Sharp LC-20B4U operation manual Troubleshooting, Antenna

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TROUBLESHOOTING (Continued)

Antenna

Problem		Check item
	•	The reception may be weak.
	•	The quality of the broadcast may also be bad.
The picture is	•	Make sure the antenna is facing the right direction.
not sharp.	•	Make sure the outside antenna is connected.
The picture
moves.
	•	Make sure the antenna is facing the right direction.
The picture is	•	There may be reflected electric waves from mountains or
The picture is		buildings.
doubled or		buildings.
doubled or
tripled.
	•	There may be interference from automobiles, trains, high
The picture is		voltage lines, neon lights, etc.
The picture is	•	There may be interference between the antenna cable and AC
spotted.		cord. Try positioning them further apart.
	•	Is the unit receiving interference from other devices?
There are		Transmission antennas of radio broadcasting stations, transmis-
stripes on the		sion antennas of amateur radios and cellular phones may also
screen or		cause interference.
colors fade.	•	Use the unit as far apart as possible from devices that may
		cause possible interference.

■Cautions regarding use in high and low temperature environments

•When the unit is used in a low temperature space (e.g. room, office), the picture may leave trails or appear slightly delayed. This is not a malfunction, and the unit will recover when the temperature returns normal.

•Do not leave the unit in a hot or cold location. Also, do not leave the unit in a location exposed to direct sunlight or near a heater, as this may cause the cabinet to deform and the LCD panel to malfunction.

Storage temperature: –4°F to +140°F (–20°C to +60°C)

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LC-20B4U(E)-e

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03.2.26, 3:34 PM

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Contents To aid reporting in case of loss or theft, please Rear of the TVImportant Information Dear Sharp Customer Important Safety Precautions Service Equipment Contents Supplied Accessories AAA size UM/SUM-4 Dry Battery ⋅2Antenna Cable AC Cord AC AdapterUsing the Remote Control Batteries for the Remote ControlPreparation Preparation Antenna ConnectionPower Connection Main PowerMenu TV/VIDEO Main Power Remote control sensorDisplay and Control Overview VOL -/+Display and Control Overview Listening with Headphones Removing the Back CoverRemote Control EZ Setup with Auto Clock Setting EZ Setup during the First Power OnEnter MenuEZ Setup with Auto Clock Setting To cancel EZ Setup Press cSetting the Clock Auto Clock SettingTime reset for power outage, AC adapter disconnected Press a/bto move the cursor toSetting the Clock Press c/dto select Auto orPress a/bto move the cursor to START, and press Enter Manual Clock Setting Daylight Saving-Time DST AdjustmentSpring Autumn TV signals in your region Basic OperationTurning on Power Basic OperationStandby To turn off the LCD TVSwitching TV/VIDEO AV1/AV2/COMPONENT/TV Modes Turn on the power of the conOMP on E N T TV/VIDEOSound Volume To mute the soundTo select MTS Multichannel TV Sound VOL +Changing channels with CH / on the remote control Changing ChannelsPress the button Press the 5 button To select a 3-digit channel number e.g., ChannelSelecting Menu Items Selecting Menu ItemsAdjustments Adjusting Sleep Timer SettingsDirectly setting the Sleep Timer Setting the Sleep Timer on the Menu screenAdjustments Adjusting Brightness SettingsBright Normal DarkAdjusting Picture Flip Settings Directly setting the Picture FlipSetting the Picture Flip on the Menu screen You can set the orientation of the pictureAdjusting Preset Settings ABCAdjusting Language Settings Adjusting Video Adjust Settings Press a/bto move the cursor to Video ADJUST, and pressPress a/bto move the cursor to the desired item, and press Selected item Press c Press d Decrease contrast Increase contrastToward purple Toward green Lower color intensity Higher color intensityEZ Setup Setting the AIR/CABLEPress a/bto move the cursor to CH-SETTING, and press Enter SET UP Saving broadcast TV channels in the memoryChannel Select Adjusting Blue Screen Settings Blue ScreenPress a/ bto move the cursor Adjusting Closed Caption Settings Setting Closed CaptionSetting the Closed Caption on Menu screen Press Enter to change the Closed Caption settingAdjusting V-CHIP Settings ChipMpaa Rating TV Parental Guidelines TV Parental GuidelinesSetting V-CHIP Mpaa Rating Press a/bto move the cursor to V-CHIP BLOCK, and pressSetting TV Guidelines TV GuidelinesSetting Block Content Block CONTENT, and pressRepeat steps 1 to 3 of 1 Mpaa RATING. See TV GUIDELINES, and pressSetting Status Activating V-CHIP BlockChanging V-CHIP Block Settings Changing or Clearing the Secret NumberConnecting External Devices Example of external devices that can be connectedExample CamcorderConnecting External Devices To AV-IN2 terminal Video Audio L Audio RVCR Audio L Audio R To Component input Audio terminalOutputting video and audio video output Bundling Cables with ClampsConnect to a VCR, audio amplifier, etc Troubleshooting Problem Check itemPower outlet Make sure the AC adapter is properly insertedTroubleshooting AntennaSpecifications Items Model LC-20B4UDimensional Drawings Unit inch mmSharp Electronics Corporation Sharp CorporationLimited Warranty