Yamaha-DVDS2300-dvd-sm 维修电路原理图.pdf
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1、100826P.O.Box 1, Hamamatsu, JapanI CONTENTSTO SERVICE PERSONNEL . 2PREVENTION OF ELECTRO STATIC DISCHARGE . 4LOCALE MANAGEMENT INFORMATION . 4FRONT PANELS. 5REMOTE CONTROL PANELS. 5REAR PANELS . 6SPECIFICATIONS. 7INTERNAL VIEW . 8DISASSEMBLY PROCEDURE / 分解手順 . 915OPTICAL PICKUP SELF-DIAGNOSIS AND RE
2、PLACEMENT PROCEDURE /光故障診断交換手順 . 1617SERVICE MODE AND SELF-DIAGNOSIS FUNCTION /自己診断機能 . 1824ASSEMBLING AND DISASSEMBLING THE MECHANISM UNIT /分解組立 . 2535OPTICAL PICKUP TILT ADJUSTMENT /光調整. 3639DISPLAY DATA . 4041IC DATA . 4243PIN CONNECTION DIAGRAM . 44PRINTED CIRCUIT BOARD . 4553BLOCK DIAGRAM. 5455
3、SCHEMATIC DIAGRAM . 5676PARTS LIST. 77104REMOTE CONTROL. 105SERVICE MANUALDVD AUDIO/VIDEO SACD PLAYERDVD-S2300DVD-S2300IMPORTANT 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 th
4、e 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
5、 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 doe
6、s 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 depar
7、tments 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 disc
8、harges 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
9、 apply power to the unit.RadioFans.CN 收音机爱 好者资料库DVD-S23002DVD-S2300WALLOUTLETEQUIPMENTUNDER 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 (where
10、applicable) components may also 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 WH
11、ATSOEVER!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
12、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
13、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, a
14、djustments 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 i
15、s 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 set, you will not be exposed to any laseremissions.2) The laser power
16、 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 fro
17、m 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
18、 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
19、BE ADJUSTED OR REPAIRED BY ANYONE EXCEPT PROPERLY QUALIFIEDSERVICE PERSONNEL.RadioFans.CN 收音机爱 好者资料库DVD-S23003DVD-S2300Laser Diode PropertiesType:Semiconductor laser GaAlAsWave length:658 nm (DVD)790 nm (VCD/CD)Output Power: CLASS IIa 1mW (DVD)CLASS I1mW (VCD/CD)VARO!:AVATTAESSA JA SUOJALUKITUS OHIT
20、ETTAESSA 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 wit
21、h a disc loaded inside the playerDVD-S23004DVD-S2300I 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 d
22、iode.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 grou
23、ndingPut 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 replacemen
24、t 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 su
25、pply 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. The flexible cable lines may break if an excessive force is applied to it. Use caution whe
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