Toshiba Data TDP-T420 - Manual (Page 26)

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Other
s
If you think something is wrong, check the followings before contacting customer service.
Please see “
Trouble indications” p.49 as well.
If This Happens Check
No power Is the power cord plugged in? Is it connected to the projector?
Is the main power switch turned on?
p.24
Is the outer lamp cover attached properly? p.45
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Power goes out
during use Is the ambient temperature high? p.49
Is the air intake or air exhaust blocked? p.49
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No picture Is the input source selected correctly? (When [Auto input search]
is [Off])
p.41
Is the mute function on? p.32
Is the brightness setting minimized? p.36
Are the connections set up correctly? p.22
Are all the connected devices functioning properly?
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No audio Is the mute function on? p.32
Is the volume setting minimized? p.27
Are the connections set up correctly? p.22
Are all the connected devices functioning properly?
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Picture not
displayed
correctly Is the input signal supported by the projector? p.53 p.54
Is there something generating an abnormal video signal, for
instance the video tape?
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Picture blurred
Part of picture
out of focus Is the lens dirty? p.49
Is the lens focus adjusted optimally? p.27
Is the projection distance within the projector’s supported range?
p.21
Is the projector’s screen placement angle tilted too far? p.21
Are the sharpness or sampling phase adjustments off? p.36
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Image is dark Are the brightness or contrast adjustments off? p.36
Is the lamp nearing the end of its service life? p.43
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Colors too light
Bad shading Are the color, tint, R-level, G-level, or B-level adjustments off? p.36
Is the screen dirty?
Is the blackboard mode set properly?
p.41
Is the lamp nearing the end of its service life? p.43
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Control panel key
doesn’t work Is the key lock function on? p.43 •
Troubleshooting
If This Happens Check
Remote control
doesn’t work Is the remote control code identical with the projector's code? p.42
Are the remote control’s batteries drained?
Are the batteries inserted into the remote control correctly?
p.19
Is the remote control being used within the effective range? p.19
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?
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