Yamaha-Soavo-900-SW-Service-Manual电路原理图.pdf

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1、SERVICE MANUAL 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 no

2、t 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 ser

3、vice 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 establi

4、sh 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

5、 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

6、 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. IMPORTANT NOTICE 101027 SERVICE MANUAL REPAIR PROCEDURES / 修理手順 .1114 DC OFFSET

7、 ADJUSTMENT / DC調整 .1415 IC DATA .16 BLOCK DIAGRAM.17 PRINTED CIRCUIT BOARDS .1820 SCHEMATIC DIAGRAMS .2122 REPLACEMENT PARTS LIST.2334 REMOTE CONTROL .35 I CONTENTS TO SERVICE PERSONNEL .2 FRONT PANEL .3 REAR PANELS.35 REMOTE CONTROL PANEL.6 SPECIFICATIONS / 参考仕様 .6 DIMENSIONS .7 INTERNAL VIEW .7 D

8、ISASSEMBLY PROCEDURES / 分解手順 .810 Soavo-900SW SUBWOOFER SYSTEM 2006 YAMAHA CORPORATION. All rights reserved. This manual is copyrighted by YAMAHA and may not be copied or redistributed either in print or electronically without permission. 06.09 POWERSTANDBYSLEEP PHASE MEMORY PRESET HIGH CUT VOLUME 2

9、31 B.A.S.S. WH64300 Soavo-900SW 2 Soavo-900SW Soavo-900SW ITO SERVICE PERSONNEL 1. Critical Components Information Components having special characteristics are marked Z and must be replaced with parts having specifications equal to those originally installed. 2. Leakage Current Measurement (For 120

10、V 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 ohms shunted by 0.15F. GLeakage current must not exceed 0.5mA. GBe sure to test for leakage with

11、the AC plug in both polarities. AC LEAKAGE TESTER OR EQUIVALENT EQUIPMENT UNDER TEST INSULATING TABLE WALL OUTLET 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 m

12、ay 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 REASON WHATSOEVER! Avoid prolong

13、ed, 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. “CAUTION” “F1 : FOR CONTINUED PRO

14、TECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 12A, 125V FUSE.” CAUTION F1 : REPLACE WITH SAME TYPE 12A, 125V FUSE. ATTENTION F1 : UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE DE 12A, 125V. A V About Lead Free Solder / 無鉛 All of the P.C.B.s installed in this unit and solder joints are sol

15、dered 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 temperatu

16、re 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. 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。 3 Soavo-900SW Soavo-900SW I FRO

17、NT PANEL I REAR PANELS M U, C models 4 Soavo-900SW Soavo-900SW M R modelM T model M K modelM A model 5 Soavo-900SW Soavo-900SW M B, G modelsM L model M J model 6 Soavo-900SW Soavo-900SW I SPECIFICATIONS / 参考仕様 I REMOTE CONTROL PANEL POWERSTANDBYSLEEP PHASE MEMORY PRESET HIGH CUT VOLUME 231 B.A.S.S.

18、WH64300 Type / 型式. . . . . . . . . . .Advanced Yamaha Active Servo Technology II Output Power / 出力 100 Hz, 4 ohms, 10 % T.H.D . 600 W Input Sensitivity / 入力感度 (50 Hz, 600 W/4 ohms, L+R) INPUT (SP) . 1.2 V INPUT (PJ) . 70 mV Input Impedance / 入力 INPUT (SP) .2.2 k-ohms INPUT (PJ) .12 k-ohms Frequency

19、Response / 再生周波数帯域 . . . . . . . . . . .18 Hz to 160 Hz Driver / . . . . . . .25 cm (10”) cone woofer Magnetic shielding type Input Section / 入力部 INPUT 1. Speaker terminal INPUT 2, 3. RCA pin jack Operation Section / 操作部 Top Panel. STANDBY/ON switch, Volume control, H-CUT control, LED indicator Rear

20、 Panel.Power switch, Voltage selector (R, L models) Power Supply / 電源 電圧 U, C models.AC 120 V, 60 Hz R, L models . AC 110, 120, 220, 230-240 V, 50/60 Hz T model .AC 220 V, 50 Hz K model .AC 220 V, 60 Hz A model .AC 240 V, 50 Hz B, G models.AC 230 V, 50 Hz J model .AC 100 V, 50/60 Hz Power Consumptio

21、n / 消費電力 U, C, R, T, K, A, B, G, L models. 180 W J model . 120 W Standby Power Consumption / 待機消費電力 . 0.5 W (reference data) Dimensions (W x H x D) / 寸法 （幅高奥行） . 410 mm x 461 mm x 461.5 mm (16-1/8” x 18-3/16” x 18-3/16”) Weight / 質量 . 32 kg (70 lbs. 9 oz.) Finish / 仕上. . . . . . . . . . . . . . . .

