LG CF-21D30X - Television

CF-21D30X - Television LG - Free user manual and instructions

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Product Type CRT Television
Brand LG
Model CF-21D30X
Screen Size 21 inches (53 cm)
Display Technology CRT (Cathode Ray Tube)
Aspect Ratio 4:3
Dimensions (with stand) Approx. 490 x 410 x 470 mm (WxHxD)
Weight Approx. 18 kg
Power Consumption Approx. 70 W
Power Supply AC 220-240V, 50/60 Hz
Input Connections RF Antenna, AV (Composite), S-Video (optional)
Audio Output Built-in speaker, headphone jack
Remote Control Infrared, batteries required
Teletext Yes (FLOF/TOP)
Sleep Timer Yes (adjustable)
Picture Modes Standard, Dynamic, Mild, Game
Country of Origin South Korea
Safety Certification CE, RoHS
Cleaning Instructions Unplug before cleaning; use soft dry cloth; avoid liquids
Spare Parts Availability Generic parts (remote, tubes) from third parties; contact LG support
Repairability Index Moderate (CRT TV, older technology)

Frequently Asked Questions - CF-21D30X LG

How do I connect an external device like a DVD player?
Use the AV input on the back of the TV. Connect the yellow (video), red (right audio), and white (left audio) cables from the device to the corresponding AV ports. Then press the Input or Source button on the remote to select AV.
My TV has no picture but sound works. What should I do?
This likely indicates a problem with the CRT or flyback transformer. First, check if the screen is completely dark or shows a faint raster. If the screen is dark, try increasing the Brightness and Contrast settings. If that fails, the TV may need professional repair.
How do I clean the screen safely?
Turn off and unplug the TV. Wait a few minutes for the screen to cool. Use a soft, lint-free cloth slightly dampened with water or a dedicated screen cleaner. Wipe gently in circular motions. Never spray liquid directly on the screen.
Why is the picture distorted or wavy?
Distorted picture can be caused by nearby magnetic fields (speakers, transformers). Move any such devices away from the TV. Alternatively, use the Degauss function if available (usually found in the service menu via remote code). If problem persists, the degaussing circuit may be faulty.
Can I use this TV with a digital tuner?
This model has an analog tuner only. To receive digital broadcasts, you need an external digital set-top box connected via the AV input. Set the TV to AV channel.
How do I reset the TV to factory settings?
Press the Menu button on the remote, navigate to Setup or Installation, and select Factory Reset or Initial Setting. Confirm with OK. This will erase all user adjustments.
The remote control doesn't work. What can I do?
First, check the batteries and replace if needed. Ensure there are no obstacles between the remote and the TV's IR sensor. Try pressing the power button directly on the TV. If the TV responds, the remote may be faulty. Clean the remote's IR lens with a soft cloth.
What is the power consumption in standby mode?
Standby power consumption is typically about 1-3 watts for CRT TVs. To save energy, unplug the TV when not in use for extended periods.
How can I improve the sound quality?
Access the Audio menu and adjust bass, treble, and balance. If you want better sound, connect external speakers to the headphone jack or use an audio output (if available). Note that this TV has only one built-in speaker.
The TV turns off automatically. Why?
This could be due to the Sleep Timer being activated. Press the Sleep button on the remote to check or cancel the timer. Also, check if the Auto Off feature (if available) is enabled. If the problem persists, there may be an internal fault.

User questions about CF-21D30X LG

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Can a broken or damaged power cable cause my LG CF-21D30X TV to turn off?
Frequently Asked Questions - 8 h
Response Notice-Facile

Yes, a damaged power cable can definitely cause unpredictable shutdowns. Here’s how to diagnose and resolve this issue:

Power Cable Checking Steps

  • Visually inspect the cable - Check it along its entire length for cracks, tears, worn insulation, or blackened areas.
  • Check the connection to the wall outlet - Ensure that the plug is fully inserted and securely locked. Change outlets to test if the problem is with the outlet itself.
  • Check the connector at the back of the TV - Make sure the cable is properly inserted into the TV's power socket.
  • Test with another cable - If possible, borrow a compatible power cable to confirm that the issue is with the cable.

Important Difference

A damaged cable typically causes random or intermittent outages. If your TV turns off regularly every 30 minutes, this indicates a programmed Sleep Timer, not a cable issue.

