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17

5-1. Remove 4 optical mechanism unit fixing screws to detach the optical mechanism unit.
5-2. Remove the RC PWB unit.

6-1. Remove 1 photosensor PWB fixing screw to detach the photosensor PWB.
6-2. Remove 2 blower fan fixing screws to detach the blower fan.
6-3. Remove 4 DMD heatsink fixing screws to detach the DMD PWB unit and the DMD.

5-1

5-2

RC PWB Unit

Optical Mechanism Unit

6-1

6-2

6-3

Optical Mechanism Unit

Photosensor PWB Unit

DMD

DMD heatsink

DMD spring

Backer plate

DMD PWB Unit

DMD socket

Blower fan

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● Resetting the total lamp timer

When replacing the lamp, reset the total lamp timer in the procedure below.

■ The warning lights (power indicator, lamp indicator and temperature warning indicator) 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 standby mode. After the projector has entered standby mode, follow the procedures given
below.

Lamp
■ It is recommended that the lamp (sold separately) be replaced when the remaining lamp life becomes 5% or less,

or when you notice a significant deterioration in the picture and color quality. The lamp life (percentage) can be
checked with the on-screen display.

■ Purchase a replacement lamp of type AN-100LP from your place of purchase, nearest Sharp Authorized Projector

Dealer or Service Center.

When the remaining lamp life becomes 5% or less,   (yellow) and "Change The Lamp" will be
displayed on the screen. When the percentage becomes 0%, it will change to 

 (red), the lamp will

automatically turn off and then the projector will automatically enter 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 projector will
not turn on.

If the temperature inside the projector increases, due to blockage of the air vents, or the setting location,
"

" will illuminate in the lower left cor ner 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, and then the projec-
tor will enter standby mode. After "

" appears, be sure to perform the measures described on page

53.

Lamp indicator

Temperature warning indicator

Power indicator

Reset the lamp timer after replacing the lamp.

• Plug the power cord into the AC socket

of the projector.

• While simultaneously holding down

MENU, ENTER 

and 

" on the pro-

jector, press 

STANDBY/ON on the pro-

jector.

• "LAMP 0000H" is displayed, indicating

that the lamp timer is reset.

• 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 ex-
plode.

AC socket

ENTER button

MENU button

" button

STANDBY/ON
button

19

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

possible solutions above and then wait until the projector has cooled down completely before plug-
ging in the power cord and turning the power back on. (At least 10 minutes.)

• 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 illumi-
nate 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 cooling fan keeps the internal temperature of the projector constant and this function is con-

trolled automatically. The sound of the cooling fan may change during operation because the fan
speed may change and this is not a malfunction.

• Do not unplug the power cord after the projector has entered standby mode and while the cooling

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

Maintenance indicator

Problem

The internal
temperature is
abnormally
high.

The lamp does
not illuminate.

Time to change
the lamp.

The lamp does
not illuminate.

The power
indicator blinks
in red when the
projector is on.

Cause

• Blocked air intake

• Cooling fan

breakdown

• Internal circuit

failure

• Clogged air intake

• The lamp is shut

down abnormally.

• Remaining lamp life

becomes 5% or
less.

• Burnt-out lamp
• Lamp circuit failure

• The lamp unit cover

is open.

Possible Solution

• Relocate the projector to

an area with proper
ventilation.

• Take the projector to your

nearest Sharp Authorized
Projector Dealer or Service
Center for repair.

• Disconnect the power cord

from the AC outlet, and
then connect it again.

• Carefully replace the lamp.

• Take the projector to your

nearest Sharp Authorized
Projector Dealer or Service
Center for repair.

• Please exercise care when

replacing the lamp.

• Securely install the cover.

• If the power indicator blinks

in red even when the lamp
unit cover is securely
installed, contact your
nearest Sharp Authorized
Projector Dealer or Service
Center for advice.

Abnormal

Red on

(Standby)

Red on

Red on

(Standby)

Red

blinks

Tempera-

ture

warning

indicator

Lamp

indicator

Power

indicator

Normal

Off

Green on

(Green

blinks

when the

lamp is

warming

up or

turning

off.)

Green on/

Red on

Green

blinks

(Cooling)

20

Item

Function

Lamp

Light source. DC high-pressure mercury lamp.

UV/IR cut filter (UV GLASS)

Filters out harmful UV and IR rays from the lamp.

Color wheel

Splits light from the light source into R, G, B and W through a color filter.

Rod (ROD INTEGRATOR)

Assures uniform light ray.

Illumination lens

Focus light from the rod on DMD.

Reflection mirror

Reflects light from the illumination lenses toward DMD.

Condencer Lens

Condenses the light from the reflection mirror to the DMD and the pupil of the

projection lens.

DMD

Turns the internal micromirror ON/OFF at the rate of color component of each dot

of the input source to reflect light.

Projection lens

Enlarges light from DMD and projects it on a screen.

DMD

Plastic Lens

Rod Integrator

Lamp

Reflection

mirror

Color wheel

Illumination lens 2

Projection lens

Illumination lens 1

UV Glass

(PLASTIC LENS)

(ILLUMINATION LENS 1, 2)