YAMAHA YST-SW005 维修电路原理图.pdf

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1、YST-SW005 YST-SW005 SERVICE MANUAL SUBWOOFER SYSTEM YST-SW005 100799 I CONTENTS TO SERVICE PERSONNEL . 1 SPECIFICATIONS / 参考仕様. 1 INTERNAL VIEW / 各部名称 . 2 BLOCK DIAGRAM / . 2 REAR PANELS / . 3 DISASSEMBLY PROCEDURES / 分解手順 . 4 CONFIRMATION OF AUTO STANDBY OPERATION / AUTO STANDBY動作確認. 5 PRINTED CIRC

2、UIT BOARD / 図 . 67 SCHEMATIC DIAGRAM / 総回路図 . 8 PARTS LIST / 部品表. 915 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 Produc

3、ts, 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 specif

4、ied. 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, certifica

5、tion 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 striv

6、ing 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 compon

7、ents. 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. P.O.Box

8、 1, Hamamatsu, Japan YST-SW005 YST-SW005 1 WALL OUTLET EQUIPMENT UNDER TEST AC LEAKAGE TESTER OR EQUIVALENT INSULATING TABLE 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)

9、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!

10、 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. I TO SERVICE PERSON

11、NEL 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 t

12、hat all exposed conductive surfaces are properly insulated from supply circuits. GMeter impedance should be equivalent to 1500 ohm shunted by 0.15F. GLeakage current must not exceed 0.5mA. GBe sure to test for leakage with the AC plug in both polarities. I SPECIFICATIONS / 参考仕様 Type. Advanced Yamaha

13、 Active Servo Technology 型式 . Output Power / 出力 J, U, C models .55 W/100 Hz, 5 10% T.H.D. R, T, K, A, B models.50 W/100 Hz, 5 10% T.H.D. Input Sensitivity / 入力感度 (100 Hz, 50 W/5, L+R) INPUT 1 (SP) . 0.7 V INPUT 2 (PJ). 30 mV Input Impedance / 入力 INPUT 1 (SP) .2.2 k INPUT 2 (PJ).12 k Frequency Respon

14、se / 再生周波数帯域 30 Hz200Hz Driver / .16 cm (6.5) cone magnetic shielding type Input Section / 入力部 INPUT 1.Speaker terminal INPUT 2. RCA pin jack Power Supply / 電源 J model. AC100V, 50/60Hz U, C models . AC120V, 60Hz R, T, K models . AC110/120/220/240V, 50/60Hz A model . AC240V, 50Hz B, G models . AC230V

15、, 50Hz Power Consumption / 消費電力 U, C, R, T, K, A, B, G models. 60 W J model. 32 W Standby Power Consumption / 待機消費電力 . 0.8 W Dimensions / 寸法 (W x H x D) . 200 x 365 x 375 mm (7-7/8 x 14-3/8 x 14-3/4) Weight / 重量 . 8.5 kg (18 lbs. 12 oz.) Finish / 仕上 Black color / Cherry color .All models Silver colo

16、r. U, C models Accessory / 付属品 U, C, R, T, K, A, B, G models. Nonskid Pad x 4 J model. （4m） 2、 用 （3m） 1、 滑止 4 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 Specifications are subject to

17、change without notice due to product improvements. 仕様外観、 改良予告 変更 。 YST-SW005 YST-SW005 1 234 5687 LIMITER IC3 REGULATOR POWER SUPPLY D1 SUB POWER SUPPLY D11 Q11 T1 T2 D15 D17 Q15 D9 +15 +B -15 -B Q9 Q10 RY2 F1 PROTECTION 0.1 SPEAKER RY1 D6 2 IC2 1 3 2 IC7B IC7A L.P.F 12dB/oct 7 5 6 VR1 VOLUME L.P.F

18、6dB/oct 7 6 5 IC1B IC1A 1 2 3 MUSIC SENSOR IC4 TIMER IC5 + 8 4 6 7 3 AUTO STANDBY SW2 OFF AUTO POWER ON/OFF CIRCUIT Q5, 6, 7, 8 D4,D5,D22,D23 + - + - + - - + - + - + + - - + L R L R L R INPUT 1 OUTPUT INPUT 2 Q12 R60 C46 POWER AMP 4 H.P.F 12dB/oct H L IC9 REGULATOR Q13, 14 D16 R, T ONLY REGULATOR PO

