Troubleshooting - NEC DV11G User Manual

Xga digital presenter

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Table Of Contents

Table of Contents

Before asking for repair, please make the following checks. If you cannot correct the trouble, contact your dealer.

Symptom

Image is not projected.

• Power plug is not properly connected to outlet.

• Power switch is not on.

• Projector or display is not properly connected.

• Brightness setting is not correct.

• 'EXTERNAL' or 'MEMORY' is selected in source selection. Select 'CAMERA'.

• Mode setting of image is not correct. Set according to projector or display to be

connected.

• Settings of dip switches on back panel are not correct.

Image is not focused.

• Material is too close to lens (it is 88mm or higher from stage surface).

• ZOOM has been changed after focusing. Carry out focusing with ZOOM set.

• In 'AUTO' of focusing, some object may not allow easy focusing.

Adjust by 'NEAR' or 'FAR' button of FOCUS.

• When projector is used, projector is not properly focused.

Adjust focus as instructed in projector manual.

• Camera image cannot be adjusted when FREEZE mode is selected ('REAL/

FREEZE' indicator off) or when 'EXTERNAL' or 'MEMORY' is selected in source

selection. Turn on REAL mode by pressing 'REAL/FREEZE' button, and select

camera image by pressing 'CAMERA' button of source selection.

Zoom cannot be ad-

• Zoom is at down end or up end.

justed.

• Digital zoom is selected.

Change magnification of digital zoom by pressing button step by step.

Image is blurred or dust

• Camera lens is dirty. Clean with commercially available camera lens cleaner.

is shown.

Image is dark

• Main light is not on.

• BRIGHTNESS is not properly adjusted.

Stripes appear in im-

• Interference between mesh points of printed matter and image of camera shooting

age of printed matter.

elements may sometimes produce color stripes. In such a case, change image

size a little by ZOOM.

Color tone is not cor-

• White balance is incorrectly adjusted.

rect.

• Negative mode or black-and-white mode is on.

Beating appears in im-

• Beating may appear in image when equipment is used near source of strong radio

age.

waves. Separate from such source.

Image cannot be ad-

• Camera image cannot be adjusted when FREEZE mode is selected ('REAL/

justed.

FREEZE' indicator off) or when 'EXTERNAL' or 'MEMORY' is selected in source

selection. Turn on REAL mode by pressing 'REAL/FREEZE' button, and select

camera image by pressing 'CAMERA' button of source selection.

• There are cases where BRIGHTNESS adjustment cannot raise brightness suffi-

ciently.

Operation does not oc-

• Correct operation may not follow if two buttons are pressed simultaneously or if a

cur at button press.

button is hit in quick succession. Operate buttons one by one with sufficient inter-

vals.

Remote control does

• Batteries are not set in remote control.

not work.

• Voltage of batteries is low.

• Batteries attached are for operation check only. Use batteries available on the

market.

• Remote control is operated outside usable range.

White or black dots ap-

• Due to characteristics of moving image high-pixel CCD, white or black dots may

pear in camera image.

appear on rare occasions and can be conspicuous when enlarged by digital zoom.

All indicators remain lit

• The equipment is in trouble. Contact your dealer for instructions.

even a few minutes af-

ter power on.