Yamaha MW8CX, MW10C USB Mixing Studio Service Manual 电路图.pdf

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1、SERVICE MANUAL HAMAMATSU, JAPAN SERVICE MANUAL Copyright (c) Yamaha Corporation. All rights reserved. PDF equivalent to a 20 kHz fi lter with infi nite dB/octave attenuation. Maximum Voltage Gain (1 kHz) All level controls are maxi- mum when measured PAN/BAL: panned hard left or hard right. Electric

2、al Specifi cations General Specifi cations Input Equalization Turn over/roll-off frequency of shelving: 3 dB below maximum variable level. 15 dB maximum PEAK lights if the signal level reaches 3 dB below the clipping level. AC 38 VCT, 0.62 A, Cable Length = 3.6 m 21 W 256.6 mm x 62.2 mm x 302.5 mm 1

3、.7 kg (MW8CX), 1.6 kg (MW10C) LED Level Mete Power Supply Adaptor Dimensions (W x H x D) Net Weight Power Consumption Pre MONITOR Level CHs 1 5/6 CH 7/8 (CHs 7/8, 9/10*) PA-10 2x7 points LED meter (PEAK, +6, +3, 0, -5, -10, -20 dB) HIGH: 10 kHz (shelving) HIGH: 10 kHz (shelving) MID: 2.5 kHz (peakin

4、g) LOW: 100 Hz (shelving) LOW: 100 Hz (shelving) Red LED turns on when post EQ signal (either post MIC HA or post EQ signal for CHs 3/4, 5/6) reaches -3 dB below clipping (+17 dBu). 16 PROGRAM, PARAMETER control Foot Switch (Digital Effect On/Off) All level controls are nominal if not specifi ed. Ou

5、tput impedance of signal generator: 150 ohms The MW8CX feature is described fi rst, followed by the MW10C feature in brackets: MW8CX (MW10C) RadioFans.CN 收音机爱 好者资料库 MW8CX/MW10C 4 Analog Input Specifi cations Where 0 dBu = 0.775 Vrms and 0 dBV= 1 Vrms * Sensitivity :The lowest level that will produce

6、 an output of +4 dB (1.23 V), or the nominal output level when the unit is set to the maximum level. (All level controls are at their maximum position.) Analog Output Specifi cations Where 0 dBu = 0.775 Vrms and 0 dBV= 1 Vrms * The MW8CX feature is described fi rst, followed by the MW10C feature in

7、brackets: MW8CX (MW10C) Digital Input/Output Specifi cations Input ConnectorsGain Input Impedance Appropriate Impedance Sensitivity * Nominal Level Max. before Clipping Connector Specifi cations CH INPUT MIC (CHs 1, 2) -60 dB 3 k 50600 Mics -72 dBu (0.195 mV) -60 dBu (0.775 mV) -40 dBu (7.75 mV) XLR

8、-3-31 type (balanced 1 = GND, 2 = HOT, 3 = COLD) -16 dB -28 dBu (30.8 mV) -16 dBu (123 mV) +4 dBu (1.23V) CH INPUT LINE (CHs 1, 2) -34 dB 10 k 600 Lines -46 dBu (3.88 mV) -34 dBu (15.5 mV) -14 dBu (155 mV) TRS phone jack (balanced Tip = HOT, Ring = COLD, Sleeve = GND) +10 dB - 2 dBu (0.615 V) +10 dB

9、u (2.45 V) +30 dBu (24.5 V) ST CH MIC INPUT (CHs 3/4, 5/6) -60 dB 3 k 50600 Mics -72 dBu (0.195 mV) -60 dBu (0.775 mV) -40 dBu (7.75 mV) XLR-3-31 type (balanced 1 = GND, 2 = HOT, 3 = COLD) -16 dB -28 dBu (30.8 mV) -16 dBu (123 mV) -6 dBu (389 mV) ST CH LINE INPUT (CHs 3/4, 5/6) -34 dB 10 k 600 Lines

10、 -46 dBu (3.88 mV) -34 dBu (15.5 mV) -14 dBu (155 mV) Phone jack (unbalanced) +10 dB - 2 dBu (0.615 V) +10 dBu (2.45 V) +30 dBu (24.5V) ST CH INPUT (CH 7/8 (CHs 7/8, 9/10)*) 10 k 600 Lines -22 dBu (61.5 mV) -10 dBu (245 mV) +10 dBu (2.45 V) Phone jack (unbalanced) RCA pin jack CH INSERT IN (CHs 1, 2

11、) 10 k 600 Lines -12 dBu (195 mV) 0 dBu (0.775 V) +20 dBu (7.75 V) TRS phone jack (unbalanced Tip = Out, Ring = In, Sleeve = GND) RETURN (L, R)10 k 600 Lines - 8 dBu (308 mV) +4 dBu (1.23 V) +24 dBu (12.3 V) Phone jack (unbalanced) 2TR IN (L, R)10 k 600 Lines -22 dBV (79.4 mV) -10 dBV (0.316 V) +10

12、dBV (3.16 V) RCA pin jack Output Connectors Output Impedance Appropriate Impedance Nominal Level Max. before clipping Connector Specifi cations STEREO OUT (L, R)150 10 k Lines+4 dBu (1.23 V)+20 dBu (7.75 V) TRS phone jack (impedance balanced Tip = HOT, Ring = COLD, Sleeve = GND) EFFECT SEND (AUX SEN

13、D*) 150 10 k Lines+4 dBu (1.23 V)+20 dBu (7.75 V) TRS phone jack (impedance balanced Tip = HOT, Ring = COLD, Sleeve = GND) CH INSERT OUT (CHs 1, 2) 75 10 k Lines0 dBu (0.775 V)+20 dBu (7.75 V) TRS phone jack (unbalanced Tip = OUT, Ring = IN, Sleeve = GND) REC OUT (L, R)600 10 k Lines-10 dBV (0.316 V

14、)+10 dBV (3.16 V)RCA Pin jack MONITOR OUT (L, R)150 10 k Lines+4 dBu (1.23 V)+20 dBu (7.75 V) TRS