Epson Projector Emp 7850 User Manual

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Problem Solving Problem SolvingEMP-7850 User’s Guide
When the Indicators Provide No Help
First refer to the following problems to determine what type of problem it is that you are having, and then refer to the page containing details of the problem.
No images appear   p.101
Projection does not start, the projection area is completely black, the 
projection area is completely blue, etc.
Projection stops automatically   p.101
The message Not Supported. is displayed.   p.102
The message No Signal. is...

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Problem Solving Problem SolvingEMP-7850 User’s Guide
 No images appear
 Projection stops automatically
Problems relating to images
Check
Remedy
Was the [Power] button pressed?
Press the [Power] button on either the remote control or the projectors control panel to turn the 
power on.
The remote control cannot be used unless the [R/C] switch of the remote control is at ON. 
 p.36
Is the A/V Mute function active?
Press the [A/V Mute] button on either the remote control or the projectors control panel...

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Problem Solving Problem SolvingEMP-7850 User’s Guide
 The message Not Supported. is displayed.
 The message No Signal. is displayed.
Check
Remedy
Are the image signal format settings correct?
If the signal from the video source which is connected to the [BNC] ports of the projector is being 
projected, use the BNC Input menu command to select the signal format which matches the 
connected signal source.   Setting - BNC Input p.84
If a composite video
 or S-Video
 source is connected to the projector,...

103
Problem Solving Problem SolvingEMP-7850 User’s Guide
 Images are fuzzy or out of focus.
 Interference or distor tion appears in images.
Check
Remedy
Has the focus been adjusted correctly?
Turn the focus ring on the projector to adjust the focus.   p.42
Is the lens cover still attached?
Remove the lens cover.   p.35
Is the projector at the correct distance?
The recommended projection distance range is 77–1113 cm. Set the projector up so that it is within 
this range.   p.15
Is the keystone adjustment...

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Problem Solving Problem SolvingEMP-7850 User’s Guide
 Image is truncated (large) or small
Check
Remedy
Is the image in real display?
Is the aspect ratio setting correct?
Press the [Resize] button on either the remote control or the projectors control panel.   p.70
Is the image still being enlarged by the 
E-Zoom function?
Press the [ESC] button on the remote control to cancel the E-Zoom function.   p.63
Has the Position setting been adjusted 
correctly?
If analogue RGB computer signals are being...

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Problem Solving Problem SolvingEMP-7850 User’s Guide
 Image colours are not right
Check
Remedy
Do the input signal settings match the signals 
from the connected device?
If the BNC Input menu command has been set to YCbCr
 or YPbPr
 when a computer or 
RGB video source is connected to the [BNC] ports of the projector, the images will appear purplish.
If the BNC Input menu command has been set to Analog-RGB when a component video
 
signal source is connected to the [BNC] ports of the projector, the...

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Problem Solving Problem SolvingEMP-7850 User’s Guide
 Images appear dark
 No sound can be heard or the sound is faint
Check
Remedy
Have the image brightness and luminance 
been adjusted correctly?
Use the Brightness and Brightness Control menu commands to adjust the brightness and 
luminance.
 Video - Brightness p.76, p.79
 Advanced2 - Brightness Control p.89
Has the image contrast
 been adjusted 
correctly?
Use the Contrast menu command to adjust the contrast.   Video - Contrast p.76, p.79
Is the...

107
Problem Solving Problem SolvingEMP-7850 User’s Guide
 The remote control does not work
 Mail notification messages are not being sent when a problem occurs with the projector.
Check
Remedy
Is the [R/C] switch at the ON position?
Set the [R/C] switch to the ON position.   p.36
Is the remote control light-emitting area 
facing towards the remote control light-
receiving area when it is operated?
Face the remote control towards the remote control light-receiving area.
The operating angle for the remote...

108
Problem Solving Problem SolvingEMP-7850 User’s Guide
 The projector cannot be monitored and controlled using the EMP Monitor function.Has a critical problem developed causing the 
projector to momentarily stop working?
When the projector has momentarily stopped working, it cannot send e-mail messages. If the 
projector cannot be reset even after it has been checked, contact your dealer or the nearest address 
provided in the International Warranty Conditions section of the Safety...

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Problem Solving Problem SolvingEMP-7850 User’s Guide
 You cannot connect from another computer when images are being projected during a network connection
Check
Remedy
Has the person making the presentation left 
the meeting room without closing the 
connection?
At the time of a network connection, if a different computer connects to the projector that is 
connecting with the computer, the connection with the current connected computer will be 
terminated and the next computer will be connected. 
If...