Yamaha DXR Series Powered Speakers Service Manual 电路图.pdf

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1、HAMAMATSU, JAPAN DXR8: 201202-71400 DXR10: 201202-81900 DXR12: 201202-92400 DXR15: 201202-102900 PA012041 SERVICE MANUAL UB-DXR8: 201202-10500 UB-DXR10: 201202-10500 UB-DXR12: 201202-15750 UB-DXR15: 201202-15750 Copyright (c) Yamaha Corporation. All rights reserved. PDF 12.03 SPECIFICATIONS（総合仕様） .3

2、 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） .26 CIRCUIT BOARDS（基板図） .27 TEST PROGRAM（） .35 INSPECTIONS（検査） .45 UPDATING（） .55 PARTS LIST BLOCK DIAGRAM（） LEVEL DIAGRAM（） CIRCUIT DIAGRAM（回路図） UB-DXR8/UB-DXR10/UB-DXR12/UB

3、-DXR15 SERVICE MANUAL CONTENTS（目次） DXR8 DXR10DXR12 DXR15 POWERED SPEAKER DXR8/DXR10/DXR12/DXR15 U BRACKET UB-DXR8/UB-DXR10/UB-DXR12/UB-DXR15 UB-DXR8 / UB-DXR10 / UB-DXR12 / UB-DXR15 U BRACKET UB-DXR12 UB-DXR8 UB-DXR10 UB-DXR15 RadioFans.CN 收音机爱 好者资料库 DXR8/DXR10/DXR12/DXR15 2 WARNING Components havin

4、g special characteristics are marked and must be replaced with 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 inh

5、erent 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

6、 components and failure of the product to perform as specified. 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 i

7、ndividual or firm does not constitute authorization certification, 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

8、, and service departments of Yamaha are continually striving to 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 Servi

9、ce Division. WARNING : Static discharges can destroy expensive 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 rep

10、lacement. Recheck all work before you apply power to the unit. 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

11、 EVER! 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. IMPORTANT NO

12、TICE FOR THE UNITED KINGDOM Connecting the Plug and Cord WARNING: 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 appa

13、ratus may not correspond with the coloured markings identifying 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.

14、 The wire which is coloured BLUE must be connected to the terminal 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.

15、 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 好者资料库 3 DXR8/DXR10/DXR12/DXR15 SPECIFICATIONS（総合仕様） GeneralDXR8DXR10DXR12DXR15 System Type 2-way, Bi-amp Powered Speaker, Bass-refl ex Type Frequency Range (-10dB)57Hz 20kHz56Hz 20kHz52Hz 20kHz49Hz 20kHz Coverage AngleH90 x V60 Constant

16、Directivity Horn Crossover TypeFIR-X tuning (Linear Phase FIR Filter) Crossover Frequency2.4kHz2.3kHz2.1kHz2.1kHz Measured Maximum SPL (peak) IEC noise1m 129dB SPL131dB SPL132dB SPL133dB SPL TransducerDXR8DXR10DXR12DXR15 LFDiameter8 Cone10 Cone12 Cone15 Cone Voice coil222.52.5 MagnetFerrite HFDiaphr

17、agm1.4 Type1 Throat Compression Driver MagnetFerrite EnclosureDXR8DXR10DXR12DXR15 Material, Finish, ColorABS, Matte Black Floor Monitor Angle5050 Symmetrical50 Symmetrical Dimensions (WxHxD, with rubber feet) 280458280 mm (11 x 18 x 11) 305502310 mm (12 x 19-3/4 x 12-1/4) 362601350 mm (14-1/4 x 23-5

18、/8 x 13-3/4) 445700380 mm (17-1/2 x 27-1/2 x 15) Net Weight13.5kg (29.8lbs)14.6kg (32.2lbs)19.3kg (42.5lbs)22.5kg (49.6lbs) HandlesAluminium die-cast (Top x 1)Aluminium die-cast (Side x 2) Pole Socket35mm with 2-way feature (0 or 7 degree) Rigging pointsTop x 2, Rear x 1 (Fits for M8 x 15mm eyebolts

