lit. In this case, unplug the power cord from the AC outlet, replace the power 
cord in the AC outlet and then turn the power on again.

• The speed and pitch of the cooling fan may change during operation in response to internal temperature 

changes. This is normal operation and does not indicate a malfunction.

• Do not unplug the power cord immediately after the projector has entered the standby mode or while the 

cooling fan is running. The cooling fan runs for about 90 seconds.

Cleaning the projector

■  Be sure to unplug the power cord before cleaning the 

projector.

■  The cabinet as well as the operation panel is made of 

plastic. Avoid using benzene or thinner, as these can 
damage the fi nish on the cabinet.

■  Do not use volatile agents such as insecticides on the 

projector.

 

Do not attach rubber or plastic items to the projector for 
long periods.

 

The effects of some of the agents in the plastic may 
cause damage to the quality or fi nish of the projector.

■  Wipe off dirt gently with a soft fl annel cloth.

■  When the dirt is hard to remove, soak a cloth in a mild 

detergent diluted with water, wring the cloth well and 
then wipe the projector.

 

Strong cleaning detergents may discolor, warp or dam-
age the coating on the projector. Make sure to test on a 
small, inconspicuous area on the projector before use.

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 coating fi lm on the surface of the 
lens.

■  As the surface of the lens can easily get damaged, 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.

■  The exhaust and intake vents should be cleaned every 

100 hours of use. Clean the vents more often when the 
projector is used in a dirty or smoky location.

Info

• If you want to clean the exhaust and intake vents 

during projector operation, be sure to press 
STANDBY on the projector or 

STANDBY on 

the remote control and put the projector into 
standby mode. After the cooling fan has stopped, 
clean the vents.

Mild detergent

diluted with water

Wax

Mild deter

gent

Thinner

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Regarding the Lamp

Lamp

■  It is recommended that the lamp be replaced with a new one (sold separately) when the remaining 

lamp life becomes 5% or less, or when you notice a signifi cant deterioration in the picture and color 

quality. The lamp life (percentage) can be checked with the on-screen display. (See page 43.)

■  Purchase a replacement lamp of type AN-K20LP from your place of purchase, nearest Sharp Autho-

rized Service Center or Dealer.

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.

■  When the lamp replacement indicator and on-screen display icon are illuminated, it is recommended 

that the lamp be replaced with a new one immediately, even if the lamp appears to be 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 mer-

cury, ventilate the room well if the lamp breaks and avoid all exposure to the released gas. In case of 

exposure to the gas, consult a doctor as soon as possible.

■  Should the lamp break, there is also a possibility that glass particles may spread inside of the projec-

tor. In such a case, it is recommended you contact your nearest Sharp Authorized Service Center or 

Dealer to assure safe operation.

Replacing the Lamp

Caution

• Do not remove the lamp unit from the projector right after use. The lamp will be very hot and may cause 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.

■  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 Service Center or Dealer.

* If the new lamp does not light after replacement, take your projector to the nearest Sharp Authorized Service 

Center or Dealer for repair.

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Appendix

Info

• Be sure to remove the lamp unit by the han-

dle. 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.

• Do not loosen other screws than for the lamp 

unit cover and lamp unit.

  (As for the lamp unit, only the silver screws 

are loosened.)

1

 Press  STANDBY on the pro-

jector or  STANDBY on the re-

mote control to put the projector 

into the standby mode.

• Wait until the cooling fan stops.

2

  Disconnect the power cord.

• Unplug the power cord from the AC 

socket.

• Leave the lamp until it has fully cooled 

down (about 1 hour).

3

  Remove the lamp unit cover.

• Loosen the user service screws that 

secure the lamp unit cover. Then open 
the cover in the direction of the arrow.

4

  Remove the lamp unit.

• Loosen the securing screws from the 

lamp unit. Hold the lamp unit by the 
handle and pull it in the direction of the 
arrow.

Removing and Installing the Lamp Unit

Warning!

 

• The lamp unit becomes very hot while the projector is operating. Do not remove the lamp 

unit from the projector right after use. The lamp and parts around the lamp will be very hot 
and may cause burns or injury.

Lamp unit
(Type: AN-K20LP)

Optional 
accessory

STANDBY button

STANDBY

User service screws

Lamp unit

Lamp unit cover

Securing screw

Securing screws

Handle

AC socket

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5

  Insert the new lamp unit.

• Press the lamp unit fi rmly into the lamp 

unit compartment. Fasten the securing 
screws.

6

  Attach the lamp unit cover.

• Close the lamp unit cover in the direc-

tion of the arrow. Then tighten the user 
service screws.

Info

• If the lamp unit and lamp unit cover are not 

correctly installed, the power will not turn on, 
even if the power cord is connected to the 
projector.

Resetting the Lamp Timer

Reset the lamp timer after replacing the lamp.

Info

• Make sure to reset the lamp timer only when 

replacing the lamp. If you reset the lamp timer 
and continue to use the same lamp, this 
may cause the lamp to become damaged 
or explode.

1

  Connect the power cord.

• Plug the power cord into the AC socket 

of the projector.

2

  Reset the lamp timer.

• While holding down  ENTER, " and 

| on the projector, press 

ON on the 

projector.

• “LAMP 0000H” is displayed, indicating 

that the lamp timer is reset.

1

2

ENTER button

ON button

Regarding the Lamp (Continued)

Securing screws

AC socket

User service screws

Adjustment button"

Adjustment button|

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