Yamaha-DVDC950-dvd-sm 维修电路原理图.pdf

SERVICE MANUAL100937SERVICE MANUALREPAIR NOTES.8DISASSEMBLY PROCEDURES .910BLOCK DIAGRAM.11WIRING DIAGRAM .12PRINTED CIRCUIT BOARD .1324SCHEMATIC DIAGRAM.2541EXPLODED VIEW.42MECHANICAL PARTS .43I CONTENTSTO SERVICE PERSONNEL .23PREVENTION OF ELECTROSTATIC DISCHARGE .4LOCALE MANAGEMENT INFORMATION .4FRONT PANEL .5REMOTE CONTROL PANEL.5REAR PANEL .6SPECIFICATIONS.67DIMENSIONS .7INTERNAL VIEW .8DVD-AUDIO/VIDEO SA-CD PLAYERDVD-C950DVD-C950This 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 authorized YAMAHARetailer 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, and servicedepartments of YAMAHA are continually striving to improve YAMAHA products. Modifications are, therefore, inevitable andspecifications are subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist, please contact thedistributors 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.IMPORTANT NOTICE 05.03RadioFans.CN 收音机爱 好者资料库Copyright 2005 YAMAHA CORPORATIONThis manual is copyrighted by YAMAHA and may not be copied or redistributed either in print or electronically without permission.DVD-C9502DVD-C950ITO SERVICE PERSONNEL1. Critical Components InformationComponents having special characteristics are marked Zand 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 ohmsshunted by 0.15F.GLeakage current must not exceed 0.5mA.GBe sure to test for leakage with the AC plug in bothpolarities.AC LEAKAGETESTER OREQUIVALENTEQUIPMENTUNDER TESTINSULATINGTABLEWALLOUTLETWARNING: Laser SafetyThis product contains a laser beam component. This component may emit invisible, as well as visible radiation,which may cause eye damage. To protect your eyes and skin from laser radiation, the following precautions mustbe used during servicing 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.WARNING: CHEMICAL CONTENT NOTICE!The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and/orplastic (where applicable) components may also contain traces of chemicals found by the California Health andWelfare 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 FORANY REASON WHATSOEVER!Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumesor expose eyes to solder/flux vapor!If you come in contact with solder or components located inside the enclosure of this product, wash your handsbefore handling food.Laser Emitting conditions:1) When the Top Cover is removed, and the STANDBY/ON SW is turned to the ON position, the laser component willemit a beam for several seconds to detect if a disc is present. During this time (5-10 sec.) the laser may radiate throughthe lens of 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.THE DVD AUDIO/VIDEO PLAYER SHOULD NOT BE ADJUSTED OR REPAIRED BY ANYONE EXCEPT PROPERLY QUALIFIEDSERVICE PERSONNEL.RadioFans.CN 收音机爱 好者资料库DVD-C9503DPX-1200DVD-C950Laser Diode PropertiesType:Semiconductor laser GaAlAsWave length:650 nm (DVD)780 nm (VCD/CD)Output Power:7 mW (DVD/VCD/CD)Beam divergence:60 degreeVARO!: AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALTTIINA NKYMTTMLLELASER-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 player.CLASS 1 LASER PRODUCTLASER KLASSE 1 PRODUKTLUOKAN 1 LASERLAITEKLASS 1 LASER APPARATPRODUIT LASER DE CLASSE 1CAUTIONVISIBLE AND INVISIBLE LASER RADIATION WHEN OPEN. AVOID EXPOSURE TO BEAMADVARSELSYNLIG OG USYNLIG LASERSTRLING VED BNING UNDG UDSTTELSE FOR STRLINGADVARSELSYNLIG OG USYNLIG LASERSTRLING NR DEKSEL PNES UNNG EKSPONERING FOR STRLENVARNINGSYNLIG OCH OSYNLIG LASERSTRLNING NR DENNA DEL R PPNAD BETRAKTA EJ STRLENVARO !AVATTAESSA OLET ALTTIINA NKYVLLE JA NKYMTTMLLE LASER STEILYLLE, L KATSO STEESEENVORSICHTSICHTBARE UND UNSICHTBARE LASERSTRAHLUNG WENN ABDECKUNG GEFFNET NICHT DEM STRAHL AUSSETSENDANGERVISIBLE AND INVISIBLE LASER RADIATION WHEN OPEN AVOID DIRECT EXPOSURE TO BEAMATTENTIONRAYONNEMENT LASER