Hitachi Ed-X12 Projector Users Manual

							51
Lamp (continued)
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cause the pictures darker or the color tone poor. Note that each lamp has a 
different lifetime, and some may burst or burn out soon after you start using them. 
Preparation of a new lamp and early replacement are recommended.
To prepare a new lamp, contact your dealer and tell the lamp type number.
Type number = DT00757.
1.Turn the projector off, and unplug the power cord. Allow the lamp to cool for 
at least 45 minutes.
2.Prepare a new lamp. 
If the projector is mounted on the ceiling, or if the lamp has broken, also ask 
the dealer to replace the lamp.
In the case of replacement by yourself,
3.Loosen the lamp cover screw (marked by arrow) 
and then slide the lamp cover to the side to 
remove it.
4.Loosen the 2 screws (marked by arrow) of the 
lamp, and slowly pick up the lamp by the handles.
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screws that are loosened in the previous process 
to lock it in place.
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fasten the lamp cover a screw.
7.Turn the projector on and reset the lamp time 
using the LAMP TIME function in the OPTION 
menu
 (	41).
(1) Press the MENU button to display a menu. Only 
when the EASY MENU has appeared, please 
perform the next step (2).
(2) Point at the “Go to Advanced Menu …” in the menu 
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(3) Point at the “OPTION” in the left column of the 
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							52
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							53
Maintenance
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							54
Maintenance
WARNING
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							55
Troubleshooting
Related messages
When the units power is on, messages such as those shown below may be 
displayed. When any such message is displayed on the screen, please follow the 
instructions described below. If the same message is displayed after the remedy, 
or if a message other than the following appears, please contact your dealer or 
service company.
Although these messages will be automatically disappeared around several 
minutes, it will be reappeared every time the power is turned on.
Message Description
NO INPUT IS DETECTED
½½½There is no input signal.

of the signal source.
SYNC IS OUT OF RANGE
½½½
                fH½½kHz  fV½½HzThe horizontal or vertical frequency of the input signal 
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source specs.
CHECK THE AIR FLOW
The internal temperature is rising.
Please turn the power off, and allow the projector to cool 
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							56
Troubleshooting
Regarding the indicator lamps
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							57
Troubleshooting
Regarding the indicator lamps (continued)
POWER
indicatorLAMP 
indicatorTEMP 
indicatorDescription
Blinking
In
Red
or
Lighting
In
Red
Turned
offBlinking
In
Red
The cooling fan is not operating.
Please turn the power off, and allow the projector to 
cool down at least 20 minutes. After the projector has 
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that no foreign matter has become caught in the fan, 
etc., and then turn the power on again.
If the same indication is displayed after the remedy, 
please contact your dealer or service company.
Blinking
In
Red
or
Lighting
In
Red
Turned
offLighting
In
Red
There is a possibility that the interior portion 
has become heated.
Please turn the power off, and allow the projector to 
cool down at least 20 minutes. After the projector has 

the following items, and then turn the power on again.

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If the same indication is displayed after the remedy, 
please set FAN SPEED of the SERVICE item in the 
OPTION menu to HIGH.
Lighting
In
Green
Simultaneous
blinking in 
Red
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							58
Troubleshooting
Phenomena that may be easy to be mistaken for machine defects
WARNING
yNever use the projector if abnormal operations such as 
smoke, strange odor, excessive sound, damaged casing or elements or cables, 
penetration of liquids or foreign matter, etc. should occur. In such cases, 
immediately turn off the power switch and then disconnect the power plug from 
the power outlet. After making sure that the smoke or odor has stopped, contact 
your dealer or service company.
1.Before requesting repair, please check in 
accordance with the following chart.  This 
operation sometimes resolves your problem.
If the situation cannot be corrected, 
2.The projector’s microprocessor may need to be 
reset. Please push the Restart switch by using a cocktail stick or similar and 
the projector will restart.
3.Some setting may be wrong. Please use the FACTORY RESET function of the 
SERVICE item in the OPTION menu
 (	43) to reset all settings to factory default.
Then, if the problem is not removed after the remedy, please contact your dealer 
or service company.
Phenomenon Cases not involving a machine defectReference
page
Power does not 
come on.
The electrical power cord is not plugged in.
Correctly connect the power cord.14
The power switch is not set to the on position.
Set the power switch to [ | ] (On).17
The main power source has been interrupted during 
operation such as by a power outage (blackout), etc.
Please turn the power off, and allow the projector to cool 
down at least 2 minutes, then turn the power on again.17
Either there is no lamp and/or lamp cover, or either 
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Please turn the power off, and allow the projector to cool down 
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							59
Phenomena that may be easy to be mistaken for machine defects (continued)
Phenomenon Cases not involving a machine defectReference
page
Sound does not 
come out.
The signal cables are not correctly connected.
Correctly connect the audio cables.12,13
The MUTE function is working.
Restore the sound pressing the MUTE or VOLUME button 
on the remote control.18
The volume is adjusted to an extremely low level.
Adjust the volume to a higher level using the menu function 
or the remote control.18
The AUDIO setting is not correct.
Correctly set the AUDIO item in the SETUP menu.36
No pictures are 
displayed.
The lens cap is attached.
Remove the lens cover.17
The signal cables are not correctly connected.
Correctly connect the connection cables.12, 13
The brightness is adjusted to an extremely low level.
Adjust BRIGHTNESS to a higher level using the menu 
function or the remote control.25
The computer cannot detect the projector as a plug 
and play monitor.
Make sure that the computer can detect a plug and play 
monitor using another plug and play monitor.11
The BLANK screen is displayed.
Press the BLANK button on the remote control.22
Video screen
display freezes.The FREEZE function is working.
Press the FREEZE button to restore the screen to normal.22
Colors have a
faded- out
appearance, or
Color tone is 
poor.
Color settings are not correctly adjusted.
Perform picture adjustments by changing the COLOR 
TEMP, COLOR, TINT and/or COLOR SPACE settings, 
using the menu functions.26, 28,
32
COLOR SPACE setting is not suitable.
Change the COLOR SPACE setting to AUTO, RGB, 
SMPTE240, REC709 or REC601.32
Troubleshooting 
						

							60
Phenomena that may be easy to be mistaken for machine defects (continued)
Phenomenon Cases not involving a machine defectReference
page
Pictures appear 
dark.
The brightness and/or contrast are adjusted to an 
extremely low level.
Adjust BRIGHTNESS and/or CONTRAST settings to a 
higher level using the menu function.25, 26
The WHISPER function is working.
Select BRIGHT for the WHISPER item in the SETUP menu.26, 35
The lamp is approaching the end of its product 
lifetime.
Replace the lamp.50, 51
Pictures appear
blurry.
Either the focus and/or horizontal phase settings are 
not properly adjusted.
Adjust the focus using the focus ring, and/or H PHASE 
using the menu function.19, 30
The lens is dirty or misty.
Clean the lens referring to the section “Caring for the lens”.54
Troubleshooting
NOTE
is a unique characteristic of liquid crystal displays, and it does not constitute or 
imply a machine defect.