Magnavox 46MF401B owner manual Troubleshooting Guide

TROUBLESHOOTING

Troubleshooting Guide

If 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

Remedy

	• Make sure the AC power cord is plugged in.
No power	• Make sure that the AC outlet supplies the proper voltage, plug another electrical
		appliance into the 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 does 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.
	• Check whether the connection of the antenna, cable receiver or satellite box is
		connected correctly.
Power is ON but no screen	• Check whether all the cables to the unit are connected to the correct output jack of
		your device like BD / DVD recorder.
image.
	• 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.
	• Check if the power is on.
	• Check if the right input mode is selected.
	• Check whether all the cables to the unit are connected to the correct output jack of
		your device like BD / DVD recorder.
	• View other TV channels.The problem might be limited to the broadcasting station or
		weak signal strength.
	• Unplug the AC power cord and wait for about 1 minute, then plug the AC power cord
No picture or sound		and turn on the unit again.
	• Check whether the connection of the antenna, cable receiver or satellite box is
		connected correctly.
	• 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
		volume level 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
		desired volume.
No color	•	View other TV channels.The problem might be limited to the broadcasting station.
	• Adjust [Color] in the main menu.
Adjusted [Picture] or [Sound]	• You must set [Home] in [Location]. ➠ p.30
settings are not effective every		Otherwise, the settings you adjusted will not be memorized after the unit goes to the
time the unit is turned on.		standby mode.
	• Electrical interference from nearby appliances may affect picture quality.
	• Adjust [Contrast] and [Brightness] in the main menu.
Sound OK, picture poor	•	View other TV channels.The problem might be limited to the broadcasting station or
		weak signal strength.
	• For the best picture quality, watch "High Definition" wide screen programs.
		If the HD content is not available, watch "Standard Definition" programs instead.
	• View other TV channels.The problem might be limited to the broadcasting station or
Picture OK, sound poor		weak signal strength.
	• Check if the audio cable is connected in correctly.
You see a distorted picture or	•	You may be getting interference from electrical appliances, automobiles, motorcycles or
		fluorescent lights.
hear an unusual sound.
	• 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.

32

EN