NEC MultiSync MT840 Remote Control Battery Installation, Cleaning or Replacing the Filters

Remote Control Battery Installation

1. Press firmly and slide the battery cover off.

2.Remove both old batteries and install new ones (AA). Ensure that you have the batteries' polarity (+/–) aligned correctly.

3. Slip the cover back over the batteries until it snaps into place.

Cleaning or Replacing the Filters

The air-filter sponge keeps the inside of the MultiSync MT840/ MT1040 Projector free from dust or dirt and should be cleaned after every 100 hours of operation (more often in dusty conditions). If the filter is dirty or clogged, your projector may overheat.

CAUTION

•Turn off the power and unplug the projector before re- placing the filter.

•Only clean the outside of the filter cover with a vacuum cleaner.

•Do not attempt to operate the projector without a filter cover.

•Your projector will not operate unless the filter cover is installed correctly.

To clean the air-filter:

Vacuum the filter-through the filter cover.

USB

IN

AC

To replace the air-filter:

1. Remove the filter cover by pushing up on the catch of the cover until you feel it detach.

2. Reinstall the new filter cover.

NOTE: Do not detach the sponge from the filter cover. Do not wash the filter cover with soap and water. Soap and water will damage the the filter membrane. Before replacing the filter cover, remove dust and dirt from the projector cabinet. Keep out dust and during filter replacement.

AC

IN

7m

USB

IN

AC

E–34