Yamaha-YSTSW-215-Service-Manual (1)电路原理图.pdf

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1、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 specifically YAMAHA Products, are already known and understood by the users, and have therefore

2、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 specified. For these reasons, we advise all YAMAHA product owners that any s

3、ervice 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 estab

4、lish 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, inevitab

5、le 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

6、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. I CONTENTS TO SERVICE PERSONNEL . 2 INTERNAL VIEW . 2 SPECIFICATIONS / 参考仕様 .

7、 3 REAR PANELS . 34 DISASSEMBLY PROCEDURES / 分解手順 . 56 CONFIRMATION OF AUTO STANDBY OPERATION / AUTO STANDBY 動作確認 . 7 BLOCK DIAGRAM. 8 PRINTED CIRCUIT BOARD . 910 SCHEMATIC DIAGRAM . 11 PARTS LIST. 1320 YST-SW215 100854 P.O.Box 1, Hamamatsu, Japan SERVICE MANUAL SUBWOOFER SYSTEM YST-SW215 YST-SW215

8、2 YST-SW215 WALL OUTLET EQUIPMENT UNDER TEST AC LEAKAGE TESTER OR EQUIVALENT INSULATING TABLE I TO SERVICE PERSONNEL 1. Critical Components Information Components having special characteristics are marked s and must be replaced with parts having specifications equal to those originally installed. 2.

9、 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. GMeter impedance should be equivalent to 1500 ohm shunted by 0.15F. I INTERNAL VIEW “CAUTION” “F1: FOR CON

10、TINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 4A, 125V FUSE.” CAUTION F1: REPLACE WITH SAME TYPE 4A, 125V FUSE. ATTENTION F1: UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE DE 4A, 125V. WARNING: CHEMICAL CONTENT NOTICE! The solder used in the production of this product contains L

11、EAD. In addition, other electrical/electronic and /or plastic (where applicable) components may also contain 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, ELECT

12、RICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REA- SON 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 enc

13、losure of this product, wash your hands before handling food. GLeakage current must not exceed 0.5mA. GBe sure to test for leakage with the AC plug in both polarities. 1 1 MAIN (8) P.C.B. 2 MAIN (4) P.C.B. 3 MAIN (1) P.C.B. 4 MAIN (3) P.C.B. 5 MAIN (2) P.C.B. 6 POWER TRANSFORMER 7 MAIN (7) P.C.B. 8

14、MAIN (6) P.C.B. 9 MAIN (5) P.C.B. 2 679 453 8 YST-SW215 3 YST-SW215 I SPECIFICATIONS / 参考仕様 Type / 型式 . Advanced Yamaha Active Servo Technology Output Power / 出力. 120 W (100 Hz, 5 , 10% T.H.D.) Input Sensitivity / 入力感度 INPUT1 (SP) .1 V (50 Hz, 120 W / 5 , L + R) INPUT2 (PJ) .50 mV (50 Hz, 120 W / 5

15、, L + R) Input Impedance / 入力 INPUT1 (SP) . 2.2 k INPUT2 (PJ) . 12 k Frequency Response / 再生周波数帯域 .28 Hz to 200 Hz Driver / .8 (20 cm) cone, Magnetic Shielding Type Input Section / 入力部 INPUT1. Speaker Terminal INPUT2. RCA Pin Jack Operation Section / 操作部 Front Panel.STANDBY/ON Switch, B.A.S.S. Switc

16、h, Volume Control, High Cut Control, LED Indicator Rear Panel .Power Switch, Auto Standby Switch (HIGH / LOW / OFF), Phase Switch (NORM / REV), Voltage Selector (R, T, K models only) Power Supply / 電源 U, C models .AC 120 V, 60 Hz A model .AC 240 V, 50 Hz B, G models .AC 230 V, 50 Hz R, T, K models .

17、AC 240 / 220 / 120 / 110 V, 50/60 Hz J model. AC 100 V, 50/60 Hz Power Consumption / 消費電力 U, C, A, B, G, R, T, K models . 95 W J model. 70 W Standby Power Consumption / 待機時消費電力 . 0.5 W Dimensions / 外形寸法 (W x H x D) .290 x 360 x 322 mm (11-7/16 x 14-3/16 x 12-11/16) Weight / 質量 . 11.5 kg (25 lbs. 6 o

18、z.) Finish Cherry Color. U, C, A, B, G, R, T, K, J models Black Color . U, C, A, B, G, R, T, J models Accessories / 付属品 Subwoofer Cable (3 m) x 1 (J model), Speaker cable (4 m) x 2 (J model), Nonskid Pad x 4 * Specifications are subject to change without notice due to product improvements. 参考仕様外観予告変

