When maintenance personnel are repairing DVD TV, he should pay special attention to the power
with 220V 800V AC and 330V DC which will cause hurt and damage to persons!
1.1.2 Precautions for antistatic
Movement and friction will both bring static electricity which causes serious damages to integrated
IC. Though static charge is little, when a limited quantity of electric charge is added to large
scaleintegrated IC, as the capacitance is very small in the meantime, now the integrated IC is very much
easy to be struck through by static electricity or the performance will decrease. Thus static electricity
prevention is of extraordinary importance. The following are several measures to prevent static
electricity:
1. Use a piece of electric conduction metal with the length of about 2 metres to insert into the earth,
and Fetch the lead wire from the top of the surplus metal and connect to the required static electricity
device. The length and depth of the metal embedded under the earth should be determined according to
the wettability of the local soil. For humid places, it may be shorter, and longer and deeper for dry places.
If possible, it can be distributed and layed in terms of “#” shape.
2. On operating table-board, the antistatic table cushion should be covered and grounded.
3. All devices and equipments should be placed on the antistatic table cushion and grounded.
4. Maintenance personnel should wear antistatic wrist ring which should be grounded.
5. Places around the operating position should also be covered with electric conduction cushion or
Painted with antistatic paint.
1.1.3 Precautions for display screen
1. Display screen is breakable article, so please protect carefully when carrying and prevent fingers
or hard objects striking the screen to damage structure of the screen.
2. When cleaning screen, do not use organic chemicals. You should use cloth and use small
amount of special cleaning liquid in places difficult to clean.
- 1 -
1.1.4 Precautions for laser head
1. Do not stare at laser head directly, for laser emission will occur when laser head is working,
which will Hurt your eyes!
2. Do not use wiping water or alcohol to clean laser head, and you may use cotton swab.
1.1.5 About placement position
1. Never place TV in positions with high temperature and humidity.
2. Avoid placing near high magnetic fields, such as loudspeaker or magnet.
3. Positions for placement should be stable and secure.
1.2 Maintenance method
1.2.1 Electric resistance method
Set the multimeter in resistance position and test whether the numerical value of resistance of each
point in the circuit has difference from the normal value to judge the trouble spot. But in the circuit the
tested numerical value of resistance is not accurate, and the tested numerical value of integrated IC's
pins can only be used for reference, so the elements should be broken down for test.
1.2.2 Voltage method
Voltage method is relatively convenient, quick and accurate. Set the multimeter in voltage position
and test power supply voltage of the player and voltage of a certain point to judge the trouble spot
according to the tested voltage variation.
1.2.3 Current method
Set the multimeter in current position and test current of the player of a certain point to judge the
trouble spot. But when testing in current method, the multimeter should be series connected in the
circuit, which makes this method too trivial and troublesome, so it is less frequently used in reality.
1.2.4 Element substitution method
When some elements cannot be judged good or bad, substitution method may de adopted directly.
1.2.5 Cutting method
Cutting method should be combined with electric resistance method and voltage method to use.
This method is mainly used in phenomena of short circuit and current leakage of the circuit. When
cutting the input terminal voltage of a certain level, if voltage of the player rises again, it means that the
trouble lies in this level.
- 2 -
1.2.6 Visualized method
Directly view whether abnormalities of collision, lack of element, joint welding, shedding welding,
rosin joint, copper foil turning up, lead wire disconnection and elements burning up among pins of
Elements appear. Check power supply of the machine and then use hands to touch the casing of part of
elements and check whether they are hot to judge the trouble spot. You should pay more attention when
using this method to check in high voltage parts.
1.2.7 Comparison method
A same good PC board is usually used to test the correct voltage and waveform. Compared these
data with those tested through fault PC board, the cause of troubles may be found.
Through the above maintenance method, theoretical knowledge and maintenance experience, all
difficulties and troubles will be readily solved.
1.3 Required device for maintenance
Audio Generator
Digital oscillograph ( 100MHE)
SMD rework station
Multimeter
Soldering iron
Pointed-month pincers
Cutting nippers
Forceps
Electric screw driver
Terminals connecting cord
Headphone
Microphone
- 3 -
Chapter Two
Functions and Operation Instructions
2.1 Section One TV SEGMENT
2.1.1 Features
Technical Features
#High quality color TFT panel
#Maximum resolution 1366x768 for LD2216K.
