BBK DV725SI Service Manual
  1. Manuals
  2. Brands
  3. BBK Manuals
  4. DVD Player
  5. DV725SI
  6. Service manual

BBK DV725SI Service Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
DV725SI
service manual

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the DV725SI and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for BBK DV725SI

Summary of Contents for BBK DV725SI

  • Page 1 DV725SI service manual...

  • Page 2: Table Of Contents

    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 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...
  • Page 3 2.4.6 Karaoke 2.4.7 Preference 2.4.8 Parental control 2.4.9 Initial setup 2.4.10 Rest to defaults 2.5 Specifications Chapter Three Principle and Servicing Section One Principle of the Player 3.1.1 Block diagramof the player 3.1.2 PCB board block diagramof the player 3.1.3 Introduction to IC used by this player Section Two Unit Circuit Principle 3.2.1 Brief introduction to loader 3.2.2 Servo circuit...
  • Page 4 3.5.1 function introduction to MT1389HD 3.5.2 function introduction to FLASH 3.5.3 function introduction to SDRAM 3.5.4 function introduction to D5954 3.5.5 function introduction to Cs4360 3.5.6 function introduction to Cs5340 3.5.7 function introduction to U209 (LM1117MP-1.8) 3.5.8 function introduction to HS0038A2 3.5.9 function introduction to 4558/4580 3.5.10 function introduction to TDA1308 3.5.11 function introduction to 24LLC020...

  • Page 5: Chapter One About Maintenance

    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 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.

  • Page 6: About Placement Position

    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...

  • Page 7: Element Substitution Method

    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.

  • Page 8: Chapter Two Functions And Operation Instructions

    Chapter Two Functions and Operation Instructions 2.1 Features This player has employed the new generation DV decode chip with built-in Dolby Digital decoder which will bring you to a brand-new AV ententainment world. The 2-laser super error-correction mechanism supports CD-R. Brand-new AV Effects 1.Compatible with DivX, MPEG4 discs to produce wonderful pictures.

  • Page 9: Rear Panel Illustration

    POWER switch 10 11 12 IR SENSOR OPEN/CLOSE button PREV button Display window PAUSE button PLAY button Power indicator NEXT button STOP button Disc tray Push button Slot flap for USB 2.2.2 Rear Panel Illustration Mixed Audio out jack Video Component /Y Pb Pr out jacks 5.1CH Audio Out jack Digital Audio Coaxial Out jack Video Out jack...
  • Page 10 MEMORY Button Save the playing point or jump to the saved point . DISP Button Display or hide disc information. NUMBER Buttons BROWSE Buttons switch new user interface. CURSOR Buttons SETUP Button Function Setup. Button Open/close the virtual keyboard function. KARAOKE Button Karaoke operation menu.

  • Page 11: Accessories

    5. Press [LEFT] button if you want to return to 2.3 Accessories the previous setup page. AUDIO/VIDEO CORD 1PCS 6.Press [SETUP ]to exit the setup menu. REMOTE 1PCS 2.4.2 Language AAA SITE BUTTERIES 2PCS WARRANTY CARD 1PCS Setup menu Russian USER MANUAL 1PCS DVD menu...

  • Page 12: Sound

    ◆ Optional setting: S-Video,Component , SCART . channel audio. ◆ ◆ Default: Component. Optional setting: Stereo, 5.1. ◆ ◆ When using RGB outputs from the SCART Default: Stereo. interface,please select RGB. Other wise , B.Stereo mix: To set the output means of the left please select Com-ponent,and when using S- or right audio when playing a Dolby disc with Video output please select S-Video.

  • Page 13: Playback

    ◆ c.Press [UP/DOWN] navigation keys to raise or Optional setting: Yes, NO ◆ lower volume. Default: Number d.Press [OK] or [LEFT] to return to the Delays in 2.VCD/SVCD: To set the PCB status. ◆ channels setting page. When playing Super VCD or VCD2.0 discs, if G.PRO Logic II: To set PRO Logic II to ON or the PCB is ON, the menu image displays.

  • Page 14: Preference

    2.4.7 Preference LED Control Gr. equalizer Screen saver 1.LED Control:This item is used set color of led on the front panel. ◆ Optional setting: On, Off. ◆ Default: On. 2.Gr. equalizer: This item is used to set wether the Dynamic Spectrum is allowed. ◆...

  • Page 15: Specifications

    2.5 Specifications Playable dlscs DVD-Video,Super VCD,VCD,DlvX 3.11,DlvX 4,DlvX 5,DlvX Pro,XvlD, CD-DA, CD+G,DVD-Audio,HDCD,MP3,WMA,Kodak Plcture CD,JPEG Inputs MIC Input,USB Outputs Audio Outputs Analog audio output: Stereo,Output 5.1CH Dlgltal audio output: Coaxlal,Optlcal Video Outputs Composlte,S-Video,Conponent Y Cb Cr,Proglesslve scan output Y Pb Pr,RGB/SCART Heedphones output Video characteristice Video amplitude:...

  • Page 16: Chapter Three Principle And Servicing

    Section One Principle of the Player 3.1.1 Block diagram of the player DV725SI is composed of decode circuit, servo circuit, audio circuit, video circuit, MIC circuit and power circuit. Block diagram of the player is shown in the following figure 3.1.1.1:...
  • Page 17 3.1.2 PCB board block diagram of the player PCB board block diagram of the player is shown in the following figure 3.1.2.1, DV725SI is a slot-in loader machine, with USB read function. Power board, AV output board and MIC board is the same with that of DV516SI, please refer to “...

