20D7N - Television DAEWOO - Free user manual and instructions

Product Type	Television
Brand	Daewoo
Model	20D7N
Screen Size	20 inches
Display Type	CRT (Cathode Ray Tube)
Aspect Ratio	4:3
Picture Tube	Flat screen (standard)
Audio Output	2 x 3W (mono or stereo depending on model)
Tuner	Analog, VHF/UHF
Input Connectors	SCART (Euroconnector), RF Antenna, Composite AV (RCA)
Output Connectors	Headphone jack
Power Supply	220-240 V AC, 50 Hz
Power Consumption	Approx. 60 W (typical)
Dimensions (with stand)	490 x 410 x 460 mm (approx.)
Weight	15 kg (approx.)
Remote Control	Included (batteries not included)
Features	Sleep timer, Auto channel search, Teletext, Child lock
Cleaning Instructions	Unplug before cleaning, use soft dry cloth, avoid liquids
Safety	Do not block ventilation, avoid humid environments, use only manufacturer-approved parts
Spare Parts / Repairability	Serviceable by qualified technician; genuine parts recommended
Year of Manufacture	Late 1990s / Early 2000s (estimated)

Frequently Asked Questions - 20D7N DAEWOO

How do I connect external devices like a DVD player?

Use the SCART or composite AV input (yellow video, red/white audio) on the back of the TV. Press the AV/SOURCE button on the remote to cycle through inputs.

Why is the picture distorted or no color?

Check if the color setting is not turned down in the menu. Also ensure the antenna connection is secure. If using external source, verify cables are properly plugged.

How do I set up channels?

Press MENU on the remote, navigate to Channel Setup or Tuning, select Auto Search or Auto Program. The TV will scan and store available channels.

Can I use the TV in another country with different voltage?

The TV is designed for 220-240V AC only. Using it with different voltage may damage the TV or cause fire. Check local voltage and use a step-up/down transformer if necessary.

What do I do if the remote control doesn't work?

Replace the batteries with new ones (AA). Make sure the infrared sensor on the TV is not blocked. If still not working, try a universal remote or contact support.

How do I set the sleep timer?

Press the SLEEP button on the remote repeatedly to cycle through timer options (e.g., 30, 60, 90 min). The TV will automatically turn off after the set time.

The screen has burn-in or ghosting. Can it be fixed?

CRT TVs can develop image retention from static content. Try reducing contrast/brightness or use a screen saver (if available). Severe burn-in may require repair or replacement.

How to clean the TV safely?

Unplug the TV. Use a soft, dry cloth to wipe the screen and body. Do not spray liquids directly; dampen cloth slightly if needed. Avoid abrasive cleaners.

Why does the TV make a high-pitched noise?

A slight hum or whine from the CRT electronics is normal. If it's loud or accompanied by smoke, unplug immediately and consult a qualified technician.

How do I activate child lock?

Press MENU, go to Setup or Parental Control, enable Child Lock and set a PIN (usually 0000). This disables front panel buttons; use remote to unlock.

USER MANUAL 20D7N DAEWOO

21V1M/14K8MT/20K8MT/21K8MT

14V4M/20V4M/21V4M/14V4T

20V4T/21V4T/14U1T/20U1T/21U1T

14V1T/20V1T/21V1T/14D4T

21D7N/14K8M/20K8M/21K8M

14S2/20S2/21S2/14D4/20D4

21D4/14V5TB/14V5TS/14V5TW

14Q1N/20Q1N/21Q1N

KR14E5 / KR20E5 / KR21E5

KR14E5M / KR20E5M / KR21E5M

KR14U1T / KR20U1T / KR21U1T

KR14U2T / KR20U2T / KR21U2T

KR14U3T / KR20U3T / KR21U3T

KR14V1T / KR20V1T / KR21V1T

KR14V4T / KR20V4T / KR21V4T

KR21FL6M/ KR2131FL/ KR2132FL

KR2134FL/ KR2132NT/ KR2134NT

KR2130N/ KR2131N/ KR2132N

KR2134N/ KR2130NT/ KR2131NT

KR21FL6N/ KR15U7FL/ KR15U7T

KR15U5FL/ KR15U5T/ KR14V5T

KR20V5T/ KR21V5T/ KR14D4TS

KR14D3TS/ KR20D3TS/ KR21D3TS

KR14D4TS/ KR20D4TS/ KR21D4TS

KR14D4Z/ KR20D4Z/ KR21D4Z

KR1420Z/ KR2020Z/ KR2120Z

KR21FL6/ KR15A1FL/ KR15U7FL

KR15U5FL-2T/ KR15U7FL-2T

Contents

Important safeguards 1

Before Operation 2

Connecting external equipment 3

Identification of Controls 5

Daily use 6

Menus 8

Teletext (Option) 14

The othello game 16

Specifications 18

Troubleshooting 19

This information is placed by The law of RF on Protection of the Consumer Rights and the Governmental Resolution of RF No.720.

