Yamaha-YSTSW-015-Service-Manual电路原理图.pdf

YST-SW015 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 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 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 firm does not constitute authorization, certification or recognition of any 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 products. Modifications are, therefore, inevitable 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 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 SPECIFICATIONS / 参考仕様 . 2 INTERNAL VIEW . 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. 1319 Parts List for Carbon Resistors . 20 100835 P.O.Box 1, Hamamatsu, Japan SERVICE MANUAL SUBWOOFER SYSTEM YST-SW015 YST-SW015 2 YST-SW015 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. 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 SPECIFICATIONS / 参考仕様 Type / 型式 . Advanced Yamaha Active Servo Technology Output Power / 出力. 70 W (100 Hz, 5 , 10% T.H.D.) Input Sensitivity / 入力感度 INPUT (PJ) .30 mV (100 Hz, 70 W / 5 , L + R) Input Impedance / 入力 INPUT (PJ) . 12 k Frequency Response / 再生周波数帯域 .30 Hz to 200 Hz Driver / . 6.5 cone, Magnetic Shielding Type Input Section / 入力部 INPUT. RCA Pin Jack Operation Section / 操作部 Front Panel.STANDBY/ON Switch, B.A.S.S. Switch, 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) 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 . AC 110-120 / 220-240 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 . 70 W J model. 38 W Standby Power Consumption / 待機時消費電力 . 0.8 W Dimension / 外形寸法 (W x H x D) .280 x 325 x 320 mm (11 x 12-13/16 x 12-5/8) Weight / 質量 . 9.2 kg (20 lbs. 5 oz.) Finish Cherry Color. All models Black Color . All models Silver Color. All models Accessories / 付属品 Subwoofer Cable (3 m) x 1 pc (J model), Non-skid Pad x 4 pcs * Specifications are subject to change without notice due to product improvements. 参考仕様外観予告変更。 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 “CAUTION” “F1: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 2A, 125V FUSE.” CAUTION F1: REPLACE WITH SAME TYPE 2A, 125V FUSE. ATTENTION F1: UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE DE 2A, 125V. WARNING: CHEMICAL CONTENT NOTICE! The solder used in the production of this product contains LEAD. 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, ELECTRICAL/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 enclosure 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. 280 (11) 48 (1-7/8) 277 (10-7/8) 325 (12-13/16) 320 (12-5/8) Unit : mm (inch) 単位: mm（） YST-SW015 3 YST-SW015 I INTERNAL VIEW 1 MAIN (8) P.C.B. 2 MAIN (4) P.C.B. 3 MAIN (3) P.C.B. 4 MAIN (1) P.C.B. 5 MAIN (9) P.C.B. (R, T, K models) 6 MAIN (2) P.C.B. 7 MAIN (5) P.C.B. 8 MAIN (7) P.C.B. (U, C, A, B, G, J models) MAIN (10) P.C.B. (R, T, K models) 9 MAIN (6) P.C.B. I REAR PANELS A modelU, C models 789 123465 YST-SW015 4 YST-SW015 B, G models T model J model K model R model YST-SW015 5 YST-SW015 I DISASSEMBLY PROCEDURE / 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. 