Yamaha-DVDS520-dvd-sm 维修电路原理图.pdf

DVD-S520/DV-S5450DVD-S520/DV-S5450SERVICE MANUALDVD PLAYERDVD-S520/DV-S5450100795I CONTENTSTO SERVICE PERSONNEL . 1WARNINGS . 12PREVENTION OF ELECTRO STATIC DISCHARGE.3LOCALE MANAGEMENT INFORMATION . 3FRONT PANELS. 4REMOTE CONTROL TRANSMITTER . 4REAR PANELS . 56SPECIFICATIONS. 67DISASSEMBLY PROCEDURES . 8SERVICE POSITION. 9SERVICE HINTS . 9DIAGNOSTIC SOFTWARE: SCRIPT INTERFACES. 1011INTERACTIVE TESTS . 1218TEST INSTRUCTIONS . 1821TROUBLESHOOTING . 2228TECHNICAL SPECIFICATIONS DVD MODULE. 2930LIST OF ABBREVIATIONS . 31IC DESCRIPTIONS . 3241WIRING DIAGRAM . 42BLOCK DIAGRAM. 4344PRINTED CIRCUIT BOARD . 4565SCHEMATIC DIAGRAM . 6577PARTS LIST. 7887REMOTE CONTROL TRANSMITTER . 88IMPORTANT NOTICEThis manual has been provided for the use of authorized YAMAHA Retailers and their service personnel.It has been assumed that basic service procedures inherent to the industry, and more specifically YAMAHA Products, are alreadyknown and understood by the users, and have therefore not been restated.WARNING:Failure to follow appropriate service and safety procedures when servicing this product may result in personalinjury, destruction of expensive components, and failure of the product to perform as specified. For these reasons,we advise all YAMAHA product owners that any service required should be performed by an authorizedYAMAHA Retailer or the appointed service representative.IMPORTANT:The presentation or sale of this manual to any individual or firm does not constitute authorization, certification orrecognition of any applicable technical capabilities, or establish a principle-agent relationship of any form.The data provided is believed to be accurate and applicable to the unit(s) indicated on the cover. The research, engineering, andservice departments of YAMAHA are continually striving to improve YAMAHA products. Modifications are, therefore, inevitableand specifications are subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist, pleasecontact the distributors Service Division.WARNING:Static discharges can destroy expensive components. Discharge any static electricity your body may haveaccumulated by grounding yourself to the ground buss in the unit (heavy gauge black wires connect to this buss).IMPORTANT:Turn the unit OFF during disassembly and part replacement. Recheck all work before you apply power to the unit.P.O.Box 1, Hamamatsu, JapanRadioFans.CN 收音机爱 好者资料库DVD-S520/DV-S5450DVD-S520/DV-S54501WALLOUTLETEQUIPMENTUNDER TESTAC LEAKAGETESTER OREQUIVALENTINSULATINGTABLEI WARNINGSWARNING: CHEMICAL CONTENT NOTICE!The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and /or plastic(where applicable) components may also contain traces of chemicals found by the California Health and Welfare Agency(and possibly other entities) to cause cancer and/or birth defects or other reproductive harm.DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REA-SON WHATSOEVER!Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or exposeeyes to solder/flux vapor!If you come in contact with solder or components located inside the enclosure of this product, wash your hands beforehandling food.WARNING: Laser SafetyThis product contains a laser beam component. This component may emit invisible, as well as visible radiation, which maycause eye damage. To protect your eyes and skin from laser radiation, the following precautions must be used duringservicing of the unit.1) When testing and/or repairing any component within the product, keep your eyes and skin more than 30 cm away fromthe laser pick-up unit at all times. Do not stare at the laser beam at any time.2) Do not attempt to readjust, disassemble or repair the laser pick-up, unless noted