Yamaha-AS2100-int-sm(1) 维修电路原理图.pdf

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1、P.O.Box 1, Hamamatsu, JapanSERVICE MANUALINTEGRATED AMPLIFIERA-S2100101 3 0 314.07 CONTENTSTO SERVICE PERSONNEL .2FRONT PANELS .3REAR PANELS .46REMOTE CONTROL PANEL .7SPECIFICATIONS / 参考仕様 .78INTERNAL VIEW .9SERVICE PRECAUTIONS / 時注意事項 .10DISASSEMBLY PROCEDURES / 分解手順 .1123UPDATING FIRMWARE / .2428S

2、ELF-DIAGNOSTIC FUNCTION / （自己診断機能） .2940AMPLIFIER ADJUSTMENT / 調整 .4143IC DATA .4449BLOCK DIAGRAMS .5051WIRING DIAGRAMS .5253PRINTED CIRCUIT BOARDS .5473PIN CONNECTION DIAGRAMS .74SCHEMATIC DIAGRAMS .7583REPLACEMENT PARTS LIST . 85112REMOTE CONTROL . 113IMPORTANT NOTICEThis manual has been provided

3、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 understood by the users, and have therefore not been restated.WARNING: Failure to follow ap

4、propriate 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 advise all Yamaha product owners that any service required should be performed by an auth

5、orized 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 any applicable technical capabilities, or establish a principle-agent relationship of any f

6、orm.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. Modifi cations are, therefore, inevitable and specifi cations are subject to change

7、 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 static electricity your body may have accumulated by grounding yourself to the ground buss i

8、n 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.A-S2100RadioFans.CN 收音机爱 好者资料库This product contains chemicals known to the State of California to cause cancer, or birth

9、 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 i

10、n contact with solder or components located inside the enclosure of this product, wash your hands before handling food.1. Critical Components InformationComponents having special characteristics are marked and must be replaced with parts having specifications equal to those originally installed.2. L

11、eakage 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 SERVICE PERSONNEL Leakage current mus

12、t not exceed 0.5mA. Be sure to test for leakage with the AC plug in both polarities.WARNING: CHEMICAL CONTENT NOTICE!WALLOUTLETEQUIPMENTUNDER TESTAC LEAKAGETESTER OREQUIVALENTINSULATINGTABLE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

13、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 + copper) Sn + Cu (tin + copper) Sn + Z

14、n + 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For U model“CAUTION”“F1: FOR CONTINUED PROTECTION AGA

15、INST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 10A, 125V FUSE.”For C modelCAUTIONF1: REPLACE WITH SAME TYPE 10A, 125V FUSE.ATTENTIONF1: UTILISER UN FUSIBLE DE RECHANGE DE MME TYPE DE 10A, 125V.2A-S2100A-S2100RadioFans.CN 收音机爱 好者资料库 FRONT PANELSU, K, A, B, G, L, V, S, J modelsT model3A-S2100A-S2100 R

16、EAR PANELSU modelK modelT model4A-S2100A-S2100A modelB, G modelsL model5A-S2100A-S2100V modelJ modelS model6A-S2100A-S2100 REMOTE CONTROL PANELRAS31 SPECIFICATIONS / 参考仕様 Audio Section / 部Rated Output Power / 定格出力 (20 Hz to 20 kHz, 0.07 % THD)U, T, K, A, B, G, V, S, J models8 ohms .90 W + 90 W4 ohms

17、 .150 W + 150 WL model8 ohms .90 W + 90 W6 ohms .110 W + 110 WDynamic Power Per Channel / (IHF)8 ohms .105 W + 105 W6 ohms .135 W + 135 W4 ohms .190 W + 190 W2 ohms .220 W + 220 WDynamic Headroom / 8 ohms .0.67 dBMaximum Output Power (1 kHz, 0.7 % THD) B, G models4 ohms .160 W + 160 WIEC Output Powe

18、r (1 kHz, 0.02 % THD) B, G models8 ohms 95 W + 95 WMaximum Effective Output Power / 実用最大出力 (JEITA)(1 kHz, 10 % THD) T, K, B, L, V, S, J models8 ohms .120 W + 120 W4 ohms .190 W + 190 WPower Bandwidth / 出力帯域幅 (0.1 % THD / 45 W, MAIN L/R drive)8 ohms .10 Hz to 50 kHzDamping Factor / (1 kHz)8 ohms .250

