NEC LT81 - Manual (Page 38)

2. Remove the screw from the board cover.
3. Put the board in place and secure it with the four screws supplied
with the VK-LT board.
4. Attach the two foot caps to adjust projector height. After complet-
ing, put the projector back in the original position.
73
OPERATION 74
Mounting the Optional LT100 Viewer Board (VK-LT)
Before mounting the viewer board, you must first switch off the
main power and unplug the power cable.
To install the VK-LT Viewer board:
1. Turn the projector so that the bottom is up.