  • Page 18: Introduction To Ic Used By This Player

    3.1.3 Introduction to IC used by this player Introduction to IC used by this player is shown in the following table: Semi-finished PCB IC model name Location Function name AZ431 U503 Precise voltage regulator Power board 5977K- HS817 U502 Photoelectric coupler VIPER22A U501 Power switch IC...

  • Page 19: Section Two Unit Circuit Principle

    Section Two Unit Circuit Principle 3.2.1 Brief introduction to loader 1. V725SI adopts phototonus dual slot-in and all-sealed whole steel loader with compact structure. A whole-steel disc press system is inside loader to tightly press the disc through three small steel plates to be better suitable to read those mal-fabrictaed and fake discs.
  • Page 20 Structure sends the disc out, disc detects through the photoelectric pipe (Q1) inside loader, after disc is in the specified position, TROUT changes into low level, and machine stops opening the disc door. To make understanding easy, we can refer to principle the illustration (irrelevant to the actual circuit and for reference only).

  • Page 21: Servo Circuit

    Note: 1. When reading DVD, there are only A, B, C, D signals. 2. When reading CD, there are A, B, C, D, E, F signals. 3. RFO=A+B+C+D. 4. Focus error signal=(A+C)-(B+D) Trace error signal=E-F. 3.2.2 Servo circuit Servo system of this player adopts SANYO loader + MTK decode solution (MT1389E+FLASH (16M) + SDRAM (64M)), and its servo circuit is mainly composed of front end signal processing, digital servo processing, digital signal processing IC MT1389E and drive circuit D5954, in which MT1389E is also the main composed part of decode circuit.
  • Page 22 After loader reads disc information, A, B, C, D, E and F signal are formed through photoelectric conversion to MT1389 (DVD only has A, B, C, D signals) and RF signal and output from pin 2~11, 18, 19 of MT1389 respectively, after amplifying processing of pre-amplifier inside MT1389, now signals are divided into 2 ways inside MT1389: one part, through summation amplifying and subtraction circuit inside MT1389, produces servo error signal, after digital servo signal circuit processing, forms corresponding servo control signals, outputs FOO, TRO, DMO and FMSO servo control signal from pin...

  • Page 23: Laser Power Control Circuit

    3.2.3 Laser power control circuit Laser power control circuit is shown as in the following figure 3.2.3.1: LDO-AV33 R301 4.7R TC302 47uF/16V LDO2 Q301 2SB1132-S 20/21 XS301 MT1389E Q302 2SB1132-S LDO1 TC303 47uF/16V 4.7R R302 LDO-AV33 Figure 3.2.3.1 Laser power control circuit diagram 2.

  • Page 24: Cd/Dvd Conversion Circuit

    3.2.4 CD/DVD conversion circuit 1. CD/DVD conversion circuit is shown as in the following figure 3.2.4.1: AVCC R308 R309 100K R311 Q305 3904-S XS301 MT1389E R310 100K Q304 Q303 2SK3018-S 2SK3018-S Figure 3.2.4.1 CD/DVD conversion circuit diagram 2. Working principle After loading disc in the player, IOA port of MT1389 is defaulted high level to make Q305 saturation on and form loop together with CD laser power control circuit on CD.

  • Page 25: Disc In/Out Circuit

    3.2.5 Disc in/out circuit 1. Disc in/out circuit is shown as the following figure 3.2.5.1: MO_VCC TC309 TC308 47uF/16V 47uF/16V R323 R324 220R 220R Q306 Q307 8550D 8550D LOAD+ LOAD- TRCLOSE TROPEN R325 R327 100R 100R TROPEN Q308 Q309 MT1389 8050D 8050D R328...

  • Page 26: Main Axis Control Circuit

    3. Key point voltage (unit: V) is shown as the following table: Q306 Q307 State Base electrode B Collector C Emittor E Base electrode B Collector C Emittor E Read disc 5.06 5.06 5.01 5.03 5.06 Open disc tray to 4.79 4.77 5.06...
  • Page 27 2. Function: disc is always in high speed rotation in the course of disc reading, when you need to open the door to change disc, MT1389 stops the positive direction drive signal which is given to main axis drive circuit, for the function of inertia disc is still rotating. If disc out order is performed at this time, disc will be abrasively damaged.

  • Page 28: Decode Circuit

    3.2.7 Decode circuit 1. Decode circuit block diagram is shown as in the following figure 3.2.7.1: SDCLK SDCKE DRAS MT 1389 A0~A20 SDRAM FLASH DQM0 AD0~AD7 DQM1 DQ0~DQ15 URST MA0~MA11 1.8V Reset Clock EEPROM voltage circuit regulating 24C02 U206 Figure 3.2.7.1 Decode circuit block diagram 2.

  • Page 29: Reset Circuit

    Audio, video output circuit: at present, MT1389 all integrates video D/A converter, MT1389E inside integrates audio D/A converter, manufactures select according to their own needs. Please refer to circuit principle diagram and audio circuit explanation for details. 3.2.8 Reset circuit 1.

  • Page 30: Video Circuit

    3.2.9 Video circuit 1. Video signal flow chart diagram is shown as in the following figure 3.2.9.1: XS204 AV output YUV1 VIDEO-SY board R252 L225 S-Video Jk703 VIDEO-SC YUV2 R253 L226 JK703 Video VIDEO-CVBS YUV3 VIDEO L227 R254 VIDEO XS701 VIDEO-G/Y YUV4 L228...

  • Page 31: Audio Circuit

    3.2.10 Audio circuit 1. Audio signal flow chart is shown in the following figure 3.2.10.1: SCALK TO headphone JK603 U603 XS603 XS703 AMDATA Cs5340 SBCLK U601B U601A MIC board MIC holder SLRCLK SDATA0 U209 SCART SDATA1 SDATA2 U210 SBCLK XS701 CS4360 Audio SLRCLK...