19、WER SW3 A.N.I.C IC10, Q16 L.P.F 6dB/oct 1 10 SW1 HIGH LOW 200 (7-7/8) Unit : mm (inch) 365 (14-3/8) 375 (14-3/4) 335 (13-3/16)8 (5/16) 32 (1-1/4) I INTERNAL VIEW / 各部名称 2 1 MAIN P. C. B. (3) 2 MAIN P. C. B. (2) 3 MAIN P. C. B. (1) 4 MAIN P. C. B. (6) DIMENSIONS / 寸法図 5 MAIN P. C. B. (4) 6 MAIN P. C.

20、 B. (5) 7 Power Transformer 8 Driver I BLOCK DIAGRAM / YST-SW005 YST-SW005 010 HIGH CUT INPUT2 INPUT1 FROM AMPLIFIER OUTPUT ON MODEL NO. YST-SW005 MADE IN CHINA SER. NO. 230 VOLTS 60 WATTS 50Hz OFF TO SPEAKERS /MONO AUTO STANDBY VOLUME HIGH LOW HIGH LOW OFF RL RL + RL + POWER 010 HIGH CUT INPUT2 INP

21、UT1 FROM AMPLIFIER OUTPUT ON MODEL NO. YST-SW005 MADE IN CHINA SER. NO. 240 VOLTS 60 WATTS 50Hz OFF TO SPEAKERS /MONO AUTO STANDBY VOLUME HIGH LOW HIGH LOW OFF RL RL + RL + POWER N89 010 HIGH CUT INPUT2 INPUT1 FROM AMPLIFIER OUTPUT VOLTAGE SELECTOR 220V-240V 110V-120V ON MODEL NO. YST-SW005 SER. NO.

22、 110 - 120/220 - 240 VOLTS 60 WATTS 50/60Hz OFF TO SPEAKERS /MONO AUTO STANDBY VOLUME HIGH LOW HIGH LOW OFF RL RL + RL + POWER R model 010 HIGH CUT INPUT2 INPUT1 FROM AMPLIFIER OUTPUT ON MODEL NO. YST-SW005 MADE IN CHINA SER. NO. 120 VOLTS 60 WATTS 60Hz OFF TO SPEAKERS /MONO AUTO STANDBY VOLUME HIGH

23、 LOW HIGH LOW OFF RL RL + RL + POWER ATTENTION:RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR. WARNING:TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK. DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE. CUS 010 入力 2 入力 1 （） 出力 入 MODEL NO. YST-SW005 MADE IN CHINA SER. NO. 100 V 32 W 50/60Hz 切 （） 左/右 右左 右左 感度 高

24、低 高 低 切 RL RL + + 主電源 PS E 3 I REAR PANELS / U, C models B, G models R, T, K models A model J model YST-SW005 YST-SW005 3 CB5 Fig. 3 1 2 2 2 2 1 1 1 Fig. 2Fig. 1 4 I DISASSEMBLY PROCEDURES / 分解手順 (Remove parts in the order as numbered.) G For exchanging the driver unit 1. Removal of Front Grille The

25、 front grille is fixed to the cabinet with dowels at 6 locations. As a screwdriver (for slotted head screw) is used for removal, use special care not to cause damage to the cabinet. a. Apply the block to the rear panel so as to avoid damage to the Terminal of the rear panel. b. Use the screwdriver i

26、nserted in the gap between the front grille and the cabinet (bottom side first), push up the front grille. (Fig. 1) c. Remove the front grille by lifting it up. (Fig. 1) 2. Removal of Driver unit and Replacement of LED a. Remove 4 screws (1) in Fig. 2, and remove the Driver unit. b. Disconnect the c

27、ord connected to the Driver unit. c. Remove 4 screws (2) and pull out the port section forward. LED can then be replaced. 交換 1. 外方 本体6箇所固定。 取 外際、 本体傷付 十分注意 。 a. 接続端子保護 枕木本体 。 b. 下側 間2箇所 。 間 差込押上。（Fig. 1） c. 上側 押上、 外 。（Fig. 1） 2. 外方、 LED交換 a. 4本外、 外。（Fig. 2） b. 接続 。 c. 4本外、 部分手前引出LED交 換 。 G For repai

