Philips-BDP-2850-Service-Manual电路原理图.pdf

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1、BDP2800 e.g. MCM394/12) but which have a different B.O.M. number.Also, it is possible that same model on the market is producedwith two production centers, however their partslist is the same.In such case, no alternative B.O.M. will be created.By looking at the third digit of the serial number, one

2、can identify which B.O.M. is used for the set he is working with.If the third digit of the serial number contains the number “1” (example: KX1B033500001), then the set has been manufactured according to B.O.M. number 1. If the third digit is a “2” (example: KX2B0335000001), then the set has been pro

3、duced according to B.O.M. no. 2. This is important for ordering the correct spare parts!For the third digit, the numbers 1.9 and the characters A.Z can be used, so in total: 9 plus 26= 35 different B.O.M.s can be indicated by the third digit of the serial number.Identification: The bottom line of a

4、type plate gives a 14-digit serial number. Digits 1 and 2 refer to the production centre (e.g. LM is Arts), digit 3 refers to the B.O.M. code, digit 4 refers to the Service version change code, digits 5 and 6 refer to the production year, and digits 7 and 8 refer to production week (in example below

5、 it is 2008 week 50). The 6 last digits contain the serial number.Figure 2-1 Serial number (example)2.3.6 Module Level Repair (MLR) or Component Level Repair (CLR)If a board is defective, consult your repair procedure to decide if the board has to be exchanged or if it should be repaired on componen

6、t level.If your repair procedure says the board should be exchanged completely, do not solder on the defective board. Otherwise, it cannot be returned to the O.E.M. supplier for back charging!2.3.7 Practical Service Precautions It makes sense to avoid exposure to electrical shock.While some sources

7、are expected to have a possible dangerous impact, others of quite high potential are of limited current and are sometimes held in less regard. Always respect voltages. While some may not be dangerous in themselves, they can cause unexpected reactions that are best avoided. Before reaching into a pow

8、ered TV set, it is best to test the high voltage insulation. It is easy to do, and is a good service precaution.2.4 Abbreviation List0/6/12 SCART switch control signal on A/V board. 0 = loop through (AUX to TV), 6 = play 16 : 9 format, 12 = play 4 : 3 format2DNR Spatial (2D) Noise Reduction3DNR Temp

9、oral (3D) Noise ReductionAARA Automatic Aspect Ratio Adaptation: algorithm that adapts aspect ratio to remove horizontal black bars; keeps the original aspect ratioACI Automatic Channel Installation: algorithm that installs TV channels directly from a cable network by means of a predefined TXT pageA

10、DC Analogue to Digital ConverterAFC Automatic Frequency Control: control signal used to tune to the correct frequencyAGC Automatic Gain Control: algorithm that controls the video input of the feature boxAM Amplitude ModulationANR Automatic Noise Reduction: one of the algorithms of Auto TVAP Asia Pac

11、ificAR Aspect Ratio: 4 by 3 or 16 by 9ASF Auto Screen Fit: algorithm that adapts aspect ratio to remove horizontal black bars without discarding video informationATSC Advanced Television Systems Committee, the digital TV standard in the USAATV See Auto TVAuto TV A hardware and software control syste

12、m that measures picture content, and adapts image parameters in a dynamic wayAV External Audio VideoAVC Audio Video ControllerAVIP Audio Video Input ProcessorB/G Monochrome TV system. Sound carrier distance is 5.5 MHzBLR Board-Level RepairBTSC Broadcast Television Standard Committee. Multiplex FM st

13、ereo sound system, originating from the USA and used e.g. in LATAM and AP-NTSC countriesB-TXT Blue TeleteXTC Centre channel (audio)CEC Consumer Electronics Control bus: remote control bus on HDMI connectionsCL Constant Level: audio output to connect with an external amplifierCLR Component Level Repa

14、irCOLUMBUS COlor LUMinance Baseband Universal Sub-systemComPair Computer aided rePairCP Connected Planet / Copy ProtectionCSM Customer Service ModeCTI Color Transient Improvement: manipulates steepness of chroma transientsCVBS Composite Video Blanking and SynchronizationDAC Digital to Analogue Conve

15、rterDBE Dynamic Bass Enhancement: extra low frequency amplificationDDC See “E-DDC”Model FWM572/12220-230 50Hz 60WFWM572/12LM1A08500056441 - 5Safety Instructions, Warnings, Notes, and Abbreviation ListD/K Monochrome TV system. Sound carrier distance is 6.5 MHzDFI Dynamic Frame InsertionDFU Directions

