Epson Projector Emp 750 User Manual

							
80
Problems SolvingUser’s Guide
 No images appear
 Can not switch projection  to a video source by pressi ng the [Source Search] button
Problems relating to images
Check
Remedy
Was the [Power] button pressed?
Press the [Power] button to turn the power on.
Are both indicators switched off?
The power cable is not connected  correctly or power is not being supplied normally. Connect the 
projectors power cable correctly.  sp.35
Check that your power supply socket is working.
Is A/V Mute  mode active?
Press the [A/V Mute] button on the remote control to cancel the mute.  sp.50
Has Message been set to OFF?
If the Message command is set to OFF, set it  to ON so that messages can be displayed. When 
a message is displayed, refer to the item that it indicates.
Extended - Display - Message  sp.64
Have the configuratio n menu settings been 
made correctly?
Reset all of the settings. Reset - Reset All  sp.68
Is the projected imag e completely black?
Some input images, such as screen  savers, may be completely black.
Are the image signal format settings correct?
If a composite video
g or  S-Video
g source is connected to the projector, use the Video Signal 
menu command to select the signal format. 
Signal - Video Signal  sp.61
Check
Remedy
Is the image signal out put from the video 
equipment?
Press the [Play] button of the video equipment.
Or press one of the source buttons  on the remote control ([Computer], [S-Video] or [Video] button) 
to switch to the desired source.
Only when projecting computer images
Only when projecting images 
from a video sourceOnly when projecting images 
from a video source 
						

							
81
Problems SolvingUser’s Guide
 Projection stops automatically
 The message Not Suppo rted. is displayed
Check
Remedy
Is Sleep Mode set to ON?
When the Sleep Mode menu command has been set  to ON, the lamp turns off automatically if 
no operations are carried out for  about 30 minutes while no video signal is being input. The Power 
indicator will flash orange at th is time. Press the [Power] button to  turn the power on. If you do not 
want sleep mode to be used, change the Sleep Mode setting to OFF.
Extended - Operation - Sleep Mode  sp.65
Check
Remedy
Are the image signal  format settings correct?
If a composite video
g or  S-Video
g source is connected to the projector, use the Video Signal 
menu command to select the signal format. 
Signal - Video Signal  sp.61
Does the mode match the frequency and 
resolution of the image signals?
Refer to the documentation provided with your co mputer for details on changing the resolution and 
frequency of the image signals  being output from the computer. 
List of Supported Monitor Displays  sp.115
Only when projecting images 
from a video source
Only when projecting computer images 
						

							
82
Problems SolvingUser’s Guide
 The message No Signal. is displayed
 Images are fuzzy or out of focus
Check
Remedy
Are the cables conne cted correctly?
Check that all of the cables require d for projection are securely connected.  sp.20 – p.26
Has the correct vi deo input port been 
selected?
Press the [Computer], [S-Video], [Video] or  [EasyMP](EMP-765/755 only) button on the remote 
control or the [Source Search] button  on the remote control or the projectors control panel to change 
the image.  sp.37
Is the power for the  computer or video source 
turned on?
Turn the power on for the devices.  sp.36
Are the image signals being output to the 
projector?
If the image signals are only being output to th e computers LCD monitor or to the accessory 
monitor, you need to change the output to an exte rnal destination as well as the computers own 
monitor. For some computer models, when the im age signals are output externally, they no longer 
appear on the LCD monitor or accessory monitor. s
 Computer documentation, under a title such as E xternal output or Connecting an external 
monitor
If the connection is made while the power is alre ady turned on, the function [Fn] key that switches 
the computers video signal to external output ma y not work. Turn the power for the projector and 
the computer off and then back on again.  sp.36 , p.38
Check
Remedy
Has the focus been  adjusted correctly?
Turn the focus ring on the projector to adjust the focus.  sp.40
Is the lens cove r still attached?
Remove the lens cover.  sp.35
Is the projector at  the correct distance?
The recommended projection dist ance range is 100–1210 cm (3.2–39.7 ft .). Set the projector up so 
that it is within this range.  sp.16
Is the keystone adjustm ent value too large?
Decrease the projection angle to reduce  the amount of keystone correction. sp.43
Has condensation form ed 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.
Only when projecti ng images from 
a laptop computer or computer 
with a built-in LCD screen 
						

							
83
Problems SolvingUser’s Guide
 Interference or dist ortion appear in images
Check
Remedy
Are the image signal  format settings correct?
If a composite video
g or  S-Video
g source is connected to the projector, use the Video Signal 
menu command to select the signal format. 
Signal - Video Signal  sp.61
Are the cables conne cted correctly?
Check that all of the cables require d for projection are securely connected.  sp.20 – p.26
Is an extension cable being used?
If an extension cable is used, el ectrical interference may affect  the signals. Use the accessory cables 
and check if this helps.
Has the correct re solution been selected?
Set the computer so that the signals that ar e output are compatible with this projector. 
List of Supported Monitor Displays  sp.115
s  Computer documentation
Have the  Sync.
g and  Tracking
g settings 
been adjusted correctly?
Press the [Auto] button on the remote control or th e [Enter] button on the projectors control panel 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. sp.45 , p.46
Only when projecting images 
from a video source
Only when projecting computer imagesComputer and RGB  video signals only 
						

