NEC MT830 - Manual (Page 41)

E-40
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
Status indicator is lit or
blinking
Cross color in RGB mode
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 E-38.)
• 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 page E-
28.)
• 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 E-8 or E-13.)
• 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 E-38.)
• Make sure there are no obstacles between you and the projector.
• Stand within 7m of the projector.
See the Status Light message chart on page E-39.
If “Auto Mode” is off, turn it on. If “Auto Mode” is on, turn it off and adjust the image with the
Picture Adjustment icon and Fine Picture Adjustment icon.
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?