Yamaha-MW-10-Service-Manual电路原理图.pdf

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1、SERVICE MANUAL HAMAMATSU, JAPAN Copyright (c) Yamaha Corporation. All rights reserved. PDF 06.02 PA011816 CONTENTS（目目目目目次次次次次） SPECIFICATIONS（総合仕様） . 3/5 DIMENSIONS（寸法図） . 7 CIRCUIT BOARD LAYOUT（） . 7 WIRING（結線図） . 8 PANEL LAYOUT（）. 9 DISASSEMBLY PROCEDURE（分解手順）. 12 LSI PIN DESCRIPTION（LSI 端子機能表） .

2、16 IC BLOCK DIAGRAM （IC図） . 16 CIRCUIT BOARDS（基板図）. 17 INSPECTIONS（検査） . 26/37 BLOCK DIAGRAM (91 dB S/N) equivalent to a 20 kHz filter with infinite All channel AUX controls at minimum level. (AUX SEND) -85 dBu dB/octave attenuation. (89 dB S/N) ST master control and one channel LEVEL control at -64

3、 dBu nominal level. (CH INPUT 1, 2) (ST OUT) (68 dB S/N) CH INPUT 1, 2 MIC to CH INSERT OUT, Rs=150 ohms, 60 dB GAIN controls at maximum level CH INPUT 1-5/6 MIC to ST OUT, Rs=150 ohms, 76 dB GAIN controls at maximum level CH INPUT 1-5/6 MIC to REC OUT, Rs=150 ohms, 64.2 dB GAIN controls at maximum

4、level CH INPUT 1, 2 MIC to AUX SEND, Rs=150 ohms, 70 dB GAIN controls at maximum level, PRE Maximum Voltage Gain CH INPUT 1, 2 MIC to AUX SEND, Rs=150 ohms, 76 dB 1 kHz, 10k ohms GAIN controls at maximum level, POST PAN/BAL: panned hard left or hard right. CH INPUT 3/4-5/6 LINE to ST OUT, Rs=150 ohm

5、s, 50 dB GAIN controls at maximum level CH INPUT 3/4-5/6 LINE to AUX SEND, Rs=150 ohms, 41 dB GAIN controls at maximum level, PRE CH INPUT 3/4-5/6 LINE to AUX SEND, Rs=150 ohms, 47 dB GAIN controls at maximum level, POST CH INPUT 7/8-9/10 to ST OUT, Rs=150 ohms, 26 dB GAIN controls at maximum level

6、RETURN to ST OUT, Rs=150 ohms 12 dB 2TR IN to ST OUT, Rs=600 ohms 23.8 dB Crosstalk (1 kHz) Adjacent inputs -70 dB input to output -70 dB Where 0 dBu = 0.775 Vrms Output impedance of signal generator: 150 ohms Electrical Characteristics Monaural/Stereo CH High Pass Filter 80 Hz 12 dB/octave Monaural

7、/Stereo CH Equalization 15 dB (Max. Variation) HIGH: 10 kHz (shelving) Turn over/roll-off frequency of shelving, MID: 2.5 kHz (peaking) 3 dB below maximumvariable level LOW: 100 Hz (shelving) Phantom Power Supplied when Phantom +48 V switch is ON. (XLR-type input jacks) Monaural/Stereo Input PEAK In

8、dicator On each channel: red indicator lights if post-EQ signal (on stereo channels, if either post-EQ signal or post-mic-amp signal) comes within 3 dB of the clipping level. USB Audio Input/Output: 44.1/48 kHz Included Accessories Power adaptor (PA-10), CD-ROM, USB cable Power Consumption 19 W Dime

9、nsions (W x H x D) 251 mm x 65 mm x 290.5 mm Net Weight 1.8 kg Temperature Range Operating temperature: 0 to 40C, Storage temperature: -20 to 60C General Specifications 4 MW10 Input Connector Gain Input Appropriate Sensitivity* Nominal Max. Before Connector Impedance Impedance Level Clipping Specifi

10、cations -60 -72 dBu -60 dBu -40 dBu MIC INPUT 3 k ohms 50-600 ohms mic (0.195 mV) (0.775 mV) (7.75 mV) XLR-3-31 type (CH 1, 2) -16 -28 dBu -16 dBu +4 dBu (balanced) (30.8 mV) (123 mV) (1.23 V) -34 -46 dBu -34 dBu -14 dBu Phone jack (TRS) LINE INPUT 10 k ohms 600 ohms line (3.88 mV) (15.5 mV) (155 mV