Recommended Action

If the cable is visibly damaged or if the above steps do not resolve the issue, replace the power cable with a compatible LG CF-21D30X model. This will definitively eliminate this potential cause of shutdown.

Respond (be the first)
The remote control for my LG CF-21D30X TV doesn't have a SLEEP button - where can I find this function?
Frequently Asked Questions - 14 h
Response Notice-Facile

The LG CF-21D30X model does not have a dedicated SLEEP button on its remote control. This function is accessible through the device's menu.

Accessing the sleep function:

  • Press the MENU button on the remote control
  • Navigate to AUTO SLEEP or OFF TIME depending on your need:
    • AUTO SLEEP: automatically turns off the TV after a period of inactivity (approximately 10 minutes)
    • OFF TIME: turns off the TV at a specific programmed time
  • Use the ▲/▼ arrows to navigate and ◄/► to change the settings
  • Press OK to confirm

To turn off the device immediately, use the POWER (or OFF) button on the remote control.

Respond (be the first)
Why does my LG CF-21D30X TV turn off automatically every 30 minutes?
Frequently Asked Questions - 1 d
Response Notice-Facile

Your LG CF-21D30X TV has several automatic shut-off functions. If it turns off regularly every 30 minutes, one of these functions is likely activated:

Sleep Timer

This is the most common cause. Press the SLEEP button on the remote several times to check the setting. This device offers durations of 30, 20, 10, 60, 90, or 120 minutes. If the timer is set to 30 minutes, the TV will automatically turn off after this duration. To disable: continue pressing SLEEP until you see SLEEP OFF displayed.

Auto Sleep

Access the MENU of your TV and look for the Auto Sleep setting. If this function is activated (ON), the TV turns off about 10 minutes after the signal transmission stops. Disable it by setting it to OFF.

Off Time

Check the MENU to see if a scheduled shut-off time is set. This function allows you to schedule a shut-off at a specific time. Make sure this function is disabled or change the scheduled time.

Verification Procedure:

  • Press MENU
  • Look for timer or automatic shut-off settings
  • Check that the Sleep Timer is not set to 30 minutes
  • Disable Auto Sleep and Off Time if active

If the device continues to turn off after checking these settings, it may indicate an electrical malfunction or a faulty button.

Respond (be the first)
My LG CF-21D30X TV turns on but the screen remains black, how can I resolve this issue?
Frequently Asked Questions - 06/30/2026
Response Notice-Facile

This black screen issue despite power being on is generally seen on the LG CF-21D30X and can have several causes. Here are the diagnostic steps to follow:

Initial checks:

  • Make sure the power cord is properly plugged in and the main switch is in the ON position
  • Check the connections of the antenna or video input cables - they should be tight
  • Test another channel (change the channel) to verify that it is not a signal issue

Adjusting brightness:

On the CF-21D30X, the problem may be due to insufficient brightness. Proceed as follows:

  • Access the Main Menu
  • Navigate to Picture or Brightness
  • Gradually increase the brightness and contrast
  • Check if a very faint image appears gradually

If the problem persists:

If after these manipulations the screen remains completely black, this may indicate a fault in the cathode ray tube (CRT) or the flyback transformer. Professional repair will then be necessary. Contact an authorized LG repair service.

Note: Note if you hear sound - this helps with diagnosis: if sound works but not the image, it is generally just a display issue.

Respond (be the first)

Download the instructions for your Television in PDF format for free! Find your manual CF-21D30X - LG and take your electronic device back in hand. On this page are published all the documents necessary for the use of your device. CF-21D30X by LG.

USER MANUAL CF-21D30X LG

This set operates on an AC mains supply, the voltage is as indicated on the label on the back cover. Never apply DC power to the set. In the event of thunderstorms or powercuts, please pull out the aerial and mains plugs.

Warning

To prevent fire or shock hazard, do not expose the set to rain or moisture.

Service

Never remove the back cover of the set as this can expose you to very high voltage and other hazards. If the set does not operate properly, unplug it and call your dealer.

Aerial

Connect the aerial cable to the socket marked 175 on the back cover. For the best reception an outdoor aerial should be used.

Location

Position your set so that no bright light or sunlight falls directly onto the screen. Care should be taken not to expose the set to any unnecessary vibration, moisture, dust or heat. Also ensure that the set is placed in a position to allow a free flow of air. Do not cover the ventilation openings on the back cover.