#Built-in DVD player with Slot-in mechanism
#Multisystem TV tuner with NICAM decoding
#Biuilt-in stereo audio system
#USB port to playback compatible files stored on flash memory of external devises
#Composite video ,audio input
#Component, RGB/SCART and VGA video inputs
#Integrated HDMI/HDCP compliant receiver
#Digital coaxial output for multi-channel sound playback
#Headphones output
#Universal holder for furniture or wall fixation with 270 rotation angle
TV Channels Receiving and External Signal Playback
#Automatic and fine tuning functions with 100 channels memory
#Adjustable brightness, contrast, saturation, hue and 4 preset image settings
#Tone and sound balance adjustment and 4 preset audio settings
Disc playback mode
#Digital video playback: DVD-Video, Super VCD, VCD compatibility
#MPEG-4 standard support
#Digital audio playback: CD-DA, and HDCD WMA compatibility
#Digital graphic albums playback: Kodak Picture CD and JPEG
#Compatible disc types: CD-R/CD-RW, DVD-R,/DVD-RW, DVD+R/DVD+RW
#Russia, Cls and Baltic States adaptation interface and filenames ID3-tags and CD-Text support
simplifies device operation
#”Q-Play” function provides direct playback and allows to skip commercial that is not possible to
rewind
#”Browser” function provides easy access to playback control
#Automatic screensaver function
#Parental control function to protect children from watching inappropriate discs
#Super wide range of operating power supplies(~100-240V) automatic short circuit protection
PC monitor mode
#Wide resolutions range
#RGB setting and 4 presets of color temperature
#Tone and sound balance adjustment and 4 preset audio settings
#External audio signal playback.
- 4 -
2.1.2 Set list
LCD TV
Remote Control
AAA Battery
RCA-RCA cord
2XRCA-2XRCA cord
Power cable
Microphone
Microphone cable
User manual
Warranty Card
Album with track list
Press to switch between channels /to
choose menu item.
26
MENU / button
DVD disk menu/PBC function/Press to
return to the previous channel.
27
Q-PLAY button
Press to turn the Q-PLAY mode on.
28
KARAOKE button
Press to set karaoke function..
29
SUBT button
Press to change the subtitles language.
30
Button
Press to switch on the device/into standby
mode.
1
EJECT button
Press to open/close the disc tray.
2
LANG button
Press to change language.
3
DISP button
Press to display the disc information.
NICAM button
4
Press to choose audio mode.
5
Numeric buttons
6
BROWSE button
Press to turn on/off the browser function.
CURSOR buttons (UP/ DOWN/ LEFT
7
/RIGHT)
OK button
8
9
SETUP button
Press to switch to setup mode.
10
Button
Press to turn on/off the “Virtual Keyboard”
function.
11
SOURCE button
Press to change the TV /DVD /AV/
SCART/ HDMI/VGA/ mode.
12
Button
Press to start rewind/rewind scanning.
13
Button
Press to skip backward.
14
REPEAT button
Press to repeat.
15
A-B button
Press to repeat the selected section.
16
Button
Press to turn on/off the sound.
17
VOLUME+/-button
Press to adjust the volume.
18
USB/DVD button
Press to select USB/DVD mode.
Button
19
Press to skip forward.
20
Button
Press to stop the playback.
21
Button
Press to forward scanning.
22
Button
Press to playback/pause.
ZOOM+/-button
23
Press to zoom in/out.
24
CANCEL button
Press to go one level back/cancel current
operation.
- 6 -
2.1.4 CONNECTION AND STARTING
SELECTRETURN
ENTER
SETUP
(1 )Switching interfaces
For LD2216k
1
HDMI IN
2
AUDIO VIDEO IN
Used for external signal source
3
connection
COAXIAL OUT
Meant for multi-channel sound playback.
4
SCART socket
Meant for external audio video signal
source connection. There is no need to
5
use additional audiocord.
PC AUDIO IN
Meant for PC stereo audio output
6
connection.
RF input
7
Meant for antenna connection.
VGA port
Meant for PC connection.
2.1.5 TV MODE
This LCD TV can store up to 100 channels
and enables to scan channels thought automatic,
manual and fine tuning scanning mode. Built-in
TV tuner supports stereo audio playback in
NICAM system.
(1) Adjusted channels selection
#Press +CH-buttons on the left panel or CH
buttons on the remote control each time, when
you want to change a channel.
#Use numeric buttons to enter the number of the
channel.
#Press button to return to the previous
channel.
(2) Default picture settings
selection
#You may select one of the default picture
settings:
USER, STANDARD, DYNAMIC and SOFT.
#You may adjust necessary parameters in the
device menu.
