This document is a user manual for the U4-232/U4-232h digital projector, providing information about its features and functions.
This manual explains how to safely install, set up, and operate the PLUS U4-232/U4-232h digital projector. It covers basic handling, connection methods, menu navigation, and maintenance procedures such as lamp replacement and security lock configuration.
Key sections include safety warnings, installation steps, image adjustment (keystone, aspect ratio, quick color), audio/video input connections, lamp eco‑mode, security lock password setup, and troubleshooting tips. Contact information for PLUS Vision customer support is provided at the end of the document. This manual is written in Japanese.