28、ring P.C.B. 1. Removal of Rear Panel Remove 14 screws (2) in Fig. 3, and remove the rear panel. At this time, disconnect the connector CB5 of MAIN P.C.B. (1). *When reassembling the rear panel which has been removed from the rear panel, be sure to replace the packing to prevent the air leakage. 2. P

29、.C.B. Operation Check Connect the connector CB5 of MAIN P.C.B. (1). P.C.B.修理 1. 外方 14本外、 外。（Fig. 3） MAIN P.C.B. （1） CB5。 外 場合、 漏防組立 時交換 。 2. P.C.B.動作 MAIN P.C.B. （1） CB5接続。 YST-SW005 YST-SW005 Apply rapid cures bond Fig. 4 速乾塗布 5 I CONFIRMATION OF AUTO STANDBY OPERATION Setting 1) Turn off the power

30、 switch. 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. (1). 3) Connect the output signal from the signal generator to the INPUT 2 of the unit. 4) Set the signal generator for the sine wave of 100Hz, 8mV. 5) Turn on the pow

31、er switch. Confirmation 1) Set the AUTO STANDBY switch to the LOW position. AUTO STANDBY HIGH LOW OFF 2) Turn on the POWER switch. The display LED lights up (green) and its color changes to red after 5 to 10 seconds. 3) Turn off the POWER switch. The display LED goes off. 4) Set the AUTO STANDBY swi

32、tch to the HIGH position. AUTO STANDBY HIGH LOW OFF 5) Turn on the POWER switch. The display LED lights up (green) and its color remains unchanged even after time have elapsed. 6) Turn off the POWER switch. The display LED goes off. After confirmation 1) Turn off the power switch. 2) Disconnect the

33、10k resistor connected to both ends of R60. AUTO STANDBY動作確認 設定 1） 主電源OFF。 2） 動作確認時間短縮、 MAIN P.C.B. （1） R60 両端10k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、 100Hz、 8mV設定。 5） 主電源ON。 確認 1） 感度 低 合。 感度 高 低 切 2） 主電源 入。 表示LED点灯 （緑色） 。 510秒後、 表示LED赤色 変 。 3） 主電源 切。 表示LED消灯。 4） 感度 高 合。 感度 高 低 切 5） 主電源 入。 表示LE

34、D点灯 （緑色） 。 時間経過表示LED 色変化。 6） 主電源 切。 表示LED消灯。 確認終了後 1） 主電源OFF。 2） R60両端取 付抵抗外。 G Precaution for installation of power cord After connecting the power cord, be sure to apply the rapid cures bond (such as 5 minutes epoxy) at the cord stopper to prevent the air leakage as shown in Fig. 4. 電源 取付時注意 電源 接続

35、後、 漏防 速乾 （5分硬化） 塗布 。 （Fig. 4） Glue List PlaceName Cord stopper5 minutes epoxy or 2051 (Revertex Finewaters SDN.BHD.) or VYLOK 917DH (National Starch & Chemical (M) SDM.BHD.) YST-SW005 ABCDE 1 2 3 4 5 6 7 YST-SW005 220V-240V 110V-120V VOLTAGE SELECTOR Ref. No.Location Q5C6 Q6C6 Q7C6 Q8C6 Q9C4 Q10C5 Q

36、11B2 Q12B5 Q13B3 Q14B3 Q15B4 Q16B7 D1D4 D2C4 D3C5 D4C6 D5C6 D6C6 D7C7 D8C7 D9B5 D10B2 D15B4 D16B4 D19B7 D20B7 D21B6 D22C6 D23C6 IC2D6 IC3C7 IC4B6 IC5B5 IC9B4 IC10B7 Semiconductor Location R, T, K models WH BE YE RE WH RE To MAIN (4) To MAIN (5) To MAIN (6) From MAIN (2) From MAIN (2) MAIN P. C. B. (

