Philips-MCI-8080-Service-Manual(1) 电路图 维修手册.pdf

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1、Published by LM 1052 V PTY, PS, Text including RDS clock setting HDMI Audio support Yes English 1-2-C Display/Clock Resolution Dotmatrix, 320 x 240 dots (QVGA), Color TFT Size 3.5 inches Backlight Can be turned on/ off and can be dimmed Clock/ Date display Yes Wallpaper/ Screensaver Yes Automatic ti

2、me setting via Internet (NTP) Yes, enabled Sleep timer Yes Internal (key) clicker Yes Others UPnP DMP (Local Renderer, Local Controlpoint)/ DMS Note Requires User-registration Rhapsody. Capable to connect to - Windows Media Player 11/12, Winamp, TwonkyMedia;- Philips Music Center WAC3500 / WAC7500 /

3、 MCi500H;- Philips NAS SPD8020CC;- Mobile phone Nokia N85, N95,N900. Specifi cations and external appearance are subject to changes without notice. 1-2-D 2.Safety Instructions, Warnings, Notes, and Abbreviation List Index of this chapter: 2.1 Safety Instructions 2.2 Warnings 2.3 Notes 2.4 Abbreviati

4、on List 2.1Safety Instructions Safety 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 substitut

5、ion (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 c

6、able 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

7、 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 shie

8、lding 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. 2.2Warnings All

9、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

10、 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

11、unstable. 2.3Notes 2.3.1General Measure 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)

12、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 sect

13、ion both in normal operation ( ) and in stand-by ( ). These values are indicated by means of the appropriate symbols. 2.3.2Schematic Notes All 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

14、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 (? ? ?10-6), nano-farads (n ? ?10-9), or pico-farads (p ? ?10-12). Capacitor values may also use the value multiplier as the decimal point indication (e.g.

15、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. 2.3.3BGA (Ball Grid Array) ICs Introduction For

16、 more information on how to handle BGA devices, visit this URL: (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 Profiles For BGA-ICs, you must use the corre

17、ct temperature-profile, which is coupled to the 12NC. For an overview of these profiles, visit the website (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 c

18、ontact your local repair help desk. 2.3.4Lead-free Soldering Due 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 manufact

19、urer 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 40

20、0C. 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 360C - 380C is reached and stabilized at the solder joint. Heating time of the solder-joint should not exceed 4 sec. Avoid temperat

21、ures above 400C, 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 m

22、ixed regimes. If this cannot be avoided, carefully clear the solder-joint from old tin and re-solder with new tin. 1 - 3 Safety Instructions, Warnings, Notes, and Abbreviation List 2.3.5Alternative BOM identification It should be noted that on the European Service website, “Alternative BOM” is refer

23、red 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. tw

24、o 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 produced with two production centers, howe

25、ver 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), th

26、en 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 u

27、sed, 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 refe

28、rs 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) 2.3.6Module Level Repair (MLR) or Component Level Rep

29、air (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 t

30、o the O.E.M. supplier for back charging! 2.3.7Practical 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 in less regard. Always r

31、espect 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. 2.4Abbreviation List 0/6/12SCART switc

32、h control signal on A/V board. 0 = loop through (AUX to TV), 6 = play 16 : 9 format, 12 = play 4 : 3 format 2DNRSpatial (2D) Noise Reduction 3DNRTemporal (3D) Noise Reduction AARAAutomatic Aspect Ratio Adaptation: algorithm that adapts aspect ratio to remove horizontal black bars; keeps the original

33、 aspect ratio ACIAutomatic Channel Installation: algorithm that installs TV channels directly from a cable network by means of a predefined TXT page ADCAnalogue to Digital Converter AFCAutomatic Frequency Control: control signal used to tune to the correct frequency AGCAutomatic Gain Control: algori

34、thm that controls the video input of the feature box AMAmplitude Modulation ANRAutomatic Noise Reduction: one of the algorithms of Auto TV APAsia Pacific ARAspect Ratio: 4 by 3 or 16 by 9 ASFAuto Screen Fit: algorithm that adapts aspect ratio to remove horizontal black bars without discarding video

