BO-DVD2_type4629-sm维修电路原理图.pdf

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1、DVD 2 Type 4629Service Manual EnglishGerman, French, Italian, Spanish, Danish, Dutch and Simplified Chinese versions are available in the Retail SystemThis Service Manual must be returned with the defective parts/back-up suitcase !RadioFans.CN 收音机爱 好者资料库CONTENTSSurvey of modules . 1.1How to service

2、. 1.2Service Mode . 2.1Fault flow chart . 3.1Adjustments . 4.2Software update . 4.9Repair tips . 4.13Final check after repair . 4.14Replacement of modules . 5.1Specification guidelines for service use . 6.1Wiring diagram . 7.1Block diagrams . 7.2Available parts . 8.1RadioFans.CN 收音机爱 好者资料库Survey of

3、modules Survey of modules 1.1051003040102149594FANPCB01 AnalogPCB02 DigitalPCB03 DisplayPCB04 Power SupplyPCB05 AV InputPCB10 HDMI PCB14 Keyboard (AVL)94 Module Harddrive (HDD)95 Module DVD DriveFanHow to serviceFront line serviceThe static-protective field service kit must always be used when DVD 2

4、 is disassembled or modules are being handled.It is not allowed to solder in the customers home. Therefore, accessible modules are mounted with plugs and connectors, and can be exchanged without the use of a solder iron.DVD 2 has been developed for simple module exchange to comply with the on-site s

5、ervice strategy. Module exchange is possible on-site, at the dealershop or in the service workshop, whatever is most convenient in each case. For on-site service a Back-up suitcase must be used. Module exchange is the recommended way to perform service, due to the fact that most of the modules are m

6、ulti-layer based, and most of the circuits are on a single main PCB. An electrical fault symptom can be removed during one visit to the customers home, if you bring a DVD 2 Back-up suitcase with you.Is it a mechanical symptom, the specific part must be brought with you separately.Service documentati

7、onService documentation for DVD2 will be a Service Manual with part nos. for the Back-up suitcase, electrical and mechanical parts, Users guides, etc. In the Back-up suitcase, an enclosed appendix with detailed description of available nuclei will be located. This could be helpful when operating in

8、service mode.Preparations before serviceFault description and error codes must be returned with the replaced parts.Use the Module Repair form or the form in the Retail Order System, Exchange Module. To help the Bang & Olufsen Module Repair department it is very important that you answer the followin

9、g questions:1 Which products are in the setup?2 Which software versions are used in these products?3 How are the products linked together?4 What happens in the actual situation? Note: In this case, the error code is generated by the Diagnostic Software andcontains 6 decimal numbers, it is not possib

10、le to clear the error code.Recommended tools for serviceService cableSoftware discDVD/CD Player Test PackWhite cotton glovesSoft lint-free cloth1.2 How to serviceHow to service 1.3WarningsESDThe internal electronics are very sensitive to static electricity, which may damage the product.When electric

11、al replacement or disassembly is necessary, use ESD-mat and tools.Static-protective field service kitA static-protective field service kit must always be used when the product is disassembled or modules are being handled.Follow the instructions in the guide and use the ESD-mat for both old and new m

12、odules.Please note:When mains voltage on the product is required, remove the connection between the product and the ESD-mat.The chassis or modules must always be connected to the static-protective field service kit or placed in an ESD-proof bag.Laser exposure The DVD 2 contains a laser system and is

13、 classified as a class 1 laser product. The DVD 2 must be opened by qualified personal only.Symbol of safety componentsWhen replacing components with this symbol, the same type has to be used, also the same values for ohm and watt. The new component is to be mounted in the same way as the replaced o

14、ne.General WarningsWear cotton gloves to avoid fingerprints on the product.The aluminium and display surface on the product is very sensitive, so handling should be done with great care to avoid damage. When transporting the DVD 2, it is recommended to use the product cover.Do not move the product o

