Magnavox 37MD311B Owner's Manual

Also see for 37MD311B: Quick guide Manual del propietario Manuel du propriétaire

38Troubleshooting GuideIf the unit does not perform properly when operated as instructed in this manual,check the following chart and all connections once before calling for service.Symptom RemedyTVNo power• Make sure the AC power cord is plugged in.• Make sure that the AC outlet supplies the proper voltage, plug another electrical appliance intothe AC outlet to ensure that AC outlet operates normally.• If a power failure occurs, unplug the AC power cord for 1 minute to allow the unit to reset itself.Control button's do not work. • Press only one button at a time. Do NOT press more than one button at the same time.• Ensure that no buttons on the remote are depressed and move freely.Power is ON but no screen image.• Check whether the connection of the antenna, cable receiver or satellite box is connectedcorrectly.• Check whether all the cables to the unit are connected to the correct output jack of your devicelike Blu-ray / DVD recorder.• Make sure that the selected input mode is connected to the working input jack.• Check if your computer is NOT in sleep mode when the input mode of this unit is in PC mode.Tap any key on the keyboard to wake up your computer.No picture or sound• Check if the power is on.• Check if the correct input mode is selected.• Check whether all the cables to the unit are connected to the correct output jack of your devicelike Blu-ray / DVD recorder.• View other TV channels. The problem might be limited to the broadcasting station or weak signalstrength.• Unplug the AC power cord and wait for about 1 minute, then plug the AC power cord and turnon the unit again.• Check whether the connection of the antenna, cable receiver or satellite box is connectedcorrectly.• Make sure that the selected input mode is connected to the working input jack.• Check if your computer is NOT in sleep mode when the input mode of this unit is in PC mode.Tap any key on the keyboard to wake up your computer.• Make sure that the sound is not muted. Press MUTE so that the volume bar and current volumelevel will appear on the TV screen.• Make sure that the volume is NOT set to [0] or [Mute]. If so, use VOL + / − to adjust the desiredvolume.No color• View other TV channels. The problem might be limited to the broadcasting station or weak signalstrength.• Adjust [Color] in the main menu.Adjusted [Picture] or [Sound]settings are not effective every timethe unit is turned on.• You must set [Home] in [Location]. ➠ p.24Otherwise, the settings you adjusted will not be memorized after the unit goes into standby mode.Sound okay, picture poor• Electrical interference from nearby appliances may affect picture quality.• Adjust [Contrast] and [Brightness] in the main menu.• View other TV channels. The problem might be limited to the broadcasting station or weak signalstrength.• For the best picture quality, watch "High Definition" wide screen programs.If the HD content is not available, watch "Standard Definition" programs instead.Picture okay, sound poor• View other TV channels. The problem might be limited to the broadcasting station or weak signalstrength.• Check if the audio cable is connected in correctly.You see a distorted picture or hearan unusual sound.• You may be getting interference from electrical appliances, automobiles, motorcycles or fluorescentlights.• Try moving the unit to another location to see if this is the cause of the problem.Ghosts, lines or streaks in picture• Electrical interference from nearby appliances may affect picture quality.• View other TV channels. The problem might be limited to the broadcasting station or weak signalstrength.You see "noise" or "trash" on thescreen.• When the capabilities of the unit exceed the capabilities of the digital broadcasting, the signal willbe increased to match the capabilities of the display of the unit. This may cause noise or trash.Different color marks on the TVscreen• View other TV channels. The problem might be limited to the broadcasting station, missing data orpixelation.You switch to a different input andthe volume changes.• This unit will memorize the volume level from the last time you adjusted it.• If the volume of the sound from another device is higher or lower, then the loudness will change.You switch to a different input andthe screen size changes. • This unit will memorize the viewing mode from the last time you used the particular input modes.The display image does not coverthe entire screen. • If you are watching TV or using the Composite Video, Component Video or HDMI with 480i Input,press FORMAT repeatedly to switch various screen modes.