Yamaha-DXSseries-spk-sm 电路图 维修手册.pdf

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1、HAMAMATSU, JAPAN DXS12: 201202-92400 DXS15: 201202-102900 PA012042 SERVICE MANUAL Copyright (c) Yamaha Corporation. All rights reserved. PDF 12.03 SPECIFICATIONS（総合仕様） . 3 PANEL LAYOUT（） . 4 CIRCUIT BOARD LAYOUT（） . 5 DIMENSIONS（寸法図） . 7 DISASSEMBLY PROCEDURE（分解手順） . 8 LSI PIN DESCRIPTION（LSI 端子機能表）

2、 . 18 CIRCUIT BOARDS（基板図） . 19 TEST PROGRAM（） . 27 INSPECTIONS（検査） . 37 UPDATING（） . 46 PARTS LIST BLOCK DIAGRAM（） LEVEL DIAGRAM（） CIRCUIT DIAGRAM（回路図） CONTENTS（目次） DXS12DXS15 RadioFans.CN 收音机爱 好者资料库 DXS12/DXS15 2 WARNING Components having special characteristics are marked and must be replaced with

3、 parts having specifi cation equal to those originally installed. 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,

4、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

5、. For these reasons, we advise all Yamaha product owners that all service required should be performed by an authorized Yamaha Retailer or the appointed service representative. IMPORTANT : This presentation or sale of this manual to any individual or firm does not constitute authorization certificat

6、ion, recognition of any applicable technical capabilities, or establish a principal-agent relationship of any form. The data provided is belived to be accurate and applicable to the unit(s) indicated on the cover. The research engineering, and service departments of Yamaha are continually striving t

7、o improve Yamaha products. Modifications are, therefore, inevitable and changes in specification 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

8、 components. Discharge any static electricity your body may have accumulated by grounding yourself to the ground bus in the unit (heavy gauge black wires connect to this bus.) IMPORTANT : Turn the unit OFF during disassembly and parts replacement. Recheck all work before you apply power to the unit.

9、 WARNING: This product contains chemicals known to the State of California to cause cancer, or birth defects or other reproductive harm. DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON WHAT SO EVER! Avoid prolonged, unprotected contact between solder and

10、 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. IMPORTANT NOTICE FOR THE UNITED KINGDOM Connecting the Plug and Cord WARNI

11、NG: THIS APPARATUS MUST BE EARTHED IMPORTANT. The wires in this mains lead are coloured in accordance with the following code: GREEN-AND-YELLOW : EARTH BLUE : NEUTRAL BROWN : LIVE As the colours of the wires in the mains lead of this apparatus may not correspond with the coloured markings identifyin

12、g the terminals in your plug proceed as follows: The wire which is coloured GREEN-and-YELLOW must be connected to the terminal in the plug which is marked by the letter E or by the safety earth symbol or colored GREEN or GREEN-and-YELLOW. The wire which is coloured BLUE must be connected to the term

13、inal which is marked with the letter N or coloured BLACK. The wire which is coloured BROWN must be connected to the terminal which is marked with the letter L or coloured RED. This applies only to products distributed by Yamaha Music U.K. Ltd. (3 wires) 印部品、安全維持重要部品。交換場合、安全必指定部品使用。 RadioFans.CN 收音机爱

14、 好者资料库 3 DXS12/DXS15 SPECIFICATIONS（総合仕様） GeneralDXS12DXS15 System TypePowered Subwoofer, Band-pass Type Frequency Range (-10dB)47Hz 160Hz45Hz 160Hz Coverage Angle Crossover Type Crossover Frequency Measured Maximum SPL (peak) IEC noise1m 131dB SPL132dB SPL TransducerDXS12DXS15 LFDiameter12 Cone15 C

15、one Voice coil2.52.5 MagnetFerrite HFDiaphragm Type Magnet EnclosureDXS12DXS15 Material, Finish, ColorWood, Paint, Black Floor Monitor Angle Dimensions (WxHxD, with rubber feet) 397563594 mm (15-5/8 x 22-1/8 x 23-3/8) 478618624 mm (18-7/8 x 24-3/8 x 24-1/2) Net Weight33.0kg (72.8lbs)38.0kg (83.8lbs)

16、 HandlesMetal (Side x 2) Pole Socket35mm (Top) Rigging points Optional Accessory (U-bracket) Amplifi erDXS12DXS15 Amplifi er TypeClass-D Power Rating *1Dynamic950W Continuous600W CoolingFan cooling, 4 speeds AD/DA24bit 48kHz sampling Signal Processing48bit (Accumulator: 76bit) HPF/LPF80, 100, 120Hz