Battery installation

The remote control handset is powered by two AA type batteries. Gently pull down the cover of the remote control handset until the battery compartment is exposed. Install two batteries as indicated by the polarity symbols(s] and s^) marked inside the compartment.

LG CF-21D30X - Battery installation - 1
Note : To avoid damage from possible battery leakage, remove the batteries if you do not plan to use the remote control handset for an extended period of time.

Location and function of controls

Remote control handset
1 2 3 4 5 6 7 8 9 5 10 11 12 13 14 15 16 17 USB SLEEP DUAL SYSTEM

(With TELETEXT)

All the functions can be controlled with the remote control handset. Some functions can also be adjusted with the buttons on the front panel of the set.

Before you use the remote control handset, please install the batteries.

1. POWER

switches the set on from standby or off to standby.

2. MUTE

switches the sound on or off.

3. NUMBER BUTTONS

switch the set on from standby or directly select a number.

4. QUICK VIEW

returns to the previously viewed programme.

5. TELETEXT BUTTONS (option)

These buttons are used for teletext. For further details, see the 'Teletext' section.

6. i^a/i (Programme Up/Down)

switches the set on from standby. selects a programme or a menu item.

φr/φ'' (Volume Down/Up)

adjusts the volume. adjusts menu settings.

OK

accepts your selection or displays the current mode.

7. SSM (Sound Status Memory)

recalls your preferred sound setting.

8. DUAL

In AV mode, selects the sound output.

9. EYE (option)

switches on or off algorithm eye picture mode.

10. VCR BUTTONS (option)

control the video cassette recorder of our brand.

Location and function of controls

Remote control handset
1 2 3 16 13 6 4 11 14 15 8 9 MEN PUM VIEW SLEEP TWO SWM 7 17 12

(Without TELETEXT)

  1. PSM (Picture Status Memory)

recalls your preferred picture setting.

  1. PSEUDO

To get a pseudo stereo sound effect.

  1. TV/AV

selects TV or AV mode.

  1. MENU

selects a menu.

  1. SLEEP

sets the sleep timer.

  1. UNIT

selects single or double digit.

  1. SYSTEM

displays the system selection mode.

  1. MAIN POWER (①)

switches the set on or off.

  1. STANDBY INDICATOR

illuminates red when the set is in standby mode.

flashes when a button on the remote control handset is pressed.

20 REMOTE CONTROL SENSOR

  1. ALGORITHM EYE (option)

Window for analyze picture according to the condition of surroundings.

  1. AUDIO/VIDEO IN SOCKETS (option)

Connect the audio/video out sockets of external equipment to these sockets.

Front panel
(b) 18 19 20 14 6 21 22

Shown is a simplified representation of front panel.
POWER ⬆ O MENU OK +,VOL+ - PR+ 21 22 18 1920 14 6 21 POWER ⬆ O MENU OK -VOL+ -PR+

Basic operation

On and off

  1. Press the main power button to switch the set on.
  2. If the set is in standby mode, press the POWER, ;a/; or NUMBER buttons on the remote control handset to switch it on fully.
  3. Press the POWER button on the remote control handset. The set reverts to standby mode.
  4. Press the main power button again to switch the set off.

POWER MUTE 1 2 3 4 5 6 PSEUDO 7 8 9 TWAV Q VIEW 0 MENU VOL OK TGA PR PR SSM

Note : If, while the set is switched on, the mains plug is disconnected the set will switch to standby on or power on when the mains plug is replaced in the mains power socket.

Programme selection

You can select a programme number with the ;a/; or NUMBER buttons.

Before entering double digit programme numbers, press the -/-- button until the display -- appears on the screen.

Volume adjustment

Press the ♦,/♦" button to adjust the volume.

Mute function

Press the MUTE button. The sound is switched off and the display appears. You can cancel it by pressing the MUTE, ♦, / ♦", SSM or PSEUDO button.

Quick view

Press the Q.VIEW button to view the last programme you were watching.

On screen language selection (option)

This is an optional function. In the models which have on screen language function, the menu can be displayed on the screen in the desired language. First select your language.

  1. Repeatedly press the MENU button to select MENU 4.
  2. Press the ;#/; button to select LANGUAGE.
  3. Press the OK button to display the sub menu.
  4. Press the i a /i button to select the desired language. All the on screen displays will appear in the selected language.
  5. Press the MENU button repeatedly or TV/AV button once to return to normal TV viewing.

