Yamaha-DVDS840-dvd-sm 维修电路原理图.pdf

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1、DVD-S840100850P.O.Box 1, Hamamatsu, JapanI CONTENTSTO SERVICE PERSONNEL . 2PREVENTION OF ELECTRO STATIC DISCHARGE.34LOCALE MANAGEMENT INFORMATION . 4FRONT PANEL . 4REAR PANELS . 5REMOTE CONTROL PANEL . 5SPECIFICATIONS / 参考仕様 . 6DISASSEMBLY PROCEDURES ANDSERVICE POSITION / 分解手順 .713OPTICAL PICKUP SEL

2、F-DIAGNOSIS AND REPLACEMENTPROCEDURE / 光故障診断交換手順.1417SELF-DIAGNOSIS FUNCTION AND SERVICE MODES/ 自己診断機能 .1829ASSEMBLING AND DISASSEMBLING THE MECHANISMUNIT / 分解組立.3040ADJUSTMENT / 調整 . 4144ABBREVIATIONS / 略語表 . 4547BLOCK DIAGRAM. 4853INTERCONNECTION SCHEMATIC DIAGRAM. 54PRINTED CIRCUIT BOARD . 5560SC

3、HEMATIC DIAGRAM . 6173VOLTAGE CHART / 電圧表. 74PARTS LIST. 7585SERVICE MANUALDVD PLAYERDVD-S840IMPORTANT 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 speci

4、fically 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

5、 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 authoriza

6、tion, 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 conti

7、nually 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 expensi

8、ve 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.R

9、adioFans.CN 收音机爱 好者资料库DVD-S8402DVD-S840WALLOUTLETEQUIPMENTUNDER TESTAC LEAKAGETESTER OREQUIVALENTINSULATINGTABLEWARNING: CHEMICAL CONTENT NOTICE!The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and/or plastic (whereapplicable) components may a

10、lso contain traces of chemicals found by the California Health and Welfare Agency (andpossibly 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, un

11、protected 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

12、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

13、, 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

14、 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 willemit a beam for several seconds to detect if a disc is present. During this

15、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 set, you will not be exposed to any laseremissions.2) The laser power level can be adjusted

16、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 SERVI

17、CE 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 verif

18、ythat 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.“CAUTION”“F1001: FOR CONTINUED PROTECTION AGAINST

19、 RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 1.6A, 125V FUSE.”CAUTIONF1001: REPLACE WITH SAME TYPE 1.6A, 125V FUSE.ATTENTIONF1001: UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE DE 1.6A, 125V.RadioFans.CN 收音机爱 好者资料库DVD-S8403DVD-S840VARO!:AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALTTIINA NKYMTTMLLE L

20、ASER-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 playerI

21、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 electro static damage when servicing or handling the laser diode.1. Grounding for Electro Static Damage Preventio

22、nSome 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 i

23、ron 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 strapU modelAll modelLaser Diode PropertiesType:Semiconductor laser GaAlAsWave

24、 length:658 nm (DVD)790 nm (VCD/CD)Output Power: CLASS IIa 1mW (DVD)CLASS I1mW (VCD/CD)DVD-S8404DVD-S840I FRONT PANEL2. 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-circ

25、uited. 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 (Opti

26、cal 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

27、. Do not turn the resistor.12425542635I 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 the

28、Locale 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 Macrovision Corporationand other rights owners. Use of this copyri

29、ghtprotection technology must be authorized byMacrovision Corporation, and is intended forhome and other limited viewing uses only unlessotherwise authorized by Macrovision Corporation.Reverse engineering or disassembly is prohibited.DVD-S8405DVD-S840U modelJ modelI REAR PANELSI REMOTE CONTROL PANEL

30、ZOOMSET UPON SCREENRETURNTOP MENUMENUENTERPAUSESTOPSKIPPLAYSLOW/SEARCHOPEN/CLOSEPOWERCINEMASUB TITLEPROGA-BREPEATRANDOMCANCELV.S.S.V975640AUDIOANGLEGROUPPAGEVIDEO OFFPOS. MEMO.DVD-S8406DVD-S840G DIMENSIONS435 (17-1/8)60(2-3/8)258 (10-1/8)Unit : mm (inch)単位: mm （）I SPECIFICATIONS / 参考仕様Signal System