17、24dB/oct LPF DSP presetD-XSUB: BOOST, XTENDED-LF, OFF ProtectionSpeakerClip limiting, Integral Power Protection, DC-fault Amplifi erThermal, Output over current Power supplyThermal, Output over voltage, Output over current ConnectorsInputINPUT: XLR3-31 x 2 OutputTHRU: XLR3-32 x 2 (Parallel with INPU

18、T) Input ImpedanceINPUT110k INPUT2, 3 Input Sensitivity (LEVEL: Maximum) INPUT1+1dBu INPUT2, 3 Input Sensitivity (LEVEL: Center) INPUT1+11dBu INPUT2, 3 Maximum Input LevelINPUT1+24dBu INPUT2, 3 ControlsLEVEL, POLARITY, LPF, D-XSUB, FRONT LED DISABLE, POWER Idle Power Consumption35W 1/8 Power Consump

19、tion120W Power Requirements100V 240V, 50Hz/60Hz 0dBu is referenced to 0.775Vrms. *1 Power rating (120V, 25C). This is total value of individual output power. Included Accessories AC power cord Owners manual 付属品 電源 取扱説明書 RadioFans.CN 收音机爱 好者资料库 DXS12/DXS15 4 PANEL LAYOUT（） ? ? ? ? ? ? ? ? ? ? ? ? ? R

20、ear panel（） q INPUT jacks w THRU jacks e LEVEL control r LIMIT indicator t SIGNAL indicator y PROTECTION indicator u POWER indicator i FRONT LED DISABLE switch o POLARITY switch !0 D-XSUB switch/indicator !1 LPF switch !2 AC IN socket !3 Power switch q INPUT 端子 w THRU 端子 e LEVEL r LIMIT t SIGNAL y P

21、ROTECTION u POWER i FRONT LED DISABLE o POLARITY !0 D-XSUB !1 LPF !2 AC IN 端子 !3 電源 5 DXS12/DXS15 CIRCUIT BOARD LAYOUT（） ? ? ? (正面)? (右側面)? (背面) ? (正面)? (右側面)? (背面) ? （ （） ） ? （ Ass y） ? （ Ass y） ? （ （） ） ? ? DXS12/DXS15 6 ?（Ass y） ? （DC ） ? ? ? ? ? ? 7 DXS12/DXS15 DIMENSIONS（寸法図） 478 618 624 397 56

22、3 594 DXS12DXS15 Unit（単位）: mmUnit（単位）: mm 8 DXS12/DXS15 DISASSEMBLY PROCEDURE（分解手順） A. Disassembly of DXS12/DXS15 A-1. Metal Grille Assembly (Time required: About 1 minute) A-1-1 Remove the eight (8) screws marked 130. The metal grille assembly can then be removed. (Fig. A-1) * When installing the m

23、etal grille assembly, fi rst tighten the four (4) priority screws as shown in Fig. A-1. ? （優先） ? （優先） ? ? ? （ Ass y） ? (図、DXS12。) A-2. LED Panel Assembly, LED Circuit Board (Time required: About 2 minutes) A-2-1 Remove the metal grille assembly. (See procedure A-1.) A-2-2 Remove the two (2) screws m

24、arked 60A. The LED panel assembly can then be removed. (Fig. A-2) A-2-3 Remove the two (2) screws marked 30. The LED circuit board can then be removed from the LED panel sub assembly. (Fig. A-3) * When installing the LED panel assembly, check the direction. (Fig. A-2) A-3. Port Board Assembly (Time

25、required: About 3 minutes) A-3-1 Remove the metal grille assembly. (See procedure A-1.) A-3-2 Remove the LED panel assembly. (See procedure A-2-2.) A-3-3 Remove the twelve (12) screws marked 19. The port board assembly can then be removed. (Fig. A-4) A. DXS12/DXS15 分解 A-1. Assy（所要時間：約 1 分） A-1-1 130

26、 8 本外、 Assy 外。 （図 A-1） Assy 取付、図示優先 4 本先締。 （図 A-1） Fig. A-1 （図A-1） A-2. LED Assy、LED （所要時間：約 2 分） A-2-1 Assy 外。 （A-1 項参照） A-2-2 60A 2 本外、LED Assy 外。 （図 A-2） A-2-3 30 2 本外、LED SUB Assy LED 外。 （図 A-3） LED Assy 取付、上下方向確認 。 （図 A-2） A-3. 板 Assy（所要時間：約 3 分） A-3-1 Assy 外。 （A-1 項参照） A-3-2 LED Assy 外。 （A-2-2

