Epson Projector Emp 820 User Manual
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![Page 88
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...](http://img.usermanuals.tech/thumb/23/89708/w64_epson-emp-820-manual_d-87.png "Page 88
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...")
![Page 89
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....](http://img.usermanuals.tech/thumb/23/89708/w64_epson-emp-820-manual_d-88.png "Page 89
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....")
![Page 91
89
No sound can be heard
Is the audio source connected correctly?
(P.24)
Has the correct audio input port been selected?
Use the Audio Input command in the Aud i o menu to set
the port for audio signal input. (P.67)
Is sound being output from the audio source?
Check the volume for the audio source.
Has the volume been adjusted to the minimum
setting?
(P.49)
Has the A/V Mute function been turned on?
The projector may be in A/V Mute mode. Press the [A/V
Mute] button on the projector’s control...](http://img.usermanuals.tech/thumb/23/89708/w64_epson-emp-820-manual_d-90.png "Page 91
89
No sound can be heard
Is the audio source connected correctly?
(P.24)
Has the correct audio input port been selected?
Use the Audio Input command in the Aud i o menu to set
the port for audio signal input. (P.67)
Is sound being output from the audio source?
Check the volume for the audio source.
Has the volume been adjusted to the minimum
setting?
(P.49)
Has the A/V Mute function been turned on?
The projector may be in A/V Mute mode. Press the [A/V
Mute] button on the projector’s control...")
![Page 92
90
The remote control does not work
The power does not turn off (after the [Power] button is pressed)
Is the R/C switch on the remote control set to the ON
position?
(P.14)
Is the remote control being pointed in the right
direction?
The operating angle for the remote control is
approximately ±30° horizontally and approximately ±15°
vertically.
Is the remote control too far from the projector?
The operating distance for the remote control is
approximately 10 m (30 ft.). (P.14)
Is the remote...](http://img.usermanuals.tech/thumb/23/89708/w64_epson-emp-820-manual_d-91.png "Page 92
90
The remote control does not work
The power does not turn off (after the [Power] button is pressed)
Is the R/C switch on the remote control set to the ON
position?
(P.14)
Is the remote control being pointed in the right
direction?
The operating angle for the remote control is
approximately ±30° horizontally and approximately ±15°
vertically.
Is the remote control too far from the projector?
The operating distance for the remote control is
approximately 10 m (30 ft.). (P.14)
Is the remote...")
89 No sound can be heard Is the audio source connected correctly? (P.24) Has the correct audio input port been selected? Use the Audio Input command in the Aud i o menu to set the port for audio signal input. (P.67) Is sound being output from the audio source? Check the volume for the audio source. Has the volume been adjusted to the minimum setting? (P.49) Has the A/V Mute function been turned on? The projector may be in A/V Mute mode. Press the [A/V Mute] button on the projector’s control panel or the remote control to cancel the A/V Mute sub-menu command. (P.52) Is sound being output to external speakers? If a stereo mini jack is connected to the Audio Out port, no sound will be output from the projectors built-in speaker. (P.34) Have the correct USB audio settings for this projector been made at the computer? If using a USB cable to output sound from the computer, you need to select USB audio for the projector in the audio properties for the computer.
90 The remote control does not work The power does not turn off (after the [Power] button is pressed) Is the R/C switch on the remote control set to the ON position? (P.14) Is the remote control being pointed in the right direction? The operating angle for the remote control is approximately ±30° horizontally and approximately ±15° vertically. Is the remote control too far from the projector? The operating distance for the remote control is approximately 10 m (30 ft.). (P.14) Is the remote control being pointed at the projector when a remote control receiver has been connected? Is direct sunlight or strong light from fluorescent lamps shining onto the remote control receiver? Are there batteries in the remote control? (P.13) Are the batteries dead? Have the batteries been inserted correctly? (P.13) If the mouse function does not work after connecting a PS/2 mouse, you will need to restart the computer. The operation indicator remains orange. This projector is designed so that the operation indicator remains lit even when after the power has been turned off. The operation indicator will switch off when the power cord is disconnected from the electrical outlet. Cooling fan does not stop. After the [Power] button on either the remote control or the projectors control panel is pressed to turn off the power, the cool-down period starts. After this, the operation indicator changes to a steady orange, and you can then disconnect the power cord from the electrical outlet. * The cool-down period lasts for about 2 minutes. The actual time will vary depending on the external air temperature. PowerA/V MuteFreeze E-Zoom EscMenu Comp1 SourceVideoAuto PresetVo l u m eP in PS-VideoResize Comp2/YCbCrHelp Troubleshooting
91 Maintenance This 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. Be sure to read the separate Safety Instructions/World-Wide Warranty Terms for details on safe handling of the projector during cleaning. Clean the projector case 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 projector case. Then wipe the case again with a soft, dry cloth. Caution : Do not use volatile substances such as wax, alcohol or thinner to clean the projector case. These can cause the case to warp and make the coating finish peel off. Use a commercially-available air blower, or use a lens cleaning paper to gently wipe the lens. Caution : Do not rub the lens with harsh materials or subject the lens to shocks, as it can easily become damaged. Cleaning the Projector Case Cleaning the Lens