VISIBLE ET INVISIBLE EN CAS DOUVERTURE EXPOSITION DANGEREUSE AU FAISCEAUCLASS 1 LASER PRODUCTLASER KLASSE 1 PRODUKTLUOKAN 1 LASERLAITEKLASS 1 LASER APPARATPRODUIT LASER DE CLASSE 1Warning for power supplyThe primary side of the power supply carries live mains voltage when the player is connected to the mainseven 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.Note:The screws on the DVD mechanism 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-C9504DVD-C950I PREVENTION OF ELECTROSTATIC DISCHARGEI LOCALE MANAGEMENT INFORMATIONLocale Management Information : This DVD player is designed and manufactured to respond to the LocaleManagement Information that is recorded on a DVD disc. If the Locale number described on the DVD disc does notcorrespond to the Locale number of this DVD player, this DVD player cannot play this disc.This product incorporates copyrightprotection technology that is protected bymethod claims of certain U.S. patents andother intellectual property rights owned byMacrovision Corporation and other rightsowners. Use of this copyright protectiontechnology must be authorized byMacrovision Corporation, and is intendedfor home and other limited viewing usesonly unless otherwise authorized byMacrovision Corporation. Reverseengineering or disassembly is prohibited.qwrwttrwyetThe laser diode in the traverse unit (optical pickup) may be damaged due to static electricity from clothes or the humanbody. Use caution to prevent electrostatic damage when servicing or handling the laser diode.1. Grounding for electrostatic damage prevention1. 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.2. Handling of the optical pickup1. To prevent damage to the optical pickup replacement parts during transportation and before installation, both endsof the laser diode are short-circuited. After installing the new part, remove the short circuit according to the correctprocedure in this 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 thelaser diode.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. The flexible cable lines may break if an excessive force is applied to it. Use caution when handling the cable.3. The semi-fixed resistor for laser power adjustment should not be adjusted. Do not turn the resistor.1MConductive material(sheet) or steel sheetAnti-static wrist strapDVD-C9505DPX-1200DVD-C950I FRONT PANELM DVD-C950 (U model)G DVD-C950I REMOTE CONTROL PANELDVD-C9506DVD-C950PLAYBACK SYSTEMDVD-VideoDVD-AudioSA-CD multichannel and SA-CD stereoVideo CD and SVCDCDPICTURE CDCD-R, CD-RWDVD+R, DVD+RWDVD-R, DVD-RWVIDEO PERFORMANCEVideo (CVBS) Output1 Vpp into 75 ohmsS-Video OutputY: 1 Vpp into 75 ohmsC: 0.3 Vpp into 75 ohmsComponent Video OutputY: 1 Vpp into 75 ohmsPb/Cb Pr/Cr: 0.7 Vpp into 75 ohmsBlack Level ShiftOn/OffTV STANDARD (PAL/50Hz) (NTSC/60Hz)Number of lines625525PlaybackMultistandard(PAL/NTSC)AUDIO FORMATDigital Mpeg/Dolby Digital/Compressed DigitalDTSPCM16, 20, 24 bitsfs, 44.1, 48, 96 kHzMP3 (ISO 9660)24, 32, 56, 64, 96, 128, 256 kbpsfs 16, 22.05, 24, 32, 44.1, 48kHzWMA32192 kbps, mono, stereoFull decoding of Dolby Digital and DTS multi-channel soundAnalog Sound StereoDolby Surround compatible downmix from Dolby Digitalmulti-channel soundDolby Pro Logic II3D sound for virtual 5.1 channel sound on 2 speakersI SPECIFICATIONSI REAR PANELM DVD-C950 U modelAUDIO PERFORMANCEDA Converter24 bits, 192kHzSignal-Noise (1kHz)105 dBDynamic Range (1kHz)95 dBDVDfs 96 kHz2 Hz - 44 kHzfs 48 kHz2 Hz - 22 kHzSVCDfs 48 kHz2 Hz - 22 kHzfs 44.1 kHz2 Hz - 20 kHzCD/VCDfs 44.1 kHz2 Hz - 20 kHzDistortion and Noise (1kHz)0.0035%CONNECTIONSY OutputCinch (green)Pb/Cb OutputCinch (blue)Pr/Cr OutputCinch (red)S-Video OutputMini DIN, 4 pinsVideo OutputCinchAudio Output (L+R)CinchDigital Output1 coaxial, 1 opticalIEC60958 for CDDA / LPCMIEC61937 for MPEG1/2, DolbyDigital and DTS6 Channel Analog OutputAudio Front L/RCinch (white/red)Audio Surround L/RCinch (white/red)Audio CenterCinch (blue)Audio SubwooferCinch (black)HDMI OutputTYPE A x 1GENERALDimensions (w x h x d)435 x 75 x 425 mm(17-1/8 x 3 x 16-3/4)WeightApprox. 