Manual Mitsubishi FD730U (page 40 of 48) (English)

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EN-40

Troubleshooting (continued)

No image appears on the screen. (continued)

Problem Solution

The screen for

entering the password

appears.

• PASSWORDFUNCTIONintheFEATUREmenuhasbeensettoDISPLAYINPUTto

enable the password lock.

 Enter the password or contact the person in charge of management of the

projector. (See page 34.)

“NO SIGNAL” is

displayed.

• Turnonthepoweroftheconnecteddevice,orcheckwhetherthereissomething

wrong with the connected device.

• Checkwhethertheexternaldeviceoutputsignals.(Checkthisespeciallywhenthe

external device is a notebook computer.)

• Checkthatthecableconnectedtotheexternaldeviceisn’tdefective.

• Checkthattheprojectorisconnectedtotheexternaldeviceusingthecorrect

terminals.

• Checkthattheconnecteddeviceiscorrectlyselectedastheinputsource.

• Whenanextensioncordisbeingused,replaceitwiththesuppliedcableandcheck

whether images are projected correctly. If images are projected correctly, use an RGB

signal ampliﬁer along with the extension cord.

Images are not displayed correctly.

Problem Solution

Projected images are

shaking.

Projected images are

displaced.

• Checkthatthecableconnectedtotheexternaldeviceisn’tintermittent.

• Connectthecable’splugwiththeexternaldevice’sconnectorrmly.

• PresstheAUTOPOSITIONbutton.

• Somecomputersoutputout-of-specsignalsonrareoccasion.AdjusttheSIGNAL

menu. (See page 29.)

Projected images are

distorted.

• Adjusttheprojectorandthescreensothattheyareperpendiculartoeachother.(See

page 14.)

Projected images are

dark.

• AdjustBRIGHTNESSandCONTRASTintheQUICKMENUortheIMAGEmenu.(See

page 27.)

• Replacethelamp.(Seepage37.)

Projected images are

blurred.

• Adjustthefocus.(Seepage16.)

• Cleanthelens.

• Pressthe or  button on the remote control to eliminate ﬂicker.

• AdjustTRACKINGandFINESYNC.intheSIGNALmenu.(Seepage29.)

• AdjustBRIGHTNESSandCONTRASTintheQUICKMENUortheIMAGEmenu.(See

page 27.)

• Adjusttheprojectorandthescreensothattheyareperpendiculartoeachother.(See

page 14.)

Afterimages persist on

the screen.

• This phenomenon is improved by keeping projecting an evenly bright image. (Such

“image burn-in” phenomenon where afterimages persist on the screen may occur if a

stationary image is kept displayed on the screen for a long time.)

White dots are seen

on projected images.

Black dots are seen

on projected images.

• ThisphenomenonisnormalforaDLP™projectorandisnotamalfunction.(Avery

small number of pixels may visibly or invisibly be persistent all the time, but they are

notasignofsystemmalfunctions.Over99.99%ofthepixelsareeffective.)

Fine streaks are seen

on projected images.

• Thisisduetointerferencewiththescreensurfaceandisnotamalfunction.Replace

the screen or displace the focus a little.

• Verticalorhorizontalstreaknoisemayappearontheprojectedimage,dependingon

the type of the DVD player, game console or computer you use. In such a case, you

can reduce such streak noise by enabling the LPF.

Projected images

become wavy.

• Connecttheplugsofthecablestoexternaldevicessecurely.

• Keeptheprojectorawayfromequipmentgeneratinginterferingradiowaves.

• Whenthekeystoneadjustmentiscarriedout,theimagemaynotbedisplayed

correctly because of the type of input signal. This isn’t a product malfunction. In this

case, readjust the keystone so that the amount of keystone correction is as small as

possible.

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Mitsubishi FD730U Manual

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