Yamaha-AS-301-Service-Manual电路原理图.pdf

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1、SERVICE MANUAL INTEGRATED AMPLIFIER A-S501/A-S301 CONTENTS TO SERVICE PERSONNEL .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 . 1214 UPDATING FIRMWARE / . 15

2、17 SELF-DIAGNOSTIC FUNCTION / （自己診断機能） . 1830 POWER AMPLIFIER ADJUSTMENT / 調整 .3132 IC DATA .3335 PIN CONNECTION DIAGRAMS .36 BLOCK DIAGRAM .37 WIRING DIAGRAM .38 PRINTED CIRCUIT BOARDS .3960 SCHEMATIC DIAGRAMS .6169 REPLACEMENT PARTS LIST .7189 REMOTE CONTROL .90 1013 13 14.12IP A-S501/A-S301 Radio

3、Fans.CN 收音机爱 好者资料库 2 A-S501/A-S301 A-S501/A-S301 TO SERVICE PERSONNEL 1. Critical Components Information Components having special characteristics are marked and must be replaced with parts having specifications equal to those originally installed. 2. Leakage Current Measurement (For 120V Models Onl

4、y) When service has been completed, it is imperative to verify that all exposed conductive surfaces are properly insulated from supply circuits. Meterimpedanceshouldbeequivalentto1500ohmsshunted by0.15F. WALL OUTLET EQUIPMENT UNDER TEST AC LEAKAGE TESTER OR EQUIVALENT INSULATING TABLE Leakagecurrent

5、mustnotexceed0.5mA. BesuretotestforleakagewiththeACpluginbothpolarities. For U model “CAUTION” “F1:FORCONTINUEDPROTECTIONAGAINSTRISKOFFIRE,REPLACEONLYWITHSAMETYPE8A (AS501)/6A(AS301),125VFUSE.” For C model CAUTION F1:REPLACEWITHSAMETYPE8A(AS501)/6A(AS301),125VFUSE. ATTENTION F1:UTILISERUNFUSIBLEDERE

6、CHANGEDEMMETYPEDE8A(AS501)/6A(AS301),125V. WARNING: CHEMICAL CONTENT NOTICE! This product 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 WH

7、ATSOEVER! Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or expose eyes to solder/fl ux vapor! If you come in contact with solder or components located inside the enclosure of this product, wash your hands before handling food. About lea

8、d free solder / 無鉛 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 + copper) Sn + Cu (tin

9、 + copper) Sn + Zn + Bi (tin + zinc + bismuth) Caution: As the melting point temperature of the lead free solder is about 30 C to 40 C (50 F to 70 F) higher than that of the lead solder, 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） S

10、n+Cu（錫 + 銅） Sn+Zn+Bi（錫 + 亜鉛 + ） 注意： 無鉛融点温度通常鉛入比 30 40程度高、 合 使用。 RadioFans.CN 收音机爱 好者资料库 3 A-S501/A-S301 A-S501/A-S301 IMPEDANCE SELECTOR IMPEDANCE SELECTOR 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. FRONT P

11、ANELS A-S501 A-S301 A-S501 A-S301 4 A-S501/A-S301 A-S501/A-S301 REAR PANELS A-S501 (U model) A-S501 (R model) A-S501 (T model) A-S501 5 A-S501/A-S301 A-S501/A-S301 A-S501 (A model) A-S501 (B, G models) A-S501 (L model) 6 A-S501/A-S301 A-S501/A-S301 A-S501 (J model) A-S301 (U model) A-S301 (R model)

12、A-S301 7 A-S501/A-S301 A-S501/A-S301 A-S301 (T model) A-S301 (K model) A-S301 (A model) 8 A-S501/A-S301 A-S501/A-S301 A-S301 (B, G models) A-S301 (L model) A-S301 (J model) 9 A-S501/A-S301 A-S501/A-S301 SPECIFICATIONS / 参考仕様 Audio Section / 部 Minimum RMS Output Power (Power Amp. Section) / 定格出力（部） (

13、8 ohms, 20 Hz to 20 kHz, 0.019 % THD) AS501 .85W+85W AS301 .60W+60W (6 ohms, 20 Hz to 20 kHz, 0.038 % THD) AS501(U,R,A,B,G,Jmodels) .100 W + 100 W AS301(U,R,K,A,B,G,Jmodels) .70 W + 70 W Dynamic Power Per Channel / (IHF) (8 / 6 / 4 / 2 ohms) AS501 .130/150/185/220W AS301 .100/120/140/150W MAX Power

