BBK LD1506DK User manual

Service Manual
LD1506DK(RU)
Model version:S40QV2.00 V2.10
1
LD1506DK

Catalog
Chapter One About Maintenance
1.1 Safety precautions
1.1.1 Power supply
1.1.2 Precautions for antistatic
1.1.3 Precautions for display screen
1.1.4 Precautions for laser head
1.1.5 About placement position
1.2 Maintenance method
1.2.1 Electric resistance method
1.2.2 Voltage method
1.2.3 Current method
1.2.4 Element substitution method
1.2.5 Cutting method
1.2.6 Visualized method
1.2.7 Comparison method
1.3 Required device for maintenance
Chapter Two Functions and Operation Instructions
2.1.5TV mode
2.1 Section One TV Segment
2.1.1 Features
2.1.2 Set list
2.1.3 Controls and functions
2.1.4 Connection and starting
2.1.6 PC monitor mode
2.2 Section Two DVD Segment
2.2.1 Controls and functions
2.2.2 Function settings
1
1
1
1
1
2
2
2
2
2
2
2
2
3
3
3
4
4
4
5
5
7
7
9
10
10
10

2.2.3 Others
Chapter Three Principle and Servicing
The previous manual: TV part
Section One Principle of the player
3.1.1 System control principle
3.1.5 Power circuit
3.1.6 Video circuit
Section Two
Section Three
The next manual: DVD part
Section One Principle of the player
3.1.2 Video circuit
3.1.3 Servo circuit
3.1.4 USB/CARD circuit
3.1.5 Decode circuit
Section Three
Section One PCB Board
3.1.2
3.1.4 Audio circuit
Troubleshooting flow chart
Waveform diagram
3.1.1 Audio circuit
Section Two Troubleshooting flow chart
Waveform diagram
Chapter Cinque PCB board & Circuit diagram
Section Two Circuit diagram
Chapter Six BOM List
Overall wiring diagram
3.1.3 Block diagram of the player
Chapter Four Block Diagram of Play Disassemblyand Explosion
15
13
17
17
17
17
18
19
20
20
21
23
36
45
45
45
45
46
46
47
48
54
59
61
61
65
88
3.1.7Block diagram of DVB 21

Chapter One About Maintenance
1.1 Safety precautions
1.1.1 Power supply
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 -

- 2 -
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.

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 -

2.1.1 Features
Technical Features
#High quality color TFT panel(15 inch for LD1506DK, 19 inch for LD1906DK )
#Maximum resolution 1024X768 for LD1506DK,1440X900 for LD1906DK.
#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
#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 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.
Chapter Two
Functions and Operation Instructions
2.1 Section One TV SEGMENT
- 4 -

- 5 -
2.1.2 Set list
LCD TV
Remote Control
AAA Battery
Power Adapter
Power Cord
RCA-RCA cord
2XRCA-2XRCA cord
Microphone
Microphone cable
Wall Mount Holder
Kickstand
Screw M5X15
Screw M4X10
Screw PA5X25
Screw PM4X10
Expandable pipe
User manual
Warranty Card
Karaoke disc
1pcs
1pcs
2pcs
1pcs
1pcs
1pcs
1pcs
2pcs
2pcs
1pcs
1pcs
1pcs
1pcs
4pcs
4pcs
4pcs
1pcs
1pcs
1pcs
(1) Panel controls and indication
SETUP button
Press to switch to setup mode
_VOL+button
Press to adjust the volume.
1
2
Left panel _CH+button
Press to switch between channels/to
choose menu item.
SOURCE button
Press to choose the playback mode.
3
4
2.1.3 CONTROLS AND FUNCTIONS
For LD1506DK
For LD1906DK