elsewhere in this manual.3) CAUTION: Use of controls, adjustments or performance of procedures other than those specified herein may result inhazardous radiation exposure.Laser Emitting conditions:1) When the Top Cover is removed and the POWER SW is turned to the ON position, the laser component will emit abeam for several seconds to detect if a disc is present. During this time (5 - 10 sec.) the laser may radiate through the lensof the laser pick-up unit. Do not attempt any servicing during this period!If no disc is detected, the laser will stop emitting the beam. When a disc is loaded, you will not be exposed to any laseremissions.2) The laser power level can be adjusted with the VR on the pick-up PWB. However, this level has been set by the factoryprior to shipping from the factory. Do not adjust this laser level control unless instruction is provided elsewhere in thismanual.Adjustment of this control can increase the laser emission level from the device.I TO SERVICE PERSONNEL1. Critical Components InformationComponents having special characteristics are marked sand must be replaced with parts having specifications equalto those originally installed.2. Leakage Current Measurement (For 120V Models Only)When service has been completed, it is imperative to verifythat all exposed conductive surfaces are properly insulatedfrom supply circuits.GMeter impedance should be equivalent to 1500 ohm shuntedby 0.15F.GLeakage current must not exceed 0.5mA.GBe sure to test for leakage with the AC plug in both polarities.THE DVD PLAYER SHOULD NOT BE ADJUSTED OR REPAIRED BY ANYONE EXCEPT PROPERLY QUALIFIED SERVICE PER-SONNEL.RadioFans.CN 收音机爱 好者资料库DVD-S520/DV-S5450DVD-S520/DV-S5450U, C modelsB, G modelsR, A, T, P modelsCAUTION - Visible and invisible laserradiation when open. Avoid exposure to beam.DANGER - Visible and invisible laser radiation when open. Avoid direct exposure to beam.CAUTION - Visible and invisible laserradiation when open. Avoid exposure to beam.2Laser Diode PropertiesType:Semiconductor laser GaAlAsWave length:650 nm (DVD)780 nm (VCD/CD)Output Power:7 mW (DVD)10 mW (VCD/CD)Beam divergence:60 degreeOutput value is determined by CFR CHAPTER1, SUBCHAPTER JVARO!: AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALTTIINA NkymTTMLLE LASER-STEILYLLE. L KATSO STEESEEN.VARNING!: OSYNLIG LASERSTRLNING NR DENNA DEL R PPNAD OCH SPRREN R URKOPPLAD.BETRAKTA EJ STRLEN.WARNINGThe use of optical instruments with this product will increase eye hazard.Repair handling should take place as much as possible with a disc loaded inside the playerWARNING LOCATION: REAR PANELCAUTION VISIBLE AND INVISIBLE LASER RADIATI ON WHEN OPEN. AVOID EXPOSURE TO BEAMADVARSEL SYNLIG OG USYNLIG LASERSTRLING VED BNING UNDG UDSTTELSE FOR STRLINGADVARSEL SYNLIG OG USYNLIG LASERSTRLING NR DEKSEL PNES UNNG EKSPONERING FOR STRLENVARNING SYNLIG OCH OSYNLIG LASERSTRLNING NR DENNA DEL R PPNAD BETRAKTA EJ STRLENVARO! AVATT AESSA OLET ALTTIINA NKYVLLE JA NKYMTTMLLE LASER STEILYLLE. L KATSO STEESEENVORSICHT SICHTBARE UND UNSICHTBARE LASERSTRAHLUNG WENN ABDECKUNG GEFFNET NICHT DEM STRAHL AUSSETSENDANGER VISIBLE AND INVISIBLE LASER RADIATI ON WHEN OPEN. AVOID DIRECT EXPOSURE TO BEAMATTENTION RAYONNEMENT LASER VISIBLE ET INVISIBLE EN CAS DOUVERTURE EXPOSITION DANGEREUSE AU FAISCEAUWarning for power supplyThe primary side of the power supply including the heatsink carries live mains voltage when the player isconnected to the mains even when the player is switched off !This primary area is not shielded so it is possible to touch copper tracks and/or components when servicing the player.Service personnel have to take precautions to prevent touching this area or components in this area .The primary