Philips-MCD-900-Service-Manual电路原理图.pdf

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1、MCD900/12/93Copyright 2010 Philips Consumer Electronics B.V. Eindhoven, The Netherlands.All rights reserved. No part of this publication may be reproduced, stored ina retrieval system or transmitted, in any form or by any means, electronic,mechanical, photocopying, or otherwise without the prior per

2、mission of Philips.Version 1.3TABLE OF CONTENTSChapterTechnical Specifications .Safety Instructions .Location of PCB Boards .Version Variation .Measurement Setup .Setting procedure e.g. MCM394/12) but which have a different B.O.M. number.Also, it is possible that same model on the market is produced

3、with 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 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

4、” (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 produced according to B.O.M. no. 2. This is important for ordering the correct spare parts!For the third digit, the numbers 1.9 an

5、d 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 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 t

6、he 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 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 (

7、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 component level.If your repair procedure says the board should be exchanged completely, do not solder on the defective board. Otherwise

8、, 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 are expected to have a possible dangerous impact, others of quite high potential are of limited current and are sometimes held

9、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 powered TV set, it is best to test the high voltage insulation. It is easy to do, and is a good service precaution.2.4 Abbreviatio

10、n 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 Temporal (3D) Noise ReductionAARA Automatic Aspect Ratio Adaptation: algorithm that adapts aspect ratio to remove horizontal black

11、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 pageADC Analogue to Digital ConverterAFC Automatic Frequency Control: control signal used to tune to the correct frequencyAGC Automa

12、tic 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 PacificAR Aspect Ratio: 4 by 3 or 16 by 9ASF Auto Screen Fit: algorithm that adapts aspect ratio to remove horizontal black bars w

13、ithout discarding video informationATSC Advanced Television Systems Committee, the digital TV standard in the USAATV See Auto TVAuto TV A hardware and software control system that measures picture content, and adapts image parameters in a dynamic wayAV External Audio VideoAVC Audio Video ControllerA

14、VIP Audio Video Input ProcessorB/G Monochrome TV system. Sound carrier distance is 5.5 MHzBLR Board-Level RepairBTSC Broadcast Television Standard Committee. Multiplex FM stereo sound system, originating from the USA and used e.g. in LATAM and AP-NTSC countriesB-TXT Blue TeleteXTC Centre channel (au

15、dio)CEC Consumer Electronics Control bus: remote control bus on HDMI connectionsCL Constant Level: audio output to connect with an external amplifierCLR Component Level RepairCOLUMBUS COlor LUMinance Baseband Universal Sub-systemComPair Computer aided rePairCP Connected Planet / Copy ProtectionCSM C

16、ustomer Service ModeCTI Color Transient Improvement: manipulates steepness of chroma transientsCVBS Composite Video Blanking and SynchronizationDAC Digital to Analogue ConverterDBE Dynamic Bass Enhancement: extra low frequency amplificationDDC See “E-DDC”Model FWM572/12220-230 50Hz 60WFWM572/12LM1A0

17、8500056441 - 4Safety Instructions, Warnings, Notes, and Abbreviation ListD/K Monochrome TV system. Sound carrier distance is 6.5 MHzDFI Dynamic Frame InsertionDFU Directions For Use: owners manualDMR Digital Media Reader: card readerDMSD Digital Multi Standard DecodingDNM Digital Natural MotionDNR D

18、igital Noise Reduction: noise reduction feature of the setDRAM Dynamic RAMDRM Digital Rights ManagementDSP Digital Signal ProcessingDST Dealer Service Tool: special remote control designed for service techniciansDTCP Digital Transmission Content Protection; A protocol for protecting digital audio/vi

19、deo content that is traversing a high speed serial bus, such as IEEE-1394DVB-C Digital Video Broadcast - CableDVB-T Digital Video Broadcast - TerrestrialDVD Digital Versatile DiscDVI(-d) Digital Visual Interface (d= digital only)E-DDC Enhanced Display Data Channel (VESA standard for communication ch

20、annel 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 Erasable and Programmable Read Only MemoryEMI Electro Magnetic InterferenceEPLD Erasable Programmable Logic DeviceEU EuropeEXT

21、 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 Window (same as FDS)FLASH FLASH memoryFM Field Memory or Frequency ModulationFPGA Field-Programmable Gate ArrayFTV Flat TeleVisionGb

22、/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 the HDMI/DVI signal that prevents video data piracy. If a source is HDCP coded and connected via HDMI/DVI without the proper HDC

23、P 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 for HDCP “software key” decoding.HDMI High Definition Multimedia InterfaceHP HeadPhonednuoS.metsysVTemorhconoMIcarrier distance i

24、s 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 contains half the number of the total amount of lines. The fields are written in “pairs”, causing line flicker.IR Infra RedIRQ Int

