Hitachi Projector CP-EX251N User Manual

							81
Troubleshooting
Regarding the indicator lamps
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POWER 
indicatorLAMP 
indicatorTEMP 
indicatorDescription
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Orange
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Blinking
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Green
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offThe projector is warming up.3OHDVHZDLW
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Green
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Blinking
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Orange
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offThe projector is cooling down.3OHDVHZDLW
Blinking
In 
Red
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The projector is cooling down. A certain error 
has been detected.
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Blinking
In 
Red
or
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The lamp does not light, and there is a possibility 
that interior portion has become heated.
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Replacing the lamp
Blinking
In 
Red
or
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Red
Blinking
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Red
7XUQHG
off
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							82
Troubleshooting
Regarding the indicator lamps (continued)
POWER 
indicatorLAMP 
indicatorTEMP 
indicatorDescription
Blinking
In 
Red
or
/LJKWLQJ
,Q
Red
7XUQHG
offBlinking
In 
Red
The cooling fan is not operating.3OHDVHWXUQWKHSRZHURIIDQGDOORZWKHSURMHFWRUWR
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Blinking
In 
Redor
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Red
7XUQHG
off/LJKWLQJ
,QRed
There is a possibility that the interior portion 
has become heated.
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blinking in Red
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							84
Troubleshooting
Resetting all settings
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							85
Troubleshooting
Phenomena that may be easy to be mistaken for machine defects (continued)
Phenomenon Cases not involving a machine defectReference 
page
6RXQGGRHV
QRWFRPHRXWThe signal cables are not correctly connected.
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a
The MUTE function is working.
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22
The volume is adjusted to an extremely low level.

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The AUDIO SOURCE/SPEAKER setting is not correct.
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GLVSOD\HGThe signal cables are not correctly connected.
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a
The brightness is adjusted to an extremely low level.

The computer cannot detect the projector as a Plug-
and-Play monitor.

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The BLANK screen is displayed.
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COMPUTER IN2 is set to MONITOR OUT.
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							86
Phenomenon Cases not involving a machine defectReference 
page
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GLVSOD\
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SRRUColor settings are not correctly adjusted.
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COLOR SPACE setting is not suitable.
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3LFWXUHV
DSSHDUGDUNThe brightness and/or contrast are adjusted to an 
extremely low level.
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The projector is operating in Eco mode.
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2))LQWKH6(783PHQX47
The lamp is approaching the end of its product 
lifetime.
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3LFWXUHV
DSSHDUEOXUU\Either the focus and/or horizontal phase settings are 
not properly adjusted.

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The lens is dirty or misty.
&OHDQWKHOHQVUHIHUULQJWRWKHVHFWLRQCaring for the 
lens
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Troubleshooting
Phenomena that may be easy to be mistaken for machine defects (continued) 
						

							87
Phenomenon Cases not involving a machine defectReference 
page
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VXFKDV
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VWULSHVDSSHDU
RQVFUHHQWhen the projector is operating in Eco mode, 
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47
The OVER SCAN ratio is too big.
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Excessive VIDEO NR.
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The FRAME LOCK function cannot work on the 
current input signal.
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44
56&GRHV
QRWZRUNThe SAVING function is working.
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							89
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