Epson Projector Emp 820 User Manual

							79
4Repeat the operations in steps 2 
and 3 to proceed through the menu 
to more detailed items.
You can exit the Help menu at any time by 
pressing the [Help] button.
Tip :
If the Help function does not provide a solution to the problem, refer to When Having 
Some Trouble (P.80) or When the Indicators Provide No Help (P.83). 
						

							80
When Having Some Trouble
If you are having a problem with the projector, first check the projectors 
indicators.
The projector is provided with the following three indicators. These indicators 
alert you to problems with projector operation.
The following tables show what the indicators mean and how to remedy 
problems that they indicate.
: lit   : flashing   : off
Indicator statusProjector 
statusProblem and remedyReference 
page
Internal problem Stop using the projector, disconnect the 
power cord from the electrical outlet, and 
contact your dealer or the nearest address 
provided at “International Warranty 
Conditions” in Safety Instructions/World-
Wide Warranty Terms included in the 
package.
Fan problem/
Sensor 
problemStop using the projector, disconnect the 
power cord from the electrical outlet, and 
contact your dealer or the nearest address 
provided at “International Warranty 
Conditions” in Safety Instructions/World-
Wide Warranty Terms included in the 
package.
Lamp problem Replace the lamp with a new one. 
When replacing the lamp, check that the lamp 
and the lamp cover are securely installed. If 
the lamp or lamp cover is not securely 
installed, the projector power will not turn on.P. 9 4
Temperature indicator Lamp indicator Operation indicator
red red red
red red
red red
Troubleshooting 
						

							81
Lamp operating 
errorThis can happen when the power cord was 
disconnected from the electrical outlet before 
the cool-down period had finished the last 
time the projector was turned off. 
When turning off the projector, wait 2 
minutes. After about 2 minutes, the cooling 
fan will stop. When the cooling fan stops, 
disconnect the power plug and then re-insert 
it. When the power cord is plugged back in, 
the projector will return to its previous state, 
so press the [Power] button on either the 
remote control or the projectors control panel 
to turn it back on. If the lamp operating error 
happens again when the power is turned back 
on, remove the lamp and check if the lamp is 
broken. If it is not broken, reinstall it. If it is 
broken, replace it. Then press the [Power] 
button on either the remote control or the 
projectors control panel.If the indicators still 
show a problem, stop using the projector, 
disconnect the power cord from the electrical 
outlet, and contact your dealer or the nearest 
address provided at “International Warranty 
Conditions” in 
Safety Instructions/World-
Wide Warranty Terms included in the package.
High 
temperature 
inside projector 
(overheating)The lamp will turn off automatically and 
projection will stop. Wait for about 5 minutes 
without operating the projector. After 5 
minutes have elapsed, the projector’s cooling 
fan will stop. Once the cooling fan has 
stopped, unplug the power cord and then plug 
it back in again.
If the projector overheats, check the following 
two points.
 Is the setting-up location well ventilated?
Check that the air inlet and air outlet are 
clear, and that the projector is not 
positioned against a wall.
 Is the air filter blocked with dust?
If the air filter is dirty, it should be cleaned.
When the power cord is plugged back in, the 
projector will return to its previous state, so 
press the [Power] button on either the remote 
control or the projectors control panel to turn 
it back on. If the projector continues to 
overheat even after the above points have 
been checked, or if the indicators show a 
problem when the power is turned back on, 
stop using the projector, disconnect the power 
cord from the electrical outlet, and contact 
your dealer or the nearest address provided at 
“International Warranty Conditions” in Safety 
Instructions/World-Wide Warranty Terms 
included in the package.P. 1 8
P. 9 2
Indicator statusProjector 
statusProblem and remedyReference 
page
red red
red red 
						