19、 or moreInput Sensitivity/Input Impedance / 入力感度入力 PHONO (MC) . 100 Vrms / 50 ohms(MM) . 2.5 mVrms / 47 k-ohmsCD, etc. . 200 mVrms / 47 k-ohmsMAIN IN . 1.0 Vrms / 47 k-ohmsBAL (balanced) . 200 mVrms / 100 k-ohmsMaximum Input Signal Voltage / 最大許容入力電圧 (1 kHz, 0.5 % THD)PHONO (MC) .2.2 mVrms(MM) .50 m

20、VrmsCD, etc. .2.80 mVrmsBAL (balanced) BYPASS .2.80 mVrmsATT. (-6 dB) .5.60 mVrmsRated Output Voltage/Output Impedance / 定格出力電圧出力 REC OUT . 200 mVrms / 1.5 k-ohmsPRE OUT . 1.0 Vrms / 1.5 k-ohmsHeadphone Jack Rated Output Power / 定格出力 (1 kHz, 32 ohms, 0.2 % THD)CD, etc. .50 mW + 50 mWFrequency Respon

21、se / 周波数特性 CD, etc. (5 Hz to 100 kHz) .+0 / -3 dB(20 Hz to 20 kHz) .+0 / -0.3 dBDeviations from RIAA Equalizer / RIAA 偏差 PHONO (MC) . 0.5 dB(MM) . 0.5 dB7A-S2100A-S2100Total Harmonic Distortion / 全高調波歪率 (20 Hz to 20 kHz)PHONO (MC) to REC OUT (1.2 Vrms) .0.02 %(MM) to REC OUT (1.2 Vrms) .0.005 %CD, e

22、tc. to SP OUT (50 W/8 ohms) .0.025 %BAL (balanced) to SP OUT (50 W/8 ohms) .0.025 %Signal to Noise Ratio / 信号対雑音比 (IHF-A network) PHONO (MC) (Input shorted, 500 Vrms) .85 dB(MM) (Input shorted, 5 mVrms) .93 dBCD, etc. (Input shorted, 200 mVrms) .103 dBResidual Noise / 残留 (IHF-A network) .33 VrmsChan

23、nel Separation / (1 kHz/10 kHz) PHONO (MC) (Input shorted, Vol: -30 dB) .66 dB or more / 77 dB or more(MM) (Input shorted, Vol: -30 dB) .90 dB or more / 77 dB or moreCD, etc. (Input 5.1 k-ohms terminated) .74 dB or more / 54 dB or moreTone Control Characteristics / 特性 BassBoost/Cut .9 dB, at 50 HzTu

24、rnover frequency .350 HzTrebleBoost/Cut .9 dB, at 20 kHzTurnover frequency .3.5 kHz General / 総合Power Supply / 電源電圧 U model .AC 120 V, 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 HzV model .AC 110 V, 60 HzS mod

25、el . AC 110120 V, 60 HzJ model .AC 100 V, 50/60 HzPower Consumption / 消費電力 U model .350 W/500 VAT, K, A, B, G, V, S, J models .350 WL model .250 WStandby Power Consumption (reference data) / 待機時消費電力（参考値） .0.3 WMaximum Power Consumption (1 kHz, 4 ohms, 10 % THD) V model .700 WDimensions (W x H x D) /

26、 寸法（幅高奥行） .435 x 157 x 463 mm (17-1/8 x 6-1/8 x 18-1/4)Weight / 質量 .23.4 kg (51.6 lbs.) DIMENSIONS / 寸法図Unit: mm (inch)単位 ： mm（）Finish / 仕上 U, A, B, G, L, V, S, J models .Black/Dark brown colorU, A, B, G, L, J models .Black/Piano black colorU, A, B, G, L, V, J models .Silver/Birch colorU, T, K, A, B

27、, G, L, J models .Silver/Piano black colorColor: Front and top panels / Side panelAccessories / 付属品Remote control .x 1Battery (R03, AAA, UM-4) .x 2Power cable (2 m) (U, T, K, A, B, G, V, S models) .x 1(L model) .x 2(1.5 m) (J model) .x 1* Specifications are subject to change without notice. 参考仕様外観、製

28、品改良予告変更。U .U.S.A. and Canadian modelT .Chinese modelK .Korean modelA .Australian modelB .British modelG .European modelL .Singapore modelV .Taiwan modelS .Brazilian modelJ .Japanese modelFront viewTop view435 (17-1/8)157 (6-1/8)140 (5-1/2)17(5/8) 45317 (12-1/2)56(2-1/4)45(1-3/4)418 (16-1/2)463 (18-1

