BBK DK1410SI User manual

service manual
DK1410SI DK1440SI
DK1470SI DK1480SI

Catalog
1.1 Safety precautions
1.1.1 Power supply
1.1.2 Precautions for antistatic
1.1.3 Precautions for laser head
1.1.4 About placement position
1.2 Maintenance method
1.2.1 Visualized method
1.2.2 Electric resistance method
1.2.3 Voltage method
1.2.4 Current method
1.2.5 Cutting method
1.2.6 Element substitution method
1.2.7 Comparison method
1.3 Required device for maintenance
2.2 Controls and functions
2.2.1 Front panel controls
Chapter One About Maintenance
Chapter Two Functions and Operation Instructions
2.1 Features
2.2.2 Rear panel connections
2.2.3 VFD display general view
2.2.4 Remote control general view
2.3 FUNCTION SETTINGS
2.3.1 Function selection and change
2.3.2 Language settings
2.3.3 Image settings menu
2.3.4 Sound settings menu
2.3.5 Playback settings
2.3.6 Karaoke settings menu
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2.3.7 Preference settings
2.3.8 Parental control
2.3.9 Initial setup menu
2.3.10 Reset to defaults
2.3.11 Exit settings menu
2.3.12 Channel delay set-up
Chapter Three Principle and Servicing
Section One Principle of the Player
Section Two Unit Circuit Principle
3.2.1 Decode circuit
3.2.2 Servo circuit
3.2.3 Laser power control circuit
3.2.4 Main axis control circuit
3.2.5 Control panel circuit
3.2.6 Power circuit
3.2.9 Video circuit
Section Three Servicing Cases
Section Four Servicing Parameters
3.4.1 Signal waveform diagram
3.4.2 Key point voltage
3.1.1 Function introduction
3.1.2 Block diagram principle of the player
3.2.7 Audio power amplifying circuit
3.2.8 Output circuit
3.3.1 Servicing cases
3.3.2Troubleshooting flow chart
Section Five Function Introduction to IC
3.5.1 function introduction to MT1389E
3.5.2 Function introduction to SDRAM
3.5.3 Function introduction to FLASH
3.5.4 Function introduction to D5954
3.5.5 Function introduction to 24LLC020
3.5.6 Function introduction to 74HCT125
3.5.7 Function introduction to Cd4052
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3.5.8 Function introduction to SAA6588
3.5.9 Function introduction to Cs5340
3.5.10 Function introduction to 4558/4580
3.5.11 Function introduction to TLV272
3.5.12 Function introduction to TAS5508
3.5.13 Function introduction to TAS5112
3.5.14 Function introduction to 5L0380
3.5.15 function introduction to LM431A
3.5.16 Function introduction to Hs817
3.5.17 Function introduction to Pt2579
PCB board & Circuit diagram
Section One PCB board
Section Two circuit diagram
Chapter six BOM List
Chapter Four Disassembly and Assembly Proces
Chapter Cinque
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Chapter One About Maintenance
1.1 Safety precautions
1.1.1 Power supply
When maintenance personnel are repairing DVD players, he should pay special attention to the
power board with 220V 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 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.
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1.1.4 About placement position
1. Never place DVD player 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 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.
1.2.2 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.
1.2.3 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.
1.2.4 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.
1.2.5 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.
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1.2.6 Element substitution method
When some elements cannot be judged good or bad, substitution method may de adopted directly.
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
Digital oscillograph ( 100MHE)
TV set
SMD rework station
Multimeter
Soldering iron
Pointed-month pincers
Cutting nippers
Forceps
Electric screw driver
Terminals connecting cord
Headphone
Microphone
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2.1 Features
Formats:
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Digital video playback of DVD-Video, Super VCD and VCD formats.
MPEG-4 compatibility:Playback of Divx 3.11, Divx 4, Divx 5, Divx pro and XviD formats.
Playback of music discs in DVD-Audio format.
Playback of musical compositions in DC-DA and HDCD formats.
Playback of compressed musical files in Mp3 and WMA formats.
Playback of Karaoke-discs in DVD, VCD and CD+G formats.
Playback of photo al bums, recorded in Kodak Picture CD and JPEG digital formats.
Audio:
192 kHz/24 bit audio D/A converter.
