NEC MT830 - Manual (Page 48)

48
Common Problems & Solutions
Problem
Does not turn on
No picture
Image isn’t square to the screen
Picture is blurred
Image is scrolling vertically,
horizontally or both
Remote control does not work
Check These Items
• Check that the cord is plugged in and that the power switch on the front panel is on.
• Ensure that the filter cover is installed correctly. (See page 86 or 90.)
• Check to see if the projector has overheated or the lamp usage exceeds 2100 hours. If there is insufficient ventilation around the
projector or if the room where you're presenting is particularly warm, move the projector to a cooler location.
Check the filter and clean it if necessary.
• Use the menu icons to select your source (Video, S-Video, RGB1, 2 or PC Card). (See pages 65 and 66.)
• Ensure your cables are connected properly.
• Use icons to adjust the brightness and contrast.
• Remove the lens cap.
• Reset the settings or adjustments to factory preset levels using the RESET icon on the Settings Menu.
• Reposition the projector to improve its angle to the screen.
• Use the keystone icon or the keystone button to correct the keystone distortion.
• Adjust the focus. (See page 20 or 29.)
• Reposition the projector to improve its angle to the screen.
• Ensure that the distance between the projector and screen is within the adjustment range of the lens.
• Use icons to select the source you want to input.
• Make sure the recalled Custom Memory supports the current input signal.
• Install new batteries. (See page 86 or 90.)
• Make sure there are no obstacles between you and the projector.
• Stand within 23 feet (7m) of the projector.
To Contact Your NEC Service Representative, Call 1-800-836-0655
TROUBLE SHOOTING
93
94
When using the Viewer function
Problem
No picture
Part of a slide is not
displayed
No effect sound
Check These Items
• Is the viewer board been seated in the LCD projector completely?
• Is "PC CARD" selected from the Source menu?
• Is the flash memory card seated in the card slot completely?
• Are slide data being transferred to the flash memory card?
• Have the contents of the flash memory card been destroyed?
• While an image with over 1024 ן768 dots is projected, several lines of information will be lost. Use the supplied software to
change the image to 1024 ן768 dots in size.
• Is the sound volume set to the minimum level?
Problem
Status indicator is lit or
blinking
Cross color in RGB mode
Check These Items
See the Status Light message chart on pages 91 and 92.
If “Auto Picture” is off, turn it on. If “Auto Picture” is on, turn it off and balance the image with the Picture Adjustment icon and
Fine Picture Adjustment icon.