#Turn to PICTURE item on this page for details.
(3) Default sound settings
selection
#You may select one of the default sound
settings:
USER, MUSIC, FILM and NEWS.
#You may adjust necessary parameters in the
device menu.
#Turn to SOUND item on this page for details.
(4 )Accompanying sound type
#Only some of the TV channels have stereo
accompanying sound in NICAM system.
#Press NICAM button to select accompanying
sound.
(5 ) TV settings
#Press SETUP button to display the menu.
#Use cursor buttons on the remote control or
+CH-buttons on the left panel to select the
item. Use buttons to adjust selected
parameter. Use OK button for confirmation.
Press SETUP button again to return to the
main menu or to exit TV SETUP.
(6) Picture
#Select PICTURE item to adjust picture
parameters.
#You may adjust BRIGHTNESS, CONTRAST,
SATURATION, TINT, SHARPNESS and
COLOR TEMP.
- 7 -
NOTE:
You can’t adjust TINT while watching TV
channels.
(7) Sound
#Select SOUND item to adjust sound
parameters.
#You may adjust BALANCE, BASS, TREBLE
and NICAM.
ATTENTION! We recommend watching TV at
halfof maximum level of the sound. Continuous
listening at higher level may lead to hearing
reduction.
(8) TV setup
Select TV SETUP item to adjust channels.
You may select CHANNEL, COLOR SYSTEM,
SOUND SYSTEM, FINE TUNING, AUTO
SEARCH, MANUAL SEARCH and CHANNEL
EDIT.
#CHANNEL item enables to select the number of
adjustable channel.
#COLOR SYSTEM item can be changed
between: AUTO, PAL and SECAM. We
RETURN
SETUP
recommend to set this item to AUTO.
#SOUND SYSTEM item can be changed
between B/G, D/K, Land l.
#FINE TUNING item enables to adjust the
channel frequency accurately.
#MANUAL SEARCH item enables to scan
channels manaully.
#AUTO SEARCH item enables to adjust
channel setting automatically.
#CHANNEL EDIT submenu enables to
select,skip and swap, the channel.
#CHANNEL parameter enables to select current
channel.
#SKIP function enables to make current channel
inaccessible while using CH+/- button to
browse channels.
#SWAP function enables to select the channel
number to swap with current channel.
#SAVE parameter enables to confirm the swap
function.
(9) OSD setup
You may select LANGUAGE, OSD HPOSITION, OSD V-POSITION, OSD DURATION
and TRANSPARENCY.
#LANGUAGE item enables to select the OSD
language.
#OSD H-POSITION item enables to adjust OSD
horizontal position.
#OSD V-POSITION item enables to adjust OSD
vertical position.
#OSD DURATION item enables to adjust the
main menu display duration time.
#TRANSPARENCY item enables to adjust
transparency of OSD.
(10) Function
You may select SCALE, NOISE REDUCE,
SLEEP and RESET.
#SCALE item enables to switch the video format
between “FULL”, “ZOOM1”, “ZOOM2”,
“NORMAL” and “PANORAMA”. Between “16:9”
and “4:3”.
#NOISE REDUCE item enables to reduce the
noise of TV image.
#SLEEP item enables to set the sleep time.
#RESET item enables to reset all values to
default.
- 8 -
(11) Video settings
#Press SETUP button to display interrelated
setting menu.
#The setting menu in the external video signal
playback mode is much the same as that of TV
MODE. It is not repeated here. You can refer to
page 10 and 11.
NOTE
In external video signal playback mode TV
SETUP item is inaccessible.
2.1.6 PC MONITOR MODE
(1)Picture
Select PICTURE item to adjust picture
parameters.
You may adjust BRIGHTNESS, CONTRAST,
COLOR TEMPERARURE and AUTO CONFIG.
#Select COLOR TEMPERATURE subment to
adjust color temperature of the picture.
#COLOR TEMP. Item can be set to :USER,
NORMAL, WARM and COOL.
#RED, GREEN and BLUE items enables to
adjust RGB value of color temperature.
#Use AUTOCONFIG to configure display
parameters automatically.
NOTE:
The picture can be displayed incorrectly while
adjusting.
(3)Monitor setup
Select MONITOR SETUP item to adjust
such parameters as H-POSITION ,V-POSITION,
FREQUENCY and PHASE.
SLEEP and RESET.
#SCALE item enables to switch the video format
between “FULL”, “CENTER”.
#NOISE REDUCE item enables to reduce the
noise of TV image.