15、r the HDD when it is operating. The HDD is very sensitive to bumps which can cause great damage.CleaningClean the DVD 2 surfaces using a lint-free cloth which you have wrung firmly in lukewarm water. Never use alcohol or other solvents to clean any parts of the DVD 2.STATIC ELECTRICITYMAY DESTROY TH

16、EPRODUCTESDCLASS 1LASER PRODUCT1.4Service ModeDiagnostic Software(DS)Service Mode in DVD 2 is a new software implemented in the PCB02, Digital and is called Diagnostic Software. The Diagnostic Software consists of independent atomic tests, called nuclei. Each nucleus forms a test to indicate possibl

17、e hardware failure.Execution of each test is done by typing individual nucleus numbers in the command promt line (a promt in the Diagnostic Software), which look like this:DS:In this case use HyperTerminal as user interface. HyperTerminal is a Windows component, please see next page for setup.Each n

18、ucleus has a unique number of four digits. This number is the input of the command line interface. XX YY _ _ Nucleus number Nucleus group numberThe Nucleus groups are defined as follows:Service Mode 2.Nucleus Group NumberNucleus Group Name0Scripts1Codec (e.g. Chrysalis, Leco)2Boot EEPROM3NVRAM4SDRAM

19、5FLASH6Video Input Processor7DVIO8Progressive Scan9Basic Engine10Display and Control Board11Analogue Board12System13Electronic Program Guide Board15HDMI16Analogue Slave Processor17Analogue Board EEPROM18Video Matrix19Audio Matrix20Front End21Hard Disk2.2 Service ModeThe Nucleus numbers are individua

20、l 2 digit numbers according to specific tests, andare listed in a detailed description of available nuclei which is an appendix to the service manual.In this description, there will be technical expressions like e.g. CHR and DVIO, which are abbreviations for Codec Host Repository and Digital Video I

21、nput Output .For an easy overview these are listed in the glossary below:GlossaryAC3 : Audio Compression format 3ACK : AcknowledgeADC : Analogue to Digital ConversionAMIX : Audio Matrix (Audio switching)ANAB : Analogue BoardAROM : Analogue Board EEPROMASP : Analogue Slave ProcessorATA : AT Attachmen

22、tATAPI : AT Attachment Packet InterfaceBE : Basic EngineBROM : BOOT EEPROMCHR : Codec Host RepositoryCRC : Cyclic Redundancy CheckDAC : Digital to Analogue ConversionDB : Digital BoardDCB : Display and Control BoardDENC : Digital (video) ENCoderDMA : Direct Memory AccessDS : Diagnostic and Service S

23、oftwareDSP : Digital Signal ProcessorDTTM : Digital Terrestrial Tuner ModuleDV : Digital VideoDVIO : Digital Video Input OutputEPGB : Electronic Program Guide BoardFRE : Front End (Tuner)HDD : Hard Disk DriveHDMI : High Definition Multimedia InterfaceIC : Integrated CircuitIDE : Integrated Drive Ele

24、ctronicsIH : Interface HandlerIIC : Inter IC CommunicationINT : InterruptLED : Light Emitting DiodeNVRAM : Non Volatile Random Access MemoryOPC : Optimal Power ControlPIO : Peripheral IO pinPSCAN : Progressive Scan RC : Remote ControlS2B : Serial to Basic EngineSYS : SystemTOC : Table Of ContentsUAR

25、T : Universal Asynchronous Receiver TransmitterUDF : Universal Disc FormatVIP : Video Input ProcessorVMIX : Video Matrix (Video switching)Service Mode 2.3Setup & ConnectionTools requiredTo enter Service Mode it is necessary to connect DVD 2 to a PC with a service cable. The required tools are:- PC w

26、ith com port (if no com port is available, use USB/COM converter part. no. 33755)- Service Cable ( part.no. 6278222 )- HyperTerminal ( Windows Component)SetupThe first-time setup is described below. This is a one time only procedure. Open PC or laptop (if no COM port is available, connect USB/COM Co

