TroubleshootingFor the sake of time and cost, it is strongly recommended that you check outthe problem by yourself according to the instructions listed hereunder beforecontacting the after-sales service for technical assistance.Note: Production of the screen requires high and precision technologies. However,there might be some dark or bright (red, blue or green) spots, or some anomalistic stripes orspots. This is not defect. If the TV set is used in an area 2,400 meters above the sea level wherethe air pressure is below 750hpa, the picture on the screen may be affected and a muffled soundmight be produced. These phenomena might happen in the area 1,500 meters above the sealevel. This is resulted from difference between air pressures inside and outside the display. Thisis not a defect covered by the limited warranty.NOTEDesign and specifications are subject to change without notice.The dimension in this manual is a approximation.Note: Do not leave the television with static picture in an extended period as it mayresult in residual image on your television screen.51Problem Possible remediesPicture too big or smallOne speaker failureSlight sound from displayTurn on the power supply;Properly plug the TV set to the power socket;Check to see if the power cable of other appliance isplugged in the TV set. Make sure that the power cableof the TV set is properly connected.No picture,no soundGood picture,no soundDepress the volume button;Check out the audio frequency input signals.Failure of remotecontrollerCheck to see if the remote controller displayreceiving window are blocked by other objects andif batteries are properly loaded.No color, weakcolor or poor pictureDesignate the item of color from the Picture menuand depress the volume button;Keep the display and VCR separate a reasonable space;Activate some functions to store picture brightness;Make sure that the display and signal source areavailable and turned on.Excessive brightnessor darkness Adjust brightness or contrast.Adjust the setup of sizes.Balance the sound in the menu.It is a normal phenomenon.