11、) (balanced T: hot; (CH 1, 2) +10 -2 dBu +10 dBu +30 dBu R: cold; (0.615 V) (2.45 V) (24.5 V) S: ground) ST CH MIC INPUT -60 -72 dBu -60 dBu -40 dBu (CH3(L)/CH4(R), 3 k ohms 50-600 ohms mic (0.195 mV) (0.775 mV) (7.75 mV) XLR-3-31 type CH5(L)/CH6(R) -16 -28 dBu -16 dBu -10 dBu (balanced) (30.8 mV) (

12、123 mV) (245 mV) ST CH LINE INPUT -34 -46 dBu -34 dBu -14 dBu (CH3(L)/CH4(R), 10 k ohms 600 ohms line (3.88 mV) (15.5 mV) (155 mV) Phone jack CH5(L)/CH6(R) +10 -2 dBu +10 dBu +30 dBu (unbalanced) (0.615 V) (2.45 V) (24.5 V) ST CH INPUT -22 dBu -10 dBu +10 dBu Phone jack (CH7(L)/CH8(R), 10 k ohms 600

13、 ohms line (61.5 mV) (245 mV) (2.45 V) (unbalanced); (CH9(L)/CH10(R) RCA pin jack Phone jack (TRS) CH INSERT IN 10 k ohms 600 ohms line -12 dBu 0 dBu +20 dBu (unbalanced (CH 1, 2) (195 mV) (0.775 V) (7.75 V) T: out; R: in; S: ground) RETURN (L, R) 10 k ohms 600 ohms line -8 dBu +4 dBu +24 dBu Phone

14、jack (308 mV) (1.23 V) (12.3 V) (unbalanced) 2TR IN (L, R) 10 k ohms 600 ohms line -22 dBV -10 dBV +10 dBV RCA pin jack (79.4 mV) (316 mV) (3.16 V) Where 0 dBu=0.775 Vrms and 0 dBV=1 Vrms * Input sensitivity: the lowest level that will produce an output of +4 dBu (1.23V) or the nominal output level

15、when the unit is set to maximum gain. (All level controls are maximum position.) Analog Input Specifications Output Connectors Output Impedance Appropriate Nominal Level Max. Before Connector Specifications Impedance Clipping Phone jack (TRS) ST OUT (L, R) 150 ohms 10 k ohms line +4 dBu (1.23 V) +20

16、 dBu (7.75 V) (balanced T: hot; R: cold; S: ground) Phone jack (TRS) AUX SEND (1, 2) 150 ohms 10 k ohms line +4 dBu (1.23 V) +20 dBu (7.75 V) (impedance balanced T: hot; R: cold; S: ground) CH INSERT OUT Phone jack (TRS) (CH 1, 2) 150 ohms 10 k ohms line 0 dBu (0.775 V) +20 dBu (7.75 V) (unbalanced

17、T: out; R: in; S: ground) REC OUT (L, R) 600 ohms 10 k ohms line -10 dBV (316 mV) +10 dBV (3.16 V) RCA pin jack Phone jack (TRS) C-R OUT (L, R) 150 ohms 10 k ohms line +4 dBu (1.23 V) +20 dBu (7.75 V) (impedance balanced T: hot; R: cold; S: ground) PHONES 100 ohms 40 ohms phone 3 mW 75 mW Stereo pho

18、ne jack Where 0 dBu=0.775 Vrms and 0 dBV=1 Vrms Analog Output Specifications Connector Format Data Length Connector Specification USB USB Audio 1.1 16 bit USB B type Digital Input/Output Specifications 5 MW10 総合仕様 、 80 Hz 12 dB/octave 、 15 dB ( 最大可変幅) / 周波数：最大可 HIGH：10 kHz ( ) 変幅対3 dB 下 MID：2.5 kHz

19、( ) LOW：100 Hz ( ) 電源 PHANTOM DC+48 V 供給(XLR 入力端子) / PEAK 各：後（、後MIC 後） 信号、手前3 dB 達赤点灯 USB 入出力44.1/48kHz 付属品 電源(PA-10)、CD-ROM、USB 消費電力 19 W 最大外形寸法（W H D） 251 mm x 65 mm x 290.5 mm 質量 1.8 kg 温度 動作温度: 0 40 、保管温度: -20 60 一般仕様 条件 最小 標準 最大 単位 全高調波歪率 (THD+N) 20 Hz - 20 kHz +14 dBu 10k ohms、 (MIC ST OUT) GA