31、/ 信号方式: . NTSCOperating Temperature Range / 動作温度範囲: .+5 to +35COperating Humidity Range / 動作湿度範囲:. 5 to 90% RH (no condensation / 結露無)Discs Played / 再生可能 8 cm or 12 cm:(1) DVD-Audio(2) DVD-Video(3) DVD+RW/DVD+R(4) DVD-R/DVD-RW (DVD-Video compatible)(5) CD-Audio (CD-DA)(6) Video CD(7) CD-R/CD-RW (CD-

32、DA, Video-CD formatted discs)(8) MP3/WMAMaximum Number of Tracks and Groups Recognizable / 認識可能最大数:.999 tracks and 99 groupsCompatible Compression Rate / :.between 32 kbps and 320 kbps (MP3). between 48 kbps and 192 kbps (WMA)Video Output / 信号出力:Output Level:. 1 Vp-p (75 )Output Terminal: . Pin jack

33、 (1 system)S Video Output / S信号出力:Y Output Level: . 1 Vp-p (75 )C Output Level: .0.286 Vp-p (75 )Output Terminal: . S terminal (1 system)Component Video Output / 出力:Y Output Level: . 1 Vp-p (75 )PB Output Level: . 0.7 Vp-p (75 )PR Output Level: . 0.7 Vp-p (75 )Output Connector:. Pin jack(Y: green, P

34、B : blue, PR : red)Number of Connectors:. 1 systemAudio Output / 出力:Output Level:. 2 Vrms (1 kHz, 0 dB)Output Connector:. Pin jackNumber of Connectors:2 Channel: . 1 system5.1-channel Discrete Output (5.1 Channel):.1 systemAudio Performance / 音声系:(1) Frequency Response / 周波数特性:DVD (linear audio):.2

35、Hz22 kHz (48 kHz sampling).2 Hz44 kHz (96 kHz sampling)DVD-Audio: .2 Hz88 kHz (192 kHz sampling)CD audio: . 2 Hz 20 kHz(2) S/N Ratio / 信号対雑音比:CD audio: .115 dB(3) Dynamic Range / :DVD (linear audio):.102 dBCD audio: .98 dB(4) Total Harmonic Distortion / 全高調波歪率:CD audio: .0.0025 %Digital Audio Output

36、 / 出力:Optical Digital Output: .Optical terminalCoaxial Digital Output: . Pin jackPickup / :Wave Length: .658 nm/790 nmLaser power: . CLASS 2/CLASS 1Power Supply / 電源電圧:U model: . AC 120 V, 60 HzJ model:.AC 100 V, 50/60 HzPower Consumption / 消費電力:U model: .11 WJ model:.11 WStandby Power Consumption /

37、 待機時消費電力:. approx. 1.5 WDimensions / 外形寸法 (W x H x D): .435 x 60 x 258 mm.(17-1/8 x 2-3/8 x 10-1/8)Weight / 質量: . 3.3 kg (7 lbs. 4 oz.)Finish / 仕上:Black color:. U modelGold color: . J modelAccessories / 付属品:Remote Control, Batteries, Audio/Video Cable, PowerCable*Specifications are subject to change

38、 without noticedue to product improvements.U . U.S.A. modelJ . Japanese modelManufactured under license from Dolby Laboratories.“Dolby”, “Pro Logic” and the double-D symbol aretrademarks of Dolby Laboratories.“DTS” and “DTS Digital Surround” are registeredtrademarks of Digital Theater Systems, Inc.D

39、VD-S8407DVD-S840Rear PanelMODULE P.C.B.P.C.B.TrayMechanism UnitTop CoverFRONT 1 P.C.B. / FRONT 2 P.C.B.1 P.C.B.2 P.C.B.TERMINAL P.C.B. / POWER P.C.B.P.C.B.P.C.B.Front PanelINTERMEDIATE P.C.B.中継P.C.B.Mechanism UnitINTERMEDIATE P.C.B.中継P.C.B.TERMINAL P.C.B.P.C.B.MODULE P.C.B.P.C.B.FRONT 2 P.C.B.2 P.C.

