Yamaha-AS301-int-sm(1) 维修电路原理图.pdf

SERVICE MANUALINTEGRATED AMPLIFIERA-S501/A-S301 CONTENTSTO SERVICE PERSONNEL .2IMPEDANCE SELECTOR .3FRONT PANELS .3REAR PANELS .48REMOTE CONTROL PANEL .9SPECIFICATIONS / 参考仕様 . 910INTERNAL VIEW .11SERVICE PRECAUTIONS / 時注意事項 .11DISASSEMBLY PROCEDURES / 分解手順 . 1214UPDATING FIRMWARE / . 1517SELF-DIAGNOSTIC FUNCTION / （自己診断機能） . 1830POWER AMPLIFIER ADJUSTMENT / 調整 .3132IC DATA .3335PIN CONNECTION DIAGRAMS .36BLOCK DIAGRAM .37WIRING DIAGRAM .38PRINTED CIRCUIT BOARDS .3960SCHEMATIC DIAGRAMS .6169REPLACEMENT PARTS LIST .7189REMOTE CONTROL .901013 1314.12IPA-S501/A-S301RadioFans.CN 收音机爱 好者资料库2A-S501/A-S301A-S501/A-S301 TO SERVICE PERSONNEL1. 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 Only) When service has been completed, it is imperative to verify that all exposed conductive surfaces are properly insulated from supply circuits. Meterimpedanceshouldbeequivalentto1500ohmsshuntedby0.15F.WALLOUTLETEQUIPMENTUNDER TESTAC LEAKAGETESTER OREQUIVALENTINSULATINGTABLE Leakagecurrentmustnotexceed0.5mA. BesuretotestforleakagewiththeACpluginbothpolarities.For U model“CAUTION”“F1:FORCONTINUEDPROTECTIONAGAINSTRISKOFFIRE,REPLACEONLYWITHSAMETYPE8A(AS501)/6A(AS301),125VFUSE.”For C modelCAUTIONF1:REPLACEWITHSAMETYPE8A(AS501)/6A(AS301),125VFUSE.ATTENTIONF1:UTILISERUNFUSIBLEDERECHANGEDEMMETYPEDE8A(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 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 hands before handling food.About lead 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 + 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） Sn+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3A-S501/A-S301A-S501/A-S301 IMPEDANCE SELECTORIMPEDANCE SELECTORWARNING: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 PANELSA-S501A-S301A-S501A-S3014A-S501/A-S301A-S501/A-S301 REAR PANELSA-S501 (U model)A-S501 (R model)A-S501 (T model)A-S5015A-S501/A-S301A-S501/A-S301A-S501 (A model)A-S501 (B, G models)A-S501 (L model)6A-S501/A-S301A-S501/A-S301A-S501 (J model)A-S301 (U model)A-S301 (R model)A-S3017A-S501/A-S301A-S501/A-S301A-S301 (T model)A-S301 (K model)A-S301 (A model)8A-S501/A-S301A-S501/A-S301A-S301 (B, G models)A-S301 (L model)A-S301 (J model)9A-S501/A-S301A-S501/A-S301 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 % THD)AS501 .85W+85WAS301 .60W+60W(6 ohms, 20 Hz to 20 kHz, 0.038 % THD)AS501(U,R,A,B,G,Jmodels) .100 W + 100 WAS301(U,R,K,A,B,G,Jmodels) .70 W + 70 WDynamic Power Per Channel / (IHF)(8 / 6 / 4 / 2 ohms)AS501 .130/150/185/220WAS301 .100/120/140/150WMAX Power Per Channel B,Gmodels(1 kHz, 0.7 % THD, 4 ohms)AS501 .120 WAS301 .95WIEC Power B,Gmodels(1 kHz, 0.019 % THD, 8 ohms)AS501 .100 WAS301 .75WPower Band Width / AS501(0.04%THD,42.5W,8ohms) . 10Hzto50kHzAS301(0.04%THD,30W,8ohms) . 10Hzto50kHzDamping Factor / (SPEAKERA)(1 kHz, 8 ohms)AS501 .240 or moreAS301 .210 or moreMaximum Effective Output Power / 実用最大出力 (JEITA)(1 kHz, 10 % THD)AS501R,L,Jmodels(8ohms) .130WhJmodel(6ohms) .150WhAS301R,L,Jmodels(8ohms) .100 WhJmodel(6ohms) .110 WhhInput Sensitivity/Input Impedance / 入力感度入力PHONO(MM) .3.0mV/47kohmsCD, etc. .200mV/47kohmsMaximum Input Signal / 最大許容入力 (1kHz)PHONO (MM) (0.03 % THD) .45 mV or moreCD, etc. (0.5 % THD) .2.2 V or moreOutput Level/Output Impedance / 出力電圧出力REC OUT . 