29、/4)25(1)20(3/4)325 (12-3/4)55(2-1/8)8A-S2100A-S2100 INTERNAL VIEWINPUT (2) P.C.B.INPUT (1) P.C.B.FRONT (17) P.C.B. FUNCTION (2) P.C.B. FRONT (16) P.C.B.FRONT (20) P.C.B. FUNCTION (3) P.C.B. FUNCTION (1) P.C.B. MAIN (3) P.C.B.MAIN (1) P.C.B.POWER TRANSFORMERMAIN (2) P.C.B.FRONT (18) P.C.B.FRONT (19)

30、P.C.B.FRONT (13) P.C.B.FRONT (12) P.C.B.FRONT (1) P.C.B.METER UNITFRONT (15) P.C.B.FRONT (2) P.C.B.FRONT (3) P.C.B.FRONT (5) P.C.B.FRONT (6) P.C.B.FRONT (4) P.C.B.FRONT (7) P.C.B.FRONT (8) P.C.B.FRONT (9) P.C.B.FRONT (10) P.C.B.FRONT (11) P.C.B.FRONT (14) P.C.B.Top viewSide viewFront viewRear view12

31、3456789101112131415161718192021222324252627282930128967534111014 1312171519182016272623242230282921259A-S2100A-S2100 SERVICE PRECAUTIONS / 時注意事項安全対策 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（3）P.C.B. C309、C310、C317 C320、C327、C328詳 “PRINTE

32、D CIRCUIT BOARDS” 参照。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 e

33、lectric charge remains and a high voltage continues to exist there.Before starting any repair work, connect a discharging resistor (5 k-ohms/10 W) to the terminals of each capacitor indicated below to discharge electricity.The time required for discharging is about 30 seconds per each.C309, C310, C3

34、17 to C320, C327 and C328on MAIN (3) P.C.B.For details, refer to “PRINTED CIRCUIT BOARDS”.計測機器取扱上注意本機出力 BALANCED OUT 接続、端子接続計測器側状態保必要。Precaution for handling measuring instrumentSince the speaker output of this unit is BALANCED OUT connected, the ground side of the measuring instrument to be connect

35、ed to the speaker terminal MUST be kept in floating condition.10A-S2100A-S2100Top cover Side panel R RHookSide panel L LConed disc spring L LWasher Coned disc spring L LWasher Hook DISASSEMBLY PROCEDURES / 分解手順Fig. 1(Remove parts in the order as numbered.)Disconnect the power cable from the AC outle

36、t.1. Removal of Side Panel L and Side Panel Ra. Remove 2 screws () together with the coned disc spring L and washer. (Fig. 1)b. Lift the side panel L a little, release hooks at 3 locations and then remove the side panel L. (Fig. 1)c. Remove 2 screws () together with the coned disc spring L and washe

37、r. (Fig. 1)d. Lift the side panel R a little, release hooks at 3 locations and remove the side panel R. (Fig. 1)2. Removal of Top Covera. Remove 10 screws () and 2 screws (). (Fig. 1)b. Remove the top cover. (Fig. 1)（番号順部品外。 ）AC 電源、電源抜。1. L、 R 外方a. 2 本 L、一緒外。 （Fig. 1）b. L 少持上、3 所外、 L 外。 （Fig. 1）c. 2

38、 本 L、一緒外。 （Fig. 1）d. R 少持上、3 所外、 R 外。 （Fig. 1）2. 外方a. 10 本、 2 本外。 （Fig. 1）b. 外。 （Fig. 1）11A-S2100A-S21003. Removal of Front Panel Unita. Remove 4 screws (). (Fig. 2)b. Remove the top frame. (Fig. 2)c. Remove 8 screws (). (Fig. 2)d. Remove CB401, CB403, CB405 and CB406. (Fig. 2)e. Remove the front pa

39、nel unit. (Fig. 2)3. 外方a. 4 本外。 （Fig. 2）b. 外。 （Fig. 2）c. 8 本外。 （Fig. 2）d. CB401、CB403、CB405、CB406 外。 （Fig. 2）e. 外。 （Fig. 2）Fig. 2VOLUME knob unitVOLUME INPUT knob unitINPUT TONE CONTROL knob unitTONE CONTROL Front panel unit CB405CB401CB403CB406FRONT (1) P.C.B.FRONT (14) P.C.B.FRONT (12) P.C.B.Top f