40、B.Front PanelFRONT 1 P.C.B.1 P.C.B.POWER P.C.B.P.C.B.Top CoverIDISASSEMBLY PROCEDURES AND SERVICE POSITION / 分解手順 (Remove parts in the order as numbered.)Disconnect the power cable from the AC outlet.1. Disassembly Procedure（番号順部品取外。）AC電源、電源抜。1. 分解手順2. Casing Parts and P.C.B. Locations2. P.C.B.配置図DV

41、D-S8408DVD-S840Mechanism UnitGear for opening the tray引出Cut / Gear / Screwdriver / 治具3. Top CoverRemove the screws.3. 外。4. 1. 引出外、挿入、治具準備。2. 治具開閉穴挿込。3. 治具反時計方向回、。4. 部外。4. Tray1. Remove the gear for opening the tray from themechanism unit and install it onto a screwdriver tomake a gear jig.2. Insert

42、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.Tray open/close hole開閉穴Gear jig治具Tray lidDVD-S8409DVD-S8402. Release the tabs.3. Remove the connectors.5. Front Panel1. Remove the screws.5. 1. 外。2. 外。3. 外。D

43、VD-S84010DVD-S8406. Mechanism Unit1. Remove the screws.2. Remove the connectors.3. Pull out the mechanism unit vertically.7. INTERMEDIATE P.C.B.1. Remove the screws.2. Remove the solders.3. Remove the connectors.6. 1. 外。2. 外。3. 垂直引抜。7. 中継P.C.B.1. 外。2. 取除。3. 外。DVD-S84011DVD-S8409. FRONT 1 P.C.B. and

44、FRONT 2 P.C.B.1. Remove the screws (A).2. Remove the Front Angle.8. MODULE P.C.B.1. Remove the screws.2. Remove the connectors.3. Squeeze each tab with pliers to pull out the MODULEP.C.B. vertically.3. Remove the screws (B).8. P.C.B.1. 外。2. 外。3. 押込、P.C.B.垂直引抜。9. 1P.C.B.、2P.C.B.1. （A） 外。2. 外。3. （B） 外

45、。DVD-S84012DVD-S84010. Rear Panel1. Remove the screws.2. Release the tabs.11. TERMINAL and POWER P.C.B.1. Remove the connectors2. Remove the screws.3. Remove the FC1001A Solder.10. 1. 外。2. 外。11. P.C.B.P.C.B.1. 外。2. 外。2. FC1001A取除。DVD-S84013DVD-S8401TX94637026 pinsPS4201 (MODULE P.C.B.) PP4301 (TERMI

46、NAL P.C.B.)JGS00982AAX1661022 pinsPS3201 (MODULE P.C.B.) PP3201 (TERMINAL P.C.B.)JGS011612.2. Service position of the INTERMEDIATE P.C.B.12. Service Position12.1. Service position of the MODULE P.C.B.12.3. List of the Extension Cables12. 12.1. P.C.B.12.3. 延長表12.2. 中継P.C.B.DVD-S84014DVD-S840I OPTICAL

47、 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-diagnosi

48、s 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 t

49、he unit warms up.(Otherwise, the result will be incorrect.)DVD-S84015DVD-S840NO DISC表示出再生等駆動電流確認光交換交換後駆動電流確認現在値60 （DVD場合） 、 45 （CD場合） 以下本体書込現在値60 （DVD場合） 、45 （CD場合） 越場合、新光取替。 （原因）交換時静電気与光調整調整確認機能使現在値70 （DVD場合） 、55 （CD場合） 越現在値70 （DVD場合） 、55 （CD場合） 以下初期化直場合、P.C.B.。確認方法無状態 （DVD） （CD）押送信表示内容Ldd （DVD）Ldc

50、 （CD）光故障診断機能使工場出荷値 現在値書込方法押 送信確認方法無状態 （DVD） （CD）押送信光故障診断交換手順1. 故障診断本機、 光故障診断機能 調整確認機能 内蔵。修理時、次手法用効率的故障診断、調整実施。NO DISC 表示出場合光交換前 故障診断 行。CD用駆動電流現在値 55 越 場合 （DVD70） 光交換目安。注意電源入3 分以内診断。 （温正確診断。）DVD-S84016DVD-S8402.Cautions to Be Used Before Replacing the Optical Pickup Unit and Spindle Motor AssemblyBef