200 mV / 1.0 kohms or lessSubwoofer OUT .3.5 V / 1.2 kohms(Cut off Frequency: 100 Hz)Headphone Jack Rated Output/Impedance / 出力出力CD, etc. (Input, 1 kHz, 200 mV, 8 ohms)AS501 .430mV/470ohmsAS301 .360mV/470ohms REMOTE CONTROL PANELRAS13A-S301A-S501A-S301A-S50110A-S501/A-S301A-S501/A-S301Standby Power Consumption / 待機時消費電力 .0.5 WMaximum Power Consumption Rmodel(1 kHz, 6 ohms, 10 % THD)AS501 .510WAS301 .430WDimensions (W x H x 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,LmodelsSilvercolor .U,T,K,A,B,G,L,JmodelsAccessories / 付属品Remote control.x 1Battery(R6,AA,UM3) .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. and Canadian modelsR . General modelT.Chinese modelK .Korean modelA .Australian modelB .British modelG . European modelL. Singapore modelJ .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 dBCD, etc. Pure DIRECT ON (10 Hz to 100 kHz) .0 1.0 dBRIAA Equalization Deviation / RIAA 偏差PHONO (MM) . 0.5 dBTotal Harmonic Distortion / 全高調波歪率 (20Hzto20kHz)PHONO (MM) to REC OUT (2.5 V) .0.03 % or lessAS501CD,etc.toSPOUT(45W,8ohms) .0.019 % or lessAS301CD,etc.toSPOUT(30W,8ohms) .0.019 % or lessSignal to Noise Ratio / 信号対雑音比 (IHFANetwork)PHONO (MM) (5 mV Input shorted) .82 dB or moreCD, etc. (Pure DIRECT ON) (200 mV input shorted) .99dBormoreResidual Noise / 残留(IHFANetwork) . 40 V Channel Separation / CD, etc. (Input 5.1 kohms shorted)1kHz .65dBormore10 kHz .50dBormoreTone Control Characteristics / 特性BASSBoost/Cut(20Hz).10dBTurnover frequency .400HzTREBLEBoost/Cut(20kHz) .10dBTurnover frequency .3.5kHzContinuous Loudness Control / Attenuation / 最大補正率 (1 kHz) .30 dBSupported Digital Audio Format (COAXIAL / OPTICAL) / 対応 (COAXIAL / OPTICAL) .192 / 176.4 / 96 / 88.2 / 48 / 44.1 kHzPCM Word Depth / 対応長 .16 / 24 bitGain 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 HzR model . AC 110120/220240 V, 50/60 HzT model .AC 220 V, 50 HzK model .AC 220 V, 60 HzA model .AC 240 V, 50 HzB, G models .AC 230 V, 50 HzL model .AC 220240 V, 50/60 HzJ model .AC 100 V, 50/60 HzPower Consumption / 消費電力AS501U,R,A,B,G,Jmodels .240 WT, L models .220 WAS301U,R,K,A,B,G,Jmodels.190 WT, L models .170 WA-S301A-S501Top viewUnit: 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(2-1/8)46(1-3/4)240 (9-1/2) 60Front view435 (17-1/8)151 (5-7/8)130 (5-1/8)21(7/8)11A-S501/A-S301A-S501/A-S301A-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 during 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) 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 DIGITALf MAIN (6)g FUNCTION (1)h FUNCTION (2)i FUNCTION (3)j MAIN (5)k MAIN (1)l MAIN (4)m POWER TRANSFORMERn OPERATION (7)o OPERATION (4)p OPERATION (3)q OPERATION (1)r OPERATION (2)s OPERATION (6)t OPERATION (5)Top viewFront view13892nopq4567stkjlmr12A-S501/A-S301A-S501/A-S301 DISASSEMBLY PROCEDURES / 分解手順(Remove parts in the order as numbered.)Disconnect the power cable from the AC outlet.1. Removal of Top Covera. Remove 4 screws (1), 4 screws (2) and screw (3). (Fig. 1)b. Remove the top cover. (Fig. 1)2. Removal of Front Panel Unita. (AS501) Remove screw ( ), screw ( ) and then remove the top frame.