22、. . . . . . . . . . . . . . . . . . . . . . . . . .Birch color (MN) Brown color (MB) Dark brown color (MD) Black color (BL) Accessories / 付属品 . Power cable x1, Remote control x1, Battery x2, Speaker cable (4 m) x1 (J model), Subwoofer cable (5 m) x1 (J model) * Specifications subject to change witho

23、ut notice. U . USA model C . Canadian model R . General model T . Chinese model K . Korean model A . Australian model B . British model G . European model L . Singapore model J. Japanese model 7 Soavo-900SW Soavo-900SW I DIMENSIONS Unit : mm (inch) 410 (16-1/8) 461 (18-3/16) 457 (18) 410 (16-1/8) 4

24、(3/16) 30 (1-3/16) 21.5 (7/8) 461.5 (18-3/16) I INTERNAL VIEW q DRIVER w MAIN (4) P.C.B. e MAIN (3) P.C.B. eqwrty uio!0 r DIGITAL P.C.B. t MAIN (2) P.C.B. y MAIN (1) P.C.B. u MAIN (7) P.C.B. (R, L models) i POWER TRANSFORMER o MAIN (6) P.C.B. !0 MAIN (5) P.C.B. 8 Soavo-900SW Soavo-900SW I DISASSEMBL

25、Y PROCEDURES / 分解手順 (Remove parts in the order as numbered.) Disconnect the power cable from the AC outlet. 1. Removal of Front Grille Assy *The front grille assy is fixed to the cabinet with dowels at 5 locations. As a flatblade screwdriver is used for removal, use special care not to cause damage

26、to the cabinet assy. a. Using the flatblade screwdriver inserted in the gap between the front grille assy and the cabinet assy (bottom side first), push up the front grille assy. (Fig. 1) b. Remove the front grille assy by lifting a metalblade up. (Fig. 1) *When installing the front grille assy, app

27、ly quick-drying bond or the like to dowels and then fit them into dowel holes for secure installation. (The front grille assy will come off easily if its dowels are fitted into dowel holes without applying quickdrying bond or the like.) （番号順部品取外。 ） AC 電源、電源抜。 1. ASSY 外方 ASS Y 5 箇所固定 。 取外際、 ASS Y傷付十

28、分注意。 a. 底側等差込 ASSY 押上。 (Fig. 1) b. 徐等押上、 ASSY取 外。 (Fig. 1) ASS Y取付場合、 ASS Y 速乾塗取付。 （ ASS Y 速乾塗 差込、簡単外。 ） Fig. 1 Front Grille Assy ASS Y Driver q Flatblade Screwdriver Dowels Metalblade Dowels Cabinet Assy ASS Y 9 Soavo-900SW Soavo-900SW 2. 外方 a.q本外、取外 。 (Fig. 1) 取外六角(4 mm)使用。 b. 端子外。 (Fig. 1) 3. ASS

29、Y 外方 a.w12本外、ASSY取外 。 (Fig. 2) 取外箇所、 矢印 （） 印刷。 組立際、損傷無確認、 漏発生組立。 b. CB4, CB5, CB15-17, CB20, CB22 外。 (Fig. 3) 2. Removal of Driver a. Remove 8 screws (q) and then remove the driver. (Fig. 1) *Use an allen wrench (4mm) to unscrew the driver. b. Disconnect the connector connected to the terminal of th

30、e driver. (Fig. 1) 3. Remove of Rear Panel Assy a. Remove 12 screws (w) and then remove the rea panel assy. (Fig. 2) *Arrow marks () are printed to identify the screws to be removed. *When assembling the rear panel assy, check to ensure that packing is not damaged so as to prevent air leakage from o

31、ccurring. b. Remove CB4, CB5, CB15 (U, C, T, K, A, B, G models), CB16-17, CB20 and CB22. (Fig. 3) c. Remove CB13 and CB14. (R, L models) (Fig. 3) Fig. 2 Fig. 3 w Rear Panel Assy ASS Y CB20 CB5 CB16 CB17 CB15 CB14CB13 CB4CB22 MAIN (2)MAIN (1) DIGITAL MAIN (5)MAIN (6)MAIN (7) (R, L models) (U, C, T, K

32、, A. B, G, J models) 10 Soavo-900SW Soavo-900SW 4. ASSY 外方 e 4 本外、 ASSY 取外 。 (Fig. 4) 5. 電源外方 r 4 本外、電源取外。 (Fig. 4) P.C.B. 場合 電源接続部持上 、 ASSY 下枕木敷。 分解際外元通接続 。 4. Removal of Front Panel Assy Remove 4 screws (e) and then remove the front panel assy. (Fig. 4) 5. Removal of Power Transformer Remove 4 scr

33、ews (r) and then remove the power transformer. (Fig. 4) When Checking the P.C.B. To help lift the power cable connecting section of the rear panel, put the supporting wood under the rear panel assembly. Connect all the connectors removed during disassembly back to the original positions. Fig. 5 Supp