  • Page 32: Mute Circuit And Power-Off Quieting Circuit

    DV33 DV33 R279 R276 DV33 R277 R278 0R(DNS) 0R(DNS) C338 R288 C2132 C2158 10K(NC) U203 CS5340 SACLK MCLK FILT+ R289 REF_GND AMDATA SDOUT R287 C2133 OKA# AINR 150R SBCLK C2134 SCLK AINL SLRCK U2RST# LRCLK DV33 C2135 DV33 TC220 C339 C2130 C2131 C2149...

  • Page 33: Card Read Circuit

    MICROPHO 3.2.12 Card read circuit MT1389HD is with card read and USB read function. For model DV725SI, it cancels card read function on the basis of DV725S, so the socket XS207 on decode board is cancelled and USB socket XS205 is added. Here we mainly introduce principle of USB, shown in the figure 3.2.12.1, when machine is switching USB state, insert USB, decode board +5V supplies power for USB, USB begins to work.

  • Page 34: Av Output Board Circuit

    Mt1389 USB_5V USBPO USBMO MIC B oard A975SI-1 Jk901 USB jack Figure Card read 3.2.12.1 circuit 3.1.13 AV output board circuit 1. AV output board is mainly composed of audio/video output terminal, SCART output terminal, mode switch circuit and filtering circuit. output board outputs different signals to connect with the corresponding external equipment.

  • Page 35: Mic Circuit

    (2) SCART terminal pin function is shown as the following table: Signal Signal Name Function description Name Function description direction direction Network communication data A(B)OUT Audio right channel input line 2 A(B)IN Audio right channel output RETURN Pr signal ground A(A)OUT Audio left channel input RETURN...

  • Page 36: Headphone Circuit

    2. Working principle of MIC part: after microphone is inserted in MIC left, DET signal changes from low level to high level to make mute circuit of decode part off, no matter disc reading is available, audio signal may be outputted. If this signal has trouble, microphone will have no sound when playback stops. After signals inputted by microphone are being filtered, they output to pin 5 of U601, and signals after discharge output from pin 7 of U601, after being amplified for the second time, outputted from pin 1 of U601 to decode board directly for Karaoke signal processing, and overlap together with audio signal to...

  • Page 37: Power Circuit

    2. Working principle Realization of button function: when users are operating machine, button matrix circuit will produce a button function code that transmits to main CPU inside decode chip, CPU performs the corresponding switch to the function module inside system, and a control signal will produce to control OSD and panel display part to make the corresponding display at the same time.
  • Page 38 2. Working principle (1) Power grid filtering circuit: various electromagnetic radiation exists in surroundings, so it will produce interference to the inputted AC power, and the function of power grid filtering circuit is to filter these interference to make those that enter bridge rectification circuit are pure 220V AC power. (2) Bridge rectification and filtering circuit: the function of this circuit is to converse electric supply into DC power, the voltage after being rectified and filtered is 1.414 times of input power, so the DC 。...

  • Page 39: Section Three Servicing Cases

    Section Three Servicing Cases 3.3.1 Servicing cases 【 】 Example 1 Symptom: headphone has no sound Description: audio, video output of DVD player is normal, headphone out has no sound Analysis and troubleshooting: power on, use oscillograph to check pin 1, 3 of XS702 on AV board and there is waveform output, use multimeter to test volatge of pin 3, 5 of U603 (TDA1308) and it is 5V without abnormality, test voltage of pin 8 and it is also 5V and power supply is normal, use oscillograph to test pin 2, 6 of U603 and there is waveform input, check pin 1, 7 and there is no output, so we doubt...
  • Page 40 【 】 Example 5 Symptom: power not on Description: no +5V voltage output Analysis and troubleshooting: 1. Insert power cord, use multimeter to test whether 220V AC input is ； normal ans it is normal; 2. Test whether each voltage input on decode board XS203 is normal and find that+5V has no input, and others are normal;...
  • Page 41 Analysis and troubleshooting: according to symptom, we judge that servo circuit of this machine is normal, the main trouble lies in loader, after changing loader, trouble is removed. 【 】 Example 9 Symptom: power not on Description: no +5V, SA5V has no voltage output, +3.3V is abnormal Analysis and troubleshooting: 1.
  • Page 42 to test pin 2, 6 of U603 and there is waveform input, check pin 1, 7 and waveform output is normal, so we judge that the contact of headphone holder has trouble, after changing headphone holder, trouble is removed. 【 】...

