Yamaha-NXSW1000-hts-sm 维修电路原理图.pdf
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1、SERVICE MANUALThis 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 b
2、een 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 r
3、equired 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 prin
4、ciple-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 andspecifi
5、cations 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 your
6、self 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 NOTICE101083SERVICE MANUALSELF-DIAGNOSIS FUNCTION /自己診断機能 .2330AMP ADJUSTMENT .31IC DA
7、TA .3240BLOCK DIAGRAMS .4143PIN CONNECTION DIAGRAM.44PRINTED CIRCUIT BOARDS .4558SCHEMATIC DIAGRAMS .5974REPLACEMENT PARTS LIST.7585REMOTE CONTROL .86 CONTENTSTO SERVICE PERSONNEL .23PREVENTION OF ELECTROSTATIC DISCHARGE .4LOCALE MANAGEMENT INFORMATION .4SYSTEM COMPOSITION / 構成.5FRONT PANELS.56REAR
8、PANELS.710REMOTE CONTROL PANEL.11SPECIFICATIONS / 参考仕様 .1214INTERNAL VIEW .15DISASSEMBLY PROCEDURES / 分解手順.1620PROTECTION INFORMATION DISPLAY /情報表示.2122 The DVX-1000 consists of the DVR-1000, NX-SW1000 and NX-P1000. When accepting a repair order from the user, it is recommended to receive DVR-1000,
9、NX-SW1000and NX-P1000 as a set for the repair work. DVX-1000、DVR-1000、NX-SW1000 NX-P1000 構成。 修理依頼受際、DVR-1000、NX-SW1000 NX-P1000 一緒預推奨。DVD RECEIVER/SUBWOOFER/SPEAKERSDVR-1000/NX-SW1000/NX-P1000DVD HOME THEATER SOUND SYSTEM DVX-1000DVX-1000 2008 YAMAHA CORPORATION. All rights reserved.This manual is c
10、opyrighted by YAMAHA and may not be copied orredistributed either in print or electronically without permission. 08.032DVX-1000DVX-1000TO SERVICE PERSONNEL1. Critical Components InformationComponents having special characteristics are marked Zand must be replaced with parts having specifications equ
11、alto 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.Meter impedance should be equivalent to 1500 ohmsshunted by 0.15F.AC LEAKAGE
12、TESTER 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
13、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
14、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 addit
15、ion, other electrical/electronic and/or plastic (whereapplicable) components may also contain traces of chemicals found by the California Health and Welfare Agency (and possiblyother entities) to cause cancer and/or birth defects or other reproductive harm.DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC
16、OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASONWHATSOEVER!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,
17、 wash your hands before handlingfood.Leakage current must not exceed 0.5mA.Be sure to test for leakage with the AC plug in bothpolarities.About Lead Free Solder / 無鉛All of the P.C.B.s installed in this unit and solder joints aresoldered using the lead free solder.Among some types of lead free solder
18、 currently available, it isrecommended to use one of the following types for the repairwork. Sn + Ag + Cu (tin + silver + copper) Sn + Cu (tin + copper) Sn + Zn + Bi (tin + zinc + bismuth)Caution:As the melting point temperature of the lead free solder isabout 30C to 40C (50F to 70F) higher than tha
19、t of the leadsolder, be sure to use a soldering iron suitable to each solder.本機搭載基板付接合部無鉛付。無鉛種類、 修理時下記無鉛使用推奨。Sn+Ag+Cu (錫 +銀 +銅)Sn+Cu (錫 +銅)Sn+Zn+Bi (錫+亜鉛 +)注意:無鉛融点温度通常鉛入比3040 程度高、合使用。3DVX-1000DPX-1200DVX-1000Laser Emitting conditions:1) When the Top Cover is removed, and the STANDBY/ON SW is turned
20、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 emitti
21、ng 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 p
22、rovided elsewhere in thismanual. Adjustment of this control can increase the laser emission level from the device.Laser Diode PropertiesType:Semiconductor laser GaAlAsWave length:650 nm (DVD)784 nm (VCD/CD)Output Power:7 mW (DVD/VCD/CD)Beam divergence:60 degreeWARNINGThe use of optical instruments w
23、ith this product will increase eye hazard.Repair handling should take place as much as possible with a disc loaded inside the player.Warning for power supplyThe primary side of the power supply carries live mains voltage when the player is connected to the mains even whenthe player is switched off !
24、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
25、.Handle the DVD mechanism with care when the unit has to be exchanged!The DVD mechanism is very sensitive for dropping or giving shocks.4DVX-1000DVX-1000 PREVENTION OF ELECTROSTATIC DISCHARGE LOCALE MANAGEMENT INFORMATIONLocale Management Information : This DVD player is designed and manufactured to
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