Philips 4000 Series User Manual

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98BDL4650D7611.2. TroubleshootingSymptom Possible Cause RemedyNo picture is displayed 1. The power cord is disconnected.2. The main power switch on the back ofthe display is not switched on.3. The selected input has no connection.4. The display is in standby mode.1. Plug in the power cord.2. Make sure the power switch isswitched on.3. Connect a signal connection to thedisplay.Interference displayed on the display oraudible noise is heardCaused by surrounding electricalappliances or fluorescent lights.Move the display to another location tosee if the interference is reduced.Color is abnormal The signal cable is not connected properly. Make sure that the signal cable isattached firmly to the back of the display.Picture is distorted with abnormalpatterns1. The signal cable is not connectedproperly.2. The input signal is beyond thecapabilities of the display.1. Make sure that the signal cable isattached firmly.2. Check the video signal source to see ifit is beyond the range of the display.Please verify its specifications with thisdisplay’s specification section.Display image doesn’t fill up the full sizeof the screen1. The zoom mode is not set correctly.2. Scan Mode may be set incorrectly tounderscan.3. If the image exceeds the screen size,Scan Mode may need to be set toUnderscan.Use the Zoom mode or Custom zoomfunction in the Screen menu to fine tunedisplay geometry and time frequencyparameter.Can hear sound, but no picture Source signal cable is connectedimproperly.Make sure that both video inputs andsound inputs are correctly connected.Can see picture but no sound is heard 1. Source signal cable is connectedimproperly.2. Volume is turned all the way down.3. {Mute} is turned on.4. No external speaker connected.1. Make sure that both video inputs andsound inputs are correctly connected.2. Press [ ] or [ ] button to hear sound.3. Switch MUTE off by using the [ ]button.4. Connect external speakers and adjustthe volume to a suitable level.Some picture elements do not lightupSome pixels of the display are off. This display is manufactured usingan extremely high level of precisiontechnology: however, sometimes somepixels of the display may not display. Thisis not a malfunction.After-Images can still be seen on thedisplay after the display is powered off.(Examples of still pictures include logos,video games, computer images, andimages displayed in 4:3 normal mode)A still picture is displayed for an overextended period of timeDo not allow a still image to be displayedfor an extended period of time as this cancause a permanent after-image to remainon the display.