5.5 Kg (12 lbs 2 oz)FinishBlack ColorPOWER SUPPLYPower inletU model120V, 60HzPower usageApprox. 20WPower usage standby 1WDVD-C9507DPX-1200DVD-C950ACCESSORIESRemote Control x1Batteries x2Audio/Video Cable x1* Typical playing time for movie with 2 spoken languagesand 3 subtitle languages* Specifications subject to change without prior notice.U . USA modelManufactured under license from Dolby Laboratories. “Dolby”, “Pro Logic” and the double-D symbol are trademarks of Dolby Laboratories.“DTS” and “DTS Digital Surround” are registered trademarks of Digital Theater Systems, Inc.“DivX”, “DivX Certified”, and associated logos are trademarks of DivXNetworks, Inc and are used under license.“DCDi” is a trademark of Faroudja, a division of Genesis Microchip, Inc.HDMI, the HDMI logo and High Definition Multimedia Interface are trademarks or registered trademark of HDMI Licensing LLC.Unit : mm (inch)75(3)425 (16-3/4)435 (17-1/8)I DIMENSIONSDVD-C9508DVD-C950I REPAIR NOTES1. DVD 5-Disc Changer ModuleThe DVD 5-Disc Changer Module consists of the CMUnit and Tray Assy. The DVD 5-Disc ChangrerModule is supplied as a whole. Neither the CM Unitnor Tray Assy can be supplied independently.2. Power Supply UnitThe power supply unit has to be replaced in case offailure.3. PCB AssemblyWhen a failure has occurred in the PCB assembly, re-place each P.C.B.I INTERNAL VIEWq POWER SUPPLY UNITw RS232C P.C.B.e DVD 5-DISC CHANGER MODULEr AV (2) P.C.B.t PSCAN P.C.B.y AV (1) P.C.B.u MONO P.C.B.i BRACKET FRONTo FRONT (2) STANDBY/ON P.C.B.!0 FRONT (1) DISPLAY P.C.B.!1 FRONT (3) OPEN/CLOSE P.C.B.qewryituo!0!1DVD-C9509I DISASSEMBLY PROCEDURESSee exploded view for item numbersMountingDismountingFront (3) Open/Close Board 1200 Remove cable connections. 1101 Remove 5 screws. 252 Dismount board.Front (2) Standby/ON Board 1200 Remove cable connections. 1100 Remove 3 screws. 252 Release 2 catches. Dismount board.Front Panel 101 Remove 2 cable connections. 11051109 Remove 2 screws. 260 (Bracket Front to bottom frame) Unlock Front panel from frame byreleasing successively 4 snaps. (2 on the side and 2 on the bottom) Remove 2 screws. 300 (Fig. 1) Dismount Clamper Assy. (Fig. 1) Solder the lands of the Optical Pick Up.(Fig. 2)Top Cover 240 Remove 7 screws. 260 (4 on side and 3 rear side) Lift top cover from rear side to remove.Mono Board 1300 Open Tray. Remove 8 cable connections. 1101110211041105 1301130313041305 Remove 4 screws. 260 (Board to bottom frame) Dismount Mono Board.AV (1) Board 1500 Open Tray. Remove 11 cable connections. 1100110111021103 1109120013001310 140014011460 Remove 1 screw. 252 (Board to Rear Panel) Remove 1 screw. 260 (Board to side frame) Dismount AV (1) Board.Power Supply Unit 1000 Open Tray. Remove 2 cable connections. W101W102 Remove 2 screws. 260 (Board to bottom frame) Release 2 spacers locking. (Board to bottom frame) Dismount Power Supply Unit.AV (2) Board 1500 Open Tray. Remove 2 cable connections. 13001310 Remove 4 screws. 252 (Board to Rear Panel) Dismount AV (2) Board.Bracket Front Remove 4 screws. 252 (Bracket Front to Front Panel) Remove Bracket Front.Front (1) Display Board 1200 Remove 2 screws. 251 Dismount board.Tray DVD 5-Disc Changer ModuleAssy Remove stopper screw 300on the Tray.(See Removal of Tray Assy) Open Tray. (See HOW TO MANUALLYEJECT THE TRAY) (See HOW TO MANUALLYEJECT THE TRAY) (See HOW TO MANUALLYEJECT THE TRAY) (See HOW TO MANUALLYEJECT THE TRAY) (See HOW TO MANUALLYEJECT THE TRAY)PSCAN Board 1800 Open Tray. Remove 3 cable connections. 100013021402 Remove 1 screw 252 and 1 screw 260.(Board to Rear Panel