19、更。 U . U.S.A. modelC . Canadian model A . Australian modelB . British model G . European modelR . General model T . Chinese modelK . Korean model J. Japanese model DIMENSIONS / 寸法図 I REAR PANELS A modelU, C models 290(11-7/16) 322(12-11/16) 295(11-5/8) 27 (1-1/16) 290(11-7/16)70 (2-3/4) 360(14-3/16)

20、 YST-SW215 4 YST-SW215 B, G models T model J model K model R model YST-SW215 5 YST-SW215 I DISASSEMBLY PROCEDURES / 分解手順 （番号順部品取外。） AC電源、電源抜。 1. 外方 a. 4本外、取外。 （Fig. 1） b. 4本外、取外 。 （Fig. 1） c. 端子接続 外。 （Fig. 1） (Remove parts in the order as numbered.) Disconnect the power cable from the AC outlet. 1.

21、Removal of Driver a. Remove 4 screws (1) and then remove the Base. (Fig. 1) b. Remove 4 screws (2) and then remove the Driver. (Fig. 1) c. Disconnect the connector connected to the terminal of the Driver. (Fig. 1) Fig. 2 Fig. 1 2. Assy外方 a. 4本外。 （Fig. 2） 取外六角 （2.5mm） 使用。 b. Assy引出、CB4外。 （Fig. 2） 2.

22、Removal of Front Panel Assy a. Remove 4 screws (3). (Fig. 2) * Use an Allen wrench (2.5mm) to unscrew the Front Panel Assy. b. Pull out the front panel assy and remove CB4. (Fig. 2) Speaker Unit 2 2 Base 11 Connector CB4 Front panel Assy Assy 3 3 YST-SW215 6 YST-SW215 Fig. 3 3. Assy外方 a. 8本外。 （Fig.

23、3） 取外矢印 （） 印刷。 b. Assy引出。 （Fig. 3） c. 2本外。 （Fig. 3） 取外矢印 （） 印刷。 d. 外。 （Fig. 3） 3. Removal of Rear Panel Assy a. Remove 8 screws (4). (Fig. 3) * Screws (4) are identified with arrow marks (). b. Pull out the rear panel assy. (Fig. 3) a. Remove 2 screws (5). (Fig. 3) * Screws (5) are identified with a

24、rrow marks (). b. Remove the rear cover. (Fig. 3) When Checking the P.C.B.: Connect all the connectors removed during disassembly back to the original positions. Spread cloth first and place the rear panel assy on it. (Fig. 4) P.C.B.場合 分解際外元通接続 。 布敷、上Assy 置。 （Fig. 4） Fig. 4 4 5 5 4 Rear panel Assy A

25、ssy Rear Cover Rubber sheet and cloth 布 YST-SW215 7 YST-SW215 設定 1） 主電源OFF。 2） 動作確認時間短縮、MAIN P.C.B. （3） R252両端10 k抵抗取付。 3） 信号発生器出力信号本機入力2端子接続 。 4） 信号発生器正弦波、100 Hz、8 mV設定。 5） 主電源ON。 確認 1） 感度 低 合。 2） STANDBY/ONON。 表示LED点灯 （緑色） 。510秒後、表示LED 赤色変。 3） STANDBY/ONOFF。 表示LED消灯。 4） 感度 高 合。 5） STANDBY/ONON。 表示

26、LED点灯 （緑色） 。時間経過表示 LED色変化。 6） STANDBY/ONOFF。 表示LED消灯。 確認終了後 1） 主電源OFF。 2） R252両端取付抵抗外。 Setting 1) Turn off the power switch located on the rear panel. 2) In order to shorten the time required for operation check; connect a 10 k resistor at both ends of R252 on the MAIN P.C.B. (3). 3) Connect the out

27、put signal from the signal generator to the L / MONO terminal of the unit. 4) Set the signal generator for the sine wave of 100 Hz, 8 mV. 5) Turn on the power switch located on the rear panel. Confirmation 1) Set the AUTO STANDBY switch to the LOW position. 2) Turn on the STANDBY/ON switch. The disp

28、lay LED lights up (green) and its color changes to red after 5 to 10 seconds. 3) Turn off the STANDBY/ON switch. The display LED goes off. 4) Set the AUTO STANDBY switch to the HIGH position. 5) Turn on the STANDBY/ON switch. The display LED lights up (green) and its color remains unchanged even aft