19、)Top x 2, Rear x 1 (Fits for M10 x 18mm eyebolts) Optional Accessory (U-bracket)UB-DXR8UB-DXR10UB-DXR12UB-DXR15 Amplifi erDXR8DXR10DXR12DXR15 Amplifi er TypeClass-D Power Rating *1Dynamic1100W (LF: 950W, HF: 150W) Continuous700W (LF: 600W, HF: 100W) CoolingFan cooling, 4 speeds AD/DA24bit 48kHz samp

20、ling Signal Processing48bit (Accumulator: 76bit) HPF/LPFOFF, 100, 120Hz 24dB/oct HPF DSP presetD-CONTOUR: FOH/MAIN, MONITOR, OFF ProtectionSpeakerClip limiting, Integral Power Protection, DC-fault Amplifi erThermal, Output over current Power supplyThermal, Output over voltage, Output over current Co

21、nnectorsInputINPUT1: XLR3-31 x 1, INPUT2: Phone x 2 (Unbalanced), INPUT3: RCA PIN x 2 (Unbalanced) OutputTHRU: XLR3-32 x 1 (Parallel with INPUT1), LINK OUT: XLR x1 Input ImpedanceINPUT1LINE: 12k, MIC: 8k INPUT2, 3L, R: 40k, MONO: 20k Input Sensitivity (LEVEL: Maximum) INPUT1LINE: +1dBu, MIC: -32dBu

22、INPUT2, 3-13dBu Input Sensitivity (LEVEL: Center) INPUT1LINE: +11dBu, MIC: -22dBu INPUT2, 3-3dBu Maximum Input LevelINPUT1LINE: +24dBu, MIC: +20dBu INPUT2, 3+16dBu ControlsLEVEL x3, LINE/MIC, HPF, D-CONTOUR, FRONT LED DISABLE, LINK MODE, POWER Idle Power Consumption35W 1/8 Power Consumption90W110W P

23、ower 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 DXR8/DXR10/DXR12/DXR15 4 PANEL LAYOUT（） 7 0 ? ? ? ? ? ? ? ? ? ? ?

24、? ? ? ? ? ? ? Rear panel（） Tiltable pole socket （可能） q INPUT jacks w THRU jack e LEVEL control r LIMIT indicator t SIGNAL indicator y PROTECTION indicator u POWER indicator i FRONT LED DISABLE switch o MIC/LINE switch !0 D-CONTOUR switch !1 HPF switch !2 LINK OUT jack !3 LINK MODE switch !4 AC IN so

25、cket !5 Power switch !6 Tiltable pole socket q INPUT 端子 w THRU 端子 e LEVEL r LIMIT t SIGNAL y PROTECTION u POWER i FRONT LED DISABLE o MIC/LINE !0 D-CONTOUR !1 HPF !2 LINK OUT 端子 !3 LINK MODE !4 AC IN 端子 !5 電源 !6 可能 5 DXR8/DXR10/DXR12/DXR15 CIRCUIT BOARD LAYOUT（） DXR8 / DXR10 DXR12 / DXR15 Front view

26、 (正面)Right side view (右側面)Rear view (背面) Front view (正面)Right side view (右側面)Rear view (背面) SPEAKER (WOOFER) （ （） ） This figure shows the DXR8. （図、 DXR8 。 ） This figure shows the DXR12. （図、 DXR12 。 ） SPEAKER (TWEETER) （ （） ） AMP ASSEMBLY （ Ass y） SPEAKER (TWEETER) （ （） ） AMP ASSEMBLY （ Ass y） SPEAKE

27、R (WOOFER) （ （） ） LED LED DXR8/DXR10/DXR12/DXR15 6 AMP ASSEMBLY（Ass y） TWAMP ASSEMBLY （TWAMP Ass y） （ ） DC FAN （DC ） TWAMP SUB1 SUB3 SUB4 AMPS DSP SUB2 7 DXR8/DXR10/DXR12/DXR15 DIMENSIONS（寸法図） DXR8 280280 458 DXR10 310305 355 50 502 Unit（単位）: mmUnit（単位）: mm DXR12DXR15 Unit（単位）: mmUnit（単位）: mm 350362

