Инструкция для EPSON EMP-74L

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77

Problem Solving

 Images are fuzzy or out of focus.

 Interference or distortion appear in images.

Check

Remedy

Has the focus been adjusted correctly?

Turn the focus ring on the projector to adjust the focus. 

 

p.37

Is the lens cover still attached?

Remove the lens cover. 

 

p.32

Is the projector at the correct distance?

The recommended projection distance range is 89–1050 cm (2.9–34.4 ft.). Set the projector up so 
that it is within this range. 

 

p.15

Is the keystone adjustment value too large?

Decrease the projection angle to reduce the amount of keystone correction. 

 

p.40

Has condensation formed on the lens?

If the projector is suddenly taken from a cold environment to a warm environment or if sudden 
ambient temperature changes occur, condensation may form on the surface of the lens, and this may 
cause the images to appear fuzzy. Set the projector up in the room approximately one hour before it 
is to be used. If condensation forms on the lens, turn the power off and wait for the condensation to 
disappear.

Check

Remedy

Are the image signal format settings correct?

If signals from the [Computer1/Component Video1] port or the [Computer2/Component Video2] 
port are being projected, use the "Input Signal" menu command to set the signal format that matches 
the signal that is being projected from the connected equipment.
"Image" - "Input Signal" 

 

p.52

p.55

If a 

composite video

 or 

S-Video

 source is connected to the projector, use the "Video Signal" 

menu command to select the signal format. 
"Image" - "Video Signal" 

 

p.56

Are the cables connected correctly?

Check that all of the cables required for projection are securely connected. 

 

p.16

p.24

Is an extension cable being used?

If an extension cable is used, electrical interference may affect the signals. Use the accessory cables 
and check if this helps.

Has the correct resolution been selected?

Set the computer so that the signals that are output are compatible with this projector. 
"List of Supported Monitor Displays" 

 

p.100

 Computer documentation

Have the "

Sync.

" and "

Tracking

" settings 

been adjusted correctly?

Press the [Auto] button on the remote control to carry out automatic adjustment. If the images have 
not been adjusted correctly after using automatic adjustment, you can make the adjustments using 
the "Sync." and "Tracking"  menus. 

 

p.42

p.43

Only when projecting computer images

Computer and RGB video signals only

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