Philips-MCI-8080-Service-Manual电路原理图.pdf

Published by LM 1052 V PTY, PS, Text including RDS clock settingHDMI Audio supportYesEnglish1-2-CDisplay/ClockResolutionDotmatrix, 320 x 240 dots (QVGA), Color TFTSize3.5 inchesBacklightCan be turned on/ off and can be dimmedClock/ Date displayYesWallpaper/ ScreensaverYesAutomatic time setting via Internet (NTP)Yes, enabledSleep timerYesInternal (key) clickerYesOthersUPnP²DMP (Local Renderer, Local Controlpoint)/ DMSNote² Requires User-registration Rhapsody.² Capable to connect to - Windows Media Player 11/12, Winamp, TwonkyMedia;- Philips Music Center WAC3500 / WAC7500 / MCi500H;- Philips NAS SPD8020CC;- Mobile phone Nokia N85, N95,N900.Specifications and external appearance are subject to changes without notice. 1-2-D2. Safety Instructions, Warnings, Notes, and Abbreviation ListIndex of this chapter:2.1 Safety Instructions2.2 Warnings2.3 Notes2.4 Abbreviation List2.1 Safety InstructionsSafety regulations require the following during a repair:Connect the set to the Mains/AC Power via an isolation transformer (> 800 VA).Replace safety components, indicated by the symbol ,only by components identical to the original ones. Any other component substitution (other than original type) may increase risk of fire or electrical shock hazard.Safety regulations require that after a repair, the set must be returned in its original condition. Pay in particular attention to the following points: Route the wire trees correctly and fix them with the mounted cable clamps.Check the insulation of the Mains/AC Power lead for external damage. Check the strain relief of the Mains/AC Power cord for proper function.Check the electrical DC resistance between the Mains/AC Power plug and the secondary side (only for sets that have a Mains/AC Power isolated power supply): 1. Unplug the Mains/AC Power cord and connect a wire between the two pins of the Mains/AC Power plug. 2. Set the Mains/AC Power switch to the “on” position (keep the Mains/AC Power cord unplugged!). 3. Measure the resistance value between the pins of the Mains/AC Power plug and the metal shielding of the tuner or the aerial connection on the set. The reading should be between 4.5 M: and 12 M:.4. Switch “off” the set, and remove the wire between the two pins of the Mains/AC Power plug. Check the cabinet for defects, to prevent touching of any inner parts by the customer. 2.2 WarningsAll ICs and many other semiconductors are susceptible to electrostatic discharges (ESD ). Careless handling during repair can reduce life drastically. Make sure that, during repair, you are connected with the same potential as the mass of the set by a wristband with resistance. Keep components and tools also at this same potential.Be careful during measurements in the high voltage section.Never replace modules or other components while the unit is switched “on”. When you align the set, use plastic rather than metal tools. This will prevent any short circuits and the danger of a circuit becoming unstable. 2.3 Notes2.3.1 GeneralMeasure the voltages and waveforms with regard to the chassis (= tuner) ground ( ), or hot ground ( ), depending on the tested area of circuitry. The voltages and waveforms shown in the diagrams are indicative. Measure them in the Service Default Mode (see chapter 5) with a colour bar signal and stereo sound (L: 3 kHz, R: 1 kHz unless stated otherwise) and picture carrier at 475.25 MHz for PAL, or 61.25 MHz for NTSC (channel 3).Where necessary, measure the waveforms and voltages with ( ) and without ( ) aerial signal. Measure the voltages in the power supply section both in normal operation ( ) and in stand-by ( ). These values are indicated by means of the appropriate symbols.2.3.2 Schematic NotesAll resistor values are in ohms, and the value multiplier is often used to indicate the decimal point location (e.g. 2K2 indicates 2.2 k:).Resistor values with no multiplier may be indicated with either an “E” or an “R” (e.g. 220E or 220R indicates 220 :).All capacitor values are given in micro-farads (P u10-6),nano-farads (n u10-9), or pico-farads (p u10-12).Capacitor values may also use the value multiplier as the decimal point indication (e.g. 2p2 indicates 2.2 pF).An “asterisk” (*) indicates component usage varies. Refer to the diversity tables for the correct values.The correct component values are listed in the Spare Parts List. Therefore, always check this list when there is any doubt.2.3.3 BGA (Ball Grid Array) ICsIntroductionFor more information on how to handle BGA devices, visit this URL: www.atyourservice.ce.philips.com (needs subscription, not available for all regions). After login, select “Magazine”, then go to “Repair downloads”. Here you will find Information on how to deal with BGA-ICs.BGA Temperature ProfilesFor BGA-ICs, you must use the correct temperature-profile, which is coupled to the 12NC. For an overview of these profiles, visit the website www.atyourservice.ce.philips.com (needs subscription, but is not available for all regions)You will find this and more technical information within the “Magazine”, chapter “Repair downloads”.For additional questions please contact your local repair help desk.2.3.4 Lead-free SolderingDue to lead-free technology some rules have to be respected by the workshop during a repair:Use only lead-free soldering tin Philips SAC305 with order code 0622 149 00106. If lead-free solder paste is required, please contact the manufacturer of your soldering equipment. In general, use of solder paste within workshops should be avoided because paste is not easy to store and to handle.Use only adequate solder tools applicable for lead-free soldering tin. The solder tool must be able: To reach a solder-tip temperature of at least 400°C. To stabilize the adjusted temperature at the solder-tip. To exchange solder-tips for different applications.Adjust your solder tool so that a temperature of around 360°C - 380°C is reached and stabilized at the solder joint. Heating time of the solder-joint should not exceed 4 sec. Avoid temperatures above 400°C, otherwise wear-out of tips will increase drastically and flux-fluid will be destroyed. To avoid wear-out of tips, switch “off” unused equipment or reduce heat.Mix of lead-free soldering tin/parts with leaded soldering tin/parts is possible but PHILIPS recommends strongly to avoid mixed regimes. If this cannot be avoided, carefully clear the solder-joint from old tin and re-solder with new tin.1 - 3Safety Instructions, Warnings, Notes, and Abbreviation List2.3.5 Alternative BOM identificationIt should be noted that on the European Service website, “Alternative BOM” is referred to as “Design variant”.The third digit in the serial number (example: KX2B0835000001) indicates the number of the alternative B.O.M. (Bill Of Materials) that has been used for producing the specific AV set. In general, it is possible that the same AV model on the market is produced with e.g. two different types of display, coming from two different suppliers. This will then result in sets which have the same CTN (Commercial Type Number; 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 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 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 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 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 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 component 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 PrecautionsIt 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 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 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 Temporal (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 pageADC 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 PacificAR 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 system 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 stereo 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 RepairCOLUMBUS 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 ConverterDBE Dynamic Bass Enhancement: extra low frequency amplificationDDC See “E-DDC”Model FWM572/12220-230 50Hz 60WFWM572/12LM1A08500056441 - 4Safety Instructions, Warnings, Notes, and Abbreviation ListD/K Monochrome TV system. Sound carrier distance is 6.5 MHzDFI Dynamic Frame InsertionDFU Directions For Use: owner's 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 control 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 Versatile 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 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 Window (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 the 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 for 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 contains 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 communication. 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 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 customer's preferencesLATAM Latin 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 SignallingMbps Mega bits per secondM/N Monochrome TV system. Sound carrier distance is 4.5 MHzMIPS Microprocessor without Inte