Yamaha-AS300-int-sm维修电路原理图.pdf

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1、A-S500/A-S300 1 0 11 8 8 SERVICE MANUAL 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 to the industry, and more specifi cally YAMAHA Products, are already known and und

2、erstood 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 components, and failure of the product to perform as specifi ed. For these reasons, we

3、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 or fi rm does not constitute authorization, certifi cation or recognition of a

4、ny 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, and service departments of YAMAHA are continually striving to improve YAMAHA pr

5、oducts. Modifications are, therefore, inevitable and specifi cations are subject to change without notice or obligation to retrofi t. Should any discrepancy appear to exist, please contact the distributors Service Division. WARNING: Static discharges can destroy expensive components. Discharge any s

6、tatic 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 all work before you apply power to the unit. CONTENTS TO SERVICE PERSONN

7、EL .2 IMPEDANCE SELECTOR .3 FRONT PANELS .3 REAR PANELS .48 REMOTE CONTROL PANEL .9 SPECIFICATIONS / 参考仕様 .910 INTERNAL VIEW .11 SERVICE PRECAUTIONS / 時注意事項 .11 DISASSEMBLY PROCEDURES / 分解手順 .1215 UPDATING FIRMWARE / 書込 .1620 SELF-DIAGNOSTIC FUNCTION / （自己診断機能） .2127 AMP ADJUSTMENT / 部調整 .2829 IC DA

8、TA .3032 PIN CONNECTION DIAGRAMS .3334 BLOCK DIAGRAM .35 PRINTED CIRCUIT BOARDS .3652 SCHEMATIC DIAGRAMS .5361 REPLACEMENT PARTS LIST .6379 REMOTE CONTROL .80 INTEGRATED AMPLIFIER 10.09 P.O.Box 1, Hamamatsu, Japan Copyright 2010 All rights reserved. This manual is copyrighted by YAMAHA and may not b

9、e copied or redistributed either in print or electronically without permission. A-S500/A-S300 RadioFans.CN 收音机爱 好者资料库 2 A-S500/A-S300 A-S500/A-S300 1. Critical Components Information Components having special characteristics are marked and must be replaced with parts having specifications equal to t

10、hose 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 circuits. Meter impedance should be equivalent to 1500 ohms shunted by 0.15 F. TO SERVI

11、CE PERSONNEL Leakage current must not exceed 0.5mA. Be sure to test for leakage with the AC plug in both polari- ties. WALL OUTLET EQUIPMENT UNDER TEST AC LEAKAGE TESTER OR EQUIVALENT INSULATING TABLE For U model “CAUTION” “F1: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TY

12、PE 8A (A-S500) / 6A (A-S300), 125V FUSE.” For C model CAUTION F1: REPLACE WITH SAME TYPE 8A (A-S500) / 6A (A-S300), 125V FUSE. ATTENTION F1: UTILISER UN FUSIBLE DE RECHANGE DE MME TYPE DE 8A (A-S500) / 6A (A-S300), 125V. 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

13、+ 亜鉛 + ） 注意： 無鉛融点温度通常鉛入比 30 40程度高、 合 使用。 All of the P.C.B.s installed in this unit and solder joints are soldered using the lead free solder. Among some types of lead free solder currently available, it is recommended to use one of the following types for the repair work. Sn + Ag + Cu (tin + silver

14、+ copper) Sn + Cu (tin + copper) Sn + Zn + Bi (tin + zinc + bismuth) Caution: As the melting point temperature of the lead free solder is about 30C to 40C (50F to 70F) higher than that of the lead solder, be sure to use a soldering iron suitable to each solder. About lead free solder / 無鉛 This produ

15、ct contains chemicals known to the State of California to cause cancer, 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, unprotected contact between solder and your skin! When solde

16、ring, 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. WARNING: CHEMICAL CONTENT NOTICE! RadioFans.CN 收音机爱 好者资料库 3 A-S500/A-S300 A-S500/A-S300 IMPEDANCE

17、 SELECTOR A-S500 (U, C, R, T, A, B, G, L models) A-S300 (R, T, A, B, G, L, J models) FRONT PANELS WARNING: Do not change the setting of the IMPEDANCE SELECTOR switch when the unit power is switched on, as doing so may damage the unit. IMPEDANCE SELECTOR A-S500 A-S300 4 A-S500/A-S300 A-S500/A-S300 A-

