Toshiba TDP-T420 Benutzerhandbuch - Seite 26
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Troubleshooting
If you think something is wrong, check the followings before contacting customer service.
Please see "Trouble indications"
as well.
p.49
If This Happens
No power
•
Is the power cord plugged in? Is it connected to the projector?
•
Is the main power switch turned on?
•
Is the outer lamp cover attached properly?
Power goes out
•
Is the ambient temperature high?
during use
•
Is the air intake or air exhaust blocked?
No picture
•
Is the input source selected correctly? (When [Auto input search]
is [Off])
p.41
•
Is the mute function on?
•
Is the brightness setting minimized?
•
Are the connections set up correctly?
•
Are all the connected devices functioning properly?
No audio
•
Is the mute function on?
•
Is the volume setting minimized?
•
Are the connections set up correctly?
•
Are all the connected devices functioning properly?
Picture not
•
Is the input signal supported by the projector?
displayed
•
Is there something generating an abnormal video signal, for
correctly
instance the video tape?
Picture blurred
•
Is the lens dirty?
Part of picture
•
Is the lens focus adjusted optimally?
out of focus
•
Is the projection distance within the projector's supported range?
p.21
•
Is the projector's screen placement angle tilted too far?
•
Are the sharpness or sampling phase adjustments off?
Image is dark
•
Are the brightness or contrast adjustments off?
•
Is the lamp nearing the end of its service life?
Colors too light
•
Are the color, tint, R-level, G-level, or B-level adjustments off?
Bad shading
•
Is the screen dirty?
•
Is the blackboard mode set properly?
•
Is the lamp nearing the end of its service life?
Control panel key
•
Is the key lock function on?
doesn't work
Check
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p.53 p.54
p.49
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p.43
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50
If This Happens
Remote control
doesn't work
p.36
Check
•
Is the remote control code identical with the projector's code?
•
Are the remote control's batteries drained?
•
Are the batteries inserted into the remote control correctly?
•
Is the remote control being used within the effective range?
•
Are there any obstructions between the remote control and
projector?
•
Are there any fluorescent or other bright lights shining at the
projector's infrared remote sensor?
51
p.42
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