On screen menus

1 2 3 PSM 4 5 6 PSEUDO 7 8 9 TWAV Q VIEW 0 TEXT MENU VOL OK PR SLEEP EYE DUAL SYSTEM SIZE HOLD UPDATE BRAND MIX TIME REVEAL MODE START LENGTH SEMP ONLY CH. PISTILL STOP REC

The dialogue between you and your set takes place on screen with an operator menu. The buttons required for the operating steps are also displayed.

  1. Repeatedly press the MENU button to display each menu.

  2. Press the ;#/; button to select a menu item.

The selected menu item changes from green to purple.

  1. Press the ¢,/¢" button to change the setting of a menu item or OK button to display the sub menu.

Note :

a. The menus automatically disappear in about 12 seconds if you do not press a button.
b. In the AV mode, MENU 1 is not displayed. In some models, the menu item AUTO AV is not displayed on the screen in the PROGAM EDIT mode.
c. In the teletext mode, MENUs are not displayed.
d. In some models, the menu item LANGUAGE is also displayed on the screen in MENU 4 and the menu item NTSC3.58 or SECAM is not displayed on the screen in the SYSTEM mode.

graph TD A["MANUALPROGRAM\nAUTOPROGRAM\nPROGRAMEDIT\n▲▼00KOMENU"] --> B["MENU 1"] B --> C["○0800CONTRAST\n○0600BRIGHTNESS\n○0500COLDUR00000000\n○0500SHARPNESS\n||||||||||||....\n▲▼04▶00KOMENU"] B --> D["MENU 2"] D --> E["○0500VOLUME 0\n○0500TREBLE00000000\n○0500BASSCOO...\n○0 0 BALANCE\n||||||||||||…

Setting up TV stations

MANUALOPROGRAM AUTOOPROGRAM PROGRAMOEDIT

00KOMENU

1 2 3 FSM 4 5 6 PSEUDO 7 8 9 TVAV Q VIEW 0 TEXT MENU PR VOL OK TOV RR SIZE HOLD UGATE EXPAND MIX TIME REVEAL MDE STOCK UP/UP COLD COFF CH INSTALL STOP REC

Up to 100 TV stations can be stored in this set by programme numbers (0 to 99). Once you have preset the stations, you will be able to use the ja/i or NUMBER buttons to scan the stations you programmed. Stations can be tuned using an automatic or a manual mode.

Auto programme tuning

All stations that can be received are stored by this method. It is recommended that you use auto programme during installation of this set.

  1. Press the MENU button to select MENU 1.

  2. Press the ;a/; button to select AUTO PROGRAM

  3. Press the OK button to begin auto programming.

The band automatically changes

VHF-L □A VHF-H □A UHF

When auto programming is completed, the station stored into programme number 1 will appear on the screen.

To stop auto programming, press the MENU button. The active station at that time will be displayed.

Note : Some undesired stations may be stored, such as noisy or unclear signals from distant transmitters. You can easily skip these stations by entering PROGRAM EDIT mode.

Manual programme tuning

Manual programme lets you manually tune and arrange the stations in whatever order you desire.

  1. Press the MENU button to select MENU 1.

  2. Press the : a/; button to select MANUAL PROGRAM

  3. Press the OK button to display the MANUAL PROGRAM mode.

LG CF-21D30X - Manual programme tuning - 1

  1. Press the ;a/; button to select PROGRAM. Select the desired programme number with the ¢,/¢" or NUMBER buttons.
  2. Press the ;a/; button to select BAND. Press the ¢,/¢" button to select VHF-L, VHF-H or UHF as required.
  3. Press the ;a/; button to select SEARCH. Press the ¢,/¢" button to commence searching. To stop the search at any time press the MENU or ;a/; button.
  4. If this station is the one required store it with the OK button, if not press the ¢,/¢" button again.
  5. To store another station repeat steps 4 to 7.
  6. Press the MENU button repeatedly or TV/AV button once to return to normal TV viewing.

Fine tuning

Normally fine tuning is only necessary if reception is poor.

  1. Repeat steps 1 to 3 above
  2. Press the ;a/; button to select FINE.
  3. Press the "c,/c" button to fine tune for the best picture and sound. If the "button is pressed, the display will appear. And if the c, button is pressed, the display will appear.
  4. Press the OK button to store the new setting. The display STORED will appear.
  5. Press the MENU button repeatedly or TV/AV button once to return to normal TV viewing. The finely tuned programme will be indicated by yellow number during programme selection.

