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DIS-15

Polarizer-in unit

<Remove the lamp cover and open the prism cover before tak-

ing this procedure.>

1.  Remove  each 1 hex screw-C (M2.5) on the polarizer holder 

and remove the polarizer-in unit upward carefully.

C

This projector provides high durable inorganic polarizer which have a rib shaped evaporated aluminum on the glass sur-
face. This surface is very delicate. If touching or wiping the surface, the polarizing function will be lost due to damage of the 
aluminium rib construction on the surface. Extreme care should be taken to handle the polarizer.

 

 

n Inorganic polarizer handling

Never grasp the surface or edges of the polarizer with bare hand. If fat and oil on your hand adheres on the edges 

of polarizer, the linear bolt may appear on the glass surface due to capillarity. Grasp the edges of the glass with 
new gloves or with tweezers when handling it.
n Inorganic polarizer cleaning

When removing the dust on the surface, use a commercial (inert gas) air spray or air blower to remove them. Never 
use organic solvents.

Screen side

Lamp side

In-coming 
side

In-coming side

Out-going side

Type

wipe cleaning

In-coming side

Out-going side

Polarizer-

out

R

Inorganic

NG

OK

G

Inorganic

NG

OK

B

Inorganic

NG

OK

Polarizer-in

R

Organic

OK

NG

G

Inorganic

OK

NG

B

Inorganic

OK

NG

The indication of "in-coming side" and "out-going side" of 

the polarizers or LCD panels is shown in the figure. It in-

dicates the light in-coming and out-going from the lamp.

Polarizer-in (R)

(Inorganic)

Polarizer-in (G)

(Inorganic)

Polarizer-in (B)

(Inorganic)

Please pay attention not to scratch the surface of 
polarizer-in when taking out the polarizer-in unit.

DIS-16

 LCD panels used for this model cannot be replaced separately. Do not disassemble the optical block. These LCD panels are 

installed with precision at the factory. When replacing the LCD panel, should be replaced whole of the LCD panels and prism 
assy at once. 
When replacing optical block, take the optical and electrical adjustments following to the chapter "Adjustment".

1.  Remove each 1 hex screw-B (M2.5) on the polarizer holder 

and pull the polarizer-out upward carefully.

Polarizer-out(B) 

(Inorganic type)

Polarizer-out(G) 

(Inorganic type)

Polarizer-out(R) 

(Inorganic type)

B

Al evaporated side 
(light in-coming side)

Al evaporated side 
(light in-coming side)

Al evaporated side 
(light in-coming side)

<Remove the lighting block before taking this procedure.>

1.  Remove 4 screws-A and remove the projection lens /optical block from the lighting case.

Projection lens block

Lighting case

Optical block

Note:

The optical block or the projection lens block cannot 
be replaced individually. Should be replaced as a unit.

A

DIS-17

Lighting case cover

Integrator lens assy

Lighting case bottom

1. Remove 2 screws-A and remove the lighting case cover.

2. Remove 2 screws-B and remove the integrator lens block upward.

A

B

DIS-18

Relay lens  1

Optical filter

Relay lens 2

Relay lens *

Dichroic mirror (G)

Dichroic mirror(B)

Mirror (R)

Mirror (B)

Condenser lens (G)

Condenser lens *

Mirror (R)

Coated side comes 
reflection side

Coated side comes 
reflection side

Marking comes this 
side up

Marking comes this 
side up

Marking comes this 
side up

When mounting or assembling the parts in the lighting case, the parts must be mounted in the speci-
fied location and direction as shown in the figure below.
Note:  The parts indicated with (*) are mounted by adhesive, therefore, they cannot be replaced 

individually.

Condenser lens (G)