20、IN 最小、 0.1 % 周波数特性 20 Hz 20 kHz、出力1kHz、10 k ohms、 (CH INPUT 19/10、RETURN、2TR IN ST OUT、 GAIN 最小(CH INPUT 1 5/6)、 -3.0 0 1.0 dB AUX SEND、C-R OUT、REC OUT) 入力換算(CH INPUT 1 2 MIC) -128 dBu & 残留(10 k ohms (ST OUT) -100 dBu Rs=150 ohms、GAIN = 最大 ST 、 -87 dBu (CH INPUT 12)、12.7 kHz、 全LEVEL 最小(ST OUT) (91 d

21、B S/N) - 6 dB/octave 測定(20 kHz、- dB/octave 全AUX 最小、(AUX SEND) -85 dBu 相当) (89 dB S/N) ST &1 LEVEL -64 dBu (CH INPUT 1、2) (ST OUT) (68 dB S/N) CH INPUT 1 、2 MIC CH INSERT OUT、Rs=150 ohms、 60 dB GAIN 最大 CH INPUT 1 5/6 MIC ST OUT、Rs=150 ohms、 76 dB GAIN 最大 CH INPUT 1 5/6 MIC REC OUT、Rs=150 ohms、 64.2 d

22、B GAIN 最大 CH INPUT 1 、2 MIC AUX SEND、Rs=150 ohms、 70 dB GAIN 最大、PRE 最大電圧 CH INPUT 1 、2 MIC AUX SEND、Rs=150 ohms、 76 dB 1 kHz, 10k ohms GAIN 最大、POST PAN/BAL：左右回切 CH INPUT 3/4 5/6 LINE ST OUT、Rs=150 ohms、 50 dB GAIN 最大 CH INPUT 3/4 5/6 LINE AUX SEND、Rs=150 ohms、 41 dB GAIN 最大、PRE CH INPUT 3/4 5/6 LINE

23、 AUX SEND、Rs=150 ohms、 47 dB GAIN 最大、POST CH INPUT 7/8 9/10 ST OUT、Rs=150 ohms、 26 dB GAIN 最大 RETURN ST OUT、Rs=150 ohms 12 dB 2TR IN ST OUT、Rs=600 ohms 23.8 dB (1 kHz) 入力間 -70 dB 入出力間 -70 dB 0 dBu = 0.775 Vrms 出力150 ohms 電気的特性 6 MW10 入力端子名称 入力 適合 感度*1 最大 端子仕様 -60 -72 dBu -60 dBu -40 dBu MIC INPUT 3

24、k ohms 50-600 ohms (0.195 mV) (0.775 mV) (7.75 mV) XLR-3-31 (CH 1, 2) -16 -28 dBu -16 dBu +4 dBu （型） (30.8 mV) (123 mV) (1.23 V) -34 -46 dBu -34 dBu -14 dBu （TRS） LINE INPUT 10 k ohms 600 ohms (3.88 mV) (15.5 mV) (155 mV) （型T：、 (CH 1, 2) +10 -2 dBu +10 dBu +30 dBu R：、 (0.615 V) (2.45 V) (24.5 V) S：）

25、 ST CH MIC INPUT -60 -72 dBu -60 dBu -40 dBu (CH3(L)/CH4(R), 3 k ohms 50-600 ohms (0.195 mV) (0.775 mV) (7.75 mV) XLR-3-31 CH5(L)/CH6(R) -16 -28 dBu -16 dBu -10 dBu （型） (30.8 mV) (123 mV) (245 mV) ST CH LINE INPUT -34 -46 dBu -34 dBu -14 dBu (CH3(L)/CH4(R), 10 k ohms 600 ohms (3.88 mV) (15.5 mV) (15

26、5 mV) CH5(L)/CH6(R) +10 -2 dBu +10 dBu +30 dBu （型） (0.615 V) (2.45 V) (24.5 V) ST CH INPUT -22 dBu -10 dBu +10 dBu (CH7(L)/CH8(R), 10 k ohms 600 ohms (61.5 mV) (245 mV) (2.45 V) （型）、 (CH9(L)/CH10(R) RCA （TRS） CH INSERT IN 10 k ohms 600 ohms -12 dBu 0 dBu +20 dBu （型 (CH 1, 2) (195 mV) (0.775 V) (7.75

27、 V) T：、R： 、S：） RETURN (L, R) 10 k ohms 600 ohms -8 dBu +4 dBu +24 dBu (308 mV) (1.23 V) (12.3 V) （型） 2TR IN (L, R) 10 k ohms 600 ohms -22 dBV -10 dBV +10 dBV RCA (79.4 mV) (316 mV) (3.16 V) 0 dBu=0.775 Vrms、0 dBV=1 Vrms *1 入力感度: 最大位置、+4 dBu (1.23V) 出力得最小入力 入力仕様 出力端子名称 出力 適合 最大 端子仕様 （TRS） ST OUT (L,

