Installation guide for NEC NP-M311X projector lamp

Written by
  • Shelagh M.
  • 8 years ago

 nec-m311_projector_NEC_NP15LP_projector_lampWhen it’s time to change the NEC NP-M311X projector lamp this handy guide will help you out.

Be ready with an authentic lamp

Start off buying an authentic OEM NEC NP-311X projector lamp. Avoid any generic counterfeits created with substandard toxic materials (including the carcinogenic Krypton-85). These lamps shorter life, are prone to explosions and often damage the sensitive electronics in your NEC NP-311X projector. Save yourself the hassle and buy authentic!

Find this lamp sold on Amazon by these authorized dealers:

Know the warning signs

Your NEC NP-311X projector lamp uses the NEC NP15LP projector lamp. When it’s reaching end of life you’ll see the following warning on screen message: LAMP HAS REACHED THE END OF ITS USABLE LIFE. PLEASE REPLACE THE LAMP AND FILTER. The LAMP indicator will also blink red. If on screen colours looks off or of the  picture is faint or has deteriorated replace the NEC NP-311X projector lamp immediately.

Track projector lamp life

NEC_NP-311X_check_NECNP15LP_projector_lamp_usageThe NEC NP-311X projector  uses NEC NP15LP projector lamp. You can track the hours left for the project lamp with the Usage Time menu.

  • Go to INFO menu
  • Scroll down to USAGE TIME to display the LAMP LIFE REMAINING and LAMP HOURS USED.
  • The progress indicator shows the percentage of remaining bulb life:
  • When the lamp usage reaches 0, the Lamp Life REMAINING starts a count down from 100 hours
  • When the count down reaches 0, the projector will turn off and not turn on.

Changing the NEC NP15LP projector lamp

NOTE: New air filters are shipped with the lamp and it’s recommended you replace them at the same time.
Follow these important safety instructions before installing the new NEC NP15LP projector lamp

  • turn off the NEC NP-311X projector.
  • unplug the projector from its power source.
  • unplug the power cable.
  • wait until the projector is cool to the touch to avoid getting burned.

NEC_NP-311X_NEC_NP16LP_projector_lamp_remove_lamp_screwLoosen the NEC NP-311X projector lamp cover screw.
NEC_NP--311X_projector_lamp_NEC_NP16LP_remove_lamp_cover
Push and slide the NEC NP-311X projector cover off.
NEC_NP-311X_remove_NEC_NP16LP_projector_lamp_screws
Loosen the two screws holding the NEC NP15LP projector lamp in place. (The screws will not come out only loosen.)
NEC_NP-311X_remove_NEC_NP16LP_projector_lamp
 
Remove the projector lamp by holding the indent and pulling up.
NOTE: Your NEC NP15LP lamp should be properly recycled. These lamps contain mercury and can’t be placed into common garbage.
NEC_NP-311X_projector_lamp_install_new_NEC_NP16LPInstall a new lamp housing into the NEC NP-311X projector, gently pressing the projector lamp housing into the socket. Take care not to touch the actual bulb as your finger prints can leave oil marks that burn black marks onto the bulb.
NEC_NP-311X_projector_tighten_NEC_NP16LP_projector_lamp_screws
Push the top center on the projector lamp to secure it. Tighten the screw on the projector lam
NEC_NP-311X_projector_replace_lamp_cover_NEC_NP16LP_projector_lamp
Re-attach the NEC NP-311X lamp cover by sliding the cover until it snaps into place. Tighten the screw on the lamp cover.

Replacing the filters

There are four filters in the NEC NP-311X projector:

  • Honeycomb hard filter – large and small
  • Accordion soft filter — large and small

Replace all four filters at the same time. Before replacing the filters wipe off any dust and dirt that came loose from the old filters. NOTE: The filters are made with two different types of material in the membrane. Both perform the same.
NEC_NP-311X_projector_lamp_NEC_NP16LP_remove_air_filterPush the catch to release the NEC NP-311X filter and gently pull it out.
 
NEC_NP-311X_projector_lamp_NEC_NP16LP_detach_filter_cover
The filter cover is fixed at six separate points in the projector. Bow the filter cover by pushing it slightly until it releases.
 
NEC_NP-311X_projector_lamp_NEC_NP16LP_replace_dark_filtersRemove the dark sponge filter and clean the filter unit and cover. Attach the new non-woven white material filters.
NEC_NP-311X_projector_lamp_NEC_NP16LP_replace_four_filters

  • Filter unit: Attach two honeycomb hard filters to the NEC NP-311X filter unit.
  • Filter cover: Attach the two accordion soft filters to the filter cover. Be sure to align the accordion slits with the protrusions of the filter cover.

 
NEC_NP-300X_projector_lamp_NEC_NP16LP_attach_filter_coverAttach the filter cover back to the filter unit. Align the filter until with the filter cover and push the protrusions into place. Make sure all the six mounting points are aligned properly.
NEC_M311X_NEC_NP16LP_attach_filter
Insert the two catches of the top of the filter into the groove of the cabinet. Push the filter until it clicks into place.
 

Reset the lamp timer

Once the NEC NP15LP projector lamp and NEC NP-300X projector filter have both been replaced you will need to reset the timer for both. You want the projector to be able to accurately track the projector lamp life.

NEC_M311X_NEC_NP15LP_lamp_timer

Clear usage hours and reset hours

  • Plug in the power cored into the wall outlet.
  • Turn on the projector.
  • From the MENU select RESET.
  • Choose CLEAR LAMP HOURS.
  • A confirmation message appears.
  • Select YES.

Reset the filter hours:

  • Scroll up to CLEAR Filter HOURS.
  • A second submenu will appear.
  • Select YES. Press the ENTER button.

Extending the life of the NEC NP-311X projector lamp

Get your newly installed NEC NP15LP projector lamp will last longer by choosing the ECO option. The ECO MODE increases projector lamp life by lowering the power consumption. There are three modes to choose from:

  • Auto Mode: 4000 hours
  • Normal: 5000 hours
  • Eco ModeL 8000 hours

Learn more tips to extend the life of the NEC NP15LP lamp.

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