The working life of this set is 7 years since its production date. After the working life, this set may be not work properly and cause damage to the life of the customer or his property.

Important safeguards

WATER AND MOISTURE

Never install the set in the following places: In a wet basement, bathroom. Do not place any container with liquid on the set.

The apparatus shall not be exposed to dripping or splashing water and that no objects filled with liquids, such as vases, shall be placed on the apparatus.

HEAT

Never place the set near heat sources.

VENTILATION

Do not cover the ventilation openings in the cabinet and never place the set in a confined space such as a bookcase or built-in unless proper ventilation is provided. Leave a minimum 10cm gap all around the unit.

OBJECT ENTRY

Do not insert foreign objects, such as needles and coins, in the ventilation openings.

LIGHTNING STRIKING

You should disconnect the set from the mains and the aerial system during thunderstorms.

CLEANING

Unplug the set from the mains during cleaning.

AFTER MOVING THE SET

If the set is moved in a different direction, the MAIN POWER button must be switched off for at least 15 minutes in order to take out a colour strain on the screen.

Battery options

INSERTING BATTERIES INTO THE REMOTE CONTROL UNIT.(OPTION)

Insert the batteries (two 1.5V, type AAA)

MAINS CONNECTION

Plug the mains cable into the power socket with 110V-250V, 50/60Hz AC.

Simple line drawing of a box connected to an antenna with a power cord (no text or symbols)

AERIAL CONNECTION

When using an outdoor aerial, it is usually connected to the set by means of 75 ohm.

Hand pressing a button on a computer monitor (no text or symbols visible)

SWITCHING ON AND OFF

Switching on

Switch the set on with the MAIN POWER button(ON/OFF), and then PR UP button on the front of the set.

Or button or the PR UP button or one of the NUMBER buttons on the remote control.

Switching off

Press button, on the remote control to return the set to its stand by mode.

If you don't use the set for an extended period of time, turn it off with MAIN POWER button on the set.

Connecting external equipment

TV AND AV

Use the TV/AV( ) button on the remote control or on the front of the set to select one of the three options. Whenever the TV/AV ( ) button is pressed, the on-screen display will be changed as shown: AV(S-VHS is Russia only) → GAME → TV If you push the PR UP/DOWN buttons in AV mode, the on-screen display will be changed TV mode.

RCA JACK AV (BACK)

This is used to connect a VCR, a Camcorder, a S-VHS VCR, a PERI-TV decoder or a video game console.

In most cases, the set changes automatically to AV when the VCR connected is in display mode. If not, press the TV/AV(☐/☐) button on the remote control unit or on the front of the set.

You must turn the external equipment off or press the TV/AV button to return to the TV mode.

Diagram of a TV power supply connected to an antenna via cable (no text or symbols present)

RCA JACK AV (FRONT)

Connect the AV (Audio/Video) socket with an appropriate cable to the corresponding socket of the external equipment. Select AV mode by pressing the TV/AV( ) button.

Press the TV/AV() or PR UP/DOWN buttons to return to the TV mode.

NOTE: If two apparatus are connected, one to the front AV Jack and the other to the rear SCART Jack, you can play only one apparatus. one of the them must be switched off.

Illustration of a flat-screen TV connected to an earphone (no text or symbols present)

HEADPHONE JACK

Insert the headphone plug(3,5mm) into the headphone socket. The sound from the speaker will be cut off.