Coaxial and optical audio outputs, providing digital sound playback in Dolby Digital/LPCM formats.
Coaxial and optiacl audio inputs, providing connection of external digital signal sources.
Stereophonic audio outputs for connection to TV and amplifier.
Integrated digital multi-channel sound decoders, providing playback of Dolby Digital and DTS
audio tracks.
Integrated Dolby Pro Logic ll decoder, provding transformation of stereophonic signal to multi-
channel one.
Microphone input providing karaoke functions.
Headphones output.
Video:
108 kHz/12 bit video D/A converter.
Progressive scan(Y Pb Pr)video signal output, securing high resolution and absence of image
flicker.
Composite and component(Y Cb Cr)S-video and RGB/SCART video outputs, providing advanced
switching capabilities.
NTSC/PAL transcoder.
Support of many camera angels, dubbed languages and subtitles.
Sharpness, Gamma, Brightness, Contrast, Hue and Saturation adjustment.
Miscellaneous:
Support of CD-R/CD-RO, DVD-R/DVD-RW, DVD+R/DVD+RW
FM/AM tuner with RDS support.
USB port, providing playback of files of supported formats from external flash-memory devices.
KARAOKE+, providing extended karaoke features.
Easy to use on-screen menu in Russian.
Support of Russian file names, ID3 tags and CD-text.
"Memorty” function which can load the last disc position on stop.
"Capture” function, auto loading selected bookmarked image as the wallpaper.
Q-Play function that will bring you to the main movie title and skip unskippable commercials.
Virtual control panel function makes your control of the device much easier when playing the
movie.
Chapter Two
Functions and Operation Instructions
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Auto protecion of TV screen.
Child lock, parental control(protection against playing undesirable discs)
Auto voltage selection(~110-250V)and short-circuit protection.
2.2 Controls and functions
2.2.1 Front panel controls
1STANDBY/POWER button
Press to switch the device on/into standby.
Disc tray
OPEN/CLOSE button
Press to open/close the disc tray.
PREV button
Press to playback from the previous bookmark
NEXT button
Pres to playback from the next bookmark
REW button
Press to playback fast reverse/radio station
tuning
Button
Press to playback fast reverse/radio station
tuning
FWD
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SOURCE button
Press to switch between DVD-receiver/Audio
input/Tuner/Digital audio input.
PLAY/PAUSE button
Press to playback/pause
STOP button
Press to stop the playback
Microphone input
VOLUME adjuster
Press to adjust volume.
VFD display window
Headphones input
USB port
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2.2.2 Rear panel connections
1AM Antenna input
FM Antenna input
Left front speaker input (output from the build in
amplifier)
Right front speaker input (output from the build-in
amplifier)
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Right Surround speaker input (output from the
build-in amplifier)
Audio input
Stereophonic audio output
Component video output Y Cb (Pb) Cr (Pr)
Composite video output
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5Center speaker input (output form the build-in
amplifier)
Subwoofer input (output from the build-in
amplifier)
Left Surround speaker input (output from the
build-in amplifier)
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S-Video output
SCART-type AV connector
Coaxial digital audio output
Optical digital audio output
Optical digital audio input
Coaxial digital audio input
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2.2.3 VFD display general view
1MP3-disc
CD-, VCD-or SVCD-disc
DVD-disc
Repeat
AM/FM
Radio tuning mode
Tuner tuning mode
Stereo
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Programmed radio station
Friquency
Playback time
Chapters or tracks
Playback or pause
PBC
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2.2.4 Remote control general view
1EJECT button
Press to open/close the disc tray.
DVD button
Press to switch to DVD mode
AUDIO button
Press t switch to audio input mode
DISP button
Press to display the disc information
LANG button
Press to change the canuage
SLEEP button
Press to turn the sleep mode on
Q-PLAY button
Press to tum the Q-play mode on
EQ button
Press to adjust the equalizer
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9BASS+/- button
Press to adjust subwoofer
BOOST button
Press to bass boosting
BROWSER button
Press to turn on/off browser function
JOG DIAL wheel
Functions are set manually. Default function:
zoom
SETUP button
Press to switch to setup mode.
Button
Press to capture and bookmark image for the
wallpaper
Button
Press to start reverse or forward scanning
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