NEC NP-M402X Portable
Conference Room Projector
April 25, 2014
Good connectivity. The M402X's back panel offers a bit more than a typical set of connectors by today's standards.
1 VGA IN (for RGB or component)
1 RCA composite
1 USB A (for reading files from USB memory keys or for an $80 optional Wi-Fi dongle.)
1 VGA OUT (monitor loop-through)
1 USB B (for mouse control from the remote plus USB direct display.)
1 LAN (for image and audio data and network control)
1 Stereo mini plug IN (paired with the VGA port by default)
1 RCA stereo IN
1 Microphone mini plug IN
1 Stereo mini plug OUT
1 RS-232 (for external control)
1 VESA 3D RF sync
Setting up the M402X is easy, with the 1.7x zoom giving you a lot more flexibility than most models offer for how far you can put the projector from the screen for a given size image. For most of my tests at the native 4:3 aspect ratio, I used a 98-inch diagonal image with maximum zoom (full widescreen) and the projector 117" from the screen.
Both the zoom and focus rings offer smooth control. However, the focus changes a lot with very little movement, so even though it's not hard to get crisp focus over the entire screen, it's a little harder than it should be to get it just right.
With the projector sitting on a table, the vertical offset puts the bottom of the image roughly 15% of the screen height above the midline of the lens. If you need to, you can move the image up with a drop-down foot on the front of the projector. In a nice touch, the foot also includes a screw adjustment for fine control. You can also move the image down by adjusting the screw-on feet at the back. As a finishing touch, you can adjust image shape if necessary. The menus offer both horizontal and vertical digital keystone controls and a choice of setting the feature to automatic or adjusting both settings manually.