Yamaha-DVDS-840-Service-Manual电路原理图.pdf

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1、DVD-S840 100850 P.O.Box 1, Hamamatsu, Japan I CONTENTS TO SERVICE PERSONNEL . 2 PREVENTION OF ELECTRO STATIC DISCHARGE.34 LOCALE MANAGEMENT INFORMATION . 4 FRONT PANEL . 4 REAR PANELS . 5 REMOTE CONTROL PANEL . 5 SPECIFICATIONS / 参考仕様 . 6 DISASSEMBLY PROCEDURES AND SERVICE POSITION / 分解手順 .713 OPTIC

2、AL PICKUP SELF-DIAGNOSIS AND REPLACEMENT PROCEDURE / 光故障診断交換手順.1417 SELF-DIAGNOSIS FUNCTION AND SERVICE MODES / 自己診断機能 .1829 ASSEMBLING AND DISASSEMBLING THE MECHANISM UNIT / 分解組立.3040 ADJUSTMENT / 調整 . 4144 ABBREVIATIONS / 略語表 . 4547 BLOCK DIAGRAM. 4853 INTERCONNECTION SCHEMATIC DIAGRAM. 54 PRINTED

3、 CIRCUIT BOARD . 5560 SCHEMATIC DIAGRAM . 6173 VOLTAGE CHART / 電圧表. 74 PARTS LIST. 7585 SERVICE MANUAL DVD PLAYER DVD-S840 IMPORTANT NOTICE This manual has been provided for the use of authorized YAMAHA Retailers and their service personnel. It has been assumed that basic service procedures inherent

4、 to the industry, and more specifically YAMAHA Products, are already known 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 personal injury, destruction of expensive compon

5、ents, 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 YAMAHA Retailer or the appointed service representative. IMPORTANT:The presentation or sale of this manual to any individual

6、 or firm does not constitute authorization, certification or recognition 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, an

7、d service departments of YAMAHA are continually striving to improve YAMAHA products. Modifications are, therefore, inevitable and specifications are subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist, please contact the distributors Service Division. W

8、ARNING:Static discharges can destroy expensive components. Discharge any static electricity your body may have accumulated 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

9、 all work before you apply power to the unit. RadioFans.CN 收音机爱 好者资料库 DVD-S840 2 DVD-S840 WALL OUTLET EQUIPMENT UNDER TEST AC LEAKAGE TESTER OR EQUIVALENT INSULATING TABLE WARNING: CHEMICAL CONTENT NOTICE! The solder used in the production of this product contains LEAD. In addition, other electrical

10、/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 COMPONE

11、NTS 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 expose eyes to solder/flux vapor! If you come in contact with solder or components located inside the enclosure of this product, wash your h

12、ands before handling food. WARNING: Laser Safety This 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 must be used during servicing of t

13、he unit. 1) When testing and/or repairing any component within the product, keep your eyes and skin more than 30 cm away from the 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 elsewher

14、e in this manual. 3) CAUTION : Use of controls, adjustments or performance of procedures other than those specified herein may result in hazardous 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

15、will emit a beam for several seconds to detect if a disc is present. During this time (5-10 sec.) the laser may radiate through the 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

16、will not be exposed to any laser emissions. 2) The laser power level can be adjusted with the VR on the pick-up PWB. However, this level has been set by the factory prior to shipping from the factory. Do not adjust this laser level control unless instruction is provided elsewhere in this manual. Adj

17、ustment of this control can increase the laser emission level from the device. I TO SERVICE PERSONNEL 1. Critical Components Information Components having special characteristics are marked s and must be replaced with parts having specifications equal to those originally installed. 2. Leakage Curren

18、t Measurement (For 120V Models Only) When service has been completed, it is imperative to verify that all exposed conductive surfaces are properly insulated from supply circuits. GMeter impedance should be equivalent to 1500 ohm shunted by 0.15F. GLeakage current must not exceed 0.5mA. GBe sure to t

19、est for leakage with the AC plug in both polarities. “CAUTION” “F1001: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 1.6A, 125V FUSE.” CAUTION F1001: REPLACE WITH SAME TYPE 1.6A, 125V FUSE. ATTENTION F1001: UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE DE 1.6A, 125V. Radi

20、oFans.CN 收音机爱 好者资料库 DVD-S840 3 DVD-S840 VARO!: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. WARNING The use of optical instruments with this product

21、will increase eye hazard. Repair handling should take place as much as possible with a disc loaded inside the player I PREVENTION OF ELECTRO STATIC DISCHARGE The laser diode in the traverse unit (optical pickup) may be damaged due to static electricity from clothes or the human body. Use caution to

22、prevent electro static damage when servicing or handling the laser diode. 1. Grounding for Electro Static Damage Prevention Some devices, such as the DVD player, use an optical pickup (laser diode) that will be damaged by static electricity in the working environment. Only attempt service after ensu

23、ring that all grounding procedures have been completed. 1. Worktable grounding Put a grounded conductive material (sheet) or iron sheet on the area where the optical pickup is placed. 2. Human body grounding Use an anti-static wrist strap to discharge the static electricity from your body. 1M Conduc

