Epson EMP-505 / 715 사용자 설명서

 When the Indicators Provide No Help - 103

· The screen is 

blurred.

· Focus can only be 

attained in certain 
areas.

●

Has the lens been stored in the projector?
Images will be out of focus if the position of the zoom lever is outside 
of the [W] to [T] range. Ensure that the lever is set within the [W] to 
[T] range.

●

Has the focus been set correctly?
see page 46

●

Has the projection angle been increased by adjusting the feet?
There are cases where the vertical focus is difficult to align if the 
projection angle is too large.

●

Is the projection distance suitable?
The recommended projection distance range is between 1.1m and 
13.9m. Locate the projector within this distance range.
see page 23

●

Is the lens soiled?
see page 24

●

Is the projection light shining at right angles onto the screen?
see page 109

●

Is the lens fogged?
Condensation will form on the surface of the lens when the projector 
is suddenly brought into a warm room from a cold room, and this 
may lead to the image seeming blurred. In this event, switch the 
power off and leave the unit to stand for a while.

●

Has the [Sync., Tracking and Position] been adjusted?
The image can be adjusted by regulating the [Tracking] and [Sync] 
buttons on the projector while monitoring the image on screen. 
Adjustments can also be made by opening the [Menu].
see page 47, 65

●

Has the signal format setting for the image been set correctly?
Set the signal format with [Menu] 

− [Image] − [Video Signal]. There 

are cases where the image signals being input cannot be determined 
in the [Auto] mode.
see page 65

●

Do the input signals match the connected equipment?
Set the signal type with the [Menu] - [Image] - [Input Signal] 
parameter. Set [RGB] for computer signals, and [YCbCr] or [YPbPr] 
(depending on the equipment signals) for component video signals.