							
84
Problems SolvingUser’s Guide
 Image is truncated (large) or small
Check
Remedy
Has the Resize been set correctly?
Press the [Resize] button on the remote control.
 s p.51
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.  sp.52
Has the Position  setting been adjusted 
correctly?
If analogue RGB images from a computer or  RGB video images are being projected, press the 
[Auto] button on the remote control  or the [Enter] button on the projectors control panel to carry out 
automatic adjustment.
If the images have not been correctly adjusted  after using the automatic setup function, adjust the 
setting manually using the Position menu command.
If signals other than analogue RGB images from a  computer or RGB video images are being input, 
adjust the setting manually usi ng the Position menu command.
Signal - Position  sp.60 , p.61
Has the computer been set  for dual display?
If dual display has been activated in the Display  Properties of the computers Control Panel, the 
projector will only project about half of the imag e on the computer screen. To display the whole of 
the image on the computer screen,  turn off the dual display setting. 
s  Computer video driver documentation
Has the correct re solution been selected?
Set the computer so that the signals that ar e output are compatible with this projector. 
List of Supported Monitor Displays  sp.115
s  Computer documentation
Only when projecting computer imagesOnly when projecting computer images 
						

							
85
Problems SolvingUser’s Guide
 Image colours are not right
Check
Remedy
Do the input signal set tings match the signals 
from the connected device?
If you connect a computer or RGB video to th e [Computer/Component Video] port, and select 
Component Video for Computer  Input in the configuration menu, the projected image is tinged 
with purplish red.
If you connect a  component video
g to the [Computer/Component  Video] port, and select 
Computer for Computer Input in  the configuration menu, the projected image is tinged with 
green.
Select the correct  signal format for the connected source.
Signal - Computer Input  sp.60 , p.61
If a  component video
g or  S-Video
g source is connected to the projector, use the Video Signal 
menu command to select the video signal format.
Signal - Video Signal  sp.61
Has the image bri ghtness been adjusted 
correctly?
Use the Brightness menu command to adjust the brightness.
Image - Brightness  sp.56 , p.58
Are the cables conne cted correctly?
Check that all of the cables require d for projection are securely connected.  sp.20 – p.26
Has the image  contrast
g been adjusted 
correctly?
Use the Contrast menu command to adjust the contrast.
Image - Contrast  sp.56 , p.58
Has the colour been adjusted correctly?
Use the Color Adjustment menu command to adjust the colour.
Image - Color Adjustment  sp.57 , p.59
Have the colour inte nsity and tint been 
adjusted correctly?
Use the Color Intensity and Tint menu  commands to adjust the colour and tint.
Image - Color Intensity, Tint  sp.58
Only when projecting images 
from a video source 
						

							
86
Problems SolvingUser’s Guide
 Images appear dark
 Power does not turn on
Check
Remedy
Have the image brig htness and luminance 
been adjusted correctly?
Use the Brightness and Brightness Control  menu commands to adjust the brightness and 
luminance.
Image - Brightness  sp.56 , p.58
Setting - Brightness Control  sp.62
Has the image  contrast
g been adjusted 
correctly?
Use the Contrast menu command to adjust the contrast.
Image - Contrast  sp.56 , p.58
Is the lamp due for replacement?
When the lamp is nearly due for replacement, th e images will become darker and the colour quality 
will become poorer. When this happens, the  lamp should be replaced with a new one. sp.101
Problems when projection starts
Check
Remedy
Have you pressed the [Power] button?
Press the [Power] button to turn the power on.
Are all of the indicators switched off?
The power cable is not connected  correctly or power is not being supplied. Connect the power cable 
to the projector correctly.  sp.35
Alternatively, check the circuit break er to see if power is being supplied.
Do the indicators turn off and on when the 
power cable is touched?
There is probably a poor contact in the power cable , or the power cable may be defective. Reinsert 
the power cable. If this does not solve the probl em, stop using the projector, disconnect the power 
cable from the wall outlet and contact the nearest  address provided in the International Warranty 
Conditions section of the  Safety Instructions/World-Wide Warranty Terms  booklet. 
						