27、 項参照） A-3-3 19 12 本外、板 Assy 外 。 （図 A-4） 9 DXS12/DXS15 19 19 PORT BOARD ASSEMBLY （板 Ass y） This figure shows the DXS12. (図、DXS12。) ? （上側） ? （上下方向確認。 ） ? （LED Ass y） ? ? (図、DXS12。) Fig. A-2 （図A-2） A-4. Speaker (Woofer) (Time required: About 5 minutes) A-4-1 Remove the metal grille assembly. (See proce

28、dure A-1.) A-4-2 Remove the LED panel assembly. (See procedure A-2-2.) A-4-2 Remove the port board assembly. (See procedure A-3.) A-4-3 Remove the eight (8) screws marked 40. The speaker (woofer) can then be removed. (Fig. A-5, Fig. A-6) * When installing the speaker (woofer), fi rst tighten the fou

29、r (4) priority screws in order as shown in Fig. A-5. A-4-4 Remove the LFSPOUT connector assembly (red/black) attached to the speaker (woofer) terminal. (Fig. A-5, Fig. A-7) * The speaker (woofer) is heavy. Be careful not to drop it. Fig. A-4 （図A-4） ? ? ? （LED Ass y） ? （LED SUB Ass y） Fig. A-3 （図A-3）

30、 A-4. （）（所要時間：約 5 分） A-4-1 Assy 外。 （A-1 項参照） A-4-2 LED Assy 外。 （A-2-2 項参照） A-4-2 板 Assy 外。 （A-3 項参照） A-4-3 40 8 本外、（） 外。 （図 A-5、図 A-6） （）取付、優先 4 本図示順番先締。 （図 A-5） A-4-4 （）端子取付 LFSPOUT 束線（赤黒）外。 （図 A-5、図 A-7） （）重量、落下 様注意。 10 DXS12/DXS15 A-5. Amp Assembly (Time required: About 3 minutes) A-5-1 Remove th

31、e twelve (12) screws marked 60B. (Fig. A-8) * When installing the amp assembly, fi rst tighten the two (2) priority screws in order as shown in Fig. A-8. A-5-2 Loosen the two (2) screws for removing the amp assembly. (Fig. A-9) * Loosen only ! Never remove these screws. Tighten these screws when ins

32、talling the amp assembly. (Fig. A-9) A-5-3 Hold the two (2) screws for removing the amp assembly and then remove the amp assembly carefully. (Fig. A-9) A-5. Assy（所要時間：約 3 分） A-5-1 60B 12 本外。 （図 A-8） Assy 取付、優先 2 本図 示順番先締。 （図 A-8） A-5-2 Assy 取外用 2 本緩。 （図 A-9） 緩、外注意 。 Assy 取付時、 締。 （図 A-9） A-5-3 Assy 取

33、外用 2 箇所持、慎 重 Assy 外。 （図 A-9） RED MARKING （赤） LFSPOUT CONNECTOR ASSEMBLY RED (+) (LFSPOUT 束線 赤 (+) LFSPOUT CONNECTOR ASSEMBLY BLACK () (LFSPOUT 束線 黒 () SPEAKER (WOOFER) （ （） ） Fig. A-7 （図A-7） Fig. A-6 （図A-6） 40 40 40 40 SPEAKER (WOOFER) ( （） ） ? ? ? ? : PRIORITY SCREW （優先） This figure shows the DXS12

34、. (図、DXS12。 ) Mark shows terminal direction of speaker (woofer). （ 印、 （） 端子方向示。 ） Fig. A-5 （図A-5） ? (図、DXS12。) ? ? (? 束線 ? 赤 / 黒 ?) ? ( （） ） ? 11 DXS12/DXS15 A-5-4 Disconnect the connectors of the LFSPOUT connector assembly (red/black) and CON” is displayed on the DIAG application. The voltage of DC

35、 +1 V is stopped, and 1 pin of CN254 is opened. Protection is released, and “OFF” is displayed on the DIAG application. (2) The voltage of DC -1 V is added to 1 pin of CN254 of the AMPSW circuit board. The DC protection operates within one second, and “DC-PROTECTION;ON” is displayed on the DIAG appl

36、ication. The voltage of DC -1 V is stopped, and 1 pin of CN254 is opened. Protection is released, and “OFF” is displayed on the DIAG application. (3) The voltage of DC +1 V is added to 2 pin of CN254 of the AMPSW circuit board. The DC protection operates within one second, and “DC-PROTECTION;ON” is

37、displayed on the DIAG application. The voltage of DC +1 V is stopped, and 2 pin of CN254 is opened. Protection is released, and “OFF” is displayed on the DIAG application. (4) The voltage of DC -1 V is added to 2 pin of CN254 of the AMPSW circuit board. The DC protection operates within one second,