Setting up TV stations

MANUALOPROGRAM AUTOOPROGRAM PROGRAMOEDIT

00KOMENU

1 2 3 PSM 4 5 6 PSUDO 7 8 9 TVAV Q VIEW 0 TEXT MENU VOL OK TOA PR SLEY SIZE HOLD UPDATE EXPAND MIX TIME REVEAL MODE STOCK LENGTH STOP STOP ON INSTALL STOP REC

Programme edit

This function enables you to rearrange the programmes stored by auto programming in whatever order you desire. Also you can skip particular programme numbers stored by auto programming.

  1. Press the MENU button to select MENU 1
  2. Press the ;*/; button to select PROGRAM EDIT.
  3. Press the OK button, and the PROGRAM EDIT mode will appear.

Exchanging programmes

  1. Press the ♦/¢" button to change the left hand programme number. The viewing station corresponding to the new programme number is shown on the screen.
  2. Press the NUMBER buttons to enter the desired right hand programme number. Any number under 10 is entered with a numeric '0' in front of it, i.e. '05' for 5.
  3. Press the OK button. The station stored in the right hand programme number will now appear as the left hand programme number.
  4. Repeat steps 1 to 3 to exchange other programmes.

Skipping the stored programme

  1. Press the ♦,/♦" button to select the programme you want to skip. The viewing station corresponding to the selected programme number is shown on the screen.
  2. Press the ;a/; button to select SKIP
  3. Press the ¢,/¢" button to select ON or OFF
    If you select ON, the selected station is skipped.
  4. Press the OK button. The display STORED will appear.
  5. Press the ;a/; button to select first menu item then repeat steps 1 to 4 to skip another programme.

The selection of the skipped programme numbers with the NUMBER buttons is still possible and they will be indicated by cyan numbers during programme selection.

Auto AV setting (option)

If your VCR outputs a switching voltage when it is switched to playback, select AUTO AV ON with the VCR connected to Euro scart socket. The set is automatically switched to AV-1 mode when an AV signal is input. But if you want to keep on watching TV mode, set AUTO AV to OFF.

  1. Press the ♦,/♦" button to select the desired programme.
  2. Press the ;a/; button to select AUTO AV.
  3. Press the ¢,/¢" button to select ON or OFF
  4. Press the OK button. The display STORED will appear.
  5. Repeat steps 1 to 4 to set another programme.

Press the MENU button repeatedly or TV/AV button once to return to normal TV viewing.

Picture adjustment

LG CF-21D30X - MENU 2 - 1

1 2 3 PSM 4 5 6 PSEUDO 7 8 9 TV/AV Q VIEW 0 TEXT MENU VOL OK TOV PR SUE EYE UU V SIZE HOLD UPDATE DWAND MIX TIME REVEAL MODE EYE UNICED RESET DH PRECALL STOP REC

Picture adjustment

You can adjust picture contrast, brightness, colour intensity, sharpness and tint (NTSC input only) to the levels you prefer.

  1. Repeatedly press the MENU button or the EYE button to select MENU 2.
  2. Press the ; a/; button to select the desired picture item.
  3. Press the ♦,/♦" button to make appropriate adjustments.

At this point you can complete your adjustments or store your setting for immediate recall by following steps 4 to 6.

  1. Press the OK button.

LG CF-21D30X - Picture adjustment - 1

  1. Select FAVORITE 1 or FAVORITE 2 with the ;a/; button.
    The FAVORITE 1 or FAVORITE 2 options allow you to programme two entirely different picture settings for various lighting conditions such as day and night.
  2. Press the OK button. The display STORED will appear.

To recall your preferred setting, press the PSM button until the desired picture (STANDARD, FAVORITE 1 or FAVORITE 2) appears. The STANDARD picture is programmed for good picture reproduction at the factory and cannot be changed.

Algorithm eye (option)

This set sets the picture according to the condition of surroundings after analyzing such conditions of a room as a brightness and a kind of a light. So you can always enjoy the most proper picture to your eyes with a natural colour according to the surroundings.

  1. To make the Algorithm eye perform press the EYE button until EYE ON is displayed as shown below.

LG CF-21D30X - Algorithm eye (option) - 1

You can make the Algorithm eye perform with the MENU button. Press the EYE button until EYE ON is displayed after selecting MENU 2 with the MENU button.