92 If the air filter becomes clogged with dust, it can cause overheating and damage the projector. Stand up the projector in order to prevent dust getting inside the projector, and then use a vacuum cleaner to clean away the dust from the air filter. Tip : If the air filter is difficult to clean or if it is broken, it should be replaced. Contact your dealer for a spare air filter. Replacement lamps are provided with a spare air filter. The air filter should also be replaced when the lamp is replaced. Cleaning the Air Filter Maintenance
93 Replacing Consumables This section describes how to replace the lamp and the air filter. It is time to replace the lamp when: The message Lamp Replace appears on the screen for 30 seconds when projection starts. The lamp indicator flashes orange or lights red. The projected image gets darker or starts to deteriorate. Tip : In order to maintain the brightness and quality of the projected images, replace the lamp as soon as possible after the warning message appears. The replacement warning message is set to appear after 1400 hours of lamp use in order to maintain the brightness and quality of the projected images. If you continue to use the lamp after this period, the possibility of the lamp breaking becomes greater. When the lamp replacement message appears, replace the lamp with a new one as soon as possible, even if it is still working. The warning message appears after 1400 hours of use, but the actual life of each individual lamp will vary depending on the characteristics of the lamp and on the way it has been used. Some lamps may stop operating before 1400 hours of use, so you should always have a spare lamp ready in case. When the lamp replacement warning message appears, the user’s logo will not appear even if the start-up screen setting is ON. Contact your dealer for a spare lamp. Lamp Replacement Period A message will be displayed. Lamp indicator flashes orange or lights red
94 Caution : If the lamp stops working and needs to be replaced, there is the danger that the lamp may break when handled. If replacing the lamp of a projector which has been installed to the ceiling, you should always assume that the lamp is broken and handle it with extreme care during removal. Furthermore, you should stand to the side of the projector, not underneath it. Procedure 1Turn off the projector power, wait for the cool-down period to end, and then disconnect the power cord. The cool-down period lasts for about 2 minutes. The actual time will vary depending on the external air temperature. 2Wait until the lamp has cooled down, and then remove the lamp cover. It takes approximately 30 minutes for the lamp to cool down by itself. Use the screwdriver that is provided with the replacement lamp to slide the lamp cover opening switch so that the lamp cover lifts up. Hold the raised section of the lamp cover and then slide it forward to remove it from the projector. 3Loosen the two lamp fixing screws. Use the screwdriver that is supplied with the replacement lamp to loosen the two lamp fixing screws that are securing the lamp to the projector. Replacing the Lamp Maintenance
95 4Take out the lamp. Hold the lamp by the two recesses on the side to lift it up and out from the projector. 5Install the new lamp. Hold the lamp so that it faces the correct way to fit into the projector, and then insert the lamp until it clicks into place and tighten the two fixing screws. 6Install the lamp cover. Insert the two cover tabs into the projector, and then press the other side of the lamp cover until it clicks into place. Tip : Install the lamp securely. If the lamp cover is removed, the lamp turns off automatically as a safety precaution. Moreover, the lamp will not turn on if the lamp or the lamp cover is not installed correctly. Replacement lamps are provided with a spare air filter. The air filter should also be replaced when the lamp is replaced. Dispose of used lamps properly in accordance with your local regulations.
96 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 projector menu. Procedure 1Press the [Menu] button on either the remote control or the projectors control panel. The Main menu will be displayed. 2Select Reset Lamp Timer from the About menu and then press the button. 3Select Yes and then press the button. The lamp operating time will then be reset. Tip : Do not reset the lamp operating time except after the lamp has been replaced, otherwise the lamp replacement period will not be indicated correctly. Resetting the Lamp Operating Time EscMenu Comp1 SourceVideo S-Video Comp2/YCbCr Help Sync+ Tracking - Tracking +Menu Esc Computer/YCbCrVideo Auto Source Projector Remote control Maintenance
97 Procedure 1Turn off the projector power, wait for the cool-down period to end, and then disconnect the power cord. The cool-down period lasts for about 2 minutes. The actual time will vary depending on the external air temperature. 2Put your finger into the recess in the air filter hook, and lift up the air filter to remove it. In order to prevent any dust on the air filter from getting into the projector, be sure to stand up the projector so that the handle is at the top. 3Install the new air filter. First insert the tabs, and then press down on the opposite side until it clicks into place. Tip : Dispose of used air filters properly in accordance with your local regulations. Replacing the Air Filter
98 Saving a Users Logo You can record the image that is currently being projected as a users logo. Procedure 1Project the image that you would like to use as a users logo, and then press the [Menu] button on the projector’s control panel or the remote control. 2Select the Users Logo menu, and then press the button . Tip : If keystone correction has been carried out, it will be canceled when the Users Logo menu is selected. 3Select Yes in the sub-menu, and then press the button. 4The image to be recorded and a selection marquee box will be displayed. Move the marquee box to select the part of the image to use. Tilt the button on the remote control to select the part of the image to use as the user’s logo, and then press the button. Tip : If the video signal being input is a YCbCr or YPbPr signal, the selection marquee box can only be moved around the middle of the image.