25、errupt RequestITU-656 The ITU Radio communication Sector (ITU-R) is a standards body subcommittee of the International Telecommunication Union relating to radio communication. ITU-656 (a.k.a. SDI), is a digitized video format used for broadcast grade video. Uncompressed digital component or digital

26、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 135 MHz.ITV Institutional TeleVision; TV sets for hotels, hospitals etc.JOP Jaguar Output ProcessorLS Last Status; The settings

27、 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 Latin AmericaLCD Liquid Crystal DisplayLED Light Emitting DiodeL/L Monochrome TV system. Sound carrier distance is 6.5 MHz. L is B

28、and I, L is all bands except for Band ILORE LOcal REgression approximation noise reductionLPL LG.Philips LCD (supplier)LS LoudspeakerLVDS Low Voltage Differential SignallingMbps Mega bits per secondM/N Monochrome TV system. Sound carrier distance is 4.5 MHzMIPS Microprocessor without Interlocked Pip

29、eline-Stages; A RISC-based microprocessorMOP Matrix Output ProcessorMOSFET Metal Oxide Silicon Field Effect Transistor, switching deviceMPEG Motion Pictures Experts GroupMPIF Multi Platform InterFaceMUTE MUTE LineNC Not ConnectedNICAM Near Instantaneous Compounded Audio Multiplexing. This is a digit

30、al sound system, mainly used in Europe.NTC Negative Temperature Coefficient, non-linear resistorNTSC National Television Standard Committee. Color system mainly used in North 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 o

31、ff-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 Artistic (SAA5800)P50 Project 50: communication protocol between TV and peripheralsPAL Phase Alternating Line. Color system mai

32、nly used in West Europe (color carrier= 4.433619 MHz) and South America (color carrier PAL M= 1 - 5Safety Instructions, Warnings, Notes, and Abbreviation List3.575612 MHz and PAL N= 3.582056 MHz)PCB Printed Circuit Board (same as “PWB”)PCM Pulse Code ModulationPDP Plasma Display PanelPFC Power Facto

33、r 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 On Reset, signal to reset the uPProgressive Scan Scan mode where all scan lines are displayed in one frame at the same time, cr

34、eating a double vertical resolution.PTC Positive Temperature Coefficient, non-linear resistorPWB Printed Wiring Board (same as “PCB”)PWM Pulse Width ModulationQRC Quasi Resonant ConverterQTNR Quality Temporal Noise ReductionQVCP Quality Video Composition ProcessorRAM Random Access MemoryRGB Red, Gre

35、en, 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 control receiver RESET RESET signalROM Read Only MemoryR-TXT Red TeleteXTSAM Service Alignment ModeS/C Short CircuitSCART Syndic

36、at 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 Fast I2C busSDI Serial Digital Interface, see “ITU-656”SDRAM Synchronous DRAMSECAM SEequence Couleur Avec Mmoire. Color syste

37、m 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 Sync On GreenSOPS Self Oscillating Power SupplyS/PDIF Sony Philips Digital InterFaceSRAM Static RAMSRP Service Reference Protocol

38、SSB Small Signal BoardSTBY STand-BYSVGA 800x600 (4:3)SVHS Super Video Home SystemSW SoftwareSWAN Spatial temporal Weighted Averaging Noise reductionSXGA 1280x1024TFT Thin Film TransistorTHD Total Harmonic DistortionTMDS Transmission Minimized Differential SignallingTXT TeleteXTTXT-DW Dual Window wit

39、h TeleteXTUI User InterfaceuP MicroprocessorUXGA 1600x1200 (4:3)V V-sync to the module VCR Video Cassette RecorderVESA Video Electronics Standards AssociationVGA 640x480 (4:3)VL Variable Level out: processed audio output toward external amplifierVSB Vestigial Side Band; modulation methodWYSIWYR What

40、 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) and Chrominance (C) signalYPbPr Component video. Luminance and scaled color difference signals (B-Y and R-Y)YUV Component vide

41、o1 - 6DVD SET LOCATION OF PCB BOARDS2-1NET SET LOCATION OF PCB BOARDS2 - 2VERSION VARIATION:SERVICE SCENARIO MATRIX:Output Power - 100WVoltage (220V240V)FeaturesType/VersionMCD900/12xxType/VersionBoard in used/12DVD Main BoardNET Main BoardAMPBoardKey BoardIR BoardSpeaker Jack PCBAux&Earphone BoardP

42、ower BoardMLRMLRMLRMLRRLM MLRMLRMLRMLRMCD900OP/CL PCB/93xx/93MLR/CLRCLRCLRCLRCLRCLRCLRMLR/CLRCLR1) MLR=Module Level Repair2) CLR=Component Level RepairRemark:3) Due to Pos. No. U504 or U505 IC are BGA IC, if both is defective, Net Main Boardshould be repaired/replaced on Module Level.Measurement SetupRecorderCDTuner AM (MW,LW)Tuner FM2-32-4