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Tip :
 If the projector is not operating properly even though the indicators are all showing 
normal, refer to When the Indicators Provide No Help on the following page.
 If an indicator is showing a status which does not appear in the previous tables, 
contact your dealer or the nearest address provided at “International Warranty 
Conditions” in Safety Instructions/World-Wide Warranty Terms included in the 
package.
High-speed 
cooling in 
progress(This is not an abnormality, but if the 
temperature rises too high again, projection 
will stop automatically.)
 Set the projector up in a place which is 
well-ventilated, and so that the air inlet and 
exhaust vents are clear.
 Clean the air filter.P. 1 8
P. 9 2
Lamp will soon 
need to be 
replaced.Have a new replacement lamp ready. 
The lamp service life can become shorter than 
normal as a result of the usage conditions, 
and so the lamp should be replaced as soon as 
possible.
* The appearance of the operation indicator 
at this time will vary depending on the sta-
tus of the projector.P. 9 4
Standby 
condition(No abnormality) 
Projection starts when the [Power] button is 
pressed.P. 3 7
Warm-up in 
progress(No abnormality) 
Wait for a short while. The indicator will stop 
flashing and light with a green color.P. 3 7
Projecting in 
progress(No abnormality) P.37
Cool-down in 
progress(No abnormality)
 Wait for a short while.
The cool-down
 (lamp cooling operation) 
period lasts for about 2 minutes. The actual 
time will vary depending on the external air 
temperature.
 The [Power] button will not operate during 
the cool-down period. When cool-down is 
complete, the indicator will stop flashing 
and light orange. You can then use the 
[Power] button.P. 3 9
Indicator statusProjector 
statusProblem and remedyReference 
page
red orange
orange
orange
green
green
orange
Troubleshooting 
						

							83
When the Indicators Provide No Help
If any of the following problems occur and the indicators do not offer a 
solution, refer to the pages given for each problem.
No images appear (Nothing at all appears)
No images appear
Poor image quality
Only part of the image is 
displayed
(Large/small)
Images appear dark(P.83, 84)
(P.85, 86)
(P.87)
(P.87) The image colors are not 
right
No sound can be heard
The remote control does not 
work
The power does not turn off(P.88)
(P.89)
(P.90)
(P.90)
Is the lens cover still attached? 
(P.36)
Was the power turned off and then straight back on 
again?
After the power is turned off (during cool-down), the 
[Power] button will not work. Wait until cool-down
 has 
finished. You can then use the [Power] button. (P.39)
Is sleep mode active?
When sleep mode has been set to ON, the lamp turns off 
automatically if no operations are carried out for 30 
minutes while no video signal is being input. The operation 
indicator lights orange at this time. 
Setting - Sleep Mode (P.70)
Have you pressed the [Power] button?
(P. 3 7)
Has the image brightness been adjusted correctly?
Video - Brightness (P. 6 3)
Is A/V Mute mode active?
(P. 5 2)
Is the projected image completely black?
Some input images, such as screen savers, may be 
completely black.
Is a video signal being input?
If No-Signal Msg. in the Setting menu has been set to 
OFF, no messages will be displayed. Set it to Black or 
Blue for messages to be displayed. If a message is 
displayed, refer to the item indicated. (P.70)
Try resetting all of the current settings.
Reset All - Execute (P. 7 4)No images appear 
						

							84
No images appear (Messages do appear)
Check the mode which corresponds to the frequency 
of the image signals being output from the computer.
Refer to the documentation provided with your computer 
for details on changing the resolution and frequency of the 
image signals being output from the computer. (P.106)
Does the input signal match the connected source?
Use the Comp1 Input or Comp2/YCbCr Input command 
in the Setting menu to select the signal format that matches 
the connected source.
For Comp1: Digital-RGB,Analog-RGB,RGB-Video
For Comp2: Analog-RGB,RGB-Video,YCbCr,YPbPr
(P.70)
Are the cables connected correctly?
(P.19 – 33)
Has the correct video input port been selected?
Press the [Computer/YCbCr] or [Video] button on the 
projectors control panel or the [Comp1], [Comp2/YCbCr], 
[Video] or [S-Video] button on the remote control to 
change the image source. (P.38)
Is the power for the computer or video source turned 
on? 
(P.37)
If a laptop computer or a computer with a LCD screen 
has been connected to the projector, it is necessary to 
output the video signals to the projector rather than to 
the screen.
Normally video signals are output to only the computers 
LCD screen, so you need to change the output to an 
external destination. For some computer models, when the 
image signals are output externally, they no longer appear 
on the LCD screen. For details, refer to the section of the 
documentation provided with your computer under a 
heading such as External output, Connecting an external 
monitor or similar. (P.38)
Not Supported is 
displayed.
No-Signal. is displayed.
Troubleshooting 
						

