User Manual BDL5530ELRETURN TO THE CONTENTS7.2. 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 withVGA.1. Plug in the power cord.2. Make sure the power switch is switched on.3. Connect a signal connection to the display.Interference displayed onthe display or audible noiseis heardCaused by surrounding electricalappliances, traffic or fluorescent lights.Move the display to another location to see ifthe interference is reduced.Color is abnormal The signal cable is not connected properly. Make sure that the signal cable is attachedfirmly to the back of the display.Picture is distorted withabnormal patterns1. The signal cable is not connectedproperly.2. The input signal is beyond thecapabilities of the display.1. Make sure that the signal cable is attachedfirmly.2. Check the video signal source to see if it isbeyond the range of the display. Pleaseverify its specifications with this display’sspecification section.Display image doesn’t fill upthe full size of the screenThe zoom mode is not correctly set. Use the Zoom mode or Custom zoomfunction in the Screen menu to fine-tunedisplay geometry and time frequencyparameter.Can hear sound, but nopictureImproperly connected source signal cable. Make sure that both video inputs and soundinputs are correctly connected.Can see picture but nosound is heard1. Improperly connected source signalcable.2. Volume is turned all the way down.3. Mute is turned on.4. No external speaker connected.1. Make sure that both video and sound inputsare correctly connected.2. Use VOL UP/VOL DOWN button tohear sound.3. Switch Mute off by using the MUTEbutton.4. Connect external speakers and adjust thevolume to a suitable level.Some picture elements donot light upSome pixels of the display may not turn on. This display is manufactured using anextremely high level of precision technology:however, sometimes some pixels of the displaymay not display. This is not a malfunction.After-Images can still beseen on the screen after thedisplay is powered off.(Examples of still picturesinclude logos, video games,computer images, andimages displayed in 4:3normal mode)A still picture is displayed for an overextended period of timeDo not allow a still image to be displayed foran extended period of time as this can cause apermanent after-image to remain on thedisplay. Refer to 4.2.5.CONFIGURATION 1MENU for further details.