#SLEEP item enables to set the sleep time.
#RESET item enables to reset all values to
default.
(2)Sound
Select SOUND item to adjust sound
parameters.
You may adjust BALANCE, BASS, TREBLE
and NICAM.
- 9 -
2.2 Section Two DVD SEGMENT
2.2.1 Controls and functions
Front panel controls
For LD2216K
USB port
PLAY/PAUSE button
Press to playback/pause.
STOP button
Press to stop the playback.
EJECT button
Press to open/close the disc tray.
Disc tray
Note:
This model does not support the 8cm disc. Do
not insert that type of disc into this device to
avoid disc jam.
2.2.2 FUNCTION SETTINGS
(1) Function selection and
change
#Press the SETUP key to show the setup menu.
You will see the following image on the screen,
as show on the figure:
#Select the desired menu item using the
UP/DOWN buttons button; press the OK key
for confirmation.
Language
Image
Sound
Playback
Karaoke
Preference
Parental control
Initial help
Reset settings
Exit
Setup menu
DVD menu
Sound track
Subtitle
Mp4 Subtitles
Off
1.For example, if you wish to change the image
settings, you have to select the image item and
press the OK or RIGHT key.
4:3
Off.
+48
+48
4:3
AUTO
PAL
NTSC
M.
0
0
High
L.
Medium
Low
0
0
TV system
TV format
Sharpness
Gamma
Brightness
Contrast
Hue
Saturation
AUTO
2.Using the UP/DOWN buttons, select the
desired item and press OK or RIGHT button.
For example, select the Sharpness item.
Settings will appear on the screen. Then
select the desired sharpness level and press
OK for confirmation.
3. Press LEFT for exit to previous menu level.
4. Press SETUP to exit setup menu.
TV system
TV format
Sharpness
Gamma
Brightness
Contrast
Hue
Saturation
AUTO
Off.
+48
+48
(2) Language settings
1. Setup menu: interface language set-up
#Options: Russian, English, Ukrainian,
Romanian.
#Default option: English.
2.DVD menu: selection of disc menu language
3. Sound: selection of translation language
#Disc menu/translation language options:
OTHERS item using the wheel and press OK.
Enter the language code using the numeric
buttons and press OK.
- 10 -
#If the language you selected is not recorded on
the DVD disc, another available language will be
used.
4. Subtitles: selection of subtitles language
#Options: Off, Russian, English, Estonian,
Latvian, Kazakh, Romanian, Belarusian,
Ukrainian, and Chinese and Others.
#Default option: off.
#Selection of other languages: select the
OTHERS item using the wheel and press OK.
Enter the language code using numeric buttons
and press OK.
#If the language you selected is not recorded on
the DVD disc, another available language will
be displayed.
5.MP4 Subtitles: selection of subtitles language
#Options: Russian, English, Ukrainian and
Romanian.
#Default option: English.
(3) Image settings menu
1. TV system: TV system selection
#Options: Auto, PAL, NTSC.
#Default option: PAL.
2.TV Format: image ratio settings
#Options: 4:3 pan& scan, 4:3 letterbox and 16:9
TV.
#Default option: 4:3 LB.
#Some discs are recorded with support of only
one ratio. The selected ratio must comply with
the TV screen.
8.Saturation: adjustment of image saturation
Adjustment of image brightness, contrast,
hues and saturation:
#Select the desired item of the image adjustment
section using the UP/DOWN buttons. Press OK
or RIGHT key to start adjusting the relevant
option.
#Change the option value using the wheel.
#Upon completion press the LEFT button of the
UP/DOWN buttons to return to image setup
menu.
(4) Sound settings menu
1.Digital audio output
a).SPDIF format: set-up of digital audio output
options.
#Options: RAW, PCM.
#Default options: RAW.
#When you select the RAW option, the not
decoded signal is transferred to the LCD TV’s
digital outputs, the decoded signal is
transferred to analog outputs. Decoding is
performed by the built-in decoder of the LCD TV.
This feature is meant to ensure that signal
decoding at digital outputs is performed by an
external device(e.g.an amplifier).
#If you select the PCM option, a PCM coded
signal will be transferred to the LCD Tv’s digital
outputs.
4. Gamma: adjustment of image color
temperature
#Options: High, Medium, Low, Off.
#Default option: Off.
5.Brightness: adjustment of image brightness
6.contrast: adjustment of image contrast
7.Hues: adjustment of image hues
B)LPCM:set-up of digital audio output options to
comply with different amplifiers and receivers.
