User manual BENQ DX550

[. . . ] Digital Multimedia Projector User's Manual Thank you very much for purchasing this DLPTM Technology Projector. After reading this manual, keep it for future reference. Outline This DLPTM Technology Projector can display various computer signals and NTSC/PAL/SECAM video signals. Features (1) (2) (3) (4) (5) (6) (7) High brightness High resolution Compact size, light weight for portability RGB input terminal RS232 Communication Mouse emulation Complies with VESA DDC1/2B specifications User's Manual Copyright Copyright © 2002. No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system or translated into any language or computer language, in any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual or otherwise, without the prior written permission of this company. Disclaimer This Corporation. makes no representations or warranties, either expressed or implied, with respect to the contents hereof and specifically disclaims any warranties, merchantability or fitness for any particular purpose. [. . . ] · Do not mix new and old or different types of batteries. Figure 15 Battery replacement process Operation 11 User's Manual Remote Control Range The remote sensors are located on the back of the unit. It can function in a range 50 degrees horizontal and 30 degrees vertical relative to a line that is a right angle to the remote sensor. The distance between the remote control and remote sensor must be shorter than four meters (13 feet). Figure 16 Range Usage and Replacement of Lamp The light source lamp has a limited service life. The picture will become dark or the color will fade after the lamp has been used for a long time. Lamp in excess of service hours When the LED light is a continuous red, it means the lamp has exceeded 1500 service hours. After this light appears, it is advisable to replace the projection lamp as soon as possible. "PLEASE CHANGE A NEW LAMP. AND RESET THE LAMP TIMER" will be displayed on the screen if the lamp has been operated for 1400 hours (see figure 17). Figure 17 Lamp replacement warning signal "PLEASE CHANGE A NEW LAMP. THE POWER WILL TURN OFF AFTER 20 HOURS" will be displayed on the screen if the lamp has been operated for 1480 hours. Figure 18 Lamp replacement warning signal "PLEASE CHANGE A NEW LAMP" will blink on the screen together with a red LED if the lamp has been operated for more than 1500 hours (see figure 19). The warning message will display for 30 seconds every 5 minutes and after turn on 10 minutes, "Out OF LAMP USAGE TIME, POWER OFF AUTOMATICALLY IN 30 SECONDS" will be displayed on Figure 19 Lamp replacement warning the screen 30 seconds and power off automatically. (All of the above signal messages will display for 30 seconds, but each message will be displayed whenever you turn on the lamp again. ) 12 Operation User's Manual 2. Lamp is not well attached If the LED blinks rapidly, it indicates that the lamp is not attached properly. Temperature is too high If the projector's internal temperature is too hot to operate safely, the LED will blink slowly for one minute and then the lamp will turn off automatically. Normal status If the LED light is off, it means the lamp and temperature inside the projector are normal. Caution: The lamp indicator will light up when the lamp becomes too hot. Turn off the power and let the projector cool for 45 minutes, then turn it on again. Replacing the Lamp Replacing the lamp When replacing the lamp, turn off the projector and unplug the AC cord. Caution: · Dispose of used lamps in accordance with local authorities. · As the lamp is made of glass, do not apply shocks to it or scratch it. · Also, do not use an old lamp, as this could cause the lamp to explode. · If it seems that the lamp has exploded (for example, an explosive sound is heard), disconnect the power cord from the outlet and ask your dealer to replace the lamp. [. . . ] Press the magnify "-" button, and the size of the magnified image will be reduced by 50 percent. To return to the normal display mode, press the "Return" button. If users connect the PS2 (ADB) mouse cable on the projector with the PC/Notebook (Macintosh/ Powerbook) mouse port, the disk pad will be able to function as a PC/Notebook (Macintosh/ Powerbook) mouse. When an image has been magnified, press the "Disk Pad" button to move around the display area (the mouse function is not available when magnify function is on). [. . . ]