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Toshiba tlp 781 lcd projector with document camera Manual

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Before calling service personal
Check the following points before asking for support service. Refer also to "Trouble indications".
Symptom
The power does not come on.
The power turns off while
using the projector.
No image appears.
No sound is heard.
Desired input source cannot be
selected by the INPUT button.
Analog RGB(1) input or Y/P
B/
P
R input colors are not right.
Analog RGB(2) input image
does not appear.
Digital RGB input image does
not appear.
The image is blurred.
Focusing is uneven.
The picture is dim.
Cause
• The power cord is disconnected.
• The lamp cover is not attached correctly.
• The ambient temperature of the projection room is too high.
• The lens cover is on.
• The wrong input is selected.
• The muting mode is on.
• The Brightness adjustment is at its darkest.
• The source is not correctly connected to the projector.
• The wrong input is selected.
• The muting mode is on.
• The sound volume is at the minimum.
• The source is not correctly connected to the projector.
• Input is not set so that it can be selected with the INPUT button.
By default, only the Analog RGB(1) and Video input modes can be selected.
• The COMPUTER IN 1 connector's input setting is wrong.
• The COMPUTER IN 2 connector's input setting is wrong.
• The signal cable type is wrong.
• The COMPUTER IN 2 connector's input setting is wrong.
• The signal cable type is wrong.
• The lens is dirty.
• The picture is out of focus.
• The projection distance is not appropriate.
• The projecting light is not hitting the screen squarely.
• The "Brightness", "Contrast", "Sharpness" or "Phase" adjustments
are not correct.
• The "Brightness" or "Contrast" adjustments are not correct.
• The lamp life is ending.
Correction
Firmly plug in the power cord.
Attach the cover correctly.
Lower the ambient temperature of the projection room,
and turn the power on.
Take off the lens cover.
Select the input source correctly.
Press MUTE to restore the picture.
Make the "Brightness" adjustment.
Connect the source correctly to the projector.
Select the input source correctly.
Press MUTE to restore the sound.
Adjust the sound volume.
Connect the source correctly to the projector.
Set from the menu screen so that the source can be
selected with the INPUT button.
At the menu screen, set for the proper input signal type.
At the menu screen, set for the proper input signal type.
Use a proper signal cable.
At the menu screen, set for the proper input signal type.
Use a proper signal cable.
Clean the lens with a blower or lens cleaner, etc.
Focus the picture.
Adjust the distance properly.
Adjust the projecting direction so that the light hits the
screen squarely.
Make the "Picture" adjustments.
Make the "Picture" adjustments.
Replace the lamp.
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CONTENTS
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