Chapter 1 Preparation — Precautions for useENGLISH - 21rDLP chipsf The DLP chips are precision-made. Note that in rare cases, pixels of high precision could be missing or alwayslit. Such a phenomenon does not indicate malfunction.f Directing a high-power laser beam onto the projection lens surface can damage the DLP chips.rDo not move the projector or subject it to vibration or impact while it is operating.Doing so may shorten the life of the built-in motor.rLight sourceThe light source of the projector uses lasers, and has the following characteristics.f Depending on the operating environment temperature, the luminance of the light source will decrease.The higher the temperature becomes, the more the luminance of the light source decreases.f The luminance of the light source will decrease by duration of usage.The time until when the luminance of the light source decreases by half differs depending on the setting of the[PROJECTOR SETUP] menu → [OPERATION SETTING] → [OPERATING MODE].The estimated time until when the luminance of the light source decreases by half is as follows.g When [OPERATING MODE] is set to [NORMAL] or [SILENT]: Approximately 20 000 hoursg When [OPERATING MODE] is set to [ECO]: Approximately 24 000 hoursg When [OPERATING MODE] is set to [LONG LIFE1]: Approximately 43 000 hoursg When [OPERATING MODE] is set to [LONG LIFE2]: Approximately 61 000 hoursg When [OPERATING MODE] is set to [LONG LIFE3]: Approximately 87 000 hoursThe luminance can be maintained as much as possible for the same runtime by setting the [PROJECTORSETUP] menu → [OPERATION SETTING] → [CONSTANT MODE] to [AUTO].This time is rough estimate when the projector is used without changing the [OPERATING MODE] setting, andwill vary depending on individual difference and usage condition.If brightness is noticeably reduced and the light source does not turn on, ask your dealer to clean inside theprojector or replace the light source unit.rComputer and external device connectionsWhen connecting a computer or an external device, read this manual carefully regarding the use of power cordsand shielded cables as well.