28、R) 150 ohms 10 k ohms +4 dBu (1.23 V) +20 dBu (7.75 V) （型 T：、R：、S：） （TRS） AUX SEND (1, 2) 150 ohms 10 k ohms +4 dBu (1.23 V) +20 dBu (7.75 V) （型 T：、R：、S：） CH INSERT OUT （TRS） (CH 1, 2) 150 ohms 10 k ohms 0 dBu (0.775 V) +20 dBu (7.75 V) （型 T：、R：、S：） REC OUT (L, R) 600 ohms 10 k ohms -10 dBV (316 mV)

29、 +10 dBV (3.16 V) RCA （TRS） C-R OUT (L, R) 150 ohms 10 k ohms +4 dBu (1.23 V) +20 dBu (7.75 V) （型 T：、R：、S：） PHONES 100 ohms 40 ohms 3 mW 75 mW 0 dBu=0.775 Vrms、0 dBV=1 Vrms 出力仕様 端子名称 長 端子仕様 USB USB 1.1 16 bit USB B 入出力仕様 7 MW10 DIMENSIONS（寸法図） Unit: mm （単位: mm) 251 290.5 65 CIRCUIT BOARD LAYOUT（） MA

30、IN USB 8 MW10 WIRING（結線図） (c). Fix the wire by pasting the filament tape to the position of figure. 図位置貼、線材固定。 * Note that the wire (black) doesnt shut the hole that tightens the screw. 時、線材(黒)締穴塞注意下。 (c): Filament Tape (b). Wiring Assy USB10 is fixed with the STYLE PIN that has placed to the PCB As

31、sy MAIN. 束線USB10MAIN上固定。 * Note that the wiring Assy USB10 doesnt approach C501,502, 601,602 of PCB Assy MAIN. 時、束線USB10MAINC501,502,601,602近付 注意下。 (b)C501,502,601,602 (d). Fix the wiring Assy USB10 by pasting the filament tape to the position of figure. 図位置貼、束線USB10固定。 * Note that the wiring Assy U

32、SB10 doesnt shut the hole of PCB Assy MAIN. 時、束線USB10MAIN穴塞注意 下。(d): Hole of PCB Assy MAIN. (a): Wirng Assy AC8 (a): Top Cover (b): PWB Print (reticulation) (c): Hole of Screw tightening 1. Processing method of Wiring Assy AC8 (WD350000) 束線AC8(WD350000)処理 (a). Twist Wiring Assy AC8 three times, and

33、fix to a top cover. 束線AC83回捻、固定。 (b). Adjust the position so that the wire is arranged within the range of the PWB print (reticulation). 線材、基板印刷(網目)範囲内配置位置調 整。 (a)Hole of PCB Assy MAIN (b)STYLE PIN (c)CN101 of the PCB Assy USB (d): Filament Tape *1: This connector assembly is not a service parts. （束

34、線部品。） 2. Processing method of Wiring Assy USB10 (WG26710)*1 束線USB10(WG26710)*1処理 (a). Wiring Assy USB10 is passed through the hole of PCB Assy MAIN. 束線USB10MAIN穴通。 (c). Wiring Assy USB10 is connected with CN101 of the PCB Assy USB. 束線USB10USBCN101接続。 9 MW10 PANEL LAYOUT（） Channel Control Section（部）

35、Master Control Section（部） q w e r ty u i qGAIN Control wPEAK Indicator e Switch (High Pass Filter) rEqualizer (HIGH, MID, and LOW) tAUX Controls yPAN Control (CHs 1 and 2) PAN/BAL Control (CHs 3/4 and 5/6) BAL Control (CHs 7/8, 9/10) uChannel LEVEL Control qGAIN wPEAK e （） r（ HIGH 、 MID 、 LOW ） tAUX

36、 yPAN（CH 1、2） PAN/BAL（CH 3/4、5/6） BAL（CH 7/8、9/10） uLEVEL qPHANTOM +48V Switch wRETURN Control e2TR IN/USB Control r2TR IN/USB Switch (TO ST / TO C-R) tST Master LEVEL Control yC-R/PHONES LEVEL Control uLevel Meter iPOWER Indicator qPHANTOM +48V wRETURN e2TR IN/USB r2TR IN/USB （ TO ST/TO C-R ） tST y

37、C-R/PHONES u iPOWER Channels 1 and 2 (Monaural) Channels 3/4 and 5/6 (Stereo) Channels 7/8 (Stereo) q w e r y tt u t yy uu q w 10 MW10 q w ertyu io !0!0 !0 Input/Output Section（入出力部） Rear Section（部） qChannel Input Jacks (CHs 1, 2, 3/4, 5/6) MIC jacks LINE jacks wINSERT I/O Jacks (CHs 1 and 2) eChann

