Yamaha-DVDS1200-dvd-sm 维修电路原理图.pdf

DVD-S1200DVD-S1200SERVICE MANUALDVD PLAYERDVD-S1200100743I CONTENTSTO SERVICE PERSONNEL . 1WARNINGS . 12PREVENTION OF ELECTRO STATIC DISCHARGE.3LOCALE MANAGEMENT INFORMATION . 3FRONT PANEL . 4REAR PANEL . 4REMOTE CONTROL TRANSMITTER PANEL . 4SPECIFICATIONS. 5DISASSEMBLING THE CASING AND CHECKING P.C.B.S. 59OPTICAL PICKUP SELF-DIAGNOSIS ANDREPLACEMENT PROCEDURE . 1011SELF-DIAGNOSIS FUNCTION AND SERVICE MODES. 1218ASSEMBLING AND DISASSEMBLINGTHE MECHANISM UNIT. 1923ADJUSTMENT . 2427BLOCK DIAGRAM. 2834INTERCONNECTION DIAGRAM . 35PRINTED CIRCUIT BOARD . 3643SCHEMATIC DIAGRAM . 4459VOLTAGE CHART. 6066PARTS LIST. 6781REMOTE CONTROL TRANSMITTER . 82IMPORTANT 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, JapanFor G, B modelsRadioFans.CN 收音机爱 好者资料库DVD-S1200DVD-S12001WALLOUTLETEQUIPMENTUNDER 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 STANDBY/ON SW is turned to the ON position, the laser component will emita beam for several seconds to detect if a disc is present. During this time (5 - 10 sec.) the laser may radiate through thelens 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.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-VIDEO PLAYER SHOULD NOT BE ADJUSTED OR REPAIRED BY ANYONE EXCEPT PROPERLY QUALIFIED SERVICEPERSONNEL.RadioFans.CN 收音机爱 好者资料库DVD-S1200DVD-S1200RQLS0233 - - - - - - - - - - VISIBLE AND INVISIBLE LASER RADIATION WHEN OPEN.AVOID DIRECT EXPOSURE TO BEAM. DANGER(FDA 21 CFR)(IEC60825-1)VISIBLE AND INVISIBLE LASER RADIATION WHEN OPEN.AVOID EXPOSURE TO BEAM. CAUTIONRAYONNEMENT LASER VISIBLE ET INVISIBLE EN CAS DOUVERTURE.EXPOSITION DANGEREUSE AU FAISCEAU.ATTENTIONSYNLIG OG USYNLIG LASERSTRLING VEDBNING. UNDG UDSTTELSE FOR STRLING.ADVARSELAVATTAESSA OLET ALTTIINA NKYV JA NKYMTNLASERSTEILYLLE.L KATSO STEESEEN.VARO!SYNLIG OCH OSYNLIG LASERSTRLNING NR DENNA DEL R PPNAD. BETRAKTA EJ STRLEN.VARNINGSYNLIG OG USYNLIG LASERSTRLING NR DEKSEL PNES.UNNG EKSPONERING FOR STRLEN.ADVARSELSICHTBARE UND UNSICHTBARE LASERSTRAHLUNG,WENN ABDECKUNGGEFFNET. NICHT DEM STRAHL AUSSETZEN.VORSICHT2Laser Diode PropertiesType:Semiconductor laser GaAlAsWave length:658 nm (DVD)790 nm (VCD/CD)Output Power:CLASS IIa1 mW (DVD)CLASS I1 mW (VCD/CD)Output 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 playerDVD-S1200DVD-S1200312425542635I 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 iron 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 for the optical pickup. Failure to do so will damage the laser diode due to thepower supply in the tester.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-S1200DVD-S12004I FRONT PANELI REMOTE CONTROL TRANSMITTER PANELI REAR PANELDVD-S1200DVD-S1200449 (17-11/16)99 (3-15/16)281 (11-1/16)Unit : mm (inch)I SPECIFICATIONSVIDEO PERFORMANCEVideo output level1 Vp-p (75 )S-Video output levelNTSC: 0.286 Vp-p (75 )PAL: 0.300 Vp-p (75 )RGB video output levelR, G, B: 0.7 Vp-p (75 )Sygnal systemPAL 625/50, PAL 525/60, NTSCAUDIO PERFORMANCEAnalog output level2 Vms (1 kHz, 0dB)Frequency responseDVD: 2 Hz 22 kHz (48 kHz sampling)2 Hz 44 kHz (96 kHz sampling)2 Hz 88 kHz (192 kHz sampling)CD:2 Hz 20 kHzSignal to Noise ratioCD: 115dBDynamic rangeDVD: 103dBCD:99 dBHarmonic distortionCD: 0.002%GENERALDimensions(W x H x D)449 x 99 x 281 mm17-11/16 x 3-15/16 x 11-1/16Weight3.5 Kg (7 lbs 12 oz.)FinishBlack color / Gold colorPower supply220 240 V, 50 HzPower consumption19 W Standby modeApprox. 4 WPACKAGE CONTENTSDVD Player, Remote Control & Batteries,AC Power cord, Owners Manual, Audio/Video cableSpecifications are subject to change without notice due toproduct improvements.5 DimensionsI DISASSEMBLING THE CASING AND CHECKING P.C.B.s1. Dissasembly Procedure*Manufactured under license from Dolby Laboratories.Dolby, Dolby Digital, Pro Logic, and the double-D symbol V aretrademarks of Dolby Laboratories. 1992-1997 Dolby Laboratories.All rights reserved.