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1. While holding down the “ENTER”, “ADJ.

"

” and “ADJ.

|

” keys on the set at the same time, turn on the POWER

ON key.

2. Now the total lamp timer is reset to zero. “0000H” appears on the screen.

The lamp in this projector operates for approximately 1,500 cumulative hours, depending on the usage environ-
ment. It is recommended that the lamp be replaced after 1,400 cumulative hours of ues 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.

· Blocked air intake.

· Cooling fan breakdown.
· Internal circuit failure.

· Burnt-out lamp.
· Lamp circuit failure.

· Relocate the projector to an area with

proper ventilation.

· Take the projector to your nearest Au-

thorized Sharp Industrial DLP Products
Dealer or Service Center for repair.

· Carefully replace the lamp.
· Take the projector to your nearest Au-

thorized Sharp Industrial DLP Products
Dealer or Service Center for repair.

TEMPERATURE
WARNING indicator

LAMP REPLACE-
MENT indicator

IrCOM

AUTO SYNC

GAMMA

FREEZE

UNDO

MENU

LENS

MUTE

VOLUME

ON

OFF

INPUT

ENTER

TEMP.

LAMP

POWER

RESIZE

ENLARGE

ENTER ADJ.

"

ADJ.

|

The internal
temperature is
abnormally high.

The lamp does
not light up.

»

Intense light hazard. Do not attempt to look into the aperture and lens while the projector is operating.

»

As the usage environment can vary significantly, the projector lamp may not operate for 1,500 hours.

Not needed.

Not needed.

Not needed.

Not needed.

Phillips screwdriver, red gradation pattern signal.

Enter the red gradation pattern from RGB1. Make sure the pattern
appears normal on screen.
If not, loosen the wheel sensor screw and move the sensor up and
down until the gradation appears crisp on screen. (White lines and
magenta portions are not allowed.)

Note: Never peel off the sensing seal and

balancer from around the motor.

Black

Red

Black

Gradation pattern

White lines

Magenta

Red

Red

Red

Color Wheel

Sensing Seal

Balancer

Wheel Sensor Screw

Lens

The DMD is one of the ultra-micro electromechanical

systems called MEMS (Microeletromechanical System).

The DMD can be fabricated by employing the existing

0.8 micron rule, which is the established semiconduc-

tor manufacturing technology.

The DMD is an optical switch of semiconductor chip

fabricated by connecting several hundred thousand to

one million and several hundred thousand mirrors

(16µm X 16µm in size) onto the CMOS SRAM

semiconductor memory and these mirrors rotate

mechanically when digital electric signal is received.

In the DMD, the mirror rotates at an angle of ±10

degrees by the action of electrostatic field produced by

voltage which is generated on the SRAM memory. The

rotation of this mirror changes the direction of reflected

light, the principle of which is applied for the optical

switch. The gray scale (or color gradation) of reflected

light is achieved by controlling the response time (or

ON-time) of the mirror with digital signal (8-bit pulse

width modulation [PWM] signal) (Processing with 10-

bit PWM signal is now also available).

The gray scale has 256 tones. Hence, the total nµmber

of tones for RGB full primary colors counts as many as

256 X 256 X 256 = 16,700,000.

Figure 3. shows an exploded view of the DMD pixel.

The DMD monolithically consists of the four layers;

mirror, yoke and hinge, metal-3, and CMOS memory.

The mirror is made of 16 µm X 16 µm alµminµm plate.

The mirror is rigidly connected to the yoke below. The

yoke, in turn, is connected by two thin mechanically

compliant torsion hinges to the posts that are attached

to the PWB below. The address electrodes for the mirror

and yoke are connected to the complementary sides

of the PWB below. The yoke and mirror are connected

to the bias-reset bus formed on the metal-3 layer. The

bias-reset bus interconnects the yoke and mirrors of

each pixel to the bond pad around the chip.

When the digital signals [1] and [0] are written on the

CMOS SRAM, the mirror supported by the posts

inclines diagonally toward the PWB side. The angle of

inclination is ±10 degrees.

2

3

4

5

6

7

8

9

10

11

12

Mirror

(Layers)

Mirror

Torsion Hinge

Yoke

Yoke
and Hinge

Via 2 Contact
    to CMOS

Metal-3

Landing
Site

CMOS
Memory

Landing Tip

Mirror

Address

Electrode

Yoke

Address

Electrode

Bias-Reset

Bus

About 500,000 micro mirrors are found at the
central white part.

Mirrors (each one of squares).
Area of a mirror is 16 µm X 16 µm. The space
between adjacent mirrors is 1 µm.

* DMD and DLP are the trademarks of Texas Instruments, Inc., U.S.A.

The mirror reflects light in one of two directions,

depending of the state of underlying memory cell. The

mirror rotates by a force of electrostatic attraction

produced by voltage difference between the mirror and

the memory cell. With the memory cell being in the ON

(1) state, the mirror rotates by +10 degrees. With the

memory cell being in the OFF (0) state, the mirror rotates

by -10 degrees. 

Figure 5. shows a close-up of DMD

mirrors operating.

Mirror – 10 deg

Mirror + 10 deg

CMOS

Substrate

Landing Tip

Yoke

Hing

By combining the DMD with a suitable light source and

projection optics (

Figure 6.), the mirror reflects incident

light either into or out of the center of the projection lens

by a simple beam steering technique. Thus, the (1) state

of the mirror appears bright and the (0) state of the mirror

appears dark.

Flat

Pixel
Image

+10

°

–10

°

+10

°

20

°

20

°

40

°

Projection

Lens

Light From
Illuminator

Flat

Pixel

Mirror

–10

°