DS005AKC Datasheet, PDF (9/12 Pages) Sony Corporation – Single-Panel Liquid Crystal Optical Engine for Rear Projectors

DS005AKC
Notes on Handling
(1) Cooling
1) This optical engine is provided with fans to cool the panel and lamp unit. However, the set should be
designed for enough ventilation and convection to ensure sufficient cooling.
2) The lamp should under no circumstances be lit while the cooling fans are not operating. The cooling fans
are provided with sensor output pins to detect operation, and the lamp driver is provided with start
control input pins. The set should be designed so that if the cooling fans are not operating, the lamp
driver does not operate.
3) When using a dust filter with the ventilation orifices, reduced ventilation due to filter clogging can cause
rises in temperature, possibly damaging the LCD or other components. The temperature of the optical
engine should be controlled, and filters should be changed as appropriate.
(2) Lamp unit
1) In order to prevent burns and other accidents, do not directly touch the lamp housing while the lamp is lit
or immediately after it has been extinguished.
2) Because of the extremely high focusing power of the ellipsoid reflector, if it is not installed in the
specified position, damage to the engine or other problems may arise. Ensure that, if the lamp housing
is not mounted in the specified position when changing the lamp, the lamp power supply will not
operate.
3) Always use the included lamp driver to light the lamp. If the lamp is turned on and off repeatedly in short
cycles, the lamp lifetime will be shortened.
4) The lamp is designed to be lit in a horizontal position. Ensure that the optical axis of the ellipsoid
reflector is within ±20° of horizontal.
5) The lamp emits ultraviolet rays while lit and immediately after being extinguished. Be sure not to look
directly at the lamp.
(3) Protection from dust and dirt
Image quality is significantly degraded by dust on the LCD panel and the polarizer. Employ a set
construction such that after dust is removed by a filter (mesh size 50µm or less) during air cooling, air is
blown into the optical engine.
1) Employ a dust resistant set construction, and operate in a clean environment.
2) Do not touch the surface of the projection lens and polarizer. The surfaces are easily scratched. When
cleaning, use a clean-room wiper with isopropyl alcohol. Be careful not to leave stains on the surface.
3) Use ionized air to blow off dust adhered to the optical engine.
(4) Static charge prevention
1) Use non-chargeable gloves, or simply use bare hands.
2) Do not touch any electrodes.
3) Wear non-chargeable clothes and conductive shoes.
4) Keep optical engines away from any charged materials.
5) Use ionized air or some other means to discharge.
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