CAMCORDER

OR

VIDEO GAME

LOCAL CONTROL

Front

ON/OFF

VIDEO AU

[Non-Text]

-

m = 311

MENU

O/E

◀

▶

▼

R ▲

ON/OFF

MAIN

POWER BUTTON

PROGRAMME DOWN/UP BUTTONS

VOLUME DOWN/UP BUTTONS

TV/AV MENU BUTTO

STAND-BY INDICATOR

REMOTE SENSOR

VIDEO INPUT

AUDIO INPUT

HEAD HONE

Identification of Controls

Back

REMOTE CONTROL

TTW mode

① POWER
② NUMBER 0-9
③ NORMAL/OK
④ AV
⑤ PR (CURSOR) UP
⑥ VOLUME UP (CURSOR RIGHT)
⑦ MENU
⑧ PR (CURSOR) DOWN
⑨ VOLUME DOWN (CURSOR LEFT)
⑩ MUTE
⑪ RECALL
⑫ SLEEP
⑬ MOVE
⑭ SKIP
⑮ DELETE
⑯ Not used

T E L E T E X T m o d e ( ( O p t i i o n ) )

① ON/OFF
② NUMBER 0-9
③ INDEX
④ MIX
⑤ PAGE UP
⑥ SUBPAGE
⑦ MENU
⑧ PAGE DOWN
⑨ HOLD
⑩ MUTE
⑪ REVEAL
⑫ SIZE
⑬ CANCEL
⑭ Green Key
⑮ Red Key
⑯ TV/TEXT
⑰ Yellow Key
⑱ Cyan Key

PROGRAMME SELECTION

Direct selection

Use remote control NUMBER 0...9 buttons. For two or three digits programme numbers, press the button for the next digit within 2.5 seconds.

Up/Down moves

Use PR UP/DOWN buttons of the remote control unit or on the front of the set.

SOUND CONTROL

Volume adjustment

Use VOLUME UP/DOWN buttons of the remote control unit or on the front of the set.

Mute

Get sound off by pressing the remote control MUTE (✗) button. Then, logo (✗) is displayed. Sound returns by pressing the same button again.

PICTURE CONTROL

You can choose between three picture settings, using repeatedly remote control NORMAL/OK button :

Normal I (standard hard picture) Normal II (standard soft picture) Favourite (you can adjust picture setting as you want, using Picture menu).

For other adjustments : Brightness, contrast, colour, sharpness, see Picture menu. (page 9)

SLEEP FUNCTION

Pressing repetitively the remote control SLEEP button, you can enter one of the following settings :

OFF > 30 min > 60 min > 90 min > 120 min > OFF

The set will be turned off after the time you set.

The remaining time before TV turn-off is displayed on programme status.

PROGRAMME STATUS DISPLAY

Accessed by the Remote Control RECALL button.

Pressing repetitively the RECALL button, you can change channel digit as follow.

\* NOTE

Language selection

Child lock, Clock setting and wake time setting are available in features menu.

MAIN MENU

All menus are removed within 25 seconds if you don't press any button.

Direct selection

Press remote control MENU button to display main menu.

Then, you have the choice among several sub-menus.

If you want to cancel immediately main menu, press MENU button once more.

To select one of the sub-menus, use remote control CURSOR buttons UP, DOWN, LEFT, RIGHT.

To enter the selected sub-menu, press remote control NORMAL/OK button.

HOW TO USE SUB MENUS

* The following is applied to all of the sub-menus.

Select the function you want to change using Remote control CURSOR UP or DOWN button.

Confirm (if needed) by pressing Remote control NORMAL/OK button.

Adjust the function using Remote control CURSOR LEFT or RIGHT button.

Then Return to main menu pressing MENU button.

PICTURE

FEATURES

INSTALL

PICTURE MENU

Enter PICTURE in the main menu.

You can select each function with the UP/DOWN buttons.

Use the LEFT/RIGHT buttons to adjust each function.

Explanation for each function will be displayed in the lower screen whenever you select the function. (Tint control for AV NTSC only)

FEATURES MENU

LANGUAGE

Language selection.

CHILD LOCK

Child lock prevent the use of the TV set without remote control unit.

Select this value ON or OFF:

• When switched ON: the stand-by indicator is orange lighted, child lock is operating.
• The set can only be switched ON with the remote control unit.

CLOCK

TV clock setting.

• Set TV clock with remote control 0...9 NUMBER buttons, then clock starts.
• Note that if you turn off the set with the MAIN POWER button, the clock setting is lost and must be reset if necessary.

WAKE TIME

Wake up function.

• The TV set turns on at the time and with the programme chosen by the customer. This function is only available when clock is set and when TV set is switched to stand -by mode.
• Switch "wake up" function ON/OFF with remote control CURSOR LEFT or RIGHT button.
• Enter wake up time with remote control 0...9 NUMBER buttons.