							
87
Problems SolvingUser’s Guide
 No sound can be heard  or the sound is faint
 The remote control does not work
 The projectors contro l panel does not work.
Other problems
Check
Remedy
Is the audio source connected correctly?
Check that the cable is connected to the [Audio] port correctly.  sp.27
Has the audio output  setting been set to 
External? (EMP -765/755 only)
If using the EMP-765/755, you cannot pl ay sound through the projectors built-in speaker when the 
EasyMP Audio Out in the configuration menu is set  to External. Change the setting to Internal 
to play sound through the projector . Setting - EasyMP Audio Outsp.63
Has the volume been adjusted to the 
minimum setting?
Adjust the volume so that sound can be heard.  sp.48
Is A/V Mute  mode active? 
Press the [A/V Mute] button on the remote  control to cancel the A/V mute function. sp.50
Check
Remedy
Is the remote contro l 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 control is  approximately ±30º horizontally and approximately 
±15º vertically.  sp.14
Is the remote control too far from the 
projector?
The operating range for the remote  control is approximately 6m. sp.14
Is direct sunlight or  strong light from 
fluorescent lamps shini ng onto the remote 
control light-receiving area?
Set the projector up in a location where strong light  will not shine onto the remote control light-
receiving area.
Are the batteries dead, or  have the batteries 
been inserted correctly?
Insert new batteries, while making sure th at they are inserted the correct way around.  sp.12
Check
Remedy
Has the Operation Loc k been set to ON?
All buttons except the [Power] button on the cont rol panel are disabled when the Operation Lock 
in the configuration menu is  set to ON. Use the remote control  to operate the projector, or change 
the lock setting to OFF  sp.54 
						

							
88
Problems SolvingUser’s Guide
 The fans do not stop when power  is turned off (EMP-765/755 only)
 Mail notification messages ar e not being sent when a problem occurs with the projector
Check
Remedy
Is the Standby Mode co nfiguration menu set 
to Network ON?
If the menu is set to Network ON, the fans will  continue to operate after the cool-down period has 
finished.
Extended - Standby Mode  sp.66
Problems Relating to Monitoring  and Controlling Projectors Using  a Network (EMP-765/755 only)
Check
Remedy
Is the wireless or wired LAN card inserted?
Check that the wireless or wired LA N card is correctly inserted into the card slot of the projector.
Inserting and Removing Cards  sp.17
Is the network cable  connected  correctly?
Check that the network cable is connected correc tly. If it is not connected or is connected 
incorrectly, reconnect it.
Are the settings for con necting to a network 
correct?
Check the network settings for the projector.
s Connecting in Access Point Mode or Wired LAN Mode in the  EasyMP Network Setup Guide
Has Standby Mode been set to Network 
ON?
If using the mail notification function while the  projector is in standby mode, change the Standby 
Mode menu setting to Network  ON. Extended - Standby Mode  sp.66
Has a critical problem  developed causing the 
projector to momentarily stop working?
When the projector has momentarily stopped wo rking, 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 Wa rranty Conditions section of the Safety Instructions/World-Wide 
Warranty Terms  booklet.
Is power being suppli ed to the projector?
Check if the power supply to the location where the pr ojector is set up has been interrupted, or if the 
circuit breaker for the  electrical outlet that the projector is connected to has been tripped.
When connected to  a wired LAN 
						

							
89
Problems SolvingUser’s Guide
 The projector cannot  be monitored and controlled using the EMP Monitor function
 When Network Screen is runn ing, the current image stays projected and connection from anot her computer is not possible
Check
Remedy
Is the wireless or wired LAN card inserted?
Check that the wireless or wired LA N card is correctly inserted into the card slot of the projector.
Inserting and Removing Cards  sp.17
Is the network cable  connected  correctly?
Check that the network cable is connected correc tly. If it is not connected or is connected 
incorrectly, reconnect it.
Are the settings for con necting to a network 
correct ?
Check the network settings for the projector.
s Connecting in Access Point Mode or Wired LAN Mode in the  EasyMP Network Setup Guide
Has EMP Monitor function been correctly 
installed to the computer?
Uninstall EMP Monitor and then re-install it.
s If You would like to Uninstall the EasyMP So ftware and Installing EasyMP Software in the 
EasyMP Network Setup Guide
Have all projectors that  are to be monitored 
and controlled been registered in the 
projector list?
Register the projector in the projector list.  sEMP Monitor Operation Guide
Has Standby Mode bee n set to Network 
ON?
If using the EMP Monitor function while the proj ector is in standby mode, change the Standby 
Mode menu setting to Network  ON. Extended - Standby Mode  sp.66
Is power being suppli ed to the projector?
Check if the power supply to the location where the pr ojector is set up has been interrupted, or if the 
circuit breaker for the  electrical outlet that the projector is connected to has been tripped.
Check
Remedy
Has the person making th e presentation left 
the meeting room wi thout closing the 
connection?
If you try to connect to a projector from a co mputer while Network Screen is running and the 
projector is already connected to another computer , the connection to the first computer will be 
terminated and the projector will th en connect to the next computer.
If no projector keyword has been set in the proj ector or the keyword is known, it is possible to 
terminate the current connection and connect to th e projector by establishing a new connection from 
the computer. 
If a projector keyword has been set in the project or and the projector keyword is unknown, terminate 
the connection from the projecto r and then reconnect. To terminate the connection from the 
projector, press the [Esc] button on the remote cont rol, select the Exit button from the displayed 
menu and then press the [Enter] button on the remo te control. Connect from the desired computer 
after terminating the connection. 
s Disconnecting from a Netw ork Connection in the EasyMP Network Setup Guide
When connected to a wired LAN