This document introduces the features and characteristics of the NEC DT20 multi-function LCD projector.
This manual explains how to install, connect and operate the NEC DT20 LCD projector safely. It includes warnings, component descriptions, and step‑by‑step instructions for using the OHP scanner, PC input, DVD source and basic menu functions.
It also covers routine maintenance, lamp replacement, filter cleaning, troubleshooting tips and full technical specifications such as brightness, resolution, power requirements and environmental limits. This manual is written in Spanish.
| Model | DT20 |
|---|---|
| Type | LCD projector with 3 primary colors |
| Panel size | 1.0 in diagonal, 4:3 aspect |
| Resolution (pixels) | 786,432 (1,024 × 768) × 3 |
| Zoom lens | 1 × to 1.25 ×, f=36.5‑45.6 mm, F1.7‑2.2 |
| Lamp power | 260 W mercury lamp |
| Image size range | 32‑300 in diagonal (projection distance 1.4‑13.9 m) |
| Brightness | 2800 ANSI lumens |
| Audio output | 1 W × 2 stereo |
| Operating temperature / humidity | 0‑35 °C, 20‑80 % RH |
| Power supply | 100‑120 V / 220‑240 V AC, 50/60 Hz |
| Power consumption | 390 W (100‑120 V), 370 W (220‑240 V) |
| Input current | 4.5 A (100‑120 V), 2.2 A (220‑240 V) |
| Dimensions (W × D × H) | 400 mm × 315 mm × 145 mm |
| Weight | 7.3 kg |
Turn off the lamp, disconnect the power cable, wait at least one hour after the fan stops, then replace the lamp. Do not attempt replacement while the projector is powered.
The projector provides 2800 ANSI lumens of brightness.
It can be powered from 100‑120 V or 220‑240 V AC at 50/60 Hz.
Use a blower brush or lens‑cleaning paper; avoid paper towels or wipes that can damage the lens.