- 6 -
STANDBY button
Press to switch on the device/into
standby mode.
POWER button
Turn on/off the power.
Headphones output
Microphone input 1
Microphone input 2
6
7
5
Disc tray
USB port
EJECT button
Press to open/close the disc tray.
STOP button
Press to stop the playback.
PLAY/PAUSE button
Press to playback/pause.
Remote control sensor
Power supply indicator
8
13
9
14
15
16
10
11
12
Front panel
Right panel
1
4
3
8
2
10
5
7
6
9
11
(2) Remote control general view
EJECT button
Press to open/close the disc tray.
LANG button
In DVD and DVB mode, press to change
language..
DISP button
Press to display the disc and the current
source information..
RATIO button
Press to switch a pect ratio mode.
Numeric buttons
-/-- button
Press to switch one or two-digit program
number..
CURSOR buttons
OK button
SETUP button
Press to enter setup mode.
Button /GOTO
Press to return to the previous channel in
TV and DVB mode/To play from a certain
time point in DVD mode.
SOURCE button
Press to change the mode.
Button /INFO
Press to start rewind/rewind scanning/To
display the information about channel and
program in DVB mode.
Button
Press to skip backward.
REPEAT button
Press to repeat.
A-B button
Press to repeat the selected section.
Button
Press to turn on/off the sound.
VOLUME+/-button
Press to adjust the volume.
12
14
15
13
16
17

USB/DVD button
Press to switch between USB/DVD modes.
Button
Press to skip forward.
Button
Press to stop the playback.
Button AUDIO
Press to forward/forward scanning/In DVB
mode, to change sound track between left,
right and stereo.
Button /TV/
Press to playback/pause/Switch between
TV and radio modes, valid in DVB mode.
ZOOM+/-button
Press to zoom in/out.
FAV button
In DVB mode, open favourite channel list.
CH button
Press to switch between channels /to
choose menu item.
MENU / EPG button
DVD disk menu/PBC function/To display
the program guide valid in DVB mode.
ANGLE button
Press to change the camera angle.
Q-PLAY button
Press to turn the Q-PLAY mode on.
SUBT button
Press to change the subtitles language.
Button
Press to switch on the device on/into
standby mode.
21
20
22
23
25
24
27
26
28
30
29
SELECT RETURN SETUP
ENTER
(1 )Switching interfaces
2.1.4 CONNECTION AND
STARTING
5
7
8
6
3
4Y Cb(Pb) Cr(Pr)
PC AUDIO IN
Meant for PC stereo audio output
connection.
COAXIAL OUT
Meant for multi-channel sound playback.
AUDIO VIDEO IN
Used for external signal source connection.
12 V socket
Meant for adapter connection.
2.1.5
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.
TV MODE
2
1RF input
Meant for antenna connection.
VGA port
Meant for PC connection.
SCART socket
Meant for external audio video signal
source connection. There is no need to
use additional audiocord.
(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 page.13 for details.
- 7 -
For LD1506DK and LD1906DK
18
19

- 8 -
(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.
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.
CHANNEL, COLOR SYSTEM, SOUND
SYSTEM, FINE TUNING, AUTO SEARCH,
MANUAL SEARCH and CHANNEL EDIT.
#CHANNEL item enables to select the number of
adjustable channel.
#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.
RETURN SETUP
#SWAP function enables to select the channel
number to swap with current channel.
#SAVE parameter enables to confirm the swap
function.
#FINE TUNING item enables to adjust the
channel frequency accurately.
#MANUAL SEARCH item enables to change
channel settings.
#AUTO SEARCH item enables to adjust channel
setting automatically.
#COLOR SYSTEM item can be changed
between: AUTO, PAL and SECAM. We
recommend to set this item to AUTO.
#SOUND SYSTEM item can be changed
between: B/G, D/K, Land I.