27、nverter)2. Run HyperTerminal (usually placed: Start/Programs/Accessories/Communications)3. The Connection description box appears on the screenIn the line Name type DVD2 and choose an icon for the connection. Click OK. The following appears on the screen:In the line Connect using choose the COM port

28、 (if USB/COM converter is used, choose the virtual COM port that represent the USB-converter) to be used.Click OK. 2. Service ModeThe following appears on the screen.Use the following Port Settings:Bits per second 9200Data bits 8Parity NoneStop bits Flow control NoneClick OK to continue. The followi

29、ng window should appear on the screen.Now the HyperTerminal is ready to use, but before going any further it would be wise to save the connection setup, in this way it will be easy to connect next time. This can be done in following way: Click File, Click Save As.The File Name is already suggested a

30、s DVD2, but the location in the line Save in should be changed to a known location e.g. Desktop, for easy access.Service Mode 2.5Activation. Disconnect DVD 2 from the mains2. Connect Service Cable from P03 on PCB02 to COM port3. Open HyperTerminal. Power on DVD 2 and confirm the following read out i

31、n the HyperTerminal window:Factory Diagnostics and Service SoftwareDVD Video Recorder (Sep 28 2006, 8:29:6)Version :388 Build :20060928_82Release :SG_ Buildtype :devBaseline :SGP29atl#SG_20050609_base Variant :sxcDS:UsageThe commands that can be given are the numbers of the nuclei. A command must be

32、 terminated with an character from the control PC. When typing commands, the backspace key can be used to make corrections. Apart from this, the Up and Down arrows can be used to browse through previous commands.When non-supported commands are entered, the interface returns to the command prompt lin

33、e DS:E.g.DS: 888DS: If the command (the nucleus number) is recognised, the nucleus is executed. Result and output of an activated (and terminated) nucleus will be sent back to the control service PC. Example in case the command is correct:DS: 20020000: Hardware ID = 0 x27Test OK DS:Example in case t

34、here is an error in the communication:DS: 000002: Communication with PCB0, Analog failsError DS:2.6 Service ModeERROR handlingWhen a command is terminated by the user, and an error occurs in the communication, the results are returned from a diagnostic nucleus to the control/service PC.The result lo

35、oks as follows : Error is a 6-digit decimal number padded with leading zeros if its value is less than 6 digits. The first four digits identify the generating nucleus (group and nucleus); the last two digits indicate the error number. XX YY ZZ Error Code Nucleus Number Nucleus Group NumberFor furthe

36、r specifications please refer to the enclosed appendix.Cancelling Service ModeTo cancel Service Mode, disconnect DVD 2 from mains and wait 0 sec. before rebooting the system.End User/Dealer scriptThe End User/Dealer script interface gives a diagnosis on the DVD 2. During this mode, a number of hardw

37、are tests (nuclei) are automatically executed to check if the recorder is faulty. The diagnosis is simply a “FAIL” or “PASS” message. If the message “FAIL” appears on the display, there is apparently a failure in the recorder. If the message “PASS” appears, the nuclei in this mode have been executed

38、 successfully. There can be still a failure in the recorder because the nuclei in this mode do not cover the complete functionality of the recorder.Before the product is returned to the customer this End User/Dealer script test must be executed to ensure correct functionality of the recorder. If the

39、 test fails, continue to the fault flow chart to locate the error.This test can be executed by: . Typing script in the command promt line (see section fault flow chart for further information)or by2. Pressing button S6 on back panel when connecting to the mains. The DVD Recorder is tested stand-alon

40、e: no other equipment than the DVD Recorder is needed.Cancelling End User/Dealer scriptTo cancel End User/Dealer script, disconnect DVD 2 from mains and wait 0 sec. before rebooting the system.Fault flow chart 3. Dealer testPerform built-in dealer test:- Unplug power cord- Press and hold play buton

41、(S6)- Connect to mains and release button after 2 sec.PASS in display = No errors foundFAIL xxxxxx = Error found in DVD 2If the Dealer test fails in the test sequence, it will display an error code.Locate the error code and refer to the error list in enclosed appendix.If it is not possible to locate

