Toshiba TLP451 ユーザーズマニュアル

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Others
Before calling service
personnel
Check the following points before asking for
support service.
Refer also to “Trouble indications”. 
The power does not come on.
  • The power cord is disconnected.
Firmly plug in the power cord. 
  • The lamp cover is not attached correctly.
Attach the cover correctly. 
The power turns off while using the
projector.
  • The ambient temperature of the
projection room is too high.
Lower the ambient temperature of the
projection room, and turn the power
on.
No image appears.
  • The lens cover is on.
Take off the lens cover. 
  • The wrong input is selected.
Select the input source correctly. 
  • The muting mode is on.
Press MUTE to restore the picture. 
(Continued)
  • The “Brightness” adjustment is at its
darkest.
Make the “Brightness” adjustment. 
  • The source is not correctly connected to
the projector.
Connect the source correctly to the
projector. 
No sounds are heard.
  • The wrong input is selected.
Select the input source correctly. 
  • The audio muting mode is on.
  • The sound volume is at the minimum.
Adjust the sound volume on the
menu. 
  • The source is not correctly connected to
the projector.
Connect the source correctly to the
projector. 
The images are blurred. Focusing is
uneven.
  • The lens is dirty.
Clean the lens.
Use a lens cleaner to clean the lens. 
  • The picture is out of focus.
Focus the picture. 
  • The projection distance is not
appropriate.
Adjust the distance properly. 
  • The projecting light is not hitting the
screen squarely.
Adjust the projecting direction so that
the light hits the screen squarely. 
  • The “Brightness”, “Contrast”, “Sharpness”
or “Phase” adjustments are not correct.
Make the “Image” or “Picture”
adjustments. 
The pictures are dim.
  • The “Brightness” or “Contrast”
adjustments are not correct.
Make the “Picture” adjustments. 
  • The lamp life is ending.
Replace the lamp. 
The colors are faint. The colors are strange.
  • The “Color”, “Tint”, “R-Level”, “G-Level” or
“B-Level” adjustments are not correct.
Make the “Picture” adjustments. 
  • The lamp life is ending.
Replace the lamp.