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. 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) Connector Driver Base 11 2 2 CB4 Front Panel Assy Assy 3 3 YST-SW015 6 YST-SW015 Fig. 3 3. Assy外方 a. 8本外。 （Fig. 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 arrow marks (). b. Remove the 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 Rear Panel Assy Assy Power Switch 主電源 Cover 4 5 5 4 Rubber Sheet and Cloth 布 YST-SW015 7 YST-SW015 設定 1） 主電源OFF。 2） 動作確認時間短縮、MAIN P.C.B. （3） R60両端10k抵抗取付。 3） 信号発生器出力信号本機入力端子接続。 4） 信号発生器正弦波、100Hz、8mV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） R60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 10k resistor at both ends of R60 on the MAIN P.C.B. (3). 3) Connect the output signal from the signal generator to the INPUT of the unit. 4) Set the signal generator for the sine wave of 100Hz, 8mV. 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 display 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 after 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 10k resistor connected to both ends of R60. ICONFIRMATION OF AUTO STANDBY OPERATION / AUTO STANDBY動作確認 YST-SW015 8 YST-SW015 I BLOCK DIAGRAM LIMITER IC3 REGULATOR POWER SUPPLY D1 SUB POWER SUPPLY D11 Q11 T1 T2 D13 D12 Q3 D9 +15 +B -15 -B Q9 Q10 RY2 F1 PROTECTION 0.1 DRIVER RY1 2 IC8 2 4 3 IC7B IC7A L.P.F 12dB/oct 8 6 7 VR1 VOLUME VR2 HIGH CUT 7 6 5 IC1BIC1A 1 2 3 MUSIC SENSOR IC4 TIMER IC5 + 8 4 6 7 3 AUTO STANDBY SW2 H AUTO POWER ON/OFF CIRCUIT Q5, 6, 7, 8 D4, 5, 22, 23 + - + - - + - + INPUT L R Q12 R60 C46 POWER AMP 1 H.P.F 12dB/oct OFF L IC9 REGULATOR Q4, 13 D14 REGULATOR (R, T, K models only) POWER SW5 A.N.I.C IC2, Q16 L.P.F 6dB/oct 1 10 L.P.F 6dB/oct PHASE REVERSE NORMAL Q14, 15 ABCDEFGHIJ 1 2 3 4 5 6 7 YST-SW015 9 J48 C65 MAIN (1) P. C. B.(Lead Type Device)MAIN (2) P. C. B.(Lead Type Device) MAIN (3) P. C. B.(Lead Type Device) 1 19 18 19 19 10 MAIN (4) VCC PWS -15 +15 E TOVL +V2 BASS MAIN E +15 -15 PWS +V1 TOVL E SP-SP+ +V1 VCC E W9A W5A +V1 VCC -15 +15 TOVL +V1 PWS E MAIN (6) Driver U, C, A, B, G, J models: MAIN (7) R, T, K models: MAIN (10) Power Cable MAIN (5) W8A W11A W12A INPUTAUTO STANDBYPHASE OFF LOW HIGH REVNORM CONFIRMATION OF AUTO STANDBY OPERATION R60 1M I PRINTED CIRCUIT BOARD (Foil side) Ref. No.Location D1E3 D2E4 D3E4 D4A3 D5B3 D6C2 D7B3 D9C4 D10G4 D11H4 D14H4 D19C3 D20C3 D21C3 D22A3 D23B3 IC1C6 IC2C3 IC3D4 IC4E6 IC5E7 IC8C2 IC9G4 Q1B3 Q2B3 Q4G4 Q5A3 Q6B3 Q7A3 Q8B3 Q9E4 Q10E4 Q11G4 Q12E6 Q13G4 Q14C4 Q15C4 Q16B3 Semiconductor Location Circuit No.JU, CR, T, KAB, G C40OOXOO C53XXXXO C62, 63XXOXX CB7, 8XXOXX D14XXOXX F2XXOXX Q4, 13XXOXX R62OOXOO R73XXOXX SW6XXOXX W1316XXOXX X: NOT USED O: USED / APPLICABLE 2 ABCDEFGHIJ 1 3 4 5 7 YST-SW015 6 10 MAIN (4) P. C. B.