  1. Press the OK button.

Note : To switch off the Algorithm eye, press the EYE button until EYE ON disappears or adjust the picture item to the levels you prefer.

Sound adjustment

LG CF-21D30X - MENU 3 - 1

Sound adjustment

You can adjust the sound treble, bass and balance to the levels you prefer.

  1. Press the MENU button to select MENU 3.
  2. Press the ;a/; button to select the desired sound item.
  3. Press the ♦,/♦" button to make desired adjustment.
  4. Press the OK button to store.

1 2 3 4 5 6 PSEUDO 7 8 9 TV/AV Q VIEW 0 TEXT MENU PR VCL OK PR SSM SUL C- DUAL SYSTEM SIZE HOLD UPDATE EXPAND MIX TIME REVEAL MICE SWEET LENGTH MICE CH PULLI LITOR REC

To recall your preferred setting, press the SSM button until the desired sound (STANDARD, FAVORITE 1 or FAVORITE 2) appears. The STANDARD sound is programmed for good sound reproduction at the factory and cannot be changed.

Sound output selection

In AV mode, you can select output sound for the left and right loudspeakers.

Repeatedly press the DUAL button to select the sound output.

LR : Audio signal from audio L input is sent to left loudspeaker and audio signal from audio R input is sent to right loudspeaker.
LL: Audio signal from audio L input is sent to left and right loudspeakers.
RR: Audio signal from audio R input is sent to left and right loud-speakers.

Pseudo stereo

In the models which have the pseudo stereo function, you can experience sound effect as stereo sound by pressing the PSEUDO button.

  1. Press the PSEUDO button.
    The display ◀ will appear on the screen.
  2. Press the button again to switch pseudo stereo off. The PSEUDO button is a toggle switch.

Other functions

LG CF-21D30X - MENU 4 - 1

1 2 3 PSM 4 6 EAV SUIDO 7 8 9 TVAV Q VIEW B TEXT MENU VOL PR OK PR SLEEP JL EVE DUAL SYSTEM SIZE HOLD UPDATE EXPAND MIX TIME REVEAL MODE START LENGTH SWIP ON/OFF ON PREFULL STOP RED

TV and AV modes

Inputs can be set for TV or AV mode. AV mode is used when a video cassette recorder (VCR), or other equipment is connected to the set.

Note : When a VCR is connected via the aerial socket the set is used in TV mode. See the 'Connection of external equipment' section.

  1. Repeatedly press the MENU button to select MENU 4.

  2. Press the ;a/; button to select INPUT.

  3. Press the ¢,/¢" button to select TV, AV1 or AV2.

  4. Press the OK button.

Alternatively you can select the TV or AV mode by pressing the TV/AV button.

Child lock

The TV can be set so that the remote control handset is needed to control it. This feature can be used to prevent unauthorised viewing.

  1. Repeatedly press the MENU button to select MENU 4.

  2. Press the ;a/; button to select CHILD LOCK.

  3. Press the "button" on the remote control handset to select ON.

  4. Press the OK button to return to normal TV viewing

With the lock on, the display CHILD LOCK ON appears on the screen if any button on the front panel is pressed while viewing the TV.

Auto sleep

If you select AUTO SLEEP ON the set will automatically switch itself to standby mode approximately ten minutes after a TV station stops broadcasting.

  1. Repeatedly press the MENU button to select MENU 4.

  2. Press the ;a/; button to select AUTO SLEEP

  3. Press the ¢,/¢" button to select ON

  4. Press the OK button to return to normal TV viewing.

Colour system setting

This set is adjusted for the main TV system in your area. Under normal circumstances, select AUTO. If necessary (if input signal is weak, colour and sound are poor), change the colour system by using the instructions below.

  1. Repeatedly press the MENU button to select MENU 4.

  2. Press the ;a/; button to select SYSTEM

  3. Press the OK button to display the sub menu

  4. Press the ;a/; button to select the correct colour system.

  5. Press the OK button to store the setting. The display STORED will appear.

You can directly display the system selection mode by pressing the SYSTEM button. And then repeat steps 4 to 5 above.

Note :

a. If you adjusted the system as shown steps above, the colour system appears in cyan when the current mode is displayed by pressing the OK button.

b. When receiving the system NTSC3.58, select NTSC3.58

c. The colour system which the set cannot receive could be selected but not operated.

Sleep timer

You don't have to remember to switch the set off before you go to sleep. The sleep timer automatically switches the set to standby after the preset time elapses.