							85
Poor image quality
Has the focus been adjusted correctly?
(P.46)
Has the front adjustable foot been adjusted so that the 
image angle is too big?
If the image angle is too big, the image will be out of focus 
vertically. (P.42)
Is the projector at the correct distance?
The recommended distance from the projector to the screen 
is within  0.9 – 12.4 m (3.0 – 40.7 ft.). Set up the projector 
so that the projection distance is within this range. (P.18)
Is the projector beam perpendicular to the screen?
(P.42)
Is the lens dirty?
(P.91)
Has condensation formed on the lens?
If the projector is suddenly taken from a cold environment 
to a warm environment, condensation may form on the 
lens, and this may cause the images to appear fuzzy. If this 
happens, turn off the power and wait for the condensation 
to disappear.
Have the synchronization
, tracking and display 
position been adjusted correctly?
Press the [Auto] button to adjust these settings. You can 
also use the menus to make the adjustment. 
(P.46), Vi d e o  (P.63)
Are the image signal format settings correct?
Use the Video Signal command in the Video menu to 
select the video signal format. The projector may not be 
able to automatically identify some types of video signal 
that are input. (P.66)
Does the input signal match the connected source?
Use the Comp1 Input or Comp2/YCbCr Input command 
in the Setting menu to select the signal format that matches 
the connected source.
For Comp1: Digital-RGB,Analog-RGB,RGB-Video
For Comp2: Analog-RGB,RGB-Video,YCbCr,YPbPr
(P.70)
The image is fuzzy
Part of the image is 
out of focus
The whole image is 
out of focus 
						

							86Are the cables connected correctly?
(P.19 – P.33)
Has the correct resolution been selected?
Set the computer so that the signals that are output are 
compatible with this projector. Refer to the documentation 
provided with your computer for details on changing the 
settings. (P.106)
Have the synchronization
, tracking and display 
position been adjusted correctly?
Press the [Auto] button to adjust these settings. You can 
also use the menus to make the adjustment. (P.46, 63)
Is an extension cable being used?
If an extension cable is used, electrical interference may 
increase. Use the accessory cables provided, or connect a 
signal amplifier and see if this helps.
Are the image signal format settings correct?
Use the Video Signal command in the Vi d e o menu to 
select the video signal format. The projector may not be 
able to automatically identify some types of video signal 
that are input. (P.66)
Does the input signal match the connected source?
Use the Comp1 Input or Comp2/YCbCr Input command 
in the Setting menu to select the signal format that matches 
the connected source.
For Comp1: Digital-RGB,Analog-RGB,RGB-Video
For Comp2: Analog-RGB,RGB-Video,YCbCr,YPbPr
(P.70)
Image is distorted
Image contains 
interference
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							87
Only part of the image is displayed (Large/small)
Images appear dark
The [Resize] setting may not be selected correctly.
Press the [Resize] button. (P.41, 55)
Has the Po s i t io n setting been adjusted correctly?
Use the Position command in the Vide o menu to adjust.
(P.63)
Has the correct resolution been selected?
Set the computer so that the signals that are output are 
compatible with this projector. Refer to the documentation 
provided with your computer for details on changing the 
settings. (P.106)
Change the resolution for the laptop computer or 
computer with a LCD screen.
Change the resolution so that the image is displayed in the 
whole of the projection area, or set the video signal to 
external output only. (P.38)
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 image on the computer screen. To 
display the whole of the image on the computer screen, 
turn off the dual display setting. Refer to the video driver 
manual for the computers monitor for further details.
Is the lamp due for replacement?
If the lamp indicator is flashing orange, it means that the 
lamp will soon be due for replacement. When the lamp is 
nearly due for replacement, the image will become darker, 
and so the lamp should be replaced with a new one. (P.93)
Has the image brightness been adjusted correctly?
Video - Brightness (P. 6 3)
Has the image contrast
 been adjusted correctly?
Video - Contrast (P. 6 3)
Only part of the image is 
displayed
Small 
						

							88
The image colors are not right
Has the image brightness been adjusted correctly?
Video - Brightness (P.63)
Are the cables connected correctly?
(P.19 – P.33)
Has the image contrast
 been adjusted correctly?
Video - Contrast (P.63)
Has the color been adjusted correctly?
Video - Color Mode (P.63)
Have the color intensity and tint been adjusted 
correctly?
(The colors may not exactly match the colors in the image 
on the computer screen or LCD screen, but this is normal 
and is not the sign of a problem.) 
Video - Color
 (P.65)
Video - Tint
 (P.65)
Is the lamp due for replacement?
If the lamp indicator is flashing orange, it means that the 
lamp will soon be due for replacement. When the lamp is 
nearly due for replacement, the image will become darker, 
and so the lamp should be replaced with a new one. (P.93)
Does the input signal match the connected source?
Use the Comp1 Input or Comp2/YCbCr Input command 
in the Setting menu to select the signal format that matches 
the connected source.
If the signal format is set to YCbCr or YPbPr when a 
computer is connected, the projected images will appear 
purplish.
If the signal format is set to Analog-RGB when a 
component video source is connected, the projected images 
will appear greenish.
(P.70)
Troubleshooting