Hitachi LL-805 ユーザーズマニュアル

QR77501C

ENGLISH

 The distance of projection may not allow focusing on the peripheral 

area of the screen. Adjust the focus to keep the center and the 

peripheral area of the screen balanced.

 This specifi cations are subject to change without notice.

  The zoom lens may cause some distortion of the image on the screen 

depending on the zoom position.

  Distortion may appear on screen if the keystone correction (trapezoidal 

distortion correction) is overly adjusted.

 Keystone correction (trapezoidal distortion correction) may be limited 

with some lenses.

 To maintain a certain level of image quality, depending on the lens 

model, the adjustable range of the focus and zoom is limited. As a 

result, the area around the upper or lower limit of the dialog in the 

projected image is not displayed in maximum zoom, but this is not a 

malfunction.

This symbol on the product or on its packaging means that your 

electrical and electronic equipment should be disposed at the end 

of life separately from your household wastes. There are separate 

collection systems for recycling in EU. For more information, 

please contact the local authority or the dealer where you 

purchased the product.

 

 (Always follow these instructions.)

Please read this section on important safety instructions before replacing 
the projector lens.
To prevent accidents during lens replacement and ensure product safety after 
replacing the lens, be sure to follow the safety instructions described herein.

●  These symbols indicate actions that can result in injury or damage if 

these operations are not followed correctly.

This symbol indicates that there is a possibility of serious 
injury or even death if the operation is not followed correctly.

This symbol indicates that there is a possibility of physical injury 
or damage to equipment if the operation is not followed correctly.

●  These symbols indicate the types of precautions that must followed.

This symbol indicates that 
caution must be taken.

This symbol warns of possible 
high heat.

This symbol warns of possible 
electrical shock.

This symbol indicates an action that 
must not be performed.

 

■  Before replacing the lens, be sure to turn off and 

Before replacing the lens, be sure to turn off and unplug the LCD 

projector, and allow at least 45 minutes for the projector to fully 

cool.

 

■  When attaching, take care so that dust not enter 

inside.
Continued use with dust inside may result in fi re or electric 

shock.

 

■  Do not replace the lens while the projector is 

suspended from the ceiling.
This can cause injury.

 

■  Before replacing the projector lens, be sure to read 

To ensure safe operations and the continued safety of this 

product, be sure to follow all of the safety instructions written in 

this manual and the operation manual of the LCD projector.

 

■  Do not place the lens in a location subject to direct 

This can cause a fi re due to the properties of the lens. It can 

also cause injury or damage to the lens.

 

■  Do not subject the lens to shocks.

This can cause injury or damage to the lens.

 

■   Be sure to unplug the LCD projector before replacing 

The inside of the LCD projector has areas of high voltage which 

can cause electrical shock.

 

■  Do not touch the fan of the LCD projector during 

operation.
This can cause injury.

 

correct usage through understanding. 

Incorrect usage could result in fire, an injury or 

damage.   

Any shock or impact could result in an injury or 

damage. The lens part is projected. Take care not 

to strike it.

  When transporting the LCD projector, be sure to remove the lens. 

Otherwise it could result in damage.

  When transporting the lens, protect the lens by attaching the lens cap.

 Do not touch the lens to prevent fog or dirt of the lens that cause 

deterioration of display quality.

   

Do not touch the lens directly with your hands or fi ngers.

This can dirty the lens and cause deterioration in image quality.

   The lens is a precision optical device. Carefully handle the lens 

without subjecting it to shocks or vibrations.

  When resting the lens on a surface, place the lens face down on a soft 

cloth.

  Use commercially available lens tissue to clean the lens (used to clean 

cameras, eyeglasses, etc.).

 Excepting for lens, use a soft cloth to clean. When excessively soiled 

dilute a neutral detergent in water, wet and wring out the soft cloth.

  Do not use detergents or chemicals other than those noted above (e.g. 

benzene or thinners). 

  Project an image as described in the LCD Projector user's manual, and 

adjust the size and focus of the projected image.

  See the Projection Distance table in this user's manual for information 

on optional lens projection distances.

 

■  When replacing the lens, do not touch the LCD panels or 

This can cause damage to the equipment. It can also cause 

a misalignment of the optical adjustment and, therefore, 

require readjustments.

 

■  When replacing the lens, be careful not to damage the 

This can cause damage to the equipment. Be careful not to pull 

on the connectors or wires or get them caught in the circuit board 

or case.

The lens should be replaced by authorized service personnel. 

Refer to the Replacement Manual for the replacement.