(Lead Type Device)MAIN (5) P. C. B. (Lead Type Device) MAIN (8) P. C. B. (Lead Type Device) MAIN (9) P. C. B. (Lead Type Device) MAIN (6) P. C. B. U, C, A, B, G, J models (Lead Type Device) MAIN (7) P. C. B. (Lead Type Device) MAIN (10) P. C. B. (Lead Type Device) MAIN (1) MAIN (2) VOLUMEHIGH CUTB.A.S.S.STANDBY/ON POWER ON/OFF VOLTAGE SELECTOR MAIN (1) VCC PWS -15 +15 E TOVL +V2 BASS MAIN LEDR E LEDG LEDR E LEDG 9 1 MAIN (2) Power Transformer W11B W5B W8BW9B MAIN (2) W8BW9B W15BW13BW16BW14B W13AW14AW15A W16A W12B MAIN (6) P. C. B. R, T, K models (Lead Type Device) MAIN (1) Power Transformer W5B 110-120V 220-240V ON STANDBY MUSIC MOVIE I PRINTED CIRCUIT BOARD (Foil side) Semiconductor Location Circuit No.JU, CR, T, KAB, G C40OOXOO C53XXXXO C62, 63XXOXX CB7, 8XXOXX D14XXOXX F2XXOXX Q4, 13XXOXX R62OOXOO R73XXOXX SW6XXOXX W1316XXOXX X: NOT USED O: USED / APPLICABLE Ref. No.Location D12H2 D13D2 IC7C2 Q3D2 Semiconductor Location ABCDEFGHIJKL YST-SW015 11 SCHEMATIC DIAGRAM 1 2 3 4 5 6 7 8 9 L.P.F. TIMER AUTO POWER ON/OFF B.A.S.S. H.P.F. R, T, K models R, T, K models R, T, K modelsU, C, A, B, G, J modelsU, C, A, B, G, J models L.P.F. POWER ON/OFF SUB POWER SUPPLY POWER SUPPLY REGULATOR REGULATOR REGULATOR VOLTAGE SELECTOR HIGH CUT STANDBY/ON VOLUME # All voltages are measured with a 10M/V DC electric volt meter. # Components having special characteristics are marked s and must be replaced with parts having specifications equal to those originally installed. # Schematic diagram is subject to change without notice. x: NOT USED O:USED / APPLICABLE 87654321 OUT1 Vcc +IN2 IN2 OUT2 +Vcc +IN1 IN1 IC1: NJM4558L Dual OP-Amp 1 8 IC2, 4, 7: PC4570HA Dual OP-Amp VccVo1-Vm1+Vm1VEE+Vm2-Vm2Vo2Vcc 123456789 +- 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 Relay drive circuit IC5: LB8555D Timer 1 VCC8DISCHARGE 7 CONTROL VOLTAGE5 THRESHOLD6 + TRIGGER GND 2 RESET4 + R SQ 1 48 OUTPUT 3 IC8: STK404-070 AF Power Amp 13245678910 R1 R4 R5 C1 C2 D1 TR3 TR5 R3R6 TR4 SUB R2 TR1 TR2 TR6 TR7 TR8 1 10 VIN VOUT GND OUT COM IN IC9 NJM78L08A Voltage Regulator PIN CONNECTION DIAGRAM OF TRANSISTORS, DIODES AND ICS. 2SB1642 2SD2531 2SK3042SC46881SS133 MTZJ12.0C MTZJ15.0C MTZJ24.0B S1NB202SA970 2SA1015 2SC1815 2SC2878 2SC2240 D3SBA20NJM4558LNJM78L08APC4570HATA7317PSTK404-070LB8555D Anode Cathode + + EC B BC E BC E S G D PROTECTION LIMITER POWER AMP A.N.I.C L.P.F. INPUT 0 0 0 4.0 0 0 -14.5 6.8 8.0 0 1.4 0 1.3 2.4 2.4 5.4 8.0 1.4 6.7 8.0 0 6.7 4.0 0 14.6 0 0 0.1 1.9 0 0 0 0 0.6 7.4 8.0 0 -14.5 0 0 0 14.5 0 14.6 0 0 00 0 0 000 00 0 14.5 13.9 0.7 0 0 0 0 -14.6 25.7 0.6 3.0 1.3 0 1.1 -0.7 0 0 0 -0.7 0 38.9 -39.1 -1.1 1.21.8 14.6 -38.6 0 0.2 0.2 -13.9 0 1.1 6.16.7 35.814.6 -36.1 -15.1 0 0 15.1 -39.1 0 -14.5 13.6 13.6 0.1 8.0 0 13.70 6.4 6.5 0 0.1 6.7 38.9 0 15.1 -15.1 -7.9 -14.5 -14.5 14.6 0 0 0 0 14.6 -0.30 -1.8 0 0 -0.2 -14.6 0 0 0-0.2 0 AC 58.0 AC 12.9 C65 0.022 3.3K 2P 0.22 220/10 100K 100K Q15 DTA114ES VS82250VS82250VS82240KB00071KB00071 2A 125V2A 125V1.6A 125VT500mAL250V KB00071 T500mAL250V T500mAL250V YST-SW015 13 YST-SW015 I WARNING GComponents having special characteristics