40、rame 12A-S2100A-S2100Fig. 3 When installing the knob unit* Prepare a hexagonal screwdriver (2 mm) for installation of knob unit.When installing the VOLUME knob unit:a. Turn the VOLUME (VR401) clockwise fully. (Fig. 3)b. Match the slit in the VOLUME knob unit with the “VOLUME MAX.” position and insta

41、ll it in that state.(Fig. 3)* At this time, do not tighten the lock set screw.c. Keep about 0.5 mm to 0.75 mm clearance from the front panel to VOLUME knob unit. (Fig. 3)d. Tighten the lock set screw. (Fig. 3)e. After installation, perform following checks. Turn the VOLUME knob unit both directions

42、to check that it does not rub against the front panel. Turn the VOLUME knob unit clockwise fully and check that the slit in it matches with the “VOLUME MAX.” position. Turn the VOLUME knob unit counterclockwise fully and check that the slit in it matches with the “VOLUME MIN.” position. 取付場合 取付場合、6

43、角（2 mm）準備。VOLUME 取付場合：a. VOLUME （VR401） 右回。（Fig. 3）b. VOLUME “VOLUME MAX.” 位置合、取付。 （Fig. 3） 、止締。c. VOLUME 0.5 0.75mm 程度隙間。 （Fig. 3）d. 止締。 （Fig. 3）e. 取付後、次動作確認。 VOLUME 左右回、擦？ VOLUME 右回、VOLUME “VOLUME MAX.” 位置合？ VOLUME 左回、VOLUME “VOLUME MIN.” 位置合？VOLUME knob unitVOLUME Lock set screw止Cut 位置OKNGSlit Sl

44、it “VOLUME MIN.” position“VOLUME MIN.” 位置“VOLUME MAX.” position“VOLUME MAX.” 位置VR401VR4010.50.75 mmFront panel Lock set screw止2 mmHexagonal screwdriver6 角Lock set screw止Cut 位置注意：VOLUME（VR401） 位置 VOLUME 止締。VOLUME 位置VOLUME MAX、VOLUME MIN 位置合。Caution:Do not tighten the fixing screw of the VOLUME knob a

45、t the cut position of the VOLUME (VR401). If the screw is tightened there, the slit in the VOLUME knob will not align with VOLUME MAX. and VOLUME MIN. positions13A-S2100A-S2100Fig. 4When installing the INPUT knob unit:a. Turn the INPUT (SW403) so that the cut in it comes at the under. (Fig. 4)b. Ins

46、tall the INPUT knob unit with its lock set screw positioned at the under. (Fig. 4)* At this time, do not tighten the lock set screw.c. Keep about 0.5 mm to 0.75 mm clearance from the front panel to INPUT knob unit. (Fig. 4)d. Match the lock set screw position with the cut in INPUT (SW403) and tighte

47、n the lock set screw.(Fig. 4)e. Turn the INPUT knob unit by 180 degrees (6 clicks) and tighten another lock set screw. (Fig. 4)f. After installation, perform following checks. Turn the INPUT knob unit in both directions to check that it does not rub against the front panel.INPUT 取付場合：a. INPUT（SW403）

48、位置下回。 （Fig. 4）b. INPUT 止位置下取付。 （Fig. 4） 、止締。c. INPUT 0.5 0.75 mm 程度隙間。 （Fig. 4）d. INPUT（SW403）位置止位置合、止締。 （Fig. 4）e. INPUT 180回転（6 ）、 1 止締。 （Fig. 4）f. 取付後、次動作確認。 INPUT 左右回、擦？Front panel Front panel INPUT knob unitINPUT Install/remove the rock set screw at this positionon the back of the front panel.

49、裏側箇所止取外取付行。Bottom viewLock set screw止Lock set screw止SW403Cut 位置0.50.75 mm14A-S2100A-S2100Fig. 5When installing the BASS, TREBLE and BALANCE knob units:* Use the same installation procedure for BASS, TREBLE and BALANCE knob units.Described here is installation of BALANCE knob unit as an example.a. Tu

50、rn the BALANCE (VR402) in both directions and set it to the center position. (Fig. 5)* VR403 stops at the center position when it is turned in both directions.b. Match the slit in the BALANCE knob unit with the center position of BALANCE and install it in that state. (Fig. 5)* At this time, do not t