29、er time have elapsed. 6) Turn off the STANDBY/ON switch. The display LED goes off. After Confirmation 1) Turn off the power switch located on the rear panel. 2) Disconnect the 10 k resistor connected to both ends of R252. ICONFIRMATION OF AUTO STANDBY OPERATION / AUTO STANDBY動作確認 YST-SW215 8 YST-SW2

30、15 I BLOCK DIAGRAM IC3 Q1, 2 REGULATOR POWER SUPPLY D1 SUB POWER SUPPLY D203 Q209 T1 T2 D202 D12 Q206 D9 +15 +B -15 -B Q9 Q10 RY2 F1 PROTECTION 0.1 DRIVER RY1 3 IC1 MUSIC SENSOR IC4 TIMER IC201 + 8 4 6 7 3 AUTO STANDBY SW2 H AUTO POWER ON/OFF CIRCUIT Q5, 6, 7, 8 D4, 5, 22, 23 Q205 R252 C227 POWER AM

31、P 1 OFF L IC202 REGULATOR STANDBY/ON SW4 Q207, 208 D204 REGULATOR (R, T, K models only) POWER SW5 A.N.I.C IC2, Q16 L.P.F 6dB/oct 1 12 Q21, 22 D24 IC11A IC11B IC7A VR1 VOLUME L.P.F. 6dB/oct B.P.F. Q201204 L.P.F. 12dB/oct 3 61 58 IC7B 4 22 HIGH CUT VR2 L R + + INPUT 1 L R INPUT 2 L R + + OUTPUT IC10A

32、7 87 6 SW1 PHASE SELECT IC10B L.P.F. 12dB/oct 4 2 BASS SELECT SW3 H.P.F. 12dB/oct + + + 6 LIMITER H OFF L ABCDEFGHIJ 1 2 3 4 5 6 7 YST-SW215 9 PHASE REVNORMHIGHOFFLOW INPUT2 INPUT1/OUTPUT LRAUTO STANDBY VOLUMEHIGH CUT B.A.S.S.STANDBY/ON MAIN (3) P.C.B.MAIN (1) P.C.B. MAIN (4) P.C.B.MAIN (8) P.C.B. D

33、RIVER MAIN (2) P.C.B. VCC +V1 E TOVL E MAIN BASS +V2 +15 -15 PWS VCC +V1 PWS MA1 E TOVL BASS +15 -15 LIM MA2 +V1 PWS MA1 E TOVL BASS +15 -15 LIM MA2 + LEDG E1 LEDR LEDG E1 LEDR RE RE BL MAIN (6) P.C.B. I PRINTED CIRCUIT BOARD (Foil side) Ref. No.Location D1J3 D2I4 D3J4 D4F3 D5F3 D6H3 D7F3 D9H4 D12I6

34、 D19H3 D20G3 D21G3 D22F4 D23F4 D24J3 D202H6 IC1H2 IC2H4 IC3H4 IC4D5 IC7F6 IC10C3 IC11D5 IC201D4 Q1G3 Q2G3 Q5F4 Q6F4 Q7F3 Q8G3 Q9I4 Q10J4 Q16G4 Q21H4 Q22H4 Q201D2 Q202D3 Q203D2 Q204D2 Q205C4 Q206H6 Semiconductor Location 2 ABCDEFGHIJ 1 3 4 5 7 YST-SW215 6 10 POWER VOLTAGE SELECTOR MAIN (2) P.C.B. MAI

35、N (7) P.C.B. MAIN (7) P.C.B. MAIN (6) P.C.B.MAIN (6) P.C.B. MAIN (9) P.C.B. MAIN (5) P.C.B. MAIN (1) P.C.B. MAIN (1) P.C.B. J, U, C, A, B, G models R, T, K models AC VCC +V1 E OR WH WH BE BE REREBL BEWHRE RE BL BL YE YE BR BR GR GR BE BE OR GY GY MAIN (1) P.C.B. REREBL I PRINTED CIRCUIT BOARD (Foil

36、side) Semiconductor Location Ref. No.Location D203B3 D204A3 D205B3 IC202A2 Q207A3 Q208A3 Q209A3 ABCDEFGHIJKL YST-SW215 11 SCHEMATIC DIAGRAM 1 2 3 4 5 6 7 8 9 87654321 OUT1 Vcc +IN2 IN2 OUT2 +Vcc +IN1 IN1 IC11: NJM4558L Dual OP-Amp 1 8 IC2, 4, 7, 10: PC4570HA Dual OP-Amp VccVo1-Vm1+Vm1VEE+Vm2-Vm2Vo2V