(Fig. 1)(AS301) Remove screw ( ) and then remove the top support. (Fig. 1)b. 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。 （Fig. 1）Fig. 1Front panel unit Knob VOLUME VOLUMEKnob INPUT INPUTKnob BASS/TREBLE/BAL./LOUD. BASS/TREBLE/BAL./LOUD.Knob SPEAKERS OFF/A/B/A+B SPEAKERS OFF/A/B/A+BCap POWER POWERTop frame(A-S501)(A-S301)Top coverTop supportA-S301A-S50113A-S501/A-S301A-S501/A-S301Sub-chassis unit HookCB706CB101CB105HookCB853CB2CB21FUNCTION (1) P.C.B.FUNCTION (2) P.C.B.FUNCTION (3) P.C.B.CB506CB505DIGITAL P.C.B.CB508CB304CB301CB3033. Removal of Sub-chassis Unita. 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.C.B. (Fig. 2)5. Removal of DIGITAL P.C.B.a. Remove 7 screws (k). (Fig. 3)b. Remove screw (l) and screw (m). (Fig. 2)c. Remove CB2, CB101, CB105 and CB404 and then remove the FUNCTION (1)(3) P.C.B. (Fig. 2)3. 外方a. 2 本外。 （Fig. 2）b. CB505、 CB508、 CB706、 CB853 外。 （Fig. 2）c. 2 箇所外、取外。 （Fig. 2）4. DIGITAL P.C.B. 外方a. 9 3 本外。 （Fig. 3）b. j 3 本外。 （Fig. 2）c. CB21、 CB301、 CB303、 CB304 外、 DIGITAL P.C.B. 外。 （Fig. 2）5. FUNCTION (1) (3) P.C.B. 外方a. k 7 本外。 （Fig. 3）b. l 1 本、m 1 本外。 （Fig. 2）c. CB2、CB101、CB105、CB404 外、FUNCTION (1) (3) P.C.B. 一緒取外。 （Fig. 2）Fig. 2Fig. 314A-S501/A-S301A-S501/A-S301GrouSuRund lead線b-chassis unit bber sheet and cloth布 When checking the P.C.B.s: Put the rubber sheet and the cloth over this unit, Then place the subchassis unit on the cloth and check it. (Fig. 4) Connect the ground point of the subchassis unit to the chassis with a ground lead or the like. (Fig. 4) Reconnect all cables (connectors) that have been disconnected. When connecting the flexible flat cable, be careful with polarity.P.C.B. 場合： 本機上布敷、上置。 （Fig. 4） 線等接続。 （Fig. 4） 外（）接続。 接続際、極性注意。Fig. 415A-S501/A-S301A-S501/A-S301 UPDATING FIRMWARE / When the following parts are replaced, the firmware must be updated to the latest version.FUNCTION P.C.B. Confirmation of firmware versionBefore and after updating the firmware, check the firmware version by using the selfdiagnostic function menu.Start up the selfdiagnostic function, have the firmware version indicated, and note them down. (For details, refer to “SELFDIAGNOSTIC FUNCTION”)* When the firmware version is different from written one after updating, perform the updating procedure again from the beginning. Factory presetAfter updating the firmware, revert to factory presets with the following procedure to properly store the setup information.Start up the selfdiagnostic function.(For details, refer to “SELFDIAGNOSTIC FUNCTION”)Set the “SPEAKERS” selector to the “A” position, press the “z” (power) switch to turn off the power once and press the “z” (power) switch to turn on the power again.Then the factory preset is performed. Required Tools CD, DVD or BD player (with DIGITAL OUTPUT (OPTICAL or COAXIAL) jack) Optical cable (when OPTICAL jack is used) Digital audio pin cable (when COAXIAL jack is used) Firmware CD Download the latest firmware from the specified download source and create the firmware CD.