(9) Function
You may select LANGUAGE,
TRANSPARENCY, SLEEP and RATIO.
#LANGUAGE item enables to select the OSD
language.
#TRANSPARENCY item enables to adjust
transparency of OSD.
#SLEEP item enables to set the sleep timer.
#RATIO(only for LD1906DK)item can be
changed between 16:9 and 4:3.
#RESET item enables to reset all values to
default.
(10) Video settings
#Press SETUP button to display the menu.
#In external video signal playback mode the
menu is the same as the menu, described on
pages 12and 13.
NOTE:
In external video signal playback mode TV
SETUP item is inaccessible.
(1)Picture
Select PICTURE item to adjust picture
parameters.
You may adjust BRIGHTNESS, CONTRAST,
COLOR TEMPERARURE and AUTO CONFIG.
(2)Sound
Select SOUND item to adjust sound
parameters.
You may adjust BALANCE, BASS, TREBLE
and NICAM.
(3)Monitor setup
Select MONITOR item to adjust such
parameters as PHASE, FREQUENCY, H-
POSITION and V-POSITION.
(4)Function
You may select LANGUAGE,
TRANSPARENCY, SLEEP and RADIO.
#LANGUAGE item enables to select the OSD
language.
#TRANSPARENCY item enables to adjust
transparency of OSD.
#SLEEP item enables to set the sleep timer.
#RATIO(only for LD1906DK) item can be
changed between 16:9 and 4:3.
#RESET item enables to reset all values to
defaule except ratio function.
#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.
- 9 -
2.1.6 PC MONITOR MODE

2.2 Section Two DVD SEGMENT
2.2.1 Controls and functions
Front panel controls
For LD1506DK For LD1906DK
USB port
EJECT button
Press to open/close the disc tray.
STOP button
Press to stop the playback.
PLAY/PAUSE button
Press to playback/pause.
Disc tray
USB ports
Disc tray
EJECT button
Press to open/close the disc tray.
STOP button
Press to stop the playback.
PLAY/PAUSE button
Press to playback/pause.
- 10 -
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 DVD FUNCTION SETTINGS
(1) General setup
1.TV Display: This item is used to set the output picture ratio of this unit.
#Optional settings: Normal/PS, Normal/LB, Wide Squeeze; Default: Wide.
2.OSD language: This item is used to set the OSD language.
#Optional settings: English, Russian; Default: English.
3.Screen Saver: Open or close the screen saver.
#Optional settings: On, Off, Default: Off.
4.Last Memory: This player can save the currently played time point automatically when you leave the
current DVD disc playback(switch from DVD signal source to other signal source, enter standby state in
DVD mode.)
#Optional settings: On, Off. Default: On
NOTE:
When switching to DVD playback state again, this player can
automatically search the time point saved last time to continue
playing. If you want to play from the beginning. Please press
button Twice and then press button.

(2) Audio setup
1.Down mix mode: this item is used to set this
unit’s DOWN MIX mode to change multi channel
audio into 2-channel audio output.
#Optional settings: LT/RT, Stereo;
#Default: Stereo
2. Dolby Digital Setup:
Dual Mono:
#Optional settings: Stereo, L-Mono, R-Mono,
Mix-Mono;
#Default: Stereo
Dynamic:
#Set Dolby digital sound dynamic level,
#Default: Off.
5. HDCD: Set filter mode.
#Optional settings: Off, 1X, 2X;
#Default: 1X.
6. MIC Setup:
This item may be used to set volume and echo
of microphone.
MIC: Set MIC switch.
#Optional settings: On, Off; Default: On.
MIC VOL:
Volume adjustment of microphone.
# In micrpohone setup page, press button
to select “MIC VOL” item and press OK button
to enter adjustment menu. Press button to
adjust setup value. After adjustment, press OK
button to return to microphone setup page.
Echo Level:
Echo adjustment of microphone.
#In micrpohone setup page, press button to
select” Echo Level” item and press OK button to
enter adjustment menu. Press button to
adjust setup value. After adjustment, press OK
button to return to microphone setup page.
3.Equalizer:
#EQ Type:
Set equalizer type, optional settings: None,
Rock, Pop, Live, Dance, Techno, Classic, Soft;
Default: None.
#Bass Boost:
Enhance low frequency sound level, optional
settings: On, Off, default: Off.
#Super Bass:
Enhance very low frequency sound level,
optional settings: On, Off .default: Off.
#Treble Boost:
Enhance high frequency sound level, optional
settings: On, Off, default: Off.
4.3D Processing: Set reverberation mode.
#Optional settings: Off, Concert, Living Room,
Hall, Bathroom, Cave, Arena, Church;
#Default: Off.
(3) Video setup
1. Sharpness: This item is used to set the
sharpness of video outputs.
#Optional settings: High, Medium, Low; Default:
Med.
2.Brightness: This item is used to set the
brightness of video outputs.
3.Contrast: This item is used to set the contrast
of video outputs.
4.Gamma: This item is used to set the color
temperature of video output.
#Optional settings: High, Medium, Low, None;
#Default: None.
5.Hue: This item is used to set the hue of video
outputs.
6. Saturation: This item is used to set the
saturation of video outputs.
- 11 -