14、Per Channel B,Gmodels (1 kHz, 0.7 % THD, 4 ohms) AS501 .120 W AS301 .95W IEC Power B,Gmodels (1 kHz, 0.019 % THD, 8 ohms) AS501 .100 W AS301 .75W Power Band Width / AS501(0.04%THD,42.5W,8ohms) . 10Hzto50kHz AS301(0.04%THD,30W,8ohms) . 10Hzto50kHz Damping Factor / (SPEAKERA) (1 kHz, 8 ohms) AS501 .24

15、0 or more AS301 .210 or more Maximum Effective Output Power / 実用最大出力 (JEITA) (1 kHz, 10 % THD) AS501 R,L,Jmodels(8ohms) .130Wh Jmodel(6ohms) .150Wh AS301 R,L,Jmodels(8ohms) .100 Wh Jmodel(6ohms) .110 Whh Input Sensitivity/Input Impedance / 入力感度入力 PHONO(MM) .3.0mV/47kohms CD, etc. .200mV/47kohms Maxi

16、mum Input Signal / 最大許容入力 (1kHz) PHONO (MM) (0.03 % THD) .45 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 kohms or less Subwoofer OUT .3.5 V / 1.2 kohms (Cut off Frequency: 100 Hz) Headphone Jack Rated Output/Impedance / 出力出力 CD, etc. (

17、Input, 1 kHz, 200 mV, 8 ohms) AS501 .430mV/470ohms AS301 .360mV/470ohms REMOTE CONTROL PANEL RAS13 A-S301A-S501A-S301A-S501 10 A-S501/A-S301 A-S501/A-S301 Standby Power Consumption / 待機時消費電力 .0.5 W Maximum Power Consumption Rmodel (1 kHz, 6 ohms, 10 % THD) AS501 .510W AS301 .430W Dimensions (W x H x

18、 D) / 寸法（幅 高 奥行） .435 x 151 x 387 mm (171/8 x 6 x 151/4) Weight / 質量 AS501 .10.3 kg (22.7 lbs.) AS301 .9.0 kg (19.8 lbs.) Finish / 仕上 Blackcolor .U,R,A,B,G,Lmodels Silvercolor .U,T,K,A,B,G,L,Jmodels Accessories / 付属品 Remote control.x 1 Battery(R6,AA,UM3) .x 2 * Specifi cations are subject to change

19、without notice. 参考仕様外観、製品改良予告変更 。 U .U.S.A. and Canadian models R . General model T.Chinese model K .Korean model A .Australian model B .British model G . European model L. Singapore model J .Japanese model DIMENSIONS / 寸法図 Frequency Response / 再生周波数帯域 CD, etc. (20 Hz to 20 kHz) .0 0.5 dB CD, etc. P

20、ure 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 (20Hzto20kHz) PHONO (MM) to REC OUT (2.5 V) .0.03 % or less AS501 CD,etc.toSPOUT(45W,8ohms) .0.019 % or less AS301 CD,etc.toSPOUT(30W,8ohms) .0.019 % or less Signal

21、 to Noise Ratio / 信号対雑音比 (IHFANetwork) PHONO (MM) (5 mV Input shorted) .82 dB or more CD, etc. (Pure DIRECT ON) (200 mV input shorted) .99dBormore Residual Noise / 残留(IHFANetwork) . 40 V Channel Separation / CD, etc. (Input 5.1 kohms shorted) 1kHz .65dBormore 10 kHz .50dBormore Tone Control Characte

22、ristics / 特性 BASS Boost/Cut(20Hz).10dB Turnover frequency .400Hz TREBLE Boost/Cut(20kHz) .10dB Turnover frequency .3.5kHz Continuous Loudness Control / Attenuation / 最大補正率 (1 kHz) .30 dB Supported Digital Audio Format (COAXIAL / OPTICAL) / 対応 (COAXIAL / OPTICAL) .192 / 176.4 / 96 / 88.2 / 48 / 44.1

23、kHz PCM Word Depth / 対応長 .16 / 24 bit Gain Tracking Error / GAIN (0 to 99 dB) .0.5 dB or less General / 総合 Power Supply / 電源電圧 U model .AC 120 V, 60 Hz R model . AC 110120/220240 V, 50/60 Hz T model .AC 220 V, 50 Hz K model .AC 220 V, 60 Hz A model .AC 240 V, 50 Hz B, G models .AC 230 V, 50 Hz L mod

24、el .AC 220240 V, 50/60 Hz J model .AC 100 V, 50/60 Hz Power Consumption / 消費電力 AS501 U,R,A,B,G,Jmodels .240 W T, L models .220 W AS301 U,R,K,A,B,G,Jmodels.190 W T, L models .170 W A-S301A-S501 Top view Unit: mm (inch) 単位 ： mm（） 335 (13-1/4)50 (2) 20.5 (3/4) 25.5 (1) 387 (15-1/4) 341 (13-3/8) 55 (2-1