For selecting your desired number of minutes, press the SLEEP button several times or continuously. --- will appear on the screen, followed by 120, 90, 60, 30, 20 and 10.

The timer begins to count down from the number of minutes selected.

Note :

a. To view the remaining sleep time, press the SLEEP button once.

b. To cancel the sleep time, repeatedly press the SLEEP button until the display SLEEP-- appears.

c. When you switch the set off, the set releases the preset sleep time.

Time setting

LG CF-21D30X - MENU 5 - 1

Clock

The clock uses the 24 hour system, and must be set to the correct time before operating the set. You must set the clock correctly before using on/off time functions.

POWER 1 2 3 PSM 4 5 6 PSEUDO 7 8 9 TV/AV Q VIEW 9 TEXT MENU PR VOL TOA OK PR SLEEP + EYE DUAL SYSTEM SIZE HOLD UPDATE EXPAND MX TIME REVEAL MODE SHORT LENGTH SLEEP ON LFF CH RETAIL STOP REC

  1. Repeatedly press the MENU button to select MENU 5.
  2. Press the i a / j button to select CLOCK.
  3. Adjust hour and minute with the ♦,/♦" button or NUMBER buttons.
  4. Press the OK button to return to normal TV viewing.

Off time

The set automatically switches off at the preset time.

  1. Repeatedly press the MENU button to select MENU 5.
  2. Press the i a /i button to select OFF TIME.
  3. Adjust hour and minute with the ♦,/♦" button or NUMBER buttons.
  4. Press the OK button to return to normal TV viewing.

On time

The set automatically switches on at the preset time and station.

  1. Repeatedly press the MENU button to select MENU 5.
  2. Press the i a /; button to select ON TIME.
  3. Adjust hour and minute with the ♦,/♦" button or NUMBER buttons.
  4. Press the ia/i button to select ON PR. then press the φ, / φ'' button or NUMBER buttons to select the desired programme number.
  5. Press the OK button to return to normal TV viewing.

Note :

a. In the event of power interruption (disconnection or power failure), the clock must be reset.
b. If the same time is set for the on time and the off time, only the off time operates.
c. This set must be put into standby mode with the POWER button on the remote control handset to operate the on time function.
d. If the on time function activates, the TV will automatically switch to the on time programme number, even during viewing.
e. Two hours after the set is turned on by the on time function it will automatically switch back to standby mode unless a button has been pressed.
f. Once the on or off time is set, these functions operate daily at the preset time.

Teletext (option)

1 2 3 PSM 4 5 6 PSEUDO 7 8 9 TWAV Q VIEW 0 TEXT MENU PR VOL OK PR SLEEP EYE DUAL SYSTEM SIZE HOLD UPDATE INDEX TIME REVEAL MODE START LENGTH SLEEP CANOFF CH PSTILL VTOP REC

Teletext is an optional function, therefore only a set with the teletext system can receive the teletext broadcast.

Teletext is a free service broadcast by most TV stations which gives up-to-the-minute information on news, weather, television programmes, share prices and many other topics.

The teletext decoder of this TV can support the Simple, TOP and FASTEXT systems. Simple mode consists of a number of pages which are selected by directly entering the corresponding page number. TOP and FASTEXT are more modern methods allowing quick and easy selection of teletext information.

Switch on/off

Press the TEXT button to switch to teletext. The initial page or last selected page appears on the screen.

Two page numbers, TV station name, date and time are displayed on the screen headline. The first page number indicates your selection, while the second shows the current page displayed.

Press the TEXT or TV/AV button to switch off teletext. The previous mode reappears.

Simple mode

If the TV is in TOP or FASTEXT mode, press the MODE button to switch to LIST mode.

Page selection

  1. Enter the desired page number as a three digit number with the NUMBER buttons. If during selection you press a wrong number, you must complete the three digit number and then re-enter the correct page number.

  2. The i a /i button can be used to select the preceding or following page.

TOP mode

The user guide displays four fields-red, green, yellow and blue at the bottom of the screen. The yellow field denotes the next group and the blue field indicates the next block.

Block/group/page selection

  1. With the BLUE button you can progress from block to block.

  2. Use the YELLOW button to proceed to the next group with automatic overflow to the next block.

  3. With the GREEN button you can proceed to the next existing page with automatic overflow to the next group. Alternatively the ; a button can be used.

