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DIS-21
SECTION 2 DISASSEMBLY PROCEDURES
Screen side
Lamp side
In-coming
side
side
In-coming side
Out-going side
2.0mm
2.0mm
2.0mm
2.0mm
2.0mm
2.0mm
Contact prohibition area
Aluminum evaporated surface
4. Cleaning of Optical Parts
4.1. Note on handling of inorganic polarizer
This projector provides high durable inorganic polarizer which has a rib shaped evaporated aluminum on the glass surface.
This surface is very delicate. If touching or wiping the surface, the polarizing function will be lost due to damage of the alu-
minium rib construction on the surface. Extreme care should be taken to handle the polarizer.
This surface is very delicate. If touching or wiping the surface, the polarizing function will be lost due to damage of the alu-
minium rib construction on the surface. Extreme care should be taken to handle the polarizer.
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.
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.
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.
Never use organic solvents.
Indication of light in-coming side and out-going side
The indication of "in-coming side" and "out-going side" of the polarizer or LCD panels is shown in the figure. It indicates the
light in-coming and out-going from the lamp.
light in-coming and out-going from the lamp.
Contact prohibition area of inorganic polarizer
The aluminum evaporated surface of inorganic polarizer is contact prohibition area. Prohibit touching it with bare hand, wip-
ing or contacting with the other parts.
ing or contacting with the other parts.
DIS-22
SECTION 2 DISASSEMBLY PROCEDURES
The optical block cannot be disassembled.
The optical block is composed of very sensitive parts. There are some parts to bring on the performance down by touching or
wiping the surface of parts. Carry out the cleaning according to the cleaning guide table below.
The optical block has been adjusted preciously at the factory. Do not apply strong force to the LCD panel or frame on the
block.
The optical block is composed of very sensitive parts. There are some parts to bring on the performance down by touching or
wiping the surface of parts. Carry out the cleaning according to the cleaning guide table below.
The optical block has been adjusted preciously at the factory. Do not apply strong force to the LCD panel or frame on the
block.
Type
Air blower
cleaning
Wipe cleaning
Alcohol cleaning
Parts name
Type
in-coming side
out-going side
LCD panel
--
4
4
4 *
4 *
Polarizer OUT(R)
Inorganic
4
NG
4
NG
Polarizer OUT(G)
Inorganic
4
NG
4
NG
Polarizer OUT(B)
Inorganic
4
NG
4
NG
Optical filter (R)
Optical filter (G)
Optical filter (G)
Optical filter (B)
--
4
4
-
4 *
Optical filter (R)
Optical filter (B)
Polarizer OUT(G)
(Inorganic)
Polarizer OUT(R)
(Inorganic)
Polarizer OUT(B)
(Inorganic)
Optical filter (G)
R-LCD Panel
B-LCD Panel
G-LCD Panel
4 Cleaning OK
* When taking the wipe cleaning or alcohol cleaning, please pay special attention not to
touch the surface of inorganic polarizers.
Top view of the optical block
4.2. Cleaning the internal parts of the optical block
DIS-23
SECTION 2 DISASSEMBLY PROCEDURES
C
C
C
● Polarizer IN removal
Remove each1 screw (C)(M2.5x5) and pull up the polarizer IN.
<note> Do not remove the polarizer from the holder.
● Polarizer IN 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. Follow the cleaning guide below to cleaning up.
Type
Air blower
cleaning
Wipe cleaning
Alcohol cleaning
Parts name
Type
in-coming
side
out-going
side
Polarizer IN(R) assy
organic
4
4
4
4
Polarizer IN(G) assy
Inorganic
4
4
NG
NG
Polarizer IN(B) assy
Inorganic
4
4
NG
NG
Polarizer IN(G) assy
(Inorganic)
Polarizer IN(B) assy
(Inorganic)
Polarizer IN(R) assy
(organic)
4 Cleaning OK
4.3. Cleaning of the polarizer-in
DIS-24
SECTION 2 DISASSEMBLY PROCEDURES
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