Yamaha-DVDS-840-Service-Manual电路原理图.pdf
《Yamaha-DVDS-840-Service-Manual电路原理图.pdf》由会员分享,可在线阅读,更多相关《Yamaha-DVDS-840-Service-Manual电路原理图.pdf(86页珍藏版)》请在收音机爱好者资料库上搜索。
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
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- Yamaha DVDS 840 Service Manual 电路 原理图