Toshiba T620 Manuel du propriétaire - Page 34

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Before calling service personnel

If you think something is wrong, check the following before contacting customer service.

Please see "Trouble indications"

as well.

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If This Happens

• Is the power cord plugged in? Is it connected to the projector?

No power

• Is the lamp cover loose?

Power goes out

• Is the ambient temperature high?

• Is the air filter clogged?

during use

• Is the air intake or air exhaust blocked?

• Is the projector turned on?

No picture

• 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 projector turned on?

• Is the mute function on?

• Is the volume setting minimized?

• Are the connections set up correctly?

• Are all the connected devices functioning properly?

• Is the input signal supported by the projector?

Picture not

displayed

• Is the correct video mode selected?

• Is the correct signal format selected?

correctly

• Is the selecting of RGB or Y/P

• Is there something generating an abnormal video signal, for

instance the video tape?

• Is the lens dirty?

Picture blurred

Part of picture

• Is the lens focus adjusted optimally?

• Is the projection distance within the projector's supported range?

out of focus

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• Is the projector's screen placement angle tilted too far?

• Are the sharpness or sampling phase adjustments off?

• Are the brightness or contrast adjustments off?

Image is dark

• Is the lamp nearing the end of its service life?

• Are the color, tint, R-level, G-level, or B-level adjustments off?

Colors too light

• Is the screen dirty?

Bad shading

• Is the lamp nearing the end of its service life?

• Are the remote control's batteries drained?

Remote control

doesn't work

• 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?

• Is the correct operation mode set?

• Are there any fluorescent or other bright lights shining at the

projector's infrared remote sensor?

Check

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input correct?

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If This Happens

Mouse remote

control doesn't

work

Memory PC card

images aren't

projected

The wireless

LAN PC card

doesn't work

The images from the

document camera

are blurry

The images from the

document camera

are flickering

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Check

• Are the USB cable and mouse remote control receiver (Models

equipped with PC card slot) correctly connected?

• Do your computer and OS support USB?

• Is the remote control in [PC Mode]?

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• Are there any obstructions between the remote control and

projector/mouse remote control receiver?

• Is the memory PC card inserted correctly?

• Is a PC card not supported by the projector inserted?

• Is the CARD indicator red?

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• Are there any JPEG files saved on the memory PC card?

• Are the files too large or in an unsupported format for the

projector?

Convert them with the supplied software application.

• Is the wireless LAN PC card inserted correctly?

• Is a wireless LAN PC card not supported by the projector inserted?

The operation of cards other than the supplied product is not

guaranteed.

• Is the CARD indicator red?

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• Are the transmission mode and channel properly configured?

• Are there any obstructions between the computer and projector?

• Do your computer and OS support the supplied software

application?

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• Is the document imaging camera's lens dirty?

• Is the document imaging camera out of focus?

• Is the location of the object being focused too dark?

• Is there impact from the room's fluorescent lighting?

Turn off the fluorescent lights, or change the shutter speed

settings.

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