28、 601 402 50 380445 456 700 50 8 DXR8/DXR10/DXR12/DXR15 DISASSEMBLY PROCEDURE（分解手順） A. Disassembly of DXR8/DXR10 A-1. Metal Grille Assembly (Time required: About 1 minute) A-1-1 Remove the six (6) screws marked 150. The metal grille assembly can then be removed. (Fig. A-1) * When installing the metal

29、 grille assembly, fi rst tighten the two (2) priority screws as shown in Fig. A-1. A-2. Speaker (Woofer) (Time required: About 3 minutes) A-2-1 Remove the metal grille assembly. (See procedure A-1.) A-2-2 Remove the eight (8) screws marked 50. The speaker (woofer) can then be removed. (Fig. A-2, Fig

30、. A-3) * When installing the speaker (woofer), fi rst tighten the four (4) priority screws in order as shown in Fig. A-3. A-2-3 Remove the LFSPOUT connector assembly (red/black) attached to the speaker (woofer) terminal. (Fig. A-2, Fig. A-4) * The speaker (woofer) is heavy. Be careful not to drop it

31、. A. DXR8/DXR10 分解 A-1. Assy（所要時間：約 1 分） A-1-1 150 6 本外、 Assy 外。 （図 A-1） Assy 取付、図示優先 2 本先締。 （図 A-1） A-2. （）（所要時間：約 3 分） A-2-1 Assy 外。 （A-1 項参照） A-2-2 50 8 本外、（） 外。 （図 A-2、図 A-3） （）取付、優先 4 本図示順番先締。 （図 A-3） A-2-3 （）端子取付 LFSPOUT 束線（赤黒）外。 （図 A-2、図 A-4） （）重量、落下 様注意。 Fig. A-1 （図A-1）Fig. A-2 （図A-2） 50 LFS

32、POUT CONNECTOR ASSEMBLY (RED/BLACK) （LFSPOUT 束線 （赤 / 黒） ） SPEAKER (WOOFER) （ （） ） This figure shows the DXR8. （図、 DXR8 。 ） PRIORITY SCREW （優先） PRIORITY SCREW （優先） 150 150 METAL GRILLE ASSEMBLY （ Ass y） This figure shows the DXR8. （図、 DXR8 。 ） 9 DXR8/DXR10/DXR12/DXR15 A-3. Baffl e Assembly (Time requ

33、ired: About 4 minutes) A-3-1 Remove the metal grille assembly. (See procedure A-1.) A-3-2 DXR8: Remove the twelve (12) screws marked 30A. The baffl e assembly can then be removed. (Fig. A-5, Fig. A-6) DXR10: Remove the fourteen (14) screws marked 30B. The baffl e assembly can then be removed. (Fig.

34、A-5, Fig. A-6) * DXR8: When installing the baffl e assembly, fi rst tighten the four (4) priority screws as shown in Fig. A-6. DXR10: When installing the baffl e assembly, fi rst tighten the six (6) priority screws in order as shown in Fig. A-6. A-3-3 Disconnect the connectors of the LFSPOUT connect

35、or assembly (red/black), HFSPOUT connector assembly (yellow/blue) and CON” is displayed on the DIAG application. 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. 2-3. 時消費電力 測定入力無信号状態行。 一次消費電力 26 W 3 W 確認 。 2-4. 確

36、認 INFO 検査実行。 PC 表示確認 。 2-5. ID 確認 INFO 検査実行。 PC 表示 ID 下記規定通 確認。 Ass y 名称 MODEL ID Ass y 8 DXR8 Ass y 10 DXR10 Ass y 12 DXR12 Ass y 15 DXR15 2-6. 温度確認 AD 入力検査実行。 範囲内自動判定。 許容範囲 ：0.10 V 0.50 V 2-7. 確認 LED 検査実行。 LED 1 個順次点灯、消灯、最後全点灯 全消灯確認。 （目視検査） 2-8. 確認 SWITCH 検査実行。 各正常動作確認。 2-9. 確認 FAN 検査実行。 回転速度変確認。