34、orting Wood 枕木 Fig. 4 r e Power Transformer 電源 Front Panel Assy ASS Y 11 Soavo-900SW Soavo-900SW I REPAIR PROCEDURES / 修理手順 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

35、. C77 and C80 on the MAIN (1) P.C.B. are dangerous, for a high voltage is retained there even after the power is turned off. Before the repair work, connect about 5k-ohm/10W resistor between terminals of the capacitor to forced discharging. After the repair work, also perform forced discharging by c

36、onnecting about 5k-ohm/10W resistor between terminals of the capacitor. Replacing Faulty Parts Described below is the method to diagnose trouble of the major parts. FET (Q108, 109, 110, 111) If a trouble exists, the D-S resistance value should be close to 0-ohm. (The normal value should be 1k-ohm or

37、 more.) 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 。 MAIN (1) P.C.B. C77 C80 電源OFF 後高 電圧維持危険。 修理前5k/10W程度抵抗端子間 接続強制放電。 、修理後同様5k/10W程度抵抗 端子間接続強制放電。 故障部品交換 主部品故障判定方法下記示。 FET (Q108, 109, 110, 111) 故障場合、D-S 間抵抗値 0 近値示 。 (正常値1k 以上示。 ) GD S D S D S D S D S DIGITAL P.C.B. (side A) 112 1324 18 9 16 18 916 1 8 5 4 1

38、2 Soavo-900SW Soavo-900SW G Operation Check Caution: When taking measurement at the following points for operation check, do not use a voltmeter or the like which may cause a failure. G 動作確認 注意） 動作場合、 下記箇所電圧計測定 。故障原因。 必要 DC 電圧計 信号発生器(100Hz, 正弦波) 4 負荷抵抗 Required Tools Voltmeter Signal generator (100H

39、z, Sine wave) 4-ohm load resistor Oscilloscope 1324 18 9 16 18 916 5 4 Pin 10 Pin 14 Pin 10 Pin 14 DIGITAL P.C.B. (side A) DIGITAL P.C.B. (side B) I C102 10 I C102 14 I C103 10 I C103 14 Q108 Q109 Q110 Q111 Q125 Q125 Q126 Q126 Q127 Q127 Q128 Q128 D115 118 R166 169 Pin 10 of IC102 Pin 14 of IC102 Pin

40、 10 of IC103 Pin 14 of IC103 Gate of Q108 Gate of Q109 Gate of Q110 Gate of Q111 Base of Q125 Emitter of Q125 Base of Q126 Emitter of Q126 Base of Q127 Emitter of Q127 Base of Q128 Emitter of Q128 D115118 R166169 13 Soavo-900SW Soavo-900SW 1. 出力電圧確認 a. MAIN (1) P.C.B. CB22 外、無負荷。 b. 本機電源AC 接続。 c. 本機

41、“主電源 入/切”“入”、 “STANDBY/ ON”押。 d. SP GND 間SP GND 間DC 電圧測定 。 正常値 SP GND 間：+50V 5V SP GND 間：+50V 5V 1. Output Voltage Check a. Disconnect CB22 of the MAIN (1) P.C.B. so that no load is applied. b. Connect the power cable of this unit to the AC outlet. c. Set the “POWER ON/OFF” key of this unit to the “

42、ON” position and press the “STANDBY/ON” key. d. Measure the DC voltage between SP+ and GND and also between SP and GND. Normal value between SP+ and GND: +50V 5V between SP and GND: +50V 5V e. 本機“主電源 入/ 切”“切”、電源 AC 抜。 2. 出力波形確認 a. 信号発生器出力信号 INPUT 3 L/MONO 接続 。 b. 接続端子外 、4 負荷抵抗接続。 c. 信号発生器電源入、正弦波100H

43、z出力 最小設定。 e. Set the “POWER ON/OFF” key of the main unit to the “OFF” position and disconnect the power cable from the AC outlet. 2. Output Waveform Check a. Connect the output signal from the signal generator to INPUT 3 L/MONO. b. Disconnect the connector connected to the speaker unit and connect i

44、t to the 4-ohm load resistor. c. Turn on the power of the signal generator and set for the sine wave, 100Hz and output level minimum. SPSP+ GND MAIN (1) P.C.B. (side A) SP+ SP GND 14 Soavo-900SW Soavo-900SW I DC OFFSET ADJUSTMENT / DC調整 d. 本機電源AC 接続。 e. “主電源 入/切” ON、“STANDBY/ON” 押。 f. SPSP間出力波形測定 。 g. 信号発生器出力Soavo-900SW 徐上、 出力波形測定 。 h. 出力 50Vp-p 出力波形歪、正常 判断。 i. 本機“主電源 入/ 切”“切”、電源 AC 抜。 d. Connect the power c