Epson Projector Emp 821 User Manual

80
Problems Solving
 Image colours are not right
Check
Remedy
Do the input signal settings match the signals 
from the connected device?
If you connect a computer or RGB video to the [Computer1/Component Video1] or [Computer2/
Component Video2] port, and select Component Video1 or Component Video2 for Computer1 
Input or Computer2 Input in the configuration menu, the projected image is tinged with purplish 
red.
If you connect a component video
g to the [Computer1/Component Video1] or [Computer2/...

81
Problems Solving
 Images appear dark
 Nothing appears on the external monitor
 Power does not turn on
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.
Image - Brightness sp.51, p.53
Setting - Brightness Control sp.59
Has the image contrast
g been adjusted 
correctly?
Use the Contrast menu command to adjust the contrast.
Image - Contrast sp.51, p.53
Is the lamp due for...

82
Problems Solving
 No sound can be heard or the sound is faint
 The remote control does not work
 The fans do not stop when power is turned off 
Other problems
Check
Remedy
Is the audio source connected correctly?
Check that the cable is connected to the correct [Audio] port. sp.26
Has the volume been adjusted to the 
minimum setting?
Adjust the volume so that sound can be heard. sp.44
Is A/V Mute mode active? 
Press the [A/V Mute] button on the remote control to cancel the A/V mute function. sp.46...

AppendicesThis chapter provides information on maintenance procedures to ensure the best level of performance from the 
projector.Maintenance ........................................................ 84
 Cleaning ............................................................................... 84Cleaning the Projectors Surface ................................................ 84
Cleaning the Lens ...................................................................... 84
Cleaning the Air Filters and Air...

84
MaintenanceThis section describes maintenance tasks such as cleaning the projector and 
replacing consumable parts.Cleaning
You should clean the projector if it becomes dirty or if the quality of 
projected images starts to deteriorate.
Clean the projectors surface by wiping it gently with a soft cloth.
If the projector is particularly dirty, moisten the cloth with water 
containing a small amount of neutral detergent, and then firmly wring the 
cloth dry before using it to wipe the projectors...

85
MaintenanceReplacing Consumables
This section describes how to replace the lamp and the air filters.
It is time to replace the lamp when:
The message Replace the Lamp. appears on the screen when 
projection star ts..When the Lamp indicator is flashing orange.
The projected image gets darker or star ts to deteriorate.Lamp Replacement Period
A message will be displayed.
Flashing orange
TIP
 The lamp replacement message is set to appear after the following 
periods of time in order to maintain the...

86
Maintenance
PROCEDURE
Turn off the projectors power, wait until the cool-
down period has ended and a pip-pip confirmation 
buzzer sounds, and then disconnect the power cable.
The cool-down period lasts for about 20 seconds.
Wait until the lamp has cooled down, then remove the 
lamp cover from the base of the projector.
It takes approximately one hour for the lamp to cool down by 
itself after the cool-down period has finished.
Loosen the lamp cover fixing screw with the screwdriver that is 
supplied...

87
Maintenance
Take out the lamp.
Hold the lamp as shown in the illustration below and lift it up 
and out of the projector.
If the lamp is broken replace it with a new lamp, or contact your 
local dealer for further advice. If replacing the lamp yourself, 
be careful to avoid pieces of broken glass.Install the new lamp.
Insert the new lamp so that the lamp fits the place correctly and 
once it is fully inserted, tighten the two screws.
Install the lamp cover.
Slide the lamp cover and tighten the cover...

88
Maintenance
The projector has a built-in counter which keeps track of the lamp 
operating time. When the cumulative operating time reaches a certain 
point, it causes the replacement warning message to be displayed. 
Therefore, the counter needs to be reset after the lamp has been replaced 
with a new one. You can do this using the configuration menu.
PROCEDURE
Connect the power cable, turn on the projectors 
power, and then press the [Menu] button.
The configuration menu will be displayed.
Select...

89
Maintenance
If the air filters are broken or if the warning message reappears after they 
have been cleaned, they should be replaced.
The air filter can be replaced even if the projector is installed on a ceiling.
PROCEDURE
Turn off the projectors power, wait until the cool-down
g
 period has ended and a pip-pip confirmation 
buzzer sounds, and then disconnect the power cable.
The cool-down period lasts for about 20 seconds.
Remove the air filter.
Put your finger into the recess of the air filter and...