37、cc 1? 2? 3? 4? 5? 6? 7? 8? 9 +- 12 1 9 IC3 : TA7317P Protector 1 6 2 3 8 74 9 Muting circuit Constant voltage power supply circuit Schmidt circuit Power supply ON/OFF detecting circuit Discharging circuit 5 Substrate Overcurrent detecting circuit OR circuit Current voltage detecting circuit GND 1 9

38、Relay drive circuit IC201: LB8555D Timer 1 VCC8DISCHARGE 7 CONTROL VOLTAGE5 THRESHOLD6 + TRIGGER GND 2 RESET4 + R SQ 1 48 OUTPUT 3 VIN VOUT GND OUT COM IN IC202 NJM78L08A Voltage Regulator PIN CONNECTION DIAGRAM OF TRANSISTORS, DIODES AND ICS. 2SB16422SK3042SC46881SR139 1SS133 MTZJ12C MTZJ15C MTZJ24

39、B S1NB202SA1015 2SA970 2SC1815 2SC2240 2SC2878 D3SBA20NJM4558LNJM78L08Am PC4570HATA7317PSTK404-120LB8555D Anode Cathode + + EC B BC E BC E S G D IC1: STK404-120 Power Amp. H? All voltages are measured with a 10M /V DC electric volt meter. H? Components having special characteristics are marked s and

40、 must be replaced with parts having specifications equal to those originally installed. H? Schematic diagram is subject to change without notice. 1 12 0 0 0 1.4 0 0 0.1 0.7 0 0.1 -14.6 14.8 1.9 0 0 0 0 0 0 0 0 0 0 0 1.5 6.6 8.0 8.0 4.6 4.6 5.4 0 4.9 -14.6 0 0 0 0 0 0 0 0 0.1 0.1 0.1 3.9 6.8 6.7 8.0

41、3.9 14.8 -0.1 14.8 0 0 14.0 0.1 0.7 -14.6 10.7 10.7 10.7 10.0 0 -22.7 0 0 50.1-5.2 6.2 6.1 13.3 0 0 0 0.7 0.1 13.2 -42.6-14.6 -15.1 -15.1 0 0 15.3 15.3 41.914.8 6.0 24.21.1 6.6 -0.3 -0.3 0.2 0.6 0.7 0 8.0 0.113.2 -0.3 0 0 0 0 -0.7 1.1 1.4 3.1 0 0 0 0 0 0 0 00 00 0 -14.8 14.9 0 0 0.1 0.1 0.3 0.3 0 -4

42、9.6 -50.2 -1.1 14.8 1.21.2 50.1 0 0 0 0 50.0 50.3 -0.3 50.1 0 0 00 -0.2 14.8 0 0 0-0.2 0 -0.2 -14.6 -1.8 0 AC 12.5 AC 73.9 L.P.F. B.P.F AUTO POWER ON / OFF CIRCUIT L.P.F H.P.FL.P.F LIMITER POWER AMP A.N.I.C. PROTECTION PROTECTION REGULATOR REGULATOR POWER SUPPLY SUB POWER SUPPLY YST-SW215 13 YST-SW2

43、15 I WARNING GComponents having special characteristics are marked s and must be replaced with parts having specifications equal to those originally installed. GCarbon resistors (1/6W or 1/4W) are not included in the ELECTRICAL PARTS List. For the parts No. of the carbon resistors, refer to last pag

44、e. s印部分、 安全確保部品示 。 部品交換必要場合、 記載部品使用 。 本機使用 抵抗1/6W1/4W。 、 記載 、 部品番号HF45 同 等品使用 。 部品価格、 予告 変更 。 ABBREVIATIONS IN THIS LIST ARE AS FOLLOWS: Note) Those parts marked with “#” are not included in the P.C.B. assy. PARTS LIST I ELECTRICAL PARTS C.A.EL.CHP: CHIP ALUMI.ELECTROLYTIC CAP C.CE: CERAMIC CAP C.CE

45、.ARRAY : CERAMIC CAP ARRAY C.CE.CHP: CHIP CERAMIC CAP C.CE.ML: MULTILAYER CERAMIC CAP C.CE.M.CHP: CHIP MULTILAYER CERAMIC CAP C.CE.SAFTY: RECOGNIZED CERAMIC CAP C.CE.TUBLR: CERAMIC TUBULAR CAP C.CE.SMI: SEMI CONDUCTIVE CERAMIC CAP C.EL: ELECTROLYTIC CAP C.MICA: MICA CAP C.ML.FLM: MULTILAYER FILM CAP C.MP: METALLIZED