Key facts
- Brand
- NEC
- Model
- LT140
- Industry
- Electronics
- Documents
- 11
- Languages
- SV · ES · IT · DE · FR · EN
- Last added
- 2012-05-10
Start here

LT140 Projector Quick Connect Guide
This Quick Connect Guide shows how to attach the power cable, the 15‑pin signal cable, and adjust the projector's focus, zoom, and keystone settings. It also explains how to power the unit on and off safely.
The optional LT40RT remote control mouse kit lets you operate the computer's mouse from the projector. Instructions cover connecting the serial cable, using the remote's buttons, and re‑activating the computer's built‑in mouse control.
NEC LT140 specifications
| LED indicator | blinks when any button is pressed |
|---|---|
| Auto shutoff timer | lights turn off after 10 seconds of inactivity |
| Auto Adjust function | adjusts vertical/horizontal position, clock frequency/phase, and resolution |
| Computer/PJ select | toggles mouse button mode between projector and computer |
All NEC LT140 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
- NEC LT140 Remote Control User Manual 65 p
- NEC MultiSync LT84/LT140 Projector User Manual 43 p
- NEC LT140 Remote Control User Manual 65 p
- NEC LT140 Remote Control User Manual 65 p
- NEC LT140 User Manual 65 p
- NEC LT140 Remote Control User Manual 65 p
- NEC LT84/LT140 User Manual 43 p
- NEC LT140 Remote Control User Manual 65 p
- NEC LT140 Remote Control User Manual 59 p
The shortest path to a working setup, usually only a few pages.
Questions answered in these manuals
How do I automatically adjust the projected image?
Press the AUTO ADJUST button; it automatically adjusts vertical/horizontal position, clock frequency/phase, and resolution when the image is off‑center, has vertical bars, or flickers.
How can I switch the mouse button mode between projector and computer?
Press the COMPUTER/PJ SELECT button; it lights red and changes the mouse buttons to projector mode, and pressing it again returns to computer mode.
How do I replace the lamp?
Turn the projector off, wait at least one minute, then follow the instructions on page SW‑33 to replace the lamp safely.
How can I connect a USB mouse to the projector?
Connect the mouse to the USB‑terminal; the port complies with the USB 1.0 specification.
How do I switch between projector and computer mode?
Press the "ORDENADOR/SELECCIONAR PJ" button to toggle between projector (red) and computer (default) modes.
How do I switch between projector and computer mode?
Press the "ORDENADOR/SELECCIONAR" button to toggle between projector (red) and computer mode.
