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● O O pti
● Optical parts care and cleaning
O
al parts s care and clea a ning
After long periods of use,dust and other particles will accumulate on the LCD panel,prism,mirror,polarized glass,
lens,etc.,causing the picture to darken or color to blur. If this occurs,clean the inside of optical unit.
Remove dust other particles using air spray. If dirt cannot be removed by air spray, disassemble and clean the
optical unit.
Caution:
Use a commercial (inert gas) air spray designed for cleaning camera and computer equipment.
Use a resinbased nozzle only. Be very careful not to damage optical parts with the nozzle tip. Never use any kind
of cleanser on the unit. Also, never use abrasive materials on the unit as this may cause irreparable damage.
Disassembly Cleaning
Disassembly cleaning method should only be performed when the unit is considerable dirty and cannot be suffi-
ciently cleaned by air spraying alone.
Be sure to readjust the optical system after performing disassembly cleaning.
Cleaning Procedure
(When no good, progress to next step.)
1. Clean surface of optical parts using air spray.
2. Wipe the dry cleaning with wiping cloth and the wiper.
3. Soak a few medicines in the cloth as follows and wipe up them lightly. After that,always wipe the dry cleaning
cloth.
Recommendation medicine
Optical parts
LCD panel
Polarized glass
(Glass with plastics sheet)
Dichroic mirror
Optical filter
(Glass with the surface coat)
Projection lens
Condenser lens
Integrator lens
Prism
Screen
Caution :
The surface of the optical components consists of multiple dielectric layers with varying degrees of refraction.
Never use organic solvents (thinner, etc.) or any kind of cleanser on these components.
ver u
se organ
e orga
e
a
a n
nic sol
Since the LCD panel is equipped with an electronic circuit, never use any liquids (water,etc.) to clean the unit.
ce the
LCD
p
panel
e
Use of liquid may cause the unit to malfunction.
Medicines
Iso-propyl-alcohol
Methanol
Synthetic detergent
Iso-paraffin liquid
Alcohol
(methanol:ethel=8:2)
Ethanol
Ethanol
Synthetic detergent
(thinn
er etc.)
er,
or an
y kind
of cle
pped
wit
h an
electr
nic
rcuit
Be sure to handle this part with special attention.
Be
s
re t
to h
an
Pay attention to static electricity. Do not touch
the electrode of flexible cables.
Wipe up lightly.
Because there is fear that the film comes off the
substrate when wiping up by the strong power.
Wipe the dry cleaning with wiping cloth and the wiper.
Soak a few medicines in the cloth as follows and wipe
up them lightly.
After that,always wipe the dry cleaning cloth.
anse
on th
ese c
eve
use
any liq q ui
- 12 -
Remarks
dle
h
s pa
art
h sp
pec
ial
atte
enti
nent
(water,etc.) to clean
on
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