35、information ATSCAdvanced Television Systems Committee, the digital TV standard in the USA ATVSee Auto TV Auto TVA hardware and software control system that measures picture content, and adapts image parameters in a dynamic way AVExternal Audio Video AVCAudio Video Controller AVIPAudio Video Input Pr

36、ocessor B/GMonochrome TV system. Sound carrier distance is 5.5 MHz BLRBoard-Level Repair BTSCBroadcast Television Standard Committee. Multiplex FM stereo sound system, originating from the USA and used e.g. in LATAM and AP-NTSC countries B-TXTBlue TeleteXT CCentre channel (audio) CECConsumer Electro

37、nics Control bus: remote control bus on HDMI connections CLConstant Level: audio output to connect with an external amplifier CLRComponent Level Repair COLUMBUSCOlor LUMinance Baseband Universal Sub-system ComPairComputer aided rePair CPConnected Planet / Copy Protection CSMCustomer Service Mode CTI

38、Color Transient Improvement: manipulates steepness of chroma transients CVBSComposite Video Blanking and Synchronization DACDigital to Analogue Converter DBEDynamic Bass Enhancement: extra low frequency amplification DDCSee “E-DDC” Model FWM572/12 220-230 50Hz 60W FWM572/12 LM1A0850005644 1 - 4 Safe

39、ty Instructions, Warnings, Notes, and Abbreviation List D/KMonochrome TV system. Sound carrier distance is 6.5 MHz DFIDynamic Frame Insertion DFUDirections For Use: owners manual DMRDigital Media Reader: card reader DMSDDigital Multi Standard Decoding DNMDigital Natural Motion DNRDigital Noise Reduc

40、tion: noise reduction feature of the set DRAMDynamic RAM DRMDigital Rights Management DSPDigital Signal Processing DSTDealer Service Tool: special remote control designed for service technicians DTCPDigital Transmission Content Protection; A protocol for protecting digital audio/video content that i

41、s traversing a high speed serial bus, such as IEEE-1394 DVB-CDigital Video Broadcast - Cable DVB-TDigital Video Broadcast - Terrestrial DVDDigital Versatile Disc DVI(-d)Digital Visual Interface (d= digital only) E-DDCEnhanced Display Data Channel (VESA standard for communication channel and display)

42、. Using E-DDC, the video source can read the EDID information form the display. EDIDExtended Display Identification Data (VESA standard) EEPROMElectrically Erasable and Programmable Read Only Memory EMIElectro Magnetic Interference EPLDErasable Programmable Logic Device EUEurope EXTEXTernal (source)

43、, entering the set by SCART or by cinches (jacks) FBLFast BLanking: DC signal accompanying RGB signals FDSFull Dual Screen (same as FDW) FDWFull Dual Window (same as FDS) FLASHFLASH memory FMField Memory or Frequency Modulation FPGAField-Programmable Gate Array FTVFlat TeleVision Gb/sGiga bits per s

44、econd G-TXTGreen TeleteXT HH_sync to the module HDHigh Definition HDDHard Disk Drive HDCPHigh-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 pic

45、ture 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. HDMIHigh Definition Multimedia Interface HPHeadPhone dnuoS.me t s ysVTemorhconoMI carrier distance is 6.0 MHz I2CI

46、nter IC bus I2DInter IC Data bus I2SInter IC Sound bus IFIntermediate Frequency InterlacedScan 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. IRInfra Red IRQInterrupt Request

47、 ITU-656The 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 sign

48、als 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. ITVInstitutional TeleVision; TV sets for hotels, hospitals etc. JOPJaguar Output Processor LSLast Status; The settings last chosen b

49、y 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 preferences LATAMLatin America LCDLiquid Crystal Display LEDLight Emitting Diode L/LMonochrome TV system. Sound carrier distance is 6.5 MHz. L is Band I, L is all bands except for Band I LORELOcal REgression approximation noise reduction LPLLG.Philips LCD (supplier) LSLoudspeaker LVDSLow Voltage Differential Signalling MbpsMega bits per second M/NMonochrome TV system. Sound carrier distance is 4.5 MHz MIPSMicroprocessor without Inte