  • Page 43: Troubleshooting Flow Chart

    3.3.2 Troubleshooting flow chart 1. Troubleshooting flow chart for “ Power on”is shown in the following figure 3.3.2.1: Power on Whether Whether Whether power-on power board power 3.3V 1.8V power is Check power board picture can be supply is normal normal displayed Check...
  • Page 44 Check Whether Check MT1389 and power whether MT1389 sound is normal supply has audio signal output Check audio output circuit Whether Whether Whether screen display is MT1389 has signal to firmware is correct Upgrade again normal panel Check panel circuit Change 1389 Figure 3.3.2.1 Troubleshooting flow chart for “...
  • Page 45 2. Troubleshooting flow chart for “ No disc reading”is shown in the following figure 3.3.2.2: (the symptom of no disc reading of this player is that the disc door opens automatically, before troubleshooting, judge whether loader is good, if loader structure is good, check according to the following flow chart) No disc reading Whether...
  • Page 46 Check Check MT1389 whether LD01 is normal Check Q301, Q302 and Change socket XS301 Change 24P flat cable Whether Whether disc rotation speed is Change loader there is R signal normal Change loader Whether there is ABCDEF signal Check XS301 and flat cable Check MT1389 and peripheral Figure 3.3.2.2 Troubleshooting flow chart for “...
  • Page 47 3. Troubleshooting flow chart for “ Video has no output”is shown in the following figure 3.3.2.3: Video has no output Check whether output Resume setup mode mode is switched correctly Check whether 27M clock is Check clock circuit normal Check whether power Whether supply of video output...
  • Page 48 4. Troubleshooting flow chart for “ 5.1CH has no sound output”is shown in the following figure 3.3.2.4: 5.1CH has no sound output Whether +9V -9V power supply Check power supply voltage is normal Whether decode chip Check decode chip has audio signal output Whether part of channels has no...
  • Page 49 5. Troubleshooting flow chart for “ Left channel has no sound”is shown in the following figure 3.3.2.5: Left channel has no sound Check whether pin 186 MT1389 has trouble of MT1389 has sound output Check whether pin 2 Check the line between of U209 has audio signal MT1389 and U209 input...
  • Page 50 6. Troubleshooting flow chart for “ MIC has no sound output”is shown in the following figure 3.3.2.6: MIC has no sound output Check whether pin 5 MIC socket of U601 has signal input Check whether pin 7 Check U601 and power of U601 has signal supply loop output...
  • Page 51 7. Troubleshooting flow chart for “ Headphone has no sound output”is shown in the following figure 3.3.2.7: Headphone has no sound output Check Check audio processing whether XS603 has circuit signal input Check whether pin 6, 2 Check the element and line of TDA1308 has signal between X603 and U603 input...
  • Page 52 8. Troubleshooting flow chart for “ No +5V voltage”is shown in the following figure 3.3.2.8: No +5V voltage Whether cathode of D510 has Check D510 and transformer power output Whether pin 7 of CN502 has Check +5V filtering circuit power output Figure 3.3.2.8 Troubleshooting flow chart for “...
  • Page 53 9. Troubleshooting flow chart for “ Voltage output is unstable”is shown in the following figure 3.3.2.9: Voltage output is unstable Check Check LM431 and whether LM431R pin sampling resistor has voltage Check whether LM431R is Change LM431 normal Check whether photoelectric Change photoelectric coupler coupler is normal...
  • Page 54 10. Troubleshooting process for “ Disc in/out”is shown as in the following figure 3.3.2.10: Disc in/out trouble Whether Change loader frame is loader frame normal Disc in/out not to proper position, disc not out, disc in automatically Disc not OUT Disc door not IN Check Check MT1389 and disc...

  • Page 55: Section Four Waveform Diagram

    Section Four Waveform diagram This section collects signal waveform diagram of audio, video and each unit circuit with the purpose to help servicing personnel to judge where trouble lies in accurately and quickly to improve servicing skills. For the difference of oscillograph's type, model and tuner, a certain difference may exist, so the servicing personnel are expected to pay more attention to check in daily operation.
  • Page 56 、 、 、 、 ） 3. A signal waveform diagram of pin 9 of Xs301(B C D E F 4. DMO signal (when there is main axis rotation) waveform diagram of pin 37 of U201 (Mt1389) 5. FMO signal (when there is feed) waveform diagram of pin 38 of U201 (MT1389) - 52 -...
  • Page 57 6. TRO signal (when there is trace) waveform diagram of pin 41 of U201 (MT1389) 7. FOO signal (when there is focus) waveform diagram of pin 42 of U201 (MT1389) 8. Waveform diagram of pin 29 (when no disc in) of U214 (FLASH) - 53 -...
  • Page 58 9. Waveform diagram of pin 38of U211 (SDRAM) 10. Video signal waveform diagram 11. ACLK (12.2878MHZ): waveform diagram for external clock signal - 54 -...
  • Page 59 12.ABCK (3.07195MHZ): waveform diagram for bit clock signal 13. ALRCK (48KHZ): waveform diagram for left/right channel clock signal 14. SDATAO: waveform diagram for mixed left/right channel digital signal - 55 -...
  • Page 60 15. SDATA1: waveform diagram for surround left/right channel digital signal (now the disc being played is 2.1CH, and this signal has no output; if 5.1CH, the form is the same with that of SDATA0) 16. SDATA2: waveform diagram for centre subwoofer digital signal 17.
  • Page 61 18. LEF#: waveform diagram for subwoofer channel analog signal 19. AMDAT: waveform diagram for microphone signal after 5340 A/D conversion 20. SPDIF: waveform diagram for optical/coaxial digital audio signal - 57 -...
  • Page 62 21. 27M clock signal waveform diagram 22. Reset circuit waveform diagram URST# Dv33 - 58 -...

