Philips-CED-229-Service-Manual电路原理图.pdf
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1、Car Audio Video SystemCED229/51/5598TABLE OF CONTENTSLocation of PCBS 1-1Specifications 1-2Safety Instruction, Warning 1kHz,0dB,10K load)“e 500mV188x58x193mm1.9kg-16VSystem:Frequency response:Signal/noise ratio:Total harmonic distortion:Channel separation:Video signal for mat:Video output:Disc digit
2、al audio system20Hz-20k Hz 75dBLess than 0.3%(1KHz) 55dBNTSC/PAL/AUTO1+/0.2VScreen size:Display resolution:Active area:Contrast ratio:Brightness:3.0 inches .320x240 dots65.52(W)x36.84(H)300200cd/m(16 91)Frequency range-FMFrequency range-AM(MW)Usable sensitivity-FMUsable sensitivity-AM(MW)(S/N=20dB)F
3、requency responseStereo separationSignal/noise ratio87.5-108.0MHz(Eur)65.0-74.0MHz(OIRT)87.5-107.9MHz(Ame)522-1620KHz(Eur)530-1710MHz(Ame)8uV30uV30Hz-15KHz30db(1KHz) 55dB1. Technical Specifications, Directions for UseIndex of this chapter:1.1 Technical Specifications1.2 Directions for UseNotes: Figu
4、res can deviate due to the different set executions. Specifications are indicative (subject to change).1.1 Technical SpecificationsFor on-line product support please use the following website:http:/ is product information available, as well as getting started, user manuals, frequently asked question
5、s and software 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 numbe
6、r, 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 b
7、een 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 lin
8、e 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 exampl
9、e 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 c
10、omponent 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 s
11、ources 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 int
12、o 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 Reduction3D
13、NR 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 TX
14、T 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 A
15、sia 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 contro
16、l 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. Multiple
17、x 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 Lev
18、el 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 Analogu
19、e ConverterDBE Dynamic Bass Enhancement: extra low frequency amplificationDDC See “E-DDC”Model FWM572/12220-230 50Hz 60WFWM572/12LM1A08500056441 - 6Safety Instructions, Warnings, Notes, and Abbreviation ListD/K Monochrome TV system. Sound carrier distance is 6.5 MHzDFI Dynamic Frame InsertionDFU Dir
20、ections 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 r
21、emote 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 V
22、ersatile 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 Elect
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