37、2-10. DC 検出回路 (1) AMPS 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。 49 DXR8/DXR10/DXR12/DXR15 (2) The voltage of DC -1 V is added to 1 pin of CN254 of the AMPS circuit board. The DC protection operates within one second, and “DC-PROTECTION;ON” is disp

38、layed on the DIAG application. 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 AMPS circuit board. The DC protection operates within one second, and “

39、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. (4) The voltage of DC -1 V is added to 2 pin of CN254 of the AMPS circuit board. The DC protection operates

40、 within one second, 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. (5) The voltage of DC +1 V is added to between 3 pin and 4 pin of CN254 of the AMP

41、S circuit board. The DC protection operates within one second, and “DC-PROTECTION;ON” is displayed on the DIAG application. The voltage of DC +1 V is stopped. Protection is released, and “OFF” is displayed on the DIAG application. (6) The voltage of DC -1 V is added to between 3 pin and 4 pin of CN2

42、54 of the AMPS circuit board. The DC protection operates within one second, and “DC-PROTECTION;ON” is displayed on the DIAG application. The voltage of DC -1 V is stopped. Protection is released, and “OFF” is displayed on the DIAG application. (2) AMPS CN254 1 番端子 DC -1 V 印加。 1 秒以内 DC 動作、DIAG 上 ON 表

43、示。 DC -1 V 印加、CN254 1 番端子 。 解除、DIAG 上 OFF 表示。 (3) AMPS 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) AMPS 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。 (5) AMPS CN254 3 番端子 4 番端子 間 DC +1 V 印加。 1 秒以内 DC

44、 動作、DIAG 上 ON 表示。 DC +1 V 印加。 解除、DIAG 上 OFF 表示。 (6) AMPS CN254 3 番端子 4 番端子 間 DC -1 V 印加。 1 秒以内 DC 動作、DIAG 上 ON 表示。 DC -1 V 印加。 解除、DIAG 上 OFF 表示。 50 DXR8/DXR10/DXR12/DXR15 2-11. Detector circuit of POFF-REQ Execute POFF-REQ inspection of diagnostic mode. After POWER LED lights, it is turned off. Conf

45、i rm that the power supply shall shut down. 2-12. Gain (1) Set the level control (INPUT1) to the maximum position. The signal of -10 dBu is input to INPUT terminal 1 (XLR), and the output voltage is measured. Confirm that the output level is within the specified below. THRU : -10.02.0 dBu SP OUT (LF

46、) CN609-1 (OUT+_L) : +26.3 +3.0/-1.0 dBu CN609-3 (OUT-_L) : SP OUT (HF) CN610-1 (OUT+_H) : -1.93 +3.0/-1.0 dBu CN610-2 (OUT-_H) : LINK OUT : 0.0 +3.0/-1.0 dBu (2) Set the level control (INPUT2) to the maximum position. Insert the dummy plug in INPUT terminal 2 (PHONES) R. The signal of -24 dBu is in

47、put to INPUT terminal 2 (PHONES) L, and the output voltage is measured. Confirm that the output level is within the specified below. SP OUT (LF) CN609-1 (OUT+_L) : +26.3 +3.0/-1.0 dBu CN609-3 (OUT-_L) : The signal of -24 dBu is input to INPUT terminal 2 (PHONES) R, and the output voltage is measured

48、. Confirm that the output level is within the specified below. SP OUT (LF) CN609-1 (OUT+_L) : +26.3 +3.0/-1.0 dBu CN609-3 (OUT-_L) : (3) Set the level control (INPUT3) LINK MODE switch to the ON position. The signal of -24 dBu is input to INPUT terminal 3 (PINS) L, and the output voltage is measured. Confirm that the output level is within the specified below. SP OUT (HF) CN610-1 (OUT+_H) : -1.93