side of the power supply has been indicated with a lightening stroke and a stripe-marked print on the printedwiring boardNote:The screws on the DVD mechanism (position 18-1 in on the exploded view drawing) may never be touched,removed or re-adjusted.Handle the DVD mechanism with care when the unit has to be exchanged!The DVD mechanism is very sensitive for dropping or giving shocks.DVD-S520/DV-S5450DVD-S520/DV-S5450312425542635I LOCALE MANAGEMENT INFORMATIONLocale Management Information : This DVD player is designed and manufactured to respond to the Locale ManagementInformation that is recorded on the DVD disc. If the Locale number described on the DVD disc does not correspond to theLocale number of this DVD player, this DVD player cannot play this disc.This product incorporates copyright protectiontechnology that is protected by method claims ofcertain U.S. patents and other intellectualproperty rights owned by MacrovisionCorporation and other rights owners. Use of thiscopyright protection technology must beauthorized by Macrovision Corporation, and isintended for home and other limited viewing usesonly unless otherwise authorized by MacrovisionCorporation. Reverse engineering ordisassembly is prohibited.I PREVENTION OF ELECTRO STATIC DISCHARGEThe laser diode in the traverse unit (optical pickup) may be damaged due to static electricity from clothes or the human body.Use caution to prevent electrostatic damage when servicing or handling the laser diode.1. Grounding for electrostatic damage preventionSome devices, such as the DVD player, use an optical pickup (laser diode) that will be damaged by static electricity in theworking environment. Only attempt service after ensuring that all grounding procedures have been completed.1. Worktable groundingPut a grounded conductive material (sheet) or iron sheet on the area where the optical pickup is placed.2. Human body groundingUse an anti-static wrist strap to discharge the static electricity from your body.1MConductive material(sheet) or steel sheetAnti-static wrist strip2. Handling of the optical pickup1. To prevent damage to the optical pickup replacement parts during transportation and before installation, both ends of thelaser diode are short-circuited. After installing the new part, remove the short circuit according to the correct procedure inthis service manual.2. Do not use a tester to check the laser diode in the optical pickup. The power supply in the tester will damage the laserdiode.3. Handling Precautions for the Traverse Unit (Optical Pickup)1. Handle the traverse unit (optical pickup) gently, as it is an extremely high-precision assembly.2. When replacing the optical pickup, install the flexible cable and cut its short land with wire cutters. See the optical pickupreplacement procedure in this service manual. Before replacing the traverse unit, remove the shorting pin for preventingstatic electricity damage and install the new unit. Reconnect the connector as quickly as possible.3. The flexible cable lines may break if an excessive force is applied to it. Use caution when handling the cable.4. The semi-fixed resistor for laser power adjustment should not be adjusted. Do not turn the resistor.DVD-S520/DV-S5450DVD-S520/DV-S54504I FRONT PANELSDVD-S520DV-S5450I REMOTE CONTROL TRANSMITTERDVD-S520/DV-S5450DVD-S520/DV-S54505I REAR PANELSDVD-S520 B, G modelsDVD-S520 U, C modelsDVD-S520 A modelDVD-S520 R modelDVD-S520 T modelDVD-S520 P modelDVD-S520/DV-S5450DVD-S520/DV-S54506I SPECIFICATIONSPLAYBACK SYSTEMDVD VideoVideo CD & SVCDCD (CD Recordable and CD Rewritable)DVD+RWMP3OPTICAL READOUT SYSTEMLasertypeSemiconductor AlGaAsNumerical Aperture0.60 (DVD)0.45 (VCD/CD)Wavelength650 nm (DVD)780 nm (VCD/CD)DVD DISC FORMATMediumOptical DiscDiameter12cm (8cm)Playing timeOne layer2.15 h*(12cm)Dual layer4 h*Two side4.30 h*SinglelayerTwo side8 h*Dual layerVIDEO FORMATDA Converter10 bitsSignal handlingComponentsDigital CompressionMPEG2 for DVDMPEG1 for VCDTV STANDARD(PAL/50Hz)(NTSC/60Hz)Number of lines625525PlaybackMultistandard (PAL/NTSC)DVDHorizontal Resolution720 pixels720 pixelsVertical Resolution576 lines480 linesVCDHorizontal Resolution352 pixels352 pixelsVertical Resolution288 lines240 linesDV-S5450 U modelDV-S5450 A modelVIDEO PERFORMANCEVideo output1 Vpp into 75 ohmS-Video outputY: 1 Vpp into 75 ohmC: 0.3 Vpp into 75 ohmComponent video outputY: 1 Vpp into 75 ohm (U, C, A, R, T, P)PB/CB PR/CR:0.7Vpp into 75 ohm (U, C, A, R, T, P)RGB (SCART) output0.7 Vpp into 75 ohm (B, G)Black Level ShiftOn/OffVideo ShiftLeft/RightAUDIO FORMATDigitalMPEGCompressed DigitalDTS/Dolby DigitalPCM16, 20, 24 bits fs, 44.1, 48, 96 kHzAnalog Sound StereoDolby Pro Logic downmix from Dolby Digital multi-channel sound3D Sound (TruSurround) for virtual 5.1 channel sound on 2 speakersAUDIO PERFORMANCEDA Conver ter24 bitsDVDfs 96 kHz2 Hz 44 kHzfs 48 kHz2 Hz 22 kHzVideo CDfs 44.1 kHz2 Hz 20 kHzCDfs 44.1 kHz2 Hz 20 kHzSignal-Noise (1kHz)95 dBDynamic Range (1kHz)95 dBHarmonic Distortion and Noise (1kHz)0.0035 %MPEG MP3MPEG Audio L3CONNECTIONSY OutputCinch (green) (U, C, A, R, T, P)PB/CB OutputCinch (blue) (U, C, A, R, T, P)PR/CR OutputCinch (red) (U, C, A, R, T, P)SCARTEuroconnector (B, G)S-Video OutputMini DIN, 4 pinsVideo OutputCinch (yellow)Audio L+R outputCinch (white/red)Subwoofer outputCinch (black)Digital Output1 coaxial, 1 opticalIEC958 for CDDA / LPCMIEC1937 for MPEG1/2, Dolby Digital and DTSDVD-S520/DV-S5450DVD-S520/DV-S54507TruSurround and the SRS symbol are trademarks ofSRS Labs., Inc. TruSurround technology isincorporated under license from SRS Labs., Inc.Manufactured under license from Dolby Laboratories.“Dolby” and the double-D symbol are trademarks ofDolby Laboratories.”DTS” and ”DTS Digital Surround” are trademarks ofDigital Theater Systems, Inc.GENERALDimensions(w x h x d) 435 x 91 x 314 mm(17-1/8 x 3-5/8 x 12-9/16)WeightApprox. 3.3 Kg (7 lbs. 4.5 oz.)FinishDVD-S520Black color (U, C, A, B, G, P)Gold color (R, G, T)Titan color (G, B)DV-S5450Black color (U, A)Silver color (U)Power supply120 V, 60 Hz (U, C)230 V, 50 Hz (B, G)240 V, 50 Hz (A)110240 V, 50/60 Hz (R)220 V, 50 Hz (T)Power consumption20 WStandby power con-5 Wsumption (reference data)PACKAGE CONTENTSDVD-Video Player, Remote Control & Batteries,Owners Manual, Audio/Video cable (U, C, A, R, T),Audio cable (B, G), Video cable (B, G)GENERAL FUNCTIONALITYStop / Play / PauseFast Forward / BackwardTime SearchStep Forward / BackwardSlow MotionTitle / Chapter / Track SelectSkip Next / PreviousRepeat (Chapter / Title / All) or (Track / All)A-B RepeatShuffleScanNew enhanced user graphical interfaceZoom (xl.33, x2. x4) with picture enhancementSmart Picture for convenient personal colour settingNTSC/PAL ConversionScreen Saver (Dim 75% after 15 min.)3D Sound (TruSurround)Audio and video bit rate indicatorDVD FUNCTIONALITYMulti-angle SelectionAudio Selection (1 out of maximum 8 languages)Subtitles Selection (1 out of maximum 32 languages)Aspect Ratio conversion (16:9, 4:3 Letterbox, 4:3 Pan Scan)Parental Control and Child LockDisc Menu support (Title Menu and Access Control)Resume (5 discs) after stop / standbyProgramming Titles/chapters with Favourite Track SelectionVIDEO CD FUNCTIONALITYPlayback Control for VCD 2.0 discsChild LockResume (5 discs) after stop / standbyProgramming Tracks with Favourite Track SelectionAUDIO CD FUNCTIONALITYTime Display (Total / Track)Full audio functionality with remote controlProgramm