38、and “DC-PROTECTION;ON” is displayed on the DIAG application. The voltage of DC -1 V is stopped, and 2 pin of CN254 is opened. Protection is released, and “OFF” is displayed on the DIAG application. 2-10. DC 検出回路 (1) AMPSW CN254 1 番端子 DC +1 V 印加。 1 秒以内 DC 動作、DIAG 上 ON 表示。 DC +1 V 印加、 CN254 1 番端子 。 解除

39、、DIAG 上 OFF 表示。 (2) AMPSW CN254 1 番端子 DC -1 V 印加。 1 秒以内 DC 動作、DIAG 上 ON 表示。 DC -1 V 印加、CN254 1 番端子 。 解除、DIAG 上 OFF 表示。 (3) AMPSW CN254 2 番端子 DC +1 V 印加。 1 秒以内 DC 動作、DIAG 上 ON 表示。 DC +1 V 印加、 CN254 2 番端子 。 解除、DIAG 上 OFF 表示。 (4) AMPSW CN254 2 番端子 DC -1 V 印加。 1 秒以内 DC 動作、DIAG 上 ON 表示。 DC -1 V 印加、CN254

40、2 番端子 。 解除、DIAG 上 OFF 表示。 43 DXS12/DXS15 2-11. Detector circuit of POFF-REQ Execute POFF-REQ inspection of diagnostic mode. After POWER LED lights, it is turned off. Confi rm that the power supply shall shut down. 2-12. Gain (1) Set the level control (INPUT) to the maximum position. The signal of -1

41、0 dBu is input to INPUT terminal (XLR) L, and the output voltage is measured. Confirm that the output level is within the specified below. THRU L : -10.02.0 dBu SP OUT (LF) CN609-1 (OUT+_L) : +27.3 +3.0/-1.0 dBu CN609-3 (OUT-_L) : (2) Set the level control (INPUT) to the maximum position. The signal

42、 of -10 dBu is input to INPUT terminal (XLR) R, and the output voltage is measured. Confirm that the output level is within the specified below. THRU R : -10.02.0 dBu SP OUT (LF) CN609-1 (OUT+_L) : +27.3 +3.0/-1.0 dBu CN609-3 (OUT-_L) : 2-13. Frequency Response (1) Set the level control (INPUT) to t

43、he maximum position. The signal of -10 dBu is input to INPUT terminal (XLR) L, and the output voltage is measured. Measurements are recorded. SP OUT (LF) CN609-1 (OUT+_L) : (A1) CN609-3 (OUT-_L) : (2) Set the level control (INPUT) to the maximum position. The sine wave of 20 Hz, -10 dBu is input to

44、INPUT terminal (XLR) L, and the output voltage is measured. SP OUT (LF) CN609-1 (OUT+_L), CN609-3 (OUT-_L) : Confi rm that the range of 02 dB based on A1. 2-11. POFF-REQ 検出回路 POFF-REQ 検査実行。 POWER LED 点灯、消灯。 電源確認。 2-12. 利得 (1) LEVEL （INPUT）最大設定 。 入力端子（XLR）L -10 dBu 信号入力、 出力電圧測定。 出力下記規定範囲内確 認。 THRU L

45、: -10.0 2.0 dBu SP OUT (LF) CN609-1 (OUT+_L) : +27.3 +3.0/-1.0 dBu CN609-3 (OUT-_L) : (2) LEVEL （INPUT）最大設定 。 入力端子（XLR）R -10 dBu 信号入力、 出力電圧測定。 出力下記規定範囲内確 認。 THRU R : -10.0 2.0 dBu SP OUT (LF) CN609-1 (OUT+_L) : +27.3 +3.0/-1.0 dBu CN609-3 (OUT-_L) : 2-13. 周波数特性 (1) LEVEL （INPUT）最大設定 。 入力端子（XLR）L -10

46、 dBu 信号入力、 出力電圧測定。 測定値記録。 SP OUT (LF) CN609-1 (OUT+_L) : (A1) CN609-3 (OUT-_L) : (2) LEVEL （INPUT）最大設定 。 入力端子（XLR）L 20 Hz, -10 dBu 正弦波 入力、出力電圧測定。 SP OUT (LF) CN609-1 (OUT+_L)、CN609-3 (OUT-_L) : A1 基準 0 2 dB 範囲内 確認。 44 DXS12/DXS15 2-14. Total Harmonic Distortion Set the level control (INPUT) to the maximum position. When the signal is input to the INPUT terminal (XLR) L. The following outputs are obtained, total harmonic distortion is measured. SP OUT (LF) CN60