18、S500 (U, C models) REAR PANELS A-S500 (R model) A-S500 (T model) A-S500 5 A-S500/A-S300 A-S500/A-S300 A-S500 (A model) A-S500 (B model) A-S500 (G model) A-S500 6 A-S500/A-S300 A-S500/A-S300 A-S500 (L model) A-S300 (R model) A-S300 (T model) A-S500 A-S300 7 A-S500/A-S300 A-S500/A-S300 A-S300 (A model

19、) A-S300 (B model) A-S300 (G model) A-S300 8 A-S500/A-S300 A-S500/A-S300 A-S300 (J model) A-S300 (L model) A-S300 9 A-S500/A-S300 A-S500/A-S300 REMOTE CONTROL PANEL RAS5 SPECIFICATIONS / 参考仕様 Audio Section / 部 Minimum RMS Output Power (Power Amp. Section) / 定格出力（部） (8 ohms, 20 Hz to 20 kHz, 0.019 %

20、THD) A-S500 .85 W + 85 W A-S300 .60 W + 60 W (6 ohms, 20 Hz to 20 kHz, 0.038 % THD) A-S500 (U, C, R, T, A, B, G models) .100 W + 100 W A-S300 (U, C, R, T, A, B, G, J models) .70 W + 70 W Dynamic Power Per Channel / (IHF) (8/6/4/2 ohms) A-S500 .130/150/185/220 W A-S300 .100/120/140/150 W MAX Power Pe

21、r Channel B, G models (1 kHz, 0.7 % THD, 4 ohms) A-S500 .120 W A-S300 .95 W IEC Power B, G models (1 kHz, 0.019 % THD, 8 ohms) A-S500 .100 W A-S300 .75 W Power Band Width / A-S500 (0.06 % THD, 42.5 W, 8 ohms) .10 Hz to 50 kHz A-S300 (0.06 % THD, 30 W, 8 ohms) .10 Hz to 50 kHz Damping Factor / (SPEAK

22、ER-A) 1 kHz, 8 ohms . 240 or more Maximum Effective Output Power / 実用最大出力 (JEITA) (1 kHz, 10 % THD) A-S500 R, T, L models (8 ohms) .130 W R, T models (6 ohms) .150 W A-S300 R, T, L, J models (8 ohms) .100 W R, T, J models (6 ohms) .110 W Input Sensitivity/Input Impedance / 入力感度入力 PHONO (MM) .3.0 mV

23、/ 47 k-ohms CD, etc. .200 mV / 47 k-ohms Maximum Input Signal / 最大許容入力 (1 kHz) PHONO (MM) (0.003 % THD) .60 mV or more CD, etc. (0.5 % THD) .2.2 V or more Output Level/Output Impedance / 出力電圧出力 REC OUT .200 mV / 1.0 k-ohms or less Headphone Jack Rated Output/Impedance / 出力出力 CD, etc. (Input, 1 kHz,

24、200 mV, 8 ohms) A-S500 .430 mV / 470 ohms A-S300 .360 mV / 470 ohms Frequency Response / 周波数特性 CD, etc. (20 Hz to 20 kHz) .0 0.5 dB CD, etc. Pure DIRECT ON (10 Hz to 100 kHz) .0 1.0 dB RIAA Equalization Deviation / RIAA 偏差 PHONO (MM) .0.5 dB Total Harmonic Distortion / 全高調波歪率 (20 Hz to 20 kHz) PHONO

25、 (MM) to REC OUT (3 V) . 0.025 % or less A-S500 CD, etc. to SP OUT (42.5 W, 8 ohms) .0.015 % or less A-S300 CD, etc. to SP OUT (30 W, 8 ohms) . 0.015 % or less Signal to Noise Ratio / 信号対雑音比 (IHF-A Network) PHONO (MM) (5 mV Input shorted) . 88 dB or more CD, etc. (Pure DIRECT ON) (200 mV input short