25、/8) 46 (1-3/4) 240 (9-1/2) 60 Front view 435 (17-1/8) 151 (5-7/8) 130 (5-1/8) 21 (7/8) 11 A-S501/A-S301 A-S501/A-S301 A-S301A-S501 INTERNAL VIEW SERVICE PRECAUTIONS / 時注意事項 Safety measures Some internal parts in this product contain high voltages and are dangerous. Be sure to take safety measures du

26、ring servicing, such as wearing insulating gloves. Note that the capacitors indicated below are dangerous even after the power is turned off because an electric charge remains and a high voltage continues to exist there. Before starting any repair work, connect a discharging resistor (5 kohms/10 W)

27、to the terminals of each capacitor indicated below to discharge electricity. The time required for discharging is about 30 seconds per each. C134, C135 on MAIN (1) P.C.B. For details, refer to “PRINTED CIRCUIT BOARDS: MAIN (1) P.C.B.”. 安全対策 製品内部高電圧部分危険。修理 際、 絶縁性手袋使用安全対策行 。 下記電源 OFF 後電荷残 、高電圧維持危険。 修理

28、作業前放電用抵抗（5 k /10 W）下記各 端子間接続放電。 放電所用時間各約 30 秒間。 MAIN（1）P.C.B. C134、C135 詳 “PRINTED CIRCUIT BOARDS：MAIN（1） P.C.B.” 参照。 a MAIN (8) b MAIN (2) c FUNCTION (4) d MAIN (3) (R model) e DIGITAL f MAIN (6) g FUNCTION (1) h FUNCTION (2) i FUNCTION (3) j MAIN (5) k MAIN (1) l MAIN (4) m POWER TRANSFORMER n OPE

29、RATION (7) o OPERATION (4) p OPERATION (3) q OPERATION (1) r OPERATION (2) s OPERATION (6) t OPERATION (5) Top view Front view 13892 nopq 4567 st kjlm r 12 A-S501/A-S301 A-S501/A-S301 DISASSEMBLY PROCEDURES / 分解手順 (Remove parts in the order as numbered.) Disconnect the power cable from the AC outlet

30、. 1. Removal of Top Cover a. Remove 4 screws (1), 4 screws (2) and screw (3). (Fig. 1) b. Remove the top cover. (Fig. 1) 2. Removal of Front Panel Unit a. (AS501) Remove screw ( ), screw ( ) and then remove the top frame.(Fig. 1) (AS301) Remove screw ( ) and then remove the top support. (Fig. 1) b.

31、Pull out the knobs and cap. (Fig. 1) c. Remove 7 screws ( ). (Fig. 1) d. Remove the front panel unit. (Fig. 1) （番号順部品外。 ） AC 電源、電源抜。 1. 外方 a. 1 4 本、2 4 本、3 1 本外 。 （Fig. 1） b. 取外。 （Fig. 1） 2. 外方 a. (AS501) 1 本、 1 本外、 取外。 （Fig. 1） (AS301) 1 本外、取外 。 （Fig. 1） b. 、取外。 （Fig. 1） c. 7 本外。 （Fig. 1） d. 前方取外。

32、（Fig. 1） Fig. 1 Front panel unit Knob VOLUME VOLUME Knob INPUT INPUT Knob BASS/TREBLE/BAL./LOUD. BASS/TREBLE/BAL./LOUD. Knob SPEAKERS OFF/A/B/A+B SPEAKERS OFF/A/B/A+B Cap POWER POWER Top frame (A-S501) (A-S301) Top cover Top support A-S301A-S501 13 A-S501/A-S301 A-S501/A-S301 Sub-chassis unit Hook C

33、B706 CB101 CB105 Hook CB853 CB2 CB21 FUNCTION (1) P.C.B. FUNCTION (2) P.C.B. FUNCTION (3) P.C.B. CB506 CB505 DIGITAL P.C.B. CB508 CB304 CB301 CB303 3. Removal of Sub-chassis Unit a. Remove 2 screws ( ). (Fig. 2) b. Remove CB505, CB508, CB706 and CB853. (Fig. 2) c. Release 2 hooks and then remove the subchassis unit. (Fig. 2) 4. Removal of DIGITAL P.C.B. a. Remove 3 screws (9). (Fig. 3) b. Remove 3 screws (j). (Fig. 2) c. Remove CB21, CB301, CB303 and CB304 and then remove the DIGITAL P.