WAKE PR

Select TV turn-on programme number.

INSTALL MENU

AUTO SETUP

Automatic search system.

EDIT

Programme list edition.

FREQ.

Channel Frequency.

NAME

Channel name.

PROGRAM

Programme number.

STORE TO

Programme storage number.

EDIT MENU

PR

Programme number.

NAME

Station name.

Skip

√ : programme skipped.

AUTO SETUP

Select "AUTO SETUP" and Press remote control "NORMAL/OK" button more than 3 seconds to start automatic searching.

PROGRAMME LIST EDITION

Select "EDIT" function and confirm with the remote control "NORMAL/OK" button :

Edit menu appears and shows existing recorded programmes.

The recorded programmes can be modified as follows :

Channel skipping

You can select skip "YES" or "NO" using the remote control SKIP button.

A programme with skip " doesn't appear on screen when changing programmes with PR UP/ DOWN buttons.

Channel deleting

Select the programme to delete using remote control CURSOR UP/ DOWN buttons.

Press the remote control DELETE button.

The deleted programme is moved to the programme number 199 with skip " √

The existing 199 programme is moved to programme number 198 and so on.

MANUAL CHANNEL SETTINGS

Choose starting point

Select with "PROGRAM" function the programme from which you want to start manual tuning. Then, the channel number, the frequency, the name and the programme number of this programme are displayed in the install menu.

Channel searching

Select "FREQ." function.

Press the remote the remote control CURSOR RIGHT / LEFT buttons for more than 3 seconds to start (up / down) manual tuning.

After searching, tuning will stop automatically to the next channel. (To stop searching press the remote control MENU button)

Fine Tuning

If you are unable to get a good picture or sound because of a poor broadcasting signal, it is possible to fine tune a signal.

Select channel frequency ("FREQ.") function.

Press and release the remote control CURSOR RIGHT/LEFT buttons to fine tune a signal.

Enter station name

Select "NAME" function.

Use the CURSOR RIGHT/LEFT buttons to select the character (letter) you want to modify.

To modify this letter press the CURSOR UP/DOWN buttons until the desired letter is displayed.

Store programme in memory

Select "STORE TO" function

Adjust the programme number you want to store and confirm by pressing the remote control "NORMAL/OK" button.

Remarks: This function can be also used if you want to copy a programme already memorized to another programme number.

MANUAL CHANNEL SETTINGS

You can call up the MENU without the remote control unit. You can enter the MENU directly by pressing the MENU button. If you press the ( ) button over 1 sec, the MENU will be displayed on the screen. : If you press the ( ) button less than 1 sec, the screen will be converted to AV mode.

Move the cursor to the SUB MENU you want by using the PR UP/DOWN buttons and press the VOL UP button, then the SUB MENU will be displayed on the screen. When the SUB MENU is displayed on the screen you can set it by using the PR UP/DOWN or the VOL UP/DOWN buttons. Press the MENU button to return to the previous Menu.

At the EDIT mode, you can't use the MOVE function and DELETE function

Remarks: This function can't be AUTO SETUP.

Teletext (Option)

SWITCHING TELETEXT ON/OFF

Press the TELETEXT button ( ) The index page viewed last will appear.

Press the TELETEXT button to return to the TV mode.

Note that theTELETEXT at this TV set is operated to Level 1.5.

SELECTING PAGES

The NUMBER button 0..9 are used to enter a page

number.

The selected page number appears at the top of the screen and the page appears after a short time.

The UP/DOWN buttons increase or decrease the current page number step by step.

PAGE HOLD

Several sub pages can be combined under a page number and are scrolled at an interval determined by the television station.

The presence of sub pages is indicated by, for example, 3/6 beneath the time, which means that you are looking at the 3rd page of a total of 6 pages.

If you want to look at a subpage for a longer period of time, press the HOLD( ) button. The contents of the subpage shown are kept on the screen and no longer updated or switched to other subpages.

Pressing the HOLD button again, the current subpage appear.

COLOUR BUTTONS IN TOP/FLOF TELETEXT

A red, green, yellow and cyan field is shown at the bottom of the screen.

If TOP or FLOF teletext (FASTEXT) is transmitted by the station, pressing the corresponding colour button on the remote controller, you can select the desired page easily.

