Toshiba TDP-TW420U Owners Manual - Page 47

Lens and main unit cleaning WARNING • Request cleaning and maintenance of a ceiling-mounted unit from your projector dealership. Attempting to clean or replace the lamp in a high location by yourself may cause you to fall, resulting in injury.  Lens cleaning • Clean the lens with a commercially available blower and/or lens cleaner. • The lens is easily scratched, so do not rub it with hard objects, or strike it.  Main unit cleaning • Unplug the power cord before cleaning the main unit. • Wipe dirt off the main unit gently with a soft cloth. • Do not wipe the main unit with a damp cloth. Doing so may allow water to get inside, resulting in an electric shock or unit failure. • Do not use benzene, thinner and the like as they may deform or discolor the unit or damage the paint surface. • Do not use a chemically saturated cloth. 92 Others Trouble indications The indicator illuminates and a beep sound informs you of internal abnormalities. No power ⇒ Problem with projector (Off) • Unplug the power cord, and contact your dealer. (Red lit) (Red flashing) Or (Red lit) (Red lit) Lamp went out during use, or won't come on ⇒ Lamp temperature is high so that it is difficult to turn on, the lifetime of the lamp has ended or the projector is malfunctioning. • Unplug the power cord and wait for a short while, then turn the power back on. • If a lamp burns out, replace it with a new one. (Red lit) (Red flashing) (Red lit) (Green flashing) Power went out during use ⇒ Internal overheating, or the outside temperature is too high. • Place the projector so that the air intake and exhaust are not blocked. • Unplug the power cord and wait for a short while, then turn the power back on. The icon will appear before the power goes out. Power went out during use ⇒ Problem with internal cooling fan. • Unplug the power cord, and contact your dealer. The icon will appear before the power goes out. (Red lit) (Orange flashing) Power went out during use, or power won't come on ⇒ The lamp cover is not properly attached. • Unplug the power cord, and reattach the lamp cover. p.90 (Red lit) (Orange lit) Or (Orange flashing) Power went out during use ⇒ Problem inside the projector. • Unplug the power cord and wait for a short while, then turn the power back on. • If the above action will not clear the problem, unplug the power cord, and contact your dealer. The icon will appear before the power goes out. Note • After there is an abnormal indication, the abnormal status remains until the main power switch is turned off. 93 Others