  • Page 63: Section Five Function Introduction To Ic

    Section Five Function Introduction to IC 3.5.1 function introduction to MT1389HD 1. Description MT1389HD is a cost-effective DVD system-on-chip (SOC) which incorporates advanced features like MPEG-4 video decoder, high quality TV encoder and state-of-art de-interlace processing. Based on MediaTek’ s world-leading DVD player SOC architecture, the MT1389E is the 3rd generation of the DVD player SOC.
  • Page 64 (2)High Performance Analog RF Amplifier Programmable fc Dual automatic laser power control Defect and blank detection RF level signal generator (3)Speed Performance on Servo/Channel Decoding DVD-ROM up to 4XS CD-ROM up to 24XS (4)Channel Data Processor Digital data slicer for small jitter capability Built-in high performance data PLL for channel data demodulation EFM/EFM+ data demodulation Enhanced channel data frame sync protection &...
  • Page 65 Block-based sector addressing (9)Video Decode Decodes MPEG1 video and MPEG2 main level, main profile video (720/480 and 720x576)Decodes MPEG-4 Advanced Simple Profile Support DivX 3.11/4.x/5.x Home Theater Profile Support Nero-Digital Smooth digest view function with I, P and B picture decoding Baseline, extended-sequential and progressive JPEG image decoding Support CD-G titles (10)Video/OSD/SPU/HLI Processor...
  • Page 66 Support NTSC, PAL-BDGHINM, PAL-60 Support 525p, 625p progressive TV format Automatically turn off unconnected channels Support PC monitor (VGA) Support Macrovision 7.1 L1, Macrovision 525P and 625P CGMS-A/WSS Closed Caption (13)Progressive Scan Video Automatic detect film or video source 3:2 pull down source detection Advanced Motion adaptive de-interlace Minimum external memory requirement (14)Outline...
  • Page 67 Analog input DC coupled main beam RF signal input B Analog input DC coupled main beam RF signal input C Analog input DC coupled main beam RF signal input D Analog input DC coupled sub-beam RF signal output A Analog input DC coupled sub-beam RF signal output B Analog input DC coupled sub-beam RF signal output C...
  • Page 68 Analog output Focus error monitor output Analog output Tracking error monitor output TEZISLV Analog output TE slicing Level Analog monitor output (6) RFVDD3 Analog output Analog Power RFRPDC Analog Input RF ripple detect output RFRPAC Analog output RF ripple detect input(through AC-coupling) HRFZC Analog output High frequency RF ripple zero crossing...
  • Page 69 LVTTL3.3 Input, Monitor hall sensor input ADIN1 Schmitt input, pull up, AD input 1 (Digital pin) GPIO with analog input path GPIO for ADIN1 General Power/Ground (18) DVDD18 Power 1.8V power pin for internal digital circuitry DVSS Ground 1.8V ground pin for internal digital circuitry DVDD3 Power 3.3V power pin for internal digital circuitry...
  • Page 70 InOut 4~16mA,SRPU Microcontroller address/data 4 InOut 4~16mA,SRPU Microcontroller address/data 3 InOut 4~16mA,SRPU Microcontroller address/data 2 InOut 4~16mA,SRPU Microcontroller address/data 1 InOut 4~16mA,SRPU Microcontroller address/data 0 IOA 0 InOut 4~16mA,SRPU Microcontroller address IOA 1 InOut 4~16mA,SRPU Microcontroller address 1/ IO IOA 2 InOut 4~16mA,SRPU Microcontroller address 2/ IO IOA 3...
  • Page 71 InOut 4mA, URD# Microcontroller read strobe, active low SRPD,SMT InOut 4~16mA, UP1_2 Microcontroller port 1-2 SRPD,SMT InOut 4mA, UP1_3 Microcontroller port 1-3 SRPD,SMT InOut 4mA, UP1_4 Microcontroller port 1-4 SRPD,SMT InOut 4mA, UP1_5 Microcontroller port 1-5 SRPD,SMT InOut 4mA, 1) Microcontroller port 1-6 UP1_6 SRPD,SMT 2) I2C clock pin...
  • Page 72 1) Audio left/right channel clock of SPDIF input SPLRCK SDO0 Inout 2) While SPDIF input is not used: I) Serial interface port 0 data-out II) GPIO 1) Audio bit clock of SPDIF input SDCS0 2) While SPDIF input is not used: SPBCK ASDATA Inout...
  • Page 73 1) Audio serial data 2 (Center/LFE) 2) DSD data right surround channel 3) Trap value in power-on reset: InOut 4mA, ASDATA3 I) 1: manufactory test mode PD,SMT II) 0: normal operation 4) While only 2 channels output: I) GPO_0 1) Audio serial data 3 (Center-back/ Center-left-back/Center-right-back, in 6.1 or 7.1 mode) INT1# InOut 4mA,...
  • Page 74 1) AUDIO DAC Left Surround channel output 2) While internal AUDIO DAC not used: GPIO Output a. SDATA2 b. GPIO 1) AUDIO DAC Left Surround channel output 2) While internal AUDIO DAC not used: GPIO Output a.SDATA0 b. GPIO 1) AUDIO DAC Center channel output GPIO Output 2) While internal AUDIO DAC not used: GPIO...
  • Page 75 1) Vertical sync input/output 2) While no External TV-encoder: Output VSYN V_ADIN1 I) Vertical sync for video-input 4MA, SR II) Version AD input port 1 III) GPIO 1) Video data output bit 7 2) While no External TV-encoder: INT3# Output I) Microcontroller external interrupt 3 YUV7 ASDATA...
  • Page 76 InOut PRST# Power on reset input, active low PD,SMT InOut PD,SMT Microcontroller ICE mode enable XTALO Output 27MHz crystal output XTALI Input 27MHz crystal input USB_VSS USB Ground USB ground pin USBP Analog Inout USB port DPLUS analog pin USBM Analog Inout USB port DMINUS analog pin USB_VDD3...
  • Page 77 IO_10(RD 1) Digital Video output Y bit 1 InOut Non-pull 2) GPIO IO_11(RD 1) Digital Video output Y bit 2 InOut Non-pull 2) GPIO IO_12(RD 1) Digital Video output Y bit 3 InOut Non-pull 2) GPIO IO_13(RD 1) Digital Video output Y bit 4 InOut Non-pull 2) GPIO IO_14(RD...
  • Page 78 DQM1 InOut Data mask 1 IO_18 (DQS1) InOut Non-pull GIPIO InOut DRAM data 8 InOut DRAM data 9 RD10 InOut DRAM data 10 RD11 InOut DRAM data 11 RD12 InOut DRAM data 12 RD13 InOut DRAM data 13 RD14 InOut DRAM data 14 RD15 InOut...

