JVC AV-14F43, AV-20N43, AV-21D43 specifications Troubleshooting

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Troubleshooting

If there is no picture or the TV does not operate normally, make sure the problem isn’t due to the reasons indicated below.

If the problem persists even after taking the measures indicated, please contact a service technician.

Cannot turn the TV on

Press the Main power button on the TV.

Connect the power cord to the AC outlet.

The screen turns blue

Is the BLUE BACK function on? (see page 13.)

Remote control inoperable

Replace the batteries. (see page 3.)

Buttons on front of the TV do not work

Switch the CHILD LOCK function off. (see page 13.)

TV does not respond immediately

Press the main power button on the TV to turn off the main power. Press the main power button again to turn on the TV. If the TV returns to a normal state, operation is normal.

The TV turns off suddenly

Is the OFF TIMER function set to operate? (see page 9.)

Is the AUTO SHUTOFF function on? (see page 13.)

Have you not performed an operation for about two hours after the TV was switched on by the ON TIMER function? (see page 12.) If you don’t perform an operation within about two hours, the TV is automatically switched off for safety.

Poor picture

Press the COLOUR SYSTEM button to select another colour system. (see page 8.)

Adjust the picture settings. (see page 16.)

Set the Picture mode to STANDARD. (see page 8.)

If noise (snow) totally blocks out the picture, check the following.

-Have the TV and aerial been connected properly?

-Has the aerial cable been damaged?

-Is the aerial pointing in the right direction?

-Is the aerial itself faulty?

If the TV or aerial suffer interference from other equipment, stripes or noise may appear in the picture. Move any equipment which can cause interference away from the TV.

If the TV or aerial suffer interference from signals reflecting from mountains or buildings, double-pictures (ghosting) will occur. Change the aerial’s direction or replace it with an aerial with better directionality.

When a white and bright still image (such as a white dress) is displayed on the screen, the white part may look as if it is coloured. When the image disappears from the screen, the unnatural colours will also disappear.

The TV turns on suddenly

Is the ON TIMER function set to operate? (see page 12.)

The TV channel changes suddenly

Is the ON TIMER function set to operate? (see page 12.)

Poor sound

Press the SOUND SYSTEM button to select another sound system. (see page 8.)

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Contents Instructions Safety precautions Preparation Confirm which remote control you haveInserting the batteries Connecting the aerial and VCR Connecting the aerial and external devicesConnecting the aerial and VCR Connecting the aerial To install rod aerialHeadphones Connecting other external devicesSetup Tour Connecting the power cordIf the sound is not clear Press the TV/VIDEO button to select the Video modeBasic operation If the picture is not clearColour System button Remote control buttons and functionsPicture Mode button ECO Sensor buttonChannel Scan button OFF Timer buttonDisplay button Return + buttonPicture Booster is functioning at minimum II buttonPicture Booster button Picture Booster is functioning at maximumBasic operation Using the TV’s menusOne of the 4 menus is displayed Input On TimerAI ECO Display Auto ShutoffChild Lock Blue BackAuto CH Preset Setup TourLanguage Press Menu Mto select the channel number Manual CH PresetPress Menu Tto display the Menu 3 menu, then select Sub-menu is displayedPress Menu Tto select Skip Picture AdjustmentsPress Menu Tto select an item and press Menu Mto adjust it Skip6 7 Using the buttons on the TVOperating menus Basic operationFor details, see the description for each function Troubleshooting Broadcasting systems Specifications