37、1) SPEAKER E +V2 +V1 E SWL SWH2 SWH1 S0 MAIN +15 -15 From MAIN (5) SUBO E R60 1k AUTO STANDBY OPERATION 6 I PRINTED CIRCUIT BOARD (Component side) / 図（部品面） YST-SW005 ABCDE 1 2 3 4 5 6 7 LOW HIGH OFF LOW HIGH HIGH CUT VOLUME POWER INPUT1 FROM AMPLIFIER AUTO STANDBY INPUT2OUTPUT TO SPEAKERS Ref. No.Lo

38、cation D11D6 D17C2 IC1B4 IC7D3 Semiconductor Location From MAIN (1) From MAIN (1) From MAIN (1) To MAIN (1) To MAIN (1) MAIN P. C. B. (6) MAIN P. C. B. (3) MAIN P. C. B. (4) MAIN P. C. B. (5) MAIN P. C. B. (2) E +V2 +V1 -15 +15 MAIN S0 SWH1 SWH2 SWL E WH BE SUBO E RE YE 7 I PRINTED CIRCUIT BOARD (Co

39、mponent side) / 図（部品面） A 1 2 3 4 5 6 7 8 9 BCDEFGHIJKL YST-SW005 # All voltage 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

40、subject to change without notice. 電圧、内部抵抗10M電圧計測定。 s印部品、安全性確保部品示。部 品交換必要場合、記載 部品使用。 本回路図標準回路図。改良予告変更 。 8 SCHEMATIC DIAGRAM IC9 : NJM78L08AV Voltage Regulator IC5 : KIA555P Protect IC3 : PC1237HA Protect IC2 : STK404-050AF AF Power Amp. IC1, 4, 7, 10 : NJM4558D OP Amp. BCE BCE PIN CONNECTION DIAGRAM

41、OF TRANSISTORS, DIODES AND ICS. 2SD2531 2SB1642 2SK3042SC4688RBV-402S1NB202SC1815 2SA1015 2SC2240 EC B + + 1N4148 MTZ15C MTZJ24B MTZJ12C Anode Cathode PC1237HANJM4558D KIA555P NJM78L08ASTK404-050AF 1 8 OUT COM IN SG D 1 10 VIN VOUT GND GND 64123 TRIGGER OUT RESET REFERENCE VOLTAGE THRESHOLD DISCHARG

42、E VCC 78 + FLIP- FLOP + 5 RRR 1 2 543 78 6 Overload detect Mid-point potential detect Flip flop circuit Vcc on mute AC OFF detect Latch / automatic return select Relay drive circuit GND Vcc 12345678910 R1 R4 R5 C1 C2 D1 TR3 TR5 R3R6 TR4 SUB R2 TR1 TR2 TR6 TR7 TR8 + + OUT1 IN1 +IN1 Vcc +Vcc OUT2 IN2

43、+IN2 1 2 3 4 8 7 6 5 1 48 0 0 0 0 0 0 14.3 -14.3 0 0 0 0 0 0 0 0 0 0 0 00.5 0.8 0 0 0 0 0 0 0 0 0 000 13.2 -13.2 0 0 13.2 -13.2 -1.5 0 0 0.1 0.1 0 -32.5 14.3 1.2 -1.2 -33.2 33.2 0 0 0 2.9 0 0.8 2.2 3.5 3.9 6.6 7.9 5.3 7.9 0 0.1 0.6 0 33.2 AC25.2 14.8 -14.8 -33.2 13.4 13.4 13.47.9 7.9 7.9 3.9 3.9 3.9

44、 3.9 3.9 3.9 13.4 0 0 14.3 14.3 -14.3 -14.3 AC12.2 AC25.2 R, T, K models POWER SUPPLY AUTO POWER ON/OFF CIRCUIT PROTECTION J, U, C, A, B, G models WH RE BE BEYE YEYE RERE WH MAIN (2) MAIN (1) MAIN (3) MAIN (4) MAIN (5) MAIN (6) LIMITTER POWER AMP. YST-SW005 YST-SW005 9 I WARNING GComponents having s

45、pecial 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 page. 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 / 部品表 I ELECTRICAL PARTS / 電気部品 C.A.EL.CHP: CHIP ALUMI.ELECTR