3.Audio:
This item is used to set the preference audio
language when playing.
4.Subtitle:
This item is used to set the preference subtitle
language when playing.
5.Disc menu:
This item is used to set the preference disc
menu language when playing.
#Default of disc menu language: English
NOTE:
#Audio, subtitle and disc menu language are
only effective in DVD mode.
#If the disc is not recorded with the language you
appointed, the unit will apply the language that
the disc appointed to play.
#Select other languages: press button to move
cursor to “OTHER” item. Press OK button and
then number buttons to input the language code
you desired. After input finishes, press OK button
again.
6.Parental: this item is used to set the parental
control ratings to prevent children from watching
restricted contents.(In the event the disc
supports this function)
#Optional settings: KID SAFE, G, PG, PG
13,PGR,R,NC17,ADULT, Off, Default: Off.
NOTE
#When changing the parental control ratings, a
password is needed. Please refer to the
following password item for details.
7.Country Region: Set the country region
according to your country.
(4) Preference setup
1. TV Type: To set the output video system of this
player.
#Optional settings: PAL, Auto, NTSC; Default:
PAL.
2. PBC: To set the PBC status.
#When playing SVCD, VCD2.0 discs, if PBC is
set On, this unit enters PBC playback mode; if
PBC is set Off, the unit will play the disc
according to track sequence.
Optional settings: On, Off; Default: On.
2.2.3 DVB FUNCTION
SETTINGS
Turn on the TV. Press SOURCE button to
change source to DVB, then you can enjoy the
rich and colorful contents of Digital Video
Broadcast!
In DVB mode, press SETUP button, then
press button to choose DVB item, the DVB
setup menu will be displayed as follow:
(1) General setup
1.TV Display: This item is used to set the output
picture ratio of this unit.
#Optional settings: Normal/PS, Normal/LB, Wide
Squeeze; Default: Wide.
2.OSD language: This item is used to set the
OSD language.
#Optional settings: English, Russian; Default:
English.
3.TV Type: To set the output video system of this
player.
#Optional settings: PAL, Auto, NTSC; Default:
PAL.
4.Default: This item is used to restore all settings
to the default value except” Parental control”
and “Password” in the setup menu.
- 12 -
8.Default: This item is used to restore all settings
to the default value except” Parental control” and
“ Password” in the setup menu.
(5) Password setup
Password: This item is used to set a six digit
password to enable you to change the parental
control ratings.
Password Mode: To set whether parental control
function needs a password, optional setting: On,
Off; Default: On.
Password: To change the password of the
parental control function, default:000000.