INDEX PAGE

You can switch directly to the programme preview (with TOP text) or the overview page of the station you are currently viewing by pressing the

INDEX( )Button

CALLING UP SUBPAGE DIRECTLY

Pressing the SUBPAGE ( ☐ ) button, "Page No. / Subpage No." appears at the bottom of the screen.

Press RED / GREEN button or 0.....9 number button directly to enter the Subpage you want, then the subpage is sought and displayed.

To exit, press SUBPAGE ( ) button again.

WATCHING TELEVISION DURING TELETEXT MODE

Some pages are continually updated, for example, stock market reports, sports announcements, and the latest news.

If you want to watch television and stay informed at the same time, press CANCEL ( ) button.

The regular programme is still visible and the teletext programme number appears at the top of the screen.

Pressing the CANCEL button again, the teletext page appears with the updated information.

IDOUBLING CHARACTER SIZE

Repeatedly pressing the SIZE( ) button doubles the character size in the following order: Upper half of the page Lower half of the page Return to normal size.

MIX

Pressing the MIX button( ) in teletext mode, you can see an aerial channel also in the back ground. If you control bright and contrast in the Mix mode also TV mode is controlled at the same time.

REVEAL ANSWER

This function can be used on certain pages to reveal the solution of riddles.

Press the REVEAL( EButton to reveal a hidden answer and press again to hide it.

VOLUME, BRIGHTNESS CONTROL

Repeatedly pressing the MENU button in teletext mode, VOLUME or BRIGHTNESS appears at the bottom of the screen.

You can control it with the LEFT/RIGHT button.

The othello game

1. Introduction

Othello is a two player strategy game. Othello is player on an 8 x 8 square board, one taking yellow while the other taking green. The object of Othello is to flip as many of your opponents discs to your color as possible without opponent flipping your discs.

2. The Rules

The initial configuration, before the game starts, is:

Grid pattern with four white and two dark circles in the center (no text or symbols)

Green starts playing first. Each player puts one disc on the board at each turn, unless either no one can move, or one player cannot move, and then the other player can play again. The game ends when no player can move, and the one who has the most discs of his own colors has won. Now how to put a disc on the board? The idea is one can put a disc of his own color at a square, if and only if there is at least one disc of the opposite color immediately surrounding it, and at the extension of this line there is a disc of his own color. For example, at the beginning of the game, green can play at the following squares marked with an X:

3. How to Play

1. Press the TV/AV(€) button to open the Game mode RF → AV → S-VHS(Russia option) → GAME

2. Select Opponent This option allow you to choice opponent. You can select Man vs Man or Man vs TV. If you choose Man vs Man, game start directly.

3. Move to your choice :

4. Select your opponent :OK button

5. Select TV level (When opponent is TV) You can change the difficulty level of the TV player. You can select Easy, Medium or Hard.

6. Move to your choice :

7. Select level of the TV :OK button

8. Start game When game is started, the player1(Man) plays green and the player2(Man or TV) yellow. The player1 plays first.

9. Move to your disc :
   Use the Program Up/Down & Volume Up/Down button.

10. Place your disc : Press the OK button.
11. Restart game : Press the MENU button.
12. Quit game : Press the TV/AV button.

※Owing to our policy of continuous product improvement, specifications may change.

Troubleshooting

Sometimes some performance problems can be easily solved by checking seemingly apparent but often overlooked possibilities. Before asking for service, to check these items could save your time and money.

SYMPTOM CHECK
No picture or sound. • Check the TV set is plugged in.• Check the volume, Brightness and Contrast controls are set to the minimum positions.
Picture is OK, but No Sound • Check the Volume control is set to the minimum position.
Sound is OK, but No Picture • Check the Brightness and Contrast controls are set to the minimum position.
No Colour • Check the Colour control is set to the minimum position.
Excessive noise in picture • Check the Antenna Cable is broken or disconnected or damaged.
Diagonal stripes appear on • It may be affected by interfering signal.picture (ex. from nearby amateur radio transmitter or another TV set.)• The interference can be reduced to some extent by adjusting the direction or height of the antenna.(If the twin lead antenna cable is used, replace it with a coaxial cable.)
Picture has "Snow"	• Check the Antenna cable is broken or disconnected or damaged.• Small dot on the screen caused by a weak aerial signal.
Ghost images appear. • Check the Antenna direction has changed after storm or strong wind etc..• Ghost images are caused by a signal reflected from a hill or large building etc..• The direction or height of the antenna should be chosen well in order to minimize the ghost images.

DAEWOO ELECTRONICS