16、 For Use: owners manualDMR Digital Media Reader: card readerDMSD Digital Multi Standard DecodingDNM Digital Natural MotionDNR Digital Noise Reduction: noise reduction feature of the setDRAM Dynamic RAMDRM Digital Rights ManagementDSP Digital Signal ProcessingDST Dealer Service Tool: special remote c

17、ontrol designed for service techniciansDTCP Digital Transmission Content Protection; A protocol for protecting digital audio/video content that is traversing a high speed serial bus, such as IEEE-1394DVB-C Digital Video Broadcast - CableDVB-T Digital Video Broadcast - TerrestrialDVD Digital Versatil

18、e DiscDVI(-d) Digital Visual Interface (d= digital only)E-DDC Enhanced Display Data Channel (VESA standard for communication channel and display). Using E-DDC, the video source can read the EDID information form the display.EDID Extended Display Identification Data (VESA standard)EEPROM Electrically

19、 Erasable and Programmable Read Only MemoryEMI Electro Magnetic InterferenceEPLD Erasable Programmable Logic DeviceEU EuropeEXT EXTernal (source), entering the set by SCART or by cinches (jacks)FBL Fast BLanking: DC signal accompanying RGB signalsFDS Full Dual Screen (same as FDW)FDW Full Dual Windo

20、w (same as FDS)FLASH FLASH memoryFM Field Memory or Frequency ModulationFPGA Field-Programmable Gate ArrayFTV Flat TeleVisionGb/s Giga bits per secondG-TXT Green TeleteXTH H_sync to the module HD High DefinitionHDD Hard Disk DriveHDCP High-bandwidth Digital Content Protection: A “key” encoded into t

21、he HDMI/DVI signal that prevents video data piracy. If a source is HDCP coded and connected via HDMI/DVI without the proper HDCP decoding, the picture is put into a “snow vision” mode or changed to a low resolution. For normal content distribution the source and the display device must be enabled fo

22、r HDCP “software key” decoding.HDMI High Definition Multimedia InterfaceHP HeadPhonednuoS.metsysVTemorhconoMIcarrier distance is 6.0 MHzI2C Inter IC busI2D Inter IC Data busI2S Inter IC Sound busIF Intermediate FrequencyInterlaced Scan mode where two fields are used to form one frame. Each field con

23、tains half the number of the total amount of lines. The fields are written in “pairs”, causing line flicker.IR Infra RedIRQ Interrupt RequestITU-656 The ITU Radio communication Sector (ITU-R) is a standards body subcommittee of the International Telecommunication Union relating to radio communicatio

24、n. ITU-656 (a.k.a. SDI), is a digitized video format used for broadcast grade video. Uncompressed digital component or digital composite signals can be used. The SDI signal is self-synchronizing, uses 8 bit or 10 bit data words, and has a maximum data rate of 270 Mbit/s, with a minimum bandwidth of

25、135 MHz.ITV Institutional TeleVision; TV sets for hotels, hospitals etc.JOP Jaguar Output ProcessorLS Last Status; The settings last chosen by the customer and read and stored in RAM or in the NVM. They are called at start-up of the set to configure it according to the customers preferencesLATAM Lat

26、in AmericaLCD Liquid Crystal DisplayLED Light Emitting DiodeL/L Monochrome TV system. Sound carrier distance is 6.5 MHz. L is Band I, L is all bands except for Band ILORE LOcal REgression approximation noise reductionLPL LG.Philips LCD (supplier)LS LoudspeakerLVDS Low Voltage Differential Signalling

27、Mbps Mega bits per secondM/N Monochrome TV system. Sound carrier distance is 4.5 MHzMIPS Microprocessor without Interlocked Pipeline-Stages; A RISC-based microprocessorMOP Matrix Output ProcessorMOSFET Metal Oxide Silicon Field Effect Transistor, switching deviceMPEG Motion Pictures Experts GroupMPI

28、F Multi Platform InterFaceMUTE MUTE LineNC Not ConnectedNICAM Near Instantaneous Compounded Audio Multiplexing. This is a digital sound system, mainly used in Europe.NTC Negative Temperature Coefficient, non-linear resistorNTSC National Television Standard Committee. Color system mainly used in Nort

29、h America and Japan. Color carrier NTSC M/N= 3.579545 MHz, NTSC 4.43= 4.433619 MHz (this is a VCR norm, it is not transmitted off-air)NVM Non-Volatile Memory: IC containing TV related data such as alignmentsO/C Open CircuitOSD On Screen DisplayOTC On screen display Teletext and Control; also called

