BenQ PDP46W1 User Guide - Page 36

12. Cleaning and Simple Troubleshooting: 12.1 Important: (1) Make sure that the power cable is removed from the jack before cleaning the Display. (2) Don't use volatile solvent (such as toluene, rosin and alcohol) to clean the Display, because such chemical material may damage the housing, screen glass and remote controller, and cause the peeling of the paint. 12.2 Cleaning of Housing and Remote Controller: (1) Use a soft cotton cloth for cleaning. (2) When the housing or remote controller is seriously contaminated, use a soft cloth moistened with diluted neutral cleaner and clean the Display. Wring water out of the cloth before cleaning to prevent water from penetrating into the housing. Wipe the Display with a dry cloth after the cleaning. 12.3 Cleaning of Screen: (1) Use a soft cotton cloth to clean the screen gently. (2) The screen glass is very fragile, so don't scrape it with any sharp object. Don't press or tap the screen to avoid cracking. When the screen is seriously contaminated, use a soft cloth moistened with diluted neutral cleaner and clean the Display. Wring water out of the cloth before cleaning to prevent water from penetrating into the housing. Wipe the Display with a dry cloth after the cleaning. 12.4 Simple Troubleshooting: Check the Display in accordance with the following instructions when it fails. Also check the peripherals to find out the cause of the failure. When the Display doesn't work after you take the measures below, contact with your dealer for assistance. Failure Measures Power cannot be turned on. (Power indication does not light) Check that both ends of the power cable are plugged into the jacks appropriately. "No Input Signal" message appears. Check that the signal line is connected appropriately. Check that the power of relevant peripherals are turned on. Check that the OSD option selected matches with the input The remote controller doesn't function normally. signal. Check that the polarity of the battery is correct. Check that the batteries do not exhaust. (Use new batteries.) Check that the remote controller is used within its operating range. Check that the remote controller is pointed to the Remote Control window of the Display. Check that there is no obstacles between the remote controller and the Remote Control window. For more information about the remote controller, refer to Flashing spots or stripes appear on the screen. Chapter 7. Check that there is no emitter sources (such as car, train, high voltage cable and neon lamp) or other possible interference sources that may affect your hi-fi equipment. Image color or quality deteriorates. Check that all the video settings are completed appropriately, such as brightness), contrast, color and other settings For more information about video settings, refer to "OSD Functions" of Chapter 7. C:\pdp \User Menu\UM_BenQ.doc 5/30/2002 8:42 PM 35 Wuys