  • Page 79: Function Introduction To Flash

    3.5.2 function introduction to FLASH FLASH 16Mbit memorizer, FLASH function pin are shown as follows: Name Function Voltage (when no disc) Data direction 　 1-9, 16-25, 48 AO-A19 20 bit address bus Write enable signal, low level is effective 3.23V RESET Reset, low level is effective 3.23V...

  • Page 80: Function Introduction To D5954

    DQ4 Data bus MA11 Address bus 0.04 　 　 VDDQ 3.3V power supply 3.18 Blank pin 0.01 DQ5 Data bus Clock enable signal 1.22 DQ6 Data bus 0.45 System clock input 1.68 　 VSSQ Ground UDQM Data in/out screen-shielded signal 2.42 　...

  • Page 81: Function Introduction To Cs4360

    VINSL- Main axis control signal input 1.42 1.42 VOSL External feedback resistor 1.17 1.21 VINFFC Focus feedback signal input 1.92 2.59 2.36 5V power supply 5.38 5.04 5.01 PVCC1 5V power supply 5.38 5.04 5.03 PGND Ground 0.01 0.01 0.01 VOSL- Main axis drive reverse voltage output 1.87...

  • Page 82: Function Introduction To Cs5340

    sampling accuracy, highest sampling frequency, dynamic range of 02DB, SNR of -90DB. When in 3.3V voltage working mode, power consumption is 105MV. Function pin introduction is shown as the following table. Voltage Voltage Name Function when no Name Function when no disc (V) disc (V) Serial audio power supply, +3.3V...
  • Page 83 # A/D inner core power supply voltage is 3.3V ~ 5V Support 1.8V ~ 5V logic level Auto mode selection Compatible with CS5341 pin 2. Pin function of CS5340 is shown as the following table: Name Function Mode selection (input) - decide running mode of element MCLK Mainclock (input) -Δ-δclocl source of adjuster and digital filter Logic power supply (input) - digital input/outputted forward power supply...

  • Page 84: Function Introduction To Hs0038A2

    3.5.8 function introduction to HS0038A2 Infrared receiver HS0038A2 or HS0038B has three pins: power supply anode (pin 2), power supply cathode (pin 1) and data output port (pin 3). If 5V is used for power supply, when keeping the state, voltage of data output port is also 5V (HS0038B requires pull-up resistor).

  • Page 85: Function Introduction To 24Llc020

    (+) 5V power 　 　 Ground supply 3.5.11 function introduction to 24LLC020 1. 24LLC02 is a writable and programmable read-only memorizer, with its casing and pin function shown in the following figure 3.5.11.1: Figure 3.5.11.1 Casing and pin function explanation 2.

  • Page 86: Function Introduction To Fdsh321

    3.5.12 function introduction to FDSH321 Pin 6.7.8 of 5L0380 is controlled by feedback pin 3 to make it on for a while and off for another while to form pulse DC to control coupling quantity of transformer. When secondary output voltage of transformer is on the high side, under the control of pin 3, disconnection time of pin 6¡...

  • Page 87: Function Introduction To 2501

    3.5.14 function introduction to 2501 2501 is a photoelectric coupler, shown as the figure 3.5.14.1. The right side is a light emitting diode, which sends out light of different intensity according to the strength of voltage inputted from the right side, generates photocurrent of different intensity on the left side according to light of different intensity, and outputs from position D.

  • Page 88: Chapter Four Disassembly And Assembly Process

    Chapter Four Disassembly and Assembly Process DVD players manufactured in BBK are largely identical but with minor differences and are mainly composed of loader components, control panel components, decode and servo board components, power board components, power amplifier board components, MIC board components and AV board components.

  • Page 89: Section One Pcb Board

    Chapter Cinque PCB board & Circuit diagram Section One PCB board 5.1.1 Surface layer of MIC Board TC615 XS601 G602 JP606 U601 JP602 JP607 G601 TC605 TC616 TC601 JP605 R629 R611 XS603 TC617 JP601 TC619 TC614 TC618 TC620 JP608 G603 6977K-0 AGND MIC601...
  • Page 90 5.1.2 Bottom layer of MIC Board R621 C601 R607 R606 C609 R602 R604 L601 C602 R603 C605 R623 Q601 R601 R627 C616 R633 L604 R631 R628 U603 C604 R632 R626 R636 C617 R634 - 86 -...
  • Page 91 5.1.3 Surface layer of AV OUT Board JP702 VGND1 JP721 JK705 JK706 C712 R708 JK702 JK701 AGND1 JK703 V702 JP710 JP722 JP704 JP711 R711 JP703 L709 JP718 L710 R712 R709 V701 7969-5 V703 XS701 L714 DVD 2004/8/25 JP701 XS702 JP726 TC701 TC702 TC706...
  • Page 92 5.1.4 Bottom layer of AV OUT Board R713 R702 C716 L716 L711 C728 C706 C705 C704 C711 L715 C713 C703 C701 C702 ZD704 L712 L703 L704 C725 L706 C726 ZD702 ZD703 ZD701 L708 R704 L702 R710 C707 L701 C710 C723 C724 C719 C722...
  • Page 93 5.1.5 Surface layer of KEY SCAN Board TC402 LED402 U402 LED401 K401 XS402 LED403 XS401 TC401 4997-3 DVD 2005/08/05 - 89 -...
  • Page 94 5.1.6 Bottom layer of KEY SCAN Board DZ403 R405 R403 C405 DZ407 DZ401 C403 C404 R414 C411 R413 Q401 R411 DZ402 R402 R410 DZ406 C410 C402 R409 R412 C409 R408 C401 U401 DZ408 Q402 DZ405 R419 R404 R418 L401 DZ409 C406 DZ404 - 90 -...
  • Page 95 5.1.7 Surface layer of DECODE&SERVO Board - 91 -...
  • Page 96 5.1.8 Bottom layer of DECODE&SERVO Board - 92 -...