The DVB-T Setup Page is composed of five
parts: Area, Time Zone, parental Age, Antenna
Power, Channel Setup.
Note:
Press button to select different item, and
press OK or button to enter it.
Press button to return to the previous menu
or to exit the current menu.
1.Area
You can choose the area of your country.
Optional settings: Australia, Austria, Belgium,
Russian, Denmark, Estonia, Germany, Spain,
France, ltaly, Netherland, Taiwan, Others;
Default: Russian.
Note: you must set the correct area before
searching channels.
2.Time zone
To choose your time zone, it is set depending
on your country. If you don’t know the exact time,
please ask local time manage department.
Default:03:00
3.Parental age
This item is used to set the parental control
ratings. To prevent your children watching
undesired programmes.
#Optional settings:
4,5,6,7,8,9,10,11,12,13,14,15,16,17,18, Disable
Default: Disable
(3) DVB-T setup
4.Antenna power
Turn on/off antenna power supply. Optional
settings: On. Off; Default: Off
5.Channel setup
This item is used to search channels, edit the
channel list or your favourite channel list. View
program guide information,etc.
Auto Scan
Connect the antenna to the Therefore socket
on the TV, if the antenna needs a power supply,
turn on/off antenna power supply in the menu.
Then you can automatically search channels
without entering any other information.
In the scan process, the scan result will be
displayed in the Auto Scan window.
Press SETUP button to enter setup menu, then
choose the DVB item;
Using the button to select the Auto Scan
item, and press OK or button to select Start
item, then press OK button;
A prompting message will be displayed to
request that you confirm, select” OK” and press
the OK button to confirm.
Note: If you press the SETUP button during
scanning, the operation is stopped and a
prompting message will be displayed at the
buttom of Auto Scan window. Select” OK” and
press [OK] button to abort auto scan operation,
and the channels found until then will be saved.
And select “ Cancel” and press OK button to
return to auto scan process. Wait while the TV
searches for the channels, this may take a few
minutes.
Once you press OK button to start auto
search operation, all the saved channels will be
cleared.
Please don’t press any button during the course
fo default operation.
- 13 -
(2) Video setup
1.Hue: This item is used to set the hue of video
outputs.
2.Saturation: This item is used to set the
saturation of video outputs.

- 14 -
Manual scan
1. In setup menu, select” Manual Scan”, a
manual scan will be shown as follows:
2. Enter the frequency you want to scan by the
number buttons, then press “OK”, the scan
button seems be pressed, press “OK” again to
scan, a scan sign: scanning will be shown on the
window.
3. The scan result will be displayed on the right
halt of the manual scan window, you can save
the found channels or delete them if the TV has
the same program.
You can set the time when the reminding
signal should be displayed before the program
starts.
(4) Password setup
Password: This item is used to set a six digit
password to enable you to change the parental
control ratings.
Password Mode:
To set whether parental control function needs a
password, optional setting: On, Off; Default: On.
Password:
To change the password of the parental control
function, default:000000
Adjust channel
You can set your favorite channel, set
parental control age for some channels or delete
channel in Adjust Channel window.
1. Select channel using button, Press number
button 1 to set this channel as one of your
favorite channels.
2. Select channel using button, if you don’t like
this channel press number button 2 to skip it.
3. Select channel using button, press number
button 3 to set this channel as a protected one,
to prevent children from watching the undesired
program.
Note: If you set a channel protected, a password
will need to be inputted in the Protect Channel
window.
The default a password is 000000.
Channel remap
You can change every channel position as
you like in channel remap window.
Reserve channel
If you want to watch a special program on a
channel at a later time, you can reserve it. Then
a reminding signal will be displayed on screen
several minutes before it starts.
When playing a program on a channel, press
EPG button, then a program information list of
current channel will be displayed in a window,
move the cursor to PROGRAM, then press OK
button, a more detailed program list will be
displayed, move the cursor to the program which
you want to watch, then press OK button on
remote control as shown in the window. The
program is saved in your reserved channel.
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.

- 15 -
(2)Trouble shooting
Please check probable causes of malfunction before addressing the service center.
(3) Technical characteristics
Karaoke

#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.
- 16 -

- 17 -
Chapter Three Principle and Servicing
Section One Principle of the player
The previous manual: TV part
3.1.1 System control principle
System control schematic diagram is shown in the figure 3.1.1.1:
power control circuit
STV8317
PANEL_ON
control circuit
Inverter components
Remote control board
Reset circuit
Key-press board KEY1~KEY5
RESET
IR
INVERTER
ON/OFF
PANEL_ON
STBY
SDARX
SCLTX
IC-MST718MCU
SCART JACK
DVSTB
Figure 3.1.1.1 System control schematic diagram
DVSCK
DVSDA
MT1389HD
FB
SS
U104
PS25LV010
WP
SPICK
SPIDI
SPIDO
SPICZ
T4094 VSDA VSCK
Serial/parallel converter
U102
CD4094
Mute control circuit
FMUTE BH1418
MUTE
ONMUTE 8216_RST
ASW DVB Moduie
FSAV433
VS1
VS2
FCLK
FDATA
FCS BH1418
Emitting module ofRF
U101