  4. The RED button permits to return to previous selection. Alternatively the ; button can be used.

Direct page selection

Corresponding to the Simple mode, you can select a page by entering it as a three digit number using the NUMBER buttons in TOP mode.

FASTEXT mode

The teletext pages are colour coded along the bottom of the screen and are selected by pressing the corresponding coloured button.

Page selection

  1. Press the INDEX button to select the index page.

  2. You can select the pages which are colour coded along the bottom line with the same coloured buttons.

  3. Corresponding to the Simple mode, you can select a page by entering its three digit page number with the NUMBER buttons in FASTEXT mode.

  4. The i a /; button can be used to select the preceding or following page.

Teletext (option)

Special teletext functions

REVEAL

Press this button to display concealed information, such as solutions of riddles or puzzles.

Press this button again to remove the information from the display.

SIZE

Selects double height text.

Press this button to enlarge the top half of the page.

Press this button again to enlarge the bottom half of the page.

Press this button again to return to the normal display.

UPDATE

Displays the TV picture on the screen while waiting for the new teletext page. The display ⏻ will appear at the top left hand corner of the screen. When the updated page is available then display ⏻ will change to the page number.

Press this button to view the updated teletext page.

HOLD

Stops the automatic page change which will occur if a teletext page consists of 2 or more sub pages. The number of sub pages and the sub page displayed is, usually, shown on the screen below the time. When this button is pressed the stop symbol is displayed at the top left-hand corner of the screen and the automatic page change is inhibited.

To continue press this button again.

MIX

Displays the teletext pages superimposed on the TV picture.

To switch the TV picture off press this button again.

TIME

When viewing a TV programme, press this button to display the time at the top right hand corner of the screen. Press this button again to remove the display. In the teletext mode, press this button to select a sub page number. The sub page number is displayed at the bottom of the screen. To hold or change the sub page, press the RED/GREEN, i a /i or NUMBER buttons. Press again to exit this function.

1 2 3 PSM 4 5 6 PSEUDO 7 8 9 TV/AV Q VIEW 0 TEXT MENU PR VOL OR PR MEEP EVE DUAL SYSTEM SIZE HOLD UPDATE DIMAND & MIX TIME REVEAL MODE TIME LENGTH WM CAPPLY CH PANEL STOP MIO

Connection of external equipment

You can connect additional equipment, such as VCRs, camcorders etc. to your set. Here shown may be somewhat different from your set.

Aerial socket

VCR

  1. Connect the RF out socket of the VCR to the aerial socket on the back of the set.
  2. Connect the aerial cable to the RF aerial in socket of the VCR.
  3. Store the VCR channel on a desired programme number using the 'Manual programme tuning' section.
  4. Select the programme number where the VCR channel is stored.
  5. Press the PLAY button on the VCR.

VCR

Audio/Video in/out sockets

  1. Connect the audio/video out sockets of the VCR to audio/video in sockets of the set and in sockets of the VCR to out sockets of the set.
  2. Press the TV/AV button to select AV.
  3. Press the PLAY button on the VCR.
    The VCR playback picture appears on the screen.

VCR VCR

You can also record programmes received by the TV on video tape via audio/video out sockets.

VCR

Euro scart socket

If your set has the Euro scart socket,

  1. Connect the euro scart socket of the VCR to the Euro scart socket of the set.
  2. Press the PLAY button on the VCR.
    If your VCR outputs a switching voltage the set will switch to AV mode automatically.
    Otherwise, press the TV/AV button on the remote control handset to select AV. The VCR playback picture appears on the screen.

Troubleshooting check list

Symptoms
No picture, no sound Sound OK, poor picture Picture OK, poor sound Picture blurred Lines or streaks in picture Poor reception on some channels No colour Poor colour Remote control does not work Check these items and try to adjust these The mains plug-(plugged in and switched on) Is the TV switched o…

Solid gray gradient background with no text, symbols, or discernible objects

Check these items and try to adjust these

The mains plug-(plugged in and switched on)

Is the TV switched on

Try another channel (weak signal)

Check aerial (plugged into TV?)

Check aerial (broken lead?)

Check aerial

Check for local interference

Adjust contrast

Adjust brightness

Adjust colour

Adjust volume

Check the batteries in remote control

Check Audio/Video sockets (VCR only)

Manual assistant
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Product information

Brand : LG

Model : CF-21D30X

Category : Television