42、 the error code, and the DVD 2 is still faulty, continue with the fault flow chart.Fault flow chartNo start up . 3.2DVD 2 does not complete startup sequence . 3.6DVD 2 starts up but goes to standby . 3.8Fan error . 3.9HDD playback check . 3.0DVD playback check . 3.0Manual recording with TSB (Time Sh

43、ift Buffer) . 3.Manual HDD recording . 3.2No audio . 3.3No picture . 3.53.2 Fault flow chartConfirm the mains supply is connected and applied OK?Fault symptom: No start up No STBY. LED (normally red) No Display Possible causes: Mains not supplied Blown fuse F on PCB04, Power Supply Missing voltages

44、Defective PCBs Defective cablesReconnect J2 on PCB04, Power Supply Disconnect cable P0 on PCB4, Keyboard Confirm: +3.3V Stby. on PCB04, J2 pin 5 +5V Stby. on PCB04, J2 pin 3 +2V Stby. on PCB04, J2 pin OK?Replace PCB04, Power SupplyDisconnect J2 on PCB04, Power Supply Confirm: +3.3V Stby. on PCB04, J

45、2 pin 5 +5V Stby. on PCB04, J2 pin 3 +2V Stby. on PCB04, J2 pin OK?Confirm: +3.3V Stby. on PCB04, J2 pin 5 +5V Stby. on PCB04, J2 pin 3 +2V Stby. on PCB04, J2 pin OK?Replace fuse F on PCB04 and connect to mains Does fuse F on PCB04, Power Supply blow again?Fuse F on PCB04, Power Supply OK?Replace/re

46、connect mains cableReplace PCB4, KeyboardReplace PCB03, DisplayReplace PCB0, AnalogReconnect P0 on PCB4 Disconnect P00 on PCB4, Keyboard Confirm: +3.3V Stby. on PCB04, J2 pin 5 +5V Stby. on PCB04, J2 pin 3 +2V Stby. on PCB04, J2 pin OK?Replace PCB04, Power SupplyGo to next pageNoYesFault flow chart

47、3.3 From previous pageConfirm: 3.3V on PCB04, J pin , 2, 3, 4 5V on PCB04, J2 pin 9 -5V on PCB04, J pin 2 OK?Replace PCB02, Digital Refer to Adjustments when replacingReplace PCB04, Power SupplyReplace PCB0, HDMIGo to next pageNoYesDisconnect J on PCB04, Power Supply Confirm: 3.3V on PCB04, J pin ,

48、2, 3, 4 5V on PCB04, J2 pin 9 -5V on PCB04, J pin 2 OK?Reconnect J on PCB04, Power Supply Disconnect P004 on PCB02, Digital Confirm: 3.3V on PCB04, J pin , 2, 3, 4 5V on PCB04, J2 pin 9 -5V on PCB04, J pin 2 OK?3.4 Fault flow chartFrom previous pageStart HyperTerminal (Refer to Service Mode for use)

49、 Is HyperTerm promt OK?Replace PCB0, Analog HyperTerm OK?Reconnect/Replace cable W6Replace PCB02, Digital HyperTerm OK?Go to next pageNoYesConfirm: 3.3V Stby. on PCB0, P932 pin 5 5V Stby. on PCB0, P932 pin 3 2V Stby. on PCB0, P932 pin OK?Confirm: 3.3V on PCB03, P500 pin , 2, 3, 4 5V on PCB02, P500 p

50、in 9 -5V on PCB02, P500 pin 2 OK?Replace PCB4, Keyboard HyperTerm OK?Disconnect PCB0, HDMI HyperTerm OK?Replace PCB0, HDMIIs DVD 2 OK? Otherwise start at the beginning with the new PCBIs DVD 2 OK? Otherwise start at the beginning with the new PCBIs DVD 2 OK? Otherwise start at the beginning with the