26、ed) . 100 dB or more A-S500A-S300A-S500A-S300 10 A-S500/A-S300 A-S500/A-S300 DIMENSIONS / 寸法図 Residual Noise / 残留 (IHF-A Network) .30 V Channel Separation / CD, etc. (Input 5.1 k-ohms shorted) 1 kHz . 65 dB or more 10 kHz . 50 dB or more Tone Control Characteristics / 特性 BASS Boost/Cut (50 Hz) . 10

27、dB Turnover frequency .350 Hz TREBLE Boost/Cut (20 kHz) . 10 dB Turnover frequency .3.5 kHz Continuous Loudness Control / Attenuation / 最大補正率 (1 kHz) .-30 dB Gain Tracking Error / GAIN (0 to -99 dB) .0.5 dB or less General / 総合 Power Supply / 電源電圧 U, C models .AC 120 V, 60 Hz R model .AC 110-120/220

28、-240 V, 50/60 Hz T model .AC 220 V, 50 Hz A model .AC 240 V, 50 Hz B, G models .AC 230 V, 50 Hz L model .AC 220-240 V, 50/60 Hz J model .AC 100 V, 50/60 Hz Power Consumption / 消費電力 A-S500 U, C models .240 W, 330 VA R, T, A, B, G models .240 W L model .220 W A-S300 R, T, A, B, G, L models .190 W J mo

29、del .150 W Standby Power Consumption / 待機時消費電力 . 0.5 W or less YID-W10 Standby Power Consumption (YID-W10 connect) / YID-W10 待機時消費電力（YID-W10 接続時） . 1.2 W or less iPod Charge Power Consumption / iPod 充電時消費電力 A-S500 . 35 W or less A-S300 . 25 W or less Maximum Power Consumption R model (1 kHz, 6 ohms,

30、 10 % THD) A-S500 .510 W A-S300 .400 W AC Outlets / AC J model A-S300 Switched x 2 .100 W max. total Dimensions (W x H x D) / 寸法（幅 高 奥行） .435 x 151 x 387 mm (17-1/8 x 6 x 15-1/4) Weight / 質量 A-S500 .10.3 kg (22.7 lbs.) A-S300 .9.0 kg (19.8 lbs.) Finish / 仕上 Black color . U, C, R, A, B, G, L, J model

31、s Silver color . R, T, A, B, G, L, J models Accessories / 付属品 Remote control .x 1 Battery (R6, AA, UM-3) .x 2 * Specifications are subject to change without notice. 参考仕様外観、製品改良予告変更 。 U .U.S.A. model C .Canadian model R .General model T.Chinese model A .Australian model B .British model G .European m

32、odel L.Singapore model J .Japanese model iPhone, iPod, iPod classic, iPod nano and iPod touch are trademarks of Apple Inc., registered in the U.S. and other countries. iPhone、 iPod、 iPod classic、 iPod nano、 iPod touch 、 米国他国 登録 Apple Inc. 商標。 Front view Top view 435 (17-1/8) 335 (13-1/4)50 (2) 151 (

33、5-7/8) 130 (5-1/8) 21 (7/8) 20.5 (3/4) 25.5 (1) 387 (15-1/4) 341 (13-3/8) 55 (2-1/8) 46 (1-3/4) 240 (9-1/2) 60 Unit: mm (inch) 単位 ： mm（） A-S500A-S300 11 A-S500/A-S300 A-S500/A-S300 OPERATION (1) P.C.B. MAIN (6) P.C.B. MAIN (5) P.C.B. (J model) OPERATION (7) P.C.B. (R model) MAIN (2) P.C.B. DOCK P.C.

34、B. FUNCTION (2) P.C.B. FUNCTION (3) P.C.B. FUNCTION (1) P.C.B. MAIN (4) P.C.B. MAIN (1) P.C.B. MAIN (3) P.C.B. POWER TRANSFORMER OPERATION (11) P.C.B. OPERATION (8) P.C.B. OPERATION (6) P.C.B. OPERATION (3) P.C.B. OPERATION (4) P.C.B. OPERATION (5) P.C.B. OPERATION (9) P.C.B. OPERATION (2) P.C.B. OPERATION (10) P.C.B. Top view Front view 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 911 2122 131012 12 14161718201915 345876 INTERNAL VIEW SERVICE PRECAUTIONS / 時注意事項 Safety measures Some internal parts in this prod