30、Artistic (SAA5800)P50 Project 50: communication protocol between TV and peripheralsPAL Phase Alternating Line. Color system mainly used in West Europe (color carrier= 4.433619 MHz) and South America (color carrier PAL M= 1 -6Safety Instructions, Warnings, Notes, and Abbreviation List3.575612 MHz and

31、 PAL N= 3.582056 MHz)PCB Printed Circuit Board (same as “PWB”)PCM Pulse Code ModulationPDP Plasma Display PanelPFC Power Factor Corrector (or Pre-conditioner)PIP Picture In PicturePLL Phase Locked Loop. Used for e.g. FST tuning systems. The customer can give directly the desired frequencyPOR Power O

32、n Reset, signal to reset the uPProgressive Scan Scan mode where all scan lines are displayed in one frame at the same time, creating a double vertical resolution.PTC Positive Temperature Coefficient, non-linear resistorPWB Printed Wiring Board (same as “PCB”)PWM Pulse Width ModulationQRC Quasi Reson

33、ant ConverterQTNR Quality Temporal Noise ReductionQVCP Quality Video Composition ProcessorRAM Random Access MemoryRGB Red, Green, and Blue. The primary color signals for TV. By mixing levels of R, G, and B, all colors (Y/C) are reproduced.RC Remote ControlRC5 / RC6 Signal protocol from the remote co

34、ntrol receiver RESET RESET signalROM Read Only MemoryR-TXT Red TeleteXTSAM Service Alignment ModeS/C Short CircuitSCART Syndicat des Constructeurs dAppareils Radiorcepteurs et TlviseursSCL Serial Clock I2CSCL-F CLock Signal on Fast I2C busSD Standard DefinitionSDA Serial Data I2CSDA-F DAta Signal on

35、 Fast I2C busSDI Serial Digital Interface, see “ITU-656”SDRAM Synchronous DRAMSECAM SEequence Couleur Avec Mmoire. Color system mainly used in France and East Europe. Color carriers= 4.406250 MHz and 4.250000 MHzSIF Sound Intermediate FrequencySMPS Switched Mode Power SupplySoC System on ChipSOG Syn

36、c On GreenSOPS Self Oscillating Power SupplyS/PDIF Sony Philips Digital InterFaceSRAM Static RAMSRP Service Reference ProtocolSSB Small Signal BoardSTBY STand-BYSVGA 800x600 (4:3)SVHS Super Video Home SystemSW SoftwareSWAN Spatial temporal Weighted Averaging Noise reductionSXGA 1280x1024TFT Thin Fil

37、m TransistorTHD Total Harmonic DistortionTMDS Transmission Minimized Differential SignallingTXT TeleteXTTXT-DW Dual Window with TeleteXTUI User InterfaceuP MicroprocessorUXGA 1600x1200 (4:3)V V-sync to the module VCR Video Cassette RecorderVESA Video Electronics Standards AssociationVGA 640x480 (4:3

38、)VL Variable Level out: processed audio output toward external amplifierVSB Vestigial Side Band; modulation methodWYSIWYR What You See Is What You Record: record selection that follows main picture and soundWXGA 1280x768 (15:9)XTAL Quartz crystalXGA 1024x768 (4:3)Y Luminance signalY/C Luminance (Y)

39、and Chrominance (C) signalYPbPr Component video. Luminance and scaled color difference signals (B-Y and R-Y)YUV Component video1 - 7Mechanical and Dismantling Instructions Dismantling Instruction The following guidelines show how to dismantle the player. Step1: Remove 6 screws around the Top Cover,

40、and then remove the Top Cover (Figure 1). Figure 1 Step2: If it is necessary to dismantle Loader or Front Panel, the Front door should be removed first. (Figure 2) Note: Make sure to operate gently otherwise the guider would be damaged. Figure 2 2-1Please kindly note that dismantle the front door as

41、sembly carefully to avoid damage tray and the front door.Detailed information please refer to the model set.Mechanical and Dismantling InstructionsDismantling InstructionStep3: If the tray cant open in normal way, you can make it through the instruction as below (Figure 3). Note: Make sure to operat

42、e gently otherwise the guider would be damaged. Figure 3 Step4: Dismantling Front Panel, disconnect the connectors (J501, USB400), need release 2 snaps of Front Panel and 2 snaps of bottom cabinet , then gently pull the Panel out from the set. (Figure 4 - Figure 5) Figure 42-2Detailed information please refer to the model set.