#Options: 48kHz 16 bit, 96 KHz 24 bit,192kHz 24
bit.
#Default option: 48kHz 16 bit.
2. Sound correction
A)Equalizer: equalizer modes
#Options: Off, rock, pop, live dance, techno,
classics, soft.
#Default option: off.
B)Echo: echo effects
#Options: Off, concert, living room, hall,
Bathroom, cave, arena, church.
#Default option: off.
C)Tone balance: adjustment of tone balance
level.
#Adjust the tone balance level using the cursor
buttons.
#Press the LEFT button to return to sound
correction set-up menu.
- 11 -
(5) Playback settings
1. DVD
Advertisement skip: skip the unskippable
block while playing a DVD disc.
#Options: Yes, No.
#Default option: Number
2. VCD/SVCD
PBS menu: PBC menu on/off
#Options: On, Off.
#Default option: On.
#If On option is set, while reproducing discs, a
menu will appear, in which you can select the
order of playing the disc content. If the Off
option is set, the reproducing of content is
performed in the order, in which it is recorded
on the disc.
DVD
VCD/SVCD
Files
Repeat
All types
Advertisemenu No
off
3.Files: selection of reproduced files on the disc
#Options: Audio, Pictures, Video, All types.
#Default option: All types.
4.Repeat: file repeat mode
#Options: Off, Single, All.
#Default option: Off.
(6) Karaoke settings menu
1.Microphone: microphone on/off
#Options: On, Off.
#Default option: On.
2.Kar.help: karaoke -disc playback mode
#Options: L Channel, R Channel, No ast, No voc.
#Default option: No voc assist.
#Press LEFT key of the UP/DOWN buttons to
return to karaoke settings menu.
(7) Preference settings
1.Screensaver: screen saver on/off
#Options: On, Off.
#Default option: Off.
2.Gr.equalizer: spectrum analyzer
#Options: On, Off.
#Default option: Off.
Screen saver
Gr.equalizer
On
Off
On
Off
(8) Parental control settings
1.Category: set-up of age restrictions to prevent
children from seeing undesirable discs.
#Options: Any, Kid, G,PG, PG-13, PGR, R, NC-
17.
#Default option: Any.
any
Kid
G
Allowed..
Set password
2.Change password: set-up of a four-digit
password to change the level of age restrictions.
#Default option: 7890
4.Echo:echo level while playing the karaoke-disc
#Adjust the echo level Using the UP/DOWN
buttons.
Old password
New password
Verify
OK
Cancel
(9) Initial setup menu
#Press the RIGHT key to enter the initial settings
menu, then select the desired item using the
cursor buttons and press OK key for
confirmation.
#While being in this menu section, you cannot
return to the previous level by pressing the
LEFT key.
Auto
PAL
NTSC
- 12 -
(10) Reset settings to default
#Resetting all settings and restoring default
options, except age restrictions level and
Password.
Load factory settings
OKCancel
(11) Exit settings menu
#Select the exit item using the UP/DOWN
buttons and press the OK key to exit the menu.
Language
Image
Sound
Playback
Preference
Parental control
Initial setup
Reset to defaults
Exit
2.2.3 OTHERS
(1) Useful notes
#To extend the service life of your LCD TV make pauses of not less than 30 seconds between switching
off and repeatedly switching on the LCD TV.
#Disconnect the LCD TV from the wall outlet after shutdown.
#Some LCD TV’S functions may not be applied to some discs.
#Use supply sources of rated voltage, otherwise the LCD TV may not function or be damaged.
#In case of the LCD TV’s occasional stops, please switch the power supply off and then on again.
(2)Trouble shooting
Please check probable causes of malfunction before addressing the service center.
- 13 -
(3)Technical characteristics
#We are permanently improving the quality of our products; hence the product’s design, functionality
and technical characteristics may be modified without prior notice.
#We do not guarantee that all discs can be played smoothly due to the disc quality, disc recording
quality and recording format.
- 14 -
Chapter Three Principle and Servicing
Section One Principle of the player
3.1.1 Wiring Diagram.
Part One TV
D153D-3
4941455
USB
BOARD
DVD LOARD
2380370
DVD-PICK UP
TD-S208S-SV1(62SV1 pick-up)-B
USBP
USBM
GND
GND
DVD_+3.3V
+5V
SW1
SW2
GND
LD-DVD
NC
+5V
MDI
LD-CD
VRDVD
VRCD
NC
E
+5V
V20
GND
F
B
A
RFO
IOA
D
C
TKTK+
FC+
FC-