  • Page 97: Power Board

    5.1.9 Power Board CN503 L505 D508 TC501 G504 C508 HIGH R503 R513 VOLTAGE T501 G503 TC503 G501 D507 BC505 R514 CN501 TC504 JP505 L509 AGND D505 BCN501 JP504 TC506 TC515 ~220V C518 JP501 L507 R516 AGND C503 D503 TC508 BCN503 D510 D504 ~220V...
  • Page 98 Grid1 仓门装饰灯输出 DZ405 DZ406 DZ407 Grid1 控制，高亮蓝灯 R401 LED402 CLOCK DATA Grid2 Grid2 1N4148-SE 1N4148-SE 1N4148-SE Grid3 Grid3 C401 121(DNS) Grid4 Grid4 R420 R402 R411 5.1K Grid5 Grid5 100R CLOCK LED2 Grid6 Grid6 C402 R412 121(DNS) Grid7 5.1K Grid7 Q401 R403 3904 Seg1...
  • Page 99 AVCC V1P4 JITFO C219 JITFN 89V33 C223 L203 APLLVDD3 4.7uH R308 R309 RFVDD3 89V33 PLLVDD3 20pF 100K R211 C224 ADACVDD L204 100uH R209 C237 C238 C239 C229 L205 2N3904 R303 TC203 750K Q305 R311 FBSMT C240 TC204 4.7R DVD: 0V 100uF/16V 3904-S 220uF/10V...
  • Page 100 UPD[15..0] R258 U207 75R(DNS) UPA[20..0] L208 R252 DV33 VIDEO_SY FBSMT D209 1*16MBit_FLASH(TSOP) L225 1N4148*2 1.8uH C279 TC219 DQ15 Q215 BYTE 47uF/16V DQ14 3906-S(DNS) MA10 DQ13 L207 A10/AP DQ10 DQ15/A-1 R246 C283 C284 MA11 DQ12 VGND FBSMT(DNS) DQ11 R234 DBA0 DQ11 BA0/A13 DQ12 DQ14...
  • Page 101 R271 R2111 24K 20K(DNS) U204 DV33 CS4360 C2111 R2153 0R(DNS) 89_AR MUTE1 +A9V R2129 MUTEC1 R2117 R2123 SDATA0 4.7K 4.7K 6.8K SDIN1 AOUTA1 R2135 TC246 SDATA1 SDIN2 AOUTB1 CH-R SDATA2 MUTE2 SDIN3 MUTEC2 SBCLK TC240 SCLK AOUTA2 C2117 C2123 10uF/16V SLRCK 10uF/16V LRCK...
  • Page 102 L701 +10V A+10V R709 C701 330R R704 R708 4.7K L702 C702 R710 PDAT0 V702 V701 8050 2.2K 8050 JK701 C716 102 C723 L703 VGND C727 R705 R714 C703 4.7K 2.2K AGND R715 A+10V A+10V C726 C725 L704 AGND R711 JK706 C704 L713 FB 2.2K...
  • Page 103 C616 JK601 PHONEJACK TC617 TC619 R625 47uF/16V R631 100uF/16V R622 3.9K R633 -9VA 4.3K C619 R627 R605 104(DNS) TC616 C602 5.1K(DNS) 47uF/16V R635 C621 XS603 R637 104(DNS) R629 3P2.0 22R(DNS) 3.3K AGND Q601 R621 8050D +9VA R630 TC614 C604 3.3K R638 AGND 47uF/16V...
  • Page 104 L505 D508 HER105 10uH/1A TC503 TC504 C508 470uF/25V 470uF/25V R513 1K(DNS) L509 D507 HER105 10uH/1A LED+5V SA+5V TC515 R514 R510 R503 C502 1000uF/10V TC508 D502 D503 470R 470R(DNS) 103/1KV JP501 1000uF/10V(DNS) 39K/2W 1N4007 1N4007 L507 HER303 D510 10uH/2A TC505 TC506 C511 TC501 C518...

