Hitachi Projector CP-A222WN User Manual

111
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.
►Before caring, make sure the power cord is not plugged in, 
and then allow the projector to cool sufficiently. The care in a high temperature 
state of the projector could cause a burn and/or malfunction to the projector.
►Never try to care for the inside of the projector personally. Doing is so 
dangerous. 
►Avoid wetting the projector or inserting...

11 2
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...

11 3
Message Description
The horizontal or vertical frequency of the input signal is 
not within the specified range.
Please confirm the specs for your projector or the signal 
source specs.
An improper signal is input. 
Please confirm the specs for your projector or the signal 
source specs.
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...

11 4
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.
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 wait.
Lighting
In 
Green
Turned
offTurned
offThe projector is in an on...

11 5
Troubleshooting
Regarding the indicator lamps (continued)
POWER 
indicatorLAMP 
indicatorTEMP 
indicatorDescription
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 sufficiently cooled down, please make 
confirmation of the following items, and then turn the power on again.
• Is there blockage of the air...

11 6
• 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 
indicatorDescription
Lighting
In 
Orange
Lighting
In 
Red...

11 7
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...

11 8
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.9 ~ 14
The MUTE function is working.
Restore the sound pressing MUTE or VOLUME +/- button 
on the remote control.22
The volume is adjusted to an extremely low level.
Adjust the volume to a higher level using the menu function 
or the remote...

11 9
Troubleshooting
Phenomena that may be easy to be mistaken for machine defects (continued)
Phenomenon Cases not involving a machine defectReference 
page
No pictures are
displayed.The signal cables are not correctly connected.
Correctly connect the connection cables.9 ~ 14
The brightness is adjusted to an extremely low level.
Adjust BRIGHTNESS to a higher level using the menu function.34
The computer cannot detect the projector as a plug-
and-play monitor.
Make sure that the computer can detect a...

120
Troubleshooting
Phenomenon Cases not involving a machine defectReference 
page
Video screen
display freezes.The FREEZE function is working.
Press FREEZE button to restore the screen to normal.29
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.35, 40
COLOR SPACE setting is not suitable.
Change the COLOR SPACE setting to AUTO,...