[. . . ] Please use suitable equipment for mounting the unit and ensure it is securely installed. 3. 6. Caution · · · Always open the lens shutter or remove the lens cap when the projector lamp is on. This projector is designed to operate safely within a bandwidth of 110 to 240 volts, but could fail if power cuts or surges of more than10 volts occur. In these high-risk areas, it is recommended that a power stabilizer unit be used in conjuction with this projector. Save this user's guide: The information contained in this manual will assist you in operating and maintaining your personal projector. [. . . ] Press Exit again to leave the menu system. 9 Introduction 5 BenQ DX/S660 DX/S650 User's Guide Adjuster The projector is equipped with 2 quick-release adjuster feet. Lift the projector up and press the adjuster button to release the adjuster. The adjuster will drop into position and be locked. Projector Features The projector integrates high-performance optical engine projection and a userfriendly design to deliver high reliability and ease of use. There may be danger of an explosion if batteries are incorrectly replaced. Replace only with the same or equivalent type recommended by the manufacturer. Dispose of used batteries according to the manufacturer's instructions. 8 Introduction BenQ DX/S660 DX/S650 User's Guide INSTALLATION Screen Size Place the projector at the required distance from the screen according to the desired picture size (see the table below). L Projection Distance Diagonal 30. 4 60. 8 91. 2 121. 5 151. 9 182. 3 213. 1 243. 1 273. 5 303. 9 Screen Size (Max. ) A. Height (cm) 61. 8 46. 3 123. 65 92. 7 185. 3 138. 9 247. 0 185. 2 308. 7 231. 6 370. 5 277. 9 432. 2 324. 18 494. 0 370. 5 555. 7 416. 7 617. 5 463. 11 L. Projection distance (cm) 100 200 300 400 500 600 700 800 900 1000 Screen Size (Min. ) B. Height (cm) 50. 7 38. 0 101. 3 76. 0 151. 9 113. 9 202. 5 151. 9 253. 2 189. 9 303. 8 227. 9 354. 4 266. 2 405. 1 303. 8 455. 7 341. 8 506. 3 379. 8 Connecting to Various Equipment HDTV description The projector is capable of displaying various High Definition TV display modes. Some of these sources are: · · Digital-VHS (D-VHS) player Satellite Dish HDTV receiver · · DVD player DTV tuners Most of these sources will provide an analog component video output, a standard VGA output, or a YPBPR (default) format. The projector is capable of accepting HDTV data through a YPBPR connector. Control Menu FUNCTION DESCRIPTION Language sets the language for the OSD control menus. Use the 3 / 4 key to select the desired language from among English, French, German, Italian, Spanish, Korean, Simplified Chinese and Traditional Chinese. OSD OSD Time Sets the length of time the OSD will remain active after the last time you pressed the button. Keystone hold When selected, preserves the last keystone correction value even when the projector is restarted. Mirror hold When selected, preserves the last mirror correction value even when the projector is restarted. Setup Blank time Determines the length of time before the projector is shut off when Blank is activated. Auto Off Sets the length of time before the system is shut off when no input is detected. User logo Enables the user to define his/her own logo screen that will display during strat-up. Three modes are available: Default (ACER logo), black screen and blue screen. Default Video Mode Lamp hour Returns all settings to their factory preset values. Shows lamp usage time. Language Operation 17 BenQ DX/S660 DX/S650 User's Guide 5. [. . . ] Press or to reset lamp hours or press EXIT to leave. Temp Information When the LED lights up, it is warning you of the following possible problems: 1. Turn off the projector and contact qualified service personnel for further help. 22 Maintenance BenQ DX/S660 DX/S650 User's Guide Service Information Accessories (included in the Standard Package) Description . 22. 91007. 001 Optional Accessories (not included in the Standard Package) Description of parts . 60. J3004. 001 Ordering Parts or Getting Information For product information, product assistance, service information, or to order accessories, please see the ACER corporation website at http://www. BenQ. com. Maintenance 23 BenQ DX/S660 DX/S650 User's Guide TROUBLESHOOTING Common Problems & Solutions PROBLEMS · · NO POWER · · · · · · · · · · · · · · · · · · TRY THESE SOLUTIONS Make sure the power cord is inserted snuged into the AC adapter socket. [. . . ]