24、tive material (sheet) or iron sheet Anti-static wrist strap U model All model Laser Diode Properties Type:Semiconductor laser GaAlAs Wave length:658 nm (DVD) 790 nm (VCD/CD) Output Power: CLASS IIa 1mW (DVD) CLASS I1mW (VCD/CD) DVD-S840 4 DVD-S840 I FRONT PANEL 2. Handling of the Optical Pickup 1. T

25、o prevent damage to the optical pickup replacement parts during transportation and before installation, both ends of the laser diode are short-circuited. After installing the new part, remove the short circuit according to the correct procedure in this service manual. 2. Do not use a tester to check

26、 the laser diode in the optical pickup. The power supply in the tester will damage the laser 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

27、 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. 1 2 4 2 5 5 4 2 6 3 5 I LOCALE MANAGEMENT INFORMATION Locale Management Information : This DVD player is designed and

28、manufactured to respond to the Locale Management Information that is recorded on the DVD disc. If the Locale number described on the DVD disc does not correspond to the Locale number of this DVD player, this DVD player cannot play this disc. This product incorporates copyright protection technology

29、that is protected by method claims of certain U.S. patents and other intellectual property rights owned by Macrovision Corporation and other rights owners. Use of this copyright protection technology must be authorized by Macrovision Corporation, and is intended for home and other limited viewing us

30、es only unless otherwise authorized by Macrovision Corporation. Reverse engineering or disassembly is prohibited. DVD-S840 5 DVD-S840 U model J model I REAR PANELS I REMOTE CONTROL PANEL ZOOM SET UP ON SCREENRETURN TOP MENUMENU ENTER PAUSESTOP SKIP PLAY SLOW/ SEARCH OPEN/CLOSEPOWER CINEMA SUB TITLE

31、PROG A-B REPEAT RANDOM CANCEL V.S.S. V975640 AUDIOANGLE GROUPPAGEVIDEO OFFPOS. MEMO. DVD-S840 6 DVD-S840 G DIMENSIONS 435 (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 / 信号方式: . NTSC Operating Temperature Range / 動作温度範囲: .+5 to +35C Operating Humid

32、ity 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-DA, Video-CD formatted discs) (8) MP3/WMA Maximum Number of Tracks an

33、d Groups Recognizable / 認識可能最大数: .999 tracks and 99 groups Compatible 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 (1 system) S Video Output / S信号出力: Y Output Level: . 1 Vp-p

34、 (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, PB : blue, PR : red) Number of Connectors:. 1 syste

35、m Audio Output / 出力: Output Level:. 2 Vrms (1 kHz, 0 dB) Output Connector:. Pin jack Number of Connectors: 2 Channel: . 1 system 5.1-channel Discrete Output (5.1 Channel):.1 system Audio Performance / 音声系: (1) Frequency Response / 周波数特性: DVD (linear audio):.2 Hz22 kHz (48 kHz sampling) .2 Hz44 kHz (

36、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 dB CD audio: .98 dB (4) Total Harmonic Distortion / 全高調波歪率: CD audio: .0.0025 % Digital Audio Output / 出力: Optical Digital Output

37、: .Optical terminal Coaxial Digital Output: . Pin jack Pickup / : Wave Length: .658 nm/790 nm Laser power: . CLASS 2/CLASS 1 Power Supply / 電源電圧: U model: . AC 120 V, 60 Hz J model:.AC 100 V, 50/60 Hz Power Consumption / 消費電力: U model: .11 W J model:.11 W Standby Power Consumption / 待機時消費電力: . appro

38、x. 1.5 W Dimensions / 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 model Gold color: . J model Accessories / 付属品: Remote Control, Batteries, Audio/Video Cable, Power Cable *Specifications are subject to change witho

39、ut notice due to product improvements. U . U.S.A. modelJ . Japanese model Manufactured 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.

40、 DVD-S840 7 DVD-S840 Rear Panel MODULE P.C.B. P.C.B. Tray Mechanism Unit Top Cover FRONT 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 Panel INTERMEDIATE P.C.B. 中継P.C.B. Mechanism Unit INTERMEDIATE P.C.B. 中継P.C.B. TERMINAL P.C.B. P.C.B. MODULE P.C.B.

41、P.C.B. FRONT 2 P.C.B. 2 P.C.B. Front Panel FRONT 1 P.C.B. 1 P.C.B. POWER P.C.B. P.C.B. Top Cover IDISASSEMBLY 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

42、 Parts and P.C.B. Locations2. P.C.B.配置図 DVD-S840 8 DVD-S840 Mechanism Unit Gear for opening the tray 引出 Cut / Gear / Screwdriver / 治具 3. Top Cover Remove 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. Tray 1. Remove the gear for opening the tray from the mechanism unit 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. Tray open/close hole 開閉穴 Gear jig 治具 Tray lid DVD-S840 9 DVD-S840 2. Release the tab