  • Page 105: Chapter Six Bom List

    Chapter six BOM List MATERIAL MATERIAL NAME SPECIFICATIONS LOCATION CODE DV725SI（RU）SILVER[1389HD] AV BOARD　　　　　　　　5447738 0090181 SMD RESISTOR 1/16W 100O±5% 0603 R702 0090002 SMD RESISTOR 1/16W 2.2O±5% R706 0310066 SMD CAPACITOR 50V 102 ±10% 0603 C701~C706,C716,C723~C728 0310222 SMD CAPACITOR 25V 104 ±20% X7R 0603 C710　　　　①...
  • Page 106 50V 20P±10% NPO 5mm C712 0780050 TRIODE S8050D V701~V703 1940026 SOCKET 3P 2.0mm XS702 0000167 CARBON FILM RESISTOR 1/4W33O±5% R708 DV725SI（RU）SILVER[1389HD] DECODE BOARD　　 　 2523S-0　 1.2/V5.0 R213,R214,R225,R230,R231,R252~R257 0090001 SMD RESISTOR 1/16W 0O±5% 0603 ,R276,R279,R334,R292,R318,R331,L228, L230,L232 0090272 SMD RESISTOR 1/16W 1O±5% 0603 R304~R307,R321 0090106 SMD RESISTOR 1/16W 4.7O±5% 0603...
  • Page 107 MATERIAL MATERIAL NAME SPECIFICATIONS LOCATION CODE 0090255 SMD RESISTOR 1/16W 24K±5% 0603 R2113~R2116 0090019 SMD RESISTOR 1/16W 4.7K±5% 0603 R2117~R2128 0090189 SMD RESISTOR 1/16W 30K±5% 0603 R2111,R2112 R210,R215,R281~R284,R308,R310,R210 0090034 SMD RESISTOR 1/16W 100K±5% 0603 1,R2147~R2152 0090197 SMD RESISTOR 1/16W 150K±5% 0603 R319,R320 0090211 SMD RESISTOR...
  • Page 108 MATERIAL MATERIAL NAME SPECIFICATIONS LOCATION CODE 0310055 SMD CAPACITOR 16V 333 ±10% 0603 C226 0310056 SMD CAPACITOR 16V 473 ±10% 0603 C221,C222 C207~C209,C211,C214,C216~C218,C22 5,C227~C236,C244~C254,C261~C266,C 272,C274,C279,C280,C301~C303,C305, 0310207 SMD CAPACITOR 50V104 ±20% 0603 C315,C316,C332~C334,C338,C339,C345 ,C346,C2131,C2149,C2158,C2137~C214 8,C2150~C2157,C313,C314,C2135 ⑤ C207~C209,C211,C214,C216~C218,C22 5,C227~C236,C244~C254,C261~C266,C 272,C274,C279,C280,C301~C303,C305, 0310222 SMD CAPACITOR 25V 104 ±20% X7R 0603 C315,C316,C332~C334,C338,C339,C345 ,C346,C2131,C2149,C2158,C2137~C214...
  • Page 109 6P 1.0mm SMD,SUBMIT MEET WITH 1940198 CABLE SOCKET XS302 CLASP 1940140 CABLE SOCKET 14P 1.0mm STRAIGHT DUAL LINE PLUG XS204 1632949 2523S-0 DV725SI（RU）SILVER[1389HD] MAIN PANEL　 5447067 LIGHT TOUCH RESTORE 1340003 HORIZONTAL 6×6×1 K401 SWITCH 0620002 RADIATION DIODE F 3 RED...
  • Page 110 SMD RESISTOR 1/16W 510O±5% 0603 R414,R418,R419 0390095 SMDMAGNETIC BEADS FCM1608K-221T05 L401 0780041 SMD TRIODE 3906(100-300) SOT-23 Q402 1632607 4997-3 DV725SI（RU）SILVER[1389HD] 　5446732 OK BOARD　　　　　　 0090003 SMD RESISTOR 1/16W 10O±5% 0603 R621,R622 0090009 SMD RESISTOR 1/16W 330O±5% 0603 R601 0090012 SMD RESISTOR 1/16W 560O±5% 0603...
  • Page 111 MATERIAL MATERIAL NAME SPECIFICATIONS LOCATION CODE 0090030 SMD RESISTOR 1/16W 56K±5% 0603 R627,R628 0090034 SMD RESISTOR 1/16W 100K±5% 0603 R617 0310047 SMD CAPACITOR 50V 101 ±5% NPO 0603 C606, C607, C616, C617 0310066 SMD CAPACITOR 50V 102 ±10% 0603 C608 0310072 SMD CAPACITOR 50V 103 ±10% 0603...
  • Page 112 F 0.6 SHAPED 5mm JP601 ~ JP608 1980046 EARPHONE SOCKET ST-301-030-100 JK601 GROUND CHIP OF POWER 3870115 AB903 G601, G602 BOARD DV725SI（RU）SILVER[1389HD] POWER BOARD 5446731 2100010 CONNECTED CORDS F 0.6 SHAPED 5mm JP502,JP510,JP519,JP520 2100003 CONNECTED CORDS F 0.6 SHAPED 7.5mm JP501,JP509,JP514,JP516,JP518...
  • Page 113 23000219 FUSE T1.6AL 250V BELT F501　　　　（25） 2300028 FUSE T1.6AL 250V WITH LEAD FEET F502　　　　（25） GROUND CHIP OF POWER 3870115 AB903 G503 BOARD 1563850 @5977K-5 UL DV725SI（RU）SILVER[1389HD] REMOTE CONEROLLER 5471666 0310048 SMD CAPACITOR 50V 151±5% NPO 0603 C802,C803 - 109 -...
  • Page 114 CONDUCT GLUE OF 3850126 RC026-01R 3# REMOTE CONTROL 4631016 GLUE BAG 85×250 5070070 SELF-TAPPING SCREW PB 2.3×6 COLOR ZINC DV725SI（RU）SILVER[1389HD] SUBSIDIARY PANE 5446037 0620076 RADIATION DIODE 3B3HC COLORLESS WITH BLUE LED903 0620040 RADIATION DIODE 3B 4SC WHITE ISSUE BLUE LED901,LED902...
  • Page 115 0700007 SMD DIODE 1N4148 C903,C904　　　　（28） 0310543 SMD CAPACITOR 50V 104 ±10% X7R 0603 C903,C904　　　　（28） 5233237 SOFT SPONGE SPACER 18×10×4 SINGLE-FACED,HARD DV725SI（RU）SILVER[1389HD] USB BOARD 5448136 0000273 CARBON FILM RESISTOR 1/4W33O±5% SHAPED 10 L902,L903 0000296 CARBON FILM RESISTOR 1/4W15K±5% SHAPED 10 R901,R902...

Table of Contents