下記部品交換場合、最新必要。FUNCTION P.C.B. 確認前後、確認。起動表示、書。（詳細 参照。 ） 後、書込異場合、最初直。 後、設定情報正常記憶、下記方法必要。本機起動。（詳細 参照。 ）“SPEAKERS” “A” 位置、“z”（電源）押電源切、再“z”（電源）押電源入。 必要 CD、DVD BD （DIGITAL OUTPUT（OPTICAL COAXIAL）端子付） 光（OPTICAL 端子使用時） 音声 （COAXIAL 端子使用時） CD 指定先最新、 CD 製作。A-S301A-S501* The following models can be used as a tool to update the firmware. 下記用使。CD player: CD-C600/CD-S1000/CD-S2000/CD-S300/CD-S700/CDX-496/CDX-596/CDX-890DVD player: DV-C6760/DVD-840/DVD-C740/DVD-C750/DVD-C940/DVD-C950/DVD-CX1/DVD-S1200/DVD-S1800/DVD-S2300(MKII)/DVD-S2700/DVD-S30/DVD-S510/DVD-S520/DVD-S530/DVD-S540/DVD-S550/DVD-S657/DVD-S700/DVD-S80/DVD-S840BD (Blu-ray) player: BD-940/BD-S1065/BD-S1900/BD-S2900/BD-S671Others: CDR-D651/CDR-HD10016A-S501/A-S301A-S501/A-S301 ConnectionUse the optical cable (when OPTICAL jack is used) or Digital audio pin cable (when COAXIAL jack is used) to connect the CD, DVD or BD player and the unit. Operation Procedures1. Set this unit to the firmware update mode.a. Connect the power cable of this unit to the AC outlet. (Fig.1)b. Set the “z” (power) switch to the OFF position. (Fig.1)c. Fully turn the “BALANCE” knob to the right (R). (Fig.1)d. Fully turn the “VOLUME” knob to the left (minimum). (Fig.1)e While pressing the “PURE DIRECT” switch, press the “z” (power) switch to turn on this unit. (Fig.1) The unit is set to the firmware update mode.When this unit is set to the firmware update mode, the power indicator flashes at a 1second interval.When this unit is set to the firmware update mode, the “LINE3” indicator light up. (Fig. 2)2. Play the firmware CD on the CD/DVD/BD player. Updating of the firmware starts automatically. (Fig. 3) 接続光（OPTICAL 端子使用時） 、音声（COAXIAL 端子使用時）使用、CD、DVD BD 本体接続。 操作手順1. 設定。a. 電源AC 接続。 （Fig.1）b. “z” （電源） 押。 （Fig.1）c. “BALANCE”右 （R） 回。 （Fig.1）d. “VOLUME” 左（最少）回。 （Fig.1）e. “PURE DIRECT” 押本体 “z”（電源）押電源入。 （Fig.1） 入。入、秒間隔点滅。入、“LINE3”点灯。 （Fig.2）2. CD/DVD/BD CD 再生。 自動的開始。 （Fig.3）Updating started開始Updating中Fig. 3PURE DIRECT switch“PURE DIRECT” VOLUME knob“VOLUME” BALANCE knob“BALANCE” Power indicator (Power) switchOFFON/STANDBY“ ” （電源） Fig. 1Fig. 2Power cable電源AC outletAC17A-S501/A-S301A-S501/A-S301Note: Ifthelightingpatternofthe“INPUT”indicatorsdoes not change 10 seconds or more after playback of the firmware CD was started, try updating the firmware again, starting from the beginning of the procedure. Becarefulthatthepowercableisnotunpluggedand the power voltage does not drop while the firmware is being updated. Otherwise, firmware updating may fail and cannot be performed again.3. After the firmware has been updated, all “INPUT” indicators light up. (Fig. 4)After checking that all “INPUT” indicators light up, press the “z” (power) switch to turn it off, then on again.Note:If the power indicator flashes at a 0.5second interval or all “INPUT” indicators do not light up after updating the firmware, try updating the firmware again, starting from the beginning of the proce