38、el Input Jacks (CHs 7/8, 9/10) r2TR IN Jacks tREC OUT (L, R) Jacks yST OUT (L, R) Jacks uC-R OUT Jacks iSEND Jacks AUX1, AUX2 oRETURN L (MONO), R Jacks !0PHONES Jack qINPUT端子（CH 1、2、3/4、5/6） iMIC端子 iLINE端子 wINSERT I/O端子（CH 1、2） eINPUT端子（CH 7/8、9/10） r2TR IN端子 tREC OUT （L、R）端子 yST OUT （L、R）端子 uC-R OU

39、T端子 iSEND端子 iAUX 1 、 AUX 2 oRETURN L（MONO） 、 R端子 !0PHONES端子 q we qAC ADAPTOR IN Connector wPOWER Switch eUSB Connector qAC ADAPTOR IN端子 w電源 eUSB端子 11 MW10 Connector Polarities MIC INPUT Pin 1: Ground Pin 2: Hot (+) Pin 3: Cold (-) LINE INPUT (monaural channels), ST OUT, C-R OUT AUX1, AUX2 * Tip: Hot

40、 (+) Ring: Cold (-) Sleeve: Ground Tip: Output Ring: Input Sleeve: Ground PHONES Tip: L Ring: R Sleeve: Ground RETURN, LINE INPUT (stereo channels) Tip: Hot Sleeve: Ground INPUTOUTPUT SleeveTip Ring SleeveTip * These jacks will also accept connection to monaural phone plugs. If you use monaural plug

41、s, the connection will be unbalanced. MIC INPUTINSERTININIININSERT I/OINSERT I/O SleeveTip 端子、端子使用。場合、。 MIC INPUT ： ： (+) ： (-) LINE INPUT（）, ST OUT, C-R OUT AUX1, AUX2 ： (+) ： (-) ： INSERT I/O ：Output ：Input ： PHONES ：L ：R ： RETURN, LINE INPUT（） ： ： INPUTOUTPUT 端子接続極性 12 MW10 DISASSEMBLY PROCEDURE（

42、分解手順） 1.Bottom Case (Time required: About 1 minute) 1-1Remove the two (2) screws marked 260. (Fig.1) 1-2Remove the five (5) screws marked 265 using a hexagonal wrench. (Fig.1) *The spacers 160 have been attached to the five (5) screws marked 265 respectively. Be careful not to lose the spacers while

43、 disassembling. (Fig.2) 1-3Under such a condition, lift the top cover up. The bottom case (with the sheet shield) can then be removed. (Fig.1) 1. （所要時間：約1分） 1-1260 2本外 。（Fig.1） 1-2265 5本六角 外 。（Fig.1） *265 5本 160 付 。 作業時 無 様注意 下 （Fig.2） 1-3状態 部分上持上 （ 付） 外 （Fig.1） (Fig.1)(Fig.2) 260: Bind Head Tapping

44、 Screw-B 3.0X8 MFZN2W3 (WE774300) 265: Socket Head Cap Screw-P 3X25 MFZN2W3 (WG349100) 角孔付 Top Cover （） Bottom Case （） 265 265 265 265 265 260 265 160 160 265 Top Cover （） MAIN 160: Spacer,MIX (WD237400) 265: Socket Head Cap Screw-P 3X25 MFZN2W3 (WG349100) 角孔付 2.USB Assembly (USB Circuit Board) (Tim

45、e required: About 2 minutes) 2-1Remove the bottom case. (See procedure 1.) 2-2Remove the two (2) screws marked 430. The USB assembly can then be removed. (Fig.3) 2.USB Ass y （USB） （所要時間：約2分） 2-1 外。（1項参照） 2-2430 2本外、 USB Ass y外。（Fig.3） 430 Top Cover （） (Fig.3) 430: Bind Head Tapping Screw-S 3.0X6 MFZ

46、N2W3 (WE877900) 13 MW10 3.MAIN Circuit Board (Time required: About 14 minutes) 3-1Remove the bottom case. (See procedure 1.) 3-2Remove USB circuit board. (See procedure 2.) 3-3Remove the one (1) LEVEL knob (red). (Fig.4) 3-4Remove the seven (7) LEVEL knob (white). (Fig.4) 3-5Remove the one (1) screw marked 263, and pull out the power switch and AC connector from the holes on the rear of the top cover. (Fig.5) 3-6Remove the eight (8) screws marked 180A. (Fig.4) 3-7Remove the two (2) screws marked 180B. (Fi