*Manufactured under license from Digital Theater Systems, Inc. USPat. No. 5,451,942 and other world-wide patents issued and pending.DTS, DTS Digital Surround, are trademarks of Digital TheaterSystems, Inc. copyright 1996 Digital Theater Systems, inc. All rightsreserved.This product incorporates copyright protection technology that is protected by method claims of certain U.S. patents and other intellectual property rightsowned by Macrovision Corporation and other rights owners. Use of this copyright protection technology must be authorized by Mcrovision Corporation,and is intended for home and other limited viewing uses only unless otherwise authorized by Macrovision Corporation. Reverse engineering ordisassembly prohibited.DVD-S1200DVD-S120062. Casing Parts and P.C.B. Locations3. Top CoverRemove the screws shown.DVD-S1200DVD-S12005. Front Panel1. Remove the connectors.72. Remove the screws.3. Remove the tabs.4. Tray1. Pull the tray out of the mechanism unit. Remove thegear and install it onto a screwdriver to make a gear jig.2. Insert the gear jig into the tray open/close hole.3. Turn the gear jig counterclockwise to open the tray.4. Remove the tray lid from the tray section.6. Mechanism Unit1. Remove the screws.2. Remove the connectors.3. Pull out the mechanism unit vertically.DVD-S1200DVD-S120087. Terminal P.C.B.1. Remove the screws.2. Remove the solders.3. Remove the connectors.8. Module P.C.B.1. Remove the screws.2. Remove the connectors.3. Squeeze each tab with plyers to pull out the moduleP.C.B. vertically.9.Front-1 P.C.B., Front-2 P.C.B., and Front-3 P.C.B.1. Remove the screws.2. Release the tabs.10. Rear panel1. Remove the screws2. Release the tabs.11. Scart P.C.B.Remove the connectors.12. Power supply P.C.B.1. Remove the screws.2. Remove the connectors.DVD-S1200DVD-S120014. Servicing Position14.1. Servicing position of the Module P.C.B.14.2. Servicing position of the Terminal P.C.B.14.3. List of the Extention CablesPart No.1TX94637026pinsPS4201 (Module P.C.B.) PP4201 (Mother P.C.B.)JGS00982AAX2782018pinsPS6202 (Module P.C.B.) PP6001 (Mother P.C.B.)JFKZ00983AAX2783010pinsPS3201 (Module P.C.B.) PP3201 (Mother P.C.B.)RFKZ00974AAX1659014pinsPS6251 (Module P.C.B.) PP1102 (Mother P.C.B.)VUC8026913. Mother P.C.B.Unscrew the screws.DVD-S1200DVD-S1200I OPTICAL PICKUP SELF-DIAGNOSIS AND REPLACEMENT PROCEDURE1. Self-diagnosisAn optical pickup self-diagnosis function and tilt adjustment check function have been included in this unit. When repairing,use the following procedure for effective Self-diagnosis and tilt adjustment. Be sure to use the self-diagnosis function beforereplacing the optical pickup when NO DISC is displayed. As a guideline, you should replace the optical pickup when thevalue of the CD laser drive current is more than 55 (70 for DVD).Note:Press the STANDBY/ON button to turn on the power. Check the value within three minutes before the unit warms up.(Otherwise, the result will be incorrect.)10DVD-S1200DVD-S1200112. Cautions to Be Used Before Replacing the Optical Pickup Unit and Spindle Motor AssemblyBefore replacing the optical pickup unit and spindle motor assembly, check the total usage hours for each of them. Thechecking method is as follows:Note: Each of these procedures should start with the unit stopped.Cautions to be taken when replacing the opticalpickupThe optical pickup may become damaged due to staticelectricity from the human body. Take proper protectionmeasures against static electricity before repairing theparts around the optical pickup. (See the page describingthe PREVENTION OF ELECTRO STATIC DISCHARGE.)1. Do not touch the areas around the laser diode andactuator.2. Do not judge the laser diode with a tester. (The testerwill damag the diode.)3. It is recommended to use a anti-static soldering ironfor soldering or desoldering on the pickup.(Recommended soldering iron) HAKKO ESDProduct4. Solder the land of the flexible cable in the opticalpickup.Note:When using a soldering iron which is not anti-static,short-circuit the terminal face of the fle