Acoustic Research AR4200 manual Troubleshooting

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Troubleshooting

Before calling for repair service, check the following items for possible remedies to an encountered symptom.

	Symptoms	Check item
	“Ghost” or double images	This may be caused by obstruction to the antenna due to high
	“Ghost” or double images	rise buildings or hills. Using a highly directional antenna may

		improve the picture.
	No power	Check that the AC power cord is plugged into the mains
		socket.
		Unplug the power cord, wait for 60 seconds. Then re-insert plug
		into the mains socket and turn on the unit again.
	No picture	Check antenna connections at the rear of the unit to see if it
		is properly connected to the unit.
		Possible broadcast station trouble. Try another channel.
		Adjust the contrast and brightness settings.
		Check the Closed Captions control. Some TEXT modes could
		block the screen.
		Select a correct input.
		Is a non-compatible signal being used?

	Good picture but no sound	Increase the VOLUME.
		Check that the unit is not muted.
		Check Whether the sound is output to headphone

	Good sound but poor color	• Adjust the contrast, color and
	Good sound but poor color	brightness settings.
		brightness settings.
	Poor picture	Sometimes, poor picture quality occurs when having
	Poor picture	activated an S-VHS camera or camcorder connected and
		activated an S-VHS camera or camcorder connected and
		having connected another peripheral at the same time. In this
		case, switch off one of the other peripherals.
		Check whether the room is too bright
	Horizontal dotted line	This may be caused by electrical interference (e.g. hairdryer,
		nearby neon lights, etc.)
		Turn off the equipment.

Television not responding to remote control

Check whether the batteries are working. Replace if necessary.

Clean the remote control sensor lens on the unit.

Do not use the remote control under strong or fluorescent lighting.

The batteries should be inserted with polarity (+, -) aligned.

	Snowy picture and noise	Check the antenna connection.

	No stable or not	Check if you have selected the correct VGA mode in your
	synchronized VGA picture	PC.

	No output from one	Adjust Balance in the audio menu.
	of the speakers	Adjust Balance in the audio menu.
	of the speakers

Note:

If your problem is not solved, restart your TV by turning it off and then on using the POWER SWITCH.

Never attempt to repair a defective TV yourself.

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Contents Operating Instructions Table of Contents PIP FCC Notice PDP TV a Class B digital device Important InformationDo not use this apparatus near water---for example, near a Important Safety PrecautionsImportant Safety Precautions Important Safety Precautions Batteries for the Remote Control Using the Remote ControlPrecaution on battery use PreparationsSpeaker connection Optional Power connectionCable TV Catv Connection Antenna ConnectionVolume Press this button to access the Menu mainPower Switch Press to remove power from the unit Identification of ControlsMain unit rear view To access the Menu main Remote ControlTo access source select menu 16 10. Mute Sound mute ~9 digit buttonsSwap To exchange PIP and Main Picture source SpeakerConnections How to connectConnect a VCR Yellow VideoTo playback Camcorder Connect a CamcorderConnect a DVD player To play DVDTurn on your DVD player, insert a DVD disc and press To Watch DTV Connect a DTV receiverTo Watch the PC screen Connect a PCTo record program Connect a VCR for recording or external amplifierTo enjoy high-quality sound through an external amplifier Rear of the VCRTurning the Unit On and Off Turning the Unit On and OffViewing the Menus and Displays Press CH twice to select autoset item Memorizing TV ChannelsSetting Auto Fine Tune AFT Using the Mute Adjusting the VolumeBasic Operations Changing ChannelsSelect input source signal Using the Source ButtonUsing source select menu Editing Channel Label Setting Channel OptionsUsing the Preset Picture Mode Setting PictureMenu to return Right/left to adjust Customizing the PictureSetting the Menu Background Setting SystemSetting Sleep Timer Press VOL+/- to select opaque or translucentChanging the Scaling mode of Image Changing Screen OptionsFreezing the Picture Changing the Position of the Image Using Digital Pan and ZoomUsing the Preset Audio Mode Setting SoundAdjusting the Headphone Volume Using the S.M buttonUsing the Auto Volume Using the MTS ButtonChoosing a Multi-Channel Sound MTS Soundtrack Using the Mode button Using the Layout MenuChanging Screen Layout Selecting Screen LayoutPIP Frame Split ScreenGrid Swap the Contents of the PIP Image and Main Image PIP OperationsViewing the Picture-in-Picture Adjusting the Size of PIP Frame Using the POS buttonUsing the Size button Changing the Position of the PIP FrameAdjusting Picture Adjustment in PC VGA ModeAdjusting the Phase and Frequency Adjusting the Picture AutomaticallyChanging the Position of Image Displaying the InformationPress VOL+/- to select fill all or Normal Adjusting Image width and height Adjustment in YPbPr ModeSetting Closed Caption Setting the Background of Closed CaptionViewing Closed Captions Movie Rating Mpaa Adjusting V-CHIP SettingsContent based Rating TV Parental GuidelinesAge Accessing the V-CHIP Menu Changing the PasswordFrom the password menu page, press CHto select change item Adjusting the TV Rating Adjusting the Movie RatingTroubleshooting Specifications SpecificationsSpecification Dimensional Drawings