JVC AV-20420, AV-20421, AV 20420 manual Troubleshooting, Problems Check

Page 38

Troubleshooting

PROBLEMS

 

CHECK

There is no power

 

• See if the power cord became unplugged.

 

 

 

• Check for a blown fuse or circuit breaker or a power outage.

 

 

 

There is no picture

 

• The antenna could be disconnected.

or sound

 

• The input mode could be set improperly. See page 35.

 

 

• The tuner (Auto Tuner Setup) could be set improperly. See page 17.

 

 

• The TV station may be having difficulties. Check to see if other stations are working.

 

 

 

Remote control is not

 

• Check to see that the batteries are still working and properly installed.

operating properly or

 

• Make sure the remote has a clear sight path to the TV.

at all

 

 

 

 

 

You cannot select a

 

• You may be too far from the TV. You must be within 23 feet (7 meters).

certain channel

 

• Make sure the channels have been programmed. See "Channel Summary", page 18.

 

 

• Check to see if the channel is locked. See "Channel Summary - Lock" page 18.

 

 

 

The power turns off

 

• Make sure the set did not become unplugged.

by itself

 

• Perhaps the On/Off Timer is set. See page 32.

 

 

• Check to see if the Sleep Timer was set. See page 36.

 

 

 

The clock is wrong

 

• The power was interrupted and the clock was not reset. See page 31.

 

 

 

The On Timer is

 

• There is a problem with the TV. Unplug the set and call for service.

blinking

 

 

 

 

 

The color quality

 

• Tint and Color may be improperly adjusted. See page 27.

is poor

 

• The Video Status mode may be turned to the wrong setting. See page 28.

 

 

 

There are lines

 

• There could be interference from another electrical appliance, such as a computer,

across the picture

 

another TV or VCR. Move any such appliances further away from the TV.

 

 

 

The picture is spotted

 

• There could be interference from a high-wattage appliance, like a hairdryer or vacuum,

 

 

operating nearby. Move the antenna away from the appliance or change to a coaxial

 

 

cable connection which is less prone to interference.

 

 

 

There are double

 

• A building or passing airplane can reflect the original signal and produce a second,

pictures (ghosts)

 

slightly delayed one. Adjust your antenna position.

 

 

 

Picture is snowy

 

• Your antenna may be damaged, disconnected or turned. Check the antenna

(image noise)

 

connection. If the antenna is damaged, replace it.

 

 

 

Screen is 80% black

 

• The Closed Caption Text mode is on. Turn it off in the Closed Caption Menu, page 33.

 

 

 

Stereo or bilingual

 

• Make sure the MTS settings are correct. See "MTS" on page 29.

programs can't be

 

 

heard

 

 

 

 

 

There is no sound

 

• The TV Speaker option may be turned off. See page 30.

from the TV's speakers

 

 

 

 

 

Static electricity

 

• It is normal to feel static electricity if you brush or touch the screen.

 

 

 

You hear occasional

 

• It is normal for the TV to make crackling sounds when first turned on or off. Unless

crackling sounds

 

the sound or picture become abnormal, this is fine.

 

 

 

38

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Contents Important Note Model Number Serial NumberImportant Safety Precautions Risk of Electrical Shock Do not OpenImportant Safeguards Please read and retain for your safetyUse ThereforeService Portable Cart Warning Symbol provided by RetacTable of Contents Coaxial Cables Component Cables Composite Cables Audio CablesModels AV-20420 AV-20421 Rear Panel DiagramFront Panel Diagram AV-20420 AV-20421AV-20420 RM-C205RM-C205W Remote Control Getting StartedQuick Setup Connections Connecting Your DevicesDiagram #1 Illustration of AV-20420Connecting to an External Amplifier Connecting to a Camcorder Auto Tuner Setup Tuner Mode Cable AIRUsing the Guide Onscreen MenusInitial Setup Programming OverChannel Summary Channel Guard MessageChip Special Note about RatingsUS V-Chip Ratings Setting US V-Chip Ratings Directions to set US V-Chip RatingsExample Setting Ratings with the V-Chip ButtonProgram is Rated TV-PG Movies Ratings Directions to set Movie Mpaa RatingsCanadian V-Chip Ratings Directions to set Canadian V-Chip RatingsUnrated View Block Unrated ProgramsDirections to Block Unrated Programs Set Lock Code This Program is Locked by Channel GuardAdjust the Picture Settings Picture AdjustPicture Settings Noise MutingSet Video Status Adjust the Sound Settings Sound AdjustSound Settings MTS Multi-Channel Television SoundTV Speaker TV Speaker OFFMode Auto Manual Time Clock/TimersMode Auto Manual Time Zone Eastern On OFF Finish Set ClockOn/Off Timer Language Closed CaptionBackground Background Black ClearExit Button FunctionsMenu DisplayVideo Status Sleep TimerGood Night Push Sleep Timer Button To Extend MutingReturn + PowerVolume + Number Buttons 10Key PadTroubleshooting Problems CheckParts LaborJVC Company of America Accessories Authorized Service CentersDo not service the television yourself Toll Free 1 800Specifications ModelPage JVC Company of America JVC CANADA, INC