Hitachi Cp-X5021n Projector Users Manual

91
Maintenance
Cleaning and replacing the air filter
Please check and clean the air filter periodically. When the indicators or a 
message prompts you to clean the air filter, comply with it as soon as possible.
The air filter of this projector consists of a filter cover and a filter unit with two 
types of filter. If one or both of the filters are damaged or heavily soiled, replace 
the filter unit with a new one.
Request for a filter unit with the following type number from your dealer when 
purchasing a new...

92
Maintenance
► Before taking care of the air filter, make sure the power cable 
is not plugged in, then allow the projector to cool sufficiently.
►Use only the air filter of the specified type. Do not use the projector without the 
air filter or the filter cover. It could result in a fire or malfunction to the projector.
►Clean the air filter periodically. If the air filter becomes clogged by dust or the 
like, internal temperatures rise and could cause a fire, a burn or malfunction to 
the projector.WARNING
•...

93
Maintenance
Replacing the internal clock batter y
This projector has internal clock that uses a battery. When 
the clock of the network function does not work correctly, 
please try solution by replacement of the battery: HITACHI 
MAXELL, part number CR2032 or CR2032H.OPEN
CLOSE
OPEN
CLOSE
OPEN
CLOSEOSELOSE
OPEN
CLOSE
Raised dot
Battery Knob
Battery     
Cover
1. 
Turn the projector off, and unplug the power cord. Allow 
the projector to cool sufficiently.
2. 
After making sure that the projector has...

94
Maintenance
Other care
In order to ensure the safe use of your projector, please have it cleaned and 
inspected by your dealer about once every year.
1.Turn the projector off, and unplug the power cord. Allow the projector to cool 
sufficiently.
2.After making sure that the projector is cool adequately, lightly wipe the lens 
with a commercially available lens-cleaning wipe. Do not touch the lens 
directly with your hand. If the lens is flawed, soiled or fogged, it could cause deterioration of display...

95
Troubleshooting
Troubleshooting
If an abnormal operation should occur, stop using the projector immediately.
Otherwise if a problem occurs with the projector, the following checks and measures are 
recommended before requesting repair. 
If this does not resolve the problem, please contact your dealer or service company. They 
will tell you what warranty condition is applied.
►Never use the projector if abnormal operations such as smoke, 
strange odor, excessive sound, damaged casing or elements or...

96
Message Description
The internal temperature is rising. 
Please turn the power off, and allow the projector to cool 
down at least 20 minutes. After having confirmed the 
following items, please turn the power ON again. 
 • Is there blockage of the air passage aperture? 
 • Is the air filter dirty? 
 • Does the peripheral temperature exceed 35°C?
If the same indication is displayed after the remedy, please 
set FAN SPEED of the SERVICE item in the OPTION menu 
to HIGH.
A note of precaution when cleaning...

97
Troubleshooting
Regarding the indicator lamps
When operation of the LAMP, TEMP and POWER indicators differs from usual, 
check and cope with it according to the following table.
For the SECURITY indicator, see SECURITY INDICATOR in the SECURITY menu.
POWER 
indicatorLAMP 
indicatorTEMP 
indicatorDescription
Lighting
In 
Orange
Turned
offTurned
offThe projector is in a standby state.
Please refer to the section “Power on/off”.
Blinking
In 
Green
Turned
offTurned
offThe projector is warming up.
Please...

98
Troubleshooting
Regarding the indicator lamps (continued)
• When the interior portion has become overheated, for safety purposes, 
the projector is automatically shut down, and the indicator lamps may also be 
turned off. In such a case, disconnect the power cord, and wait at least 45 minutes. 
After the projector has sufficiently cooled down, please make confirmation of the 
attachment state of the lamp and lamp cover, and then turn the power on again.NOTE
POWER 
indicatorLAMP 
indicatorTEMP...

99
Troubleshooting
Phenomena that may be easy to be mistaken for machine defects
About the phenomenon confused with a machine defect, check and cope with it 
according to the following table.
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.15
The main power source has been interrupted during 
operation such as by a power outage (blackout), etc.
Please disconnect the power plug from the...

100
Troubleshooting
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.10 ~ 14
The MUTE function is working.
Restore the sound pressing MUTE or VOLUME +/- button 
on the remote control.19
The volume is adjusted to an extremely low level.
Adjust the volume to a higher level using the menu function 
or the remote...