Yamaha-DVDS-2500-Service-Manual电路原理图.pdf
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1、SERVICE MANUAL 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 to the industry, and more specifically YAMAHA Products, are already known and understood by the users, and have therefore no
2、t been restated. WARNING:Failure to follow appropriate service and safety procedures when servicing this product may result in personal injury, destruction of expensive components, and failure of the product to perform as specified. For these reasons, we advise all YAMAHA product owners that any ser
3、vice 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 or firm does not constitute authorization, certification or recognition of any applicable technical capabilities, or establi
4、sh 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, and service departments of YAMAHA are continually striving to improve YAMAHA products. Modifications are, therefore, inevitable
5、 and specifications are subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist, please contact the distributors Service Division. WARNING:Static discharges can destroy expensive components. Discharge any static electricity your body may have accumulated by
6、 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. IMPORTANT NOTICE 100940 SERVICE MANUAL DISASSEMBLY PROCEDURES / 分解手順 . . . . .
7、. . . . . . . . . . . . . . . . . . . . . . . . . . . .910 BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . .11 WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . .12 PRINTED CIRCUIT BOARD . . . . . . . . . . . . . . . .1321 SCHEMATIC DIAGRAM . . . . . . . . . . . . .
8、. . . . . .2249 EXPLODED VIEW . . . . . . . . . . . . . . . . . . . . . . . . . . .50 MECHANICAL PARTS . . . . . . . . . . . . . . . . . . . . . . .51 I CONTENTS TO SERVICE PERSONNEL . . . . . . . . . . . . . . . . . .24 PREVENTION OF ELECTRO STATIC DISCHARGE . . . . . .4 LOCALE MANAGEMENT INFORMATI
9、ON . . . . . . . .5 FRONT PANEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 REMOTE CONTROL PANEL . . . . . . . . . . . . . . . . . . .5 REAR PANELS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 SPECIFICATIONS / 参考仕様 . . . . . . . . . . . . . . . . . .67 REPAIR NOTES /
10、 修理上留意点 . . . . . . . . . . . . . . . .8 INTERNAL VIEW / 各部名称 . . . . . . . . . . . . . . . . . . . . .8 DVD-AUDIO/VIDEO SACD PLAYER DVD-S2500 DVD-S2500 05.01 RadioFans.CN 收音机爱 好者资料库 2 DVD-S2500 DVD-S2500 I TO SERVICE PERSONNEL 1. Critical Components Information Components having special characteris
11、tics are marked Z and must be replaced with parts having specifications equal to those originally installed. 2. Leakage Current 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 circu
12、its. GMeter impedance should be equivalent to 1500 ohms shunted by 0.15F. AC LEAKAGE TESTER OR EQUIVALENT EQUIPMENT UNDER TEST INSULATING TABLE WALL OUTLET GLeakage current must not exceed 0.5mA. GBe sure to test for leakage with the AC plug in both polarities. WARNING: Laser Safety This product con
13、tains 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 the unit. 1) When testing and/or repairing any component within th
14、e 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 elsewhere in this manual. 3) CAUTION : Use of controls, adjustments or pe
15、rformance of procedures other than those specified herein may result in hazardous radiation exposure. WARNING: CHEMICAL CONTENT NOTICE! The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and/or plastic (where applicable) components may also cont
16、ain 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 COMPONENTS IN YOUR MOUTH FOR ANY REASON WHATSOEVER! Avoid prolonged, unprotec
17、ted 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 hands before handling food. Laser Emitting conditions: 1) When the Top Co
18、ver is removed, and the STANDBY/ ON SW is turned to the ON position, the laser component 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 perio
19、d! If no disc is detected, the laser will stop emitting the beam. When a disc is loaded, you will not be exposed to any laser emissions. 警告:安全対策 本機光線放射部品搭載。 部品放射光線目損傷起。 光線目及肌保護、 本機 修理作業中下記注意厳守。 ) 時修理時、 目及肌光 30c以上離。 場合 光線見。 ) 光再調整及分解。 ) 上指定以外制御、 調整、 手順光線照射結果招恐 。 放射条件 ) 取外STANDBY/ONON 、検知510秒間、光 光線放射。
20、間、修 理。 検知、光線放射 停止。場合、 遮光線修理担当者届 。 RadioFans.CN 收音机爱 好者资料库 3 DVD-S2500 DPX-1200DVD-S2500 Laser Diode Properties Type:Semiconductor laser GaAlAs Wave length:650 nm (DVD/SA-CD) 790 nm (VCD/CD) Output Power:7 mW (DVD/SA-CD/VCD/CD) VARO!: AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALTTIINA NKYMTTMLLE L
21、ASER-STEILYLLE. L KATSO STEESEEN. VARNING! : OSYNLIG LASERSTRLNING NR DENNA DEL R PPNAD OCH SPRREN R URKOPPLAD. BETRAKTA EJ STRLEN. 半導体 GaAlAs 波長650 nm (DVD/SA-CD) 790 nm (VCD/CD) 出力7 mW (DVD/SA-CD/VCD/CD) WARNING The use of optical instruments with this product will increase eye hazard. Repair hand
22、ling should take place as much as possible with a disc loaded inside the player. CAUTIONVISIBLE AND INVISIBLE LASER RADIATION WHEN OPEN. AVOID EXPOSURE TO BEAM ADVARSELSYNLIG OG USYNLIG LASERSTRLING VED BNING UNDG UDSTTELSE FOR STRLING ADVARSELSYNLIG OG USYNLIG LASERSTRLING NR DEKSEL PNES UNNG EKSPO
23、NERING FOR STRLEN VARNINGSYNLIG OCH OSYNLIG LASERSTRLNING NR DENNA DEL R PPNAD BETRAKTA EJ STRLEN VARO!AVATT AESSA OLET ALTTIINA NKYVLLE JA NKYMTTMLLE LASER STEILYLLE. L KATSO STEESEEN 2) The laser power level can be adjusted with the VR on the pick-up PWB, however, this level has been set by the fa
24、ctory prior to shipping from the factory. Do not adjust this laser level control unless instruction is provided elsewhere in this manual. Adjustment of this control can increase the laser emission level from the device. ) 光基板上VR 調整可能、工場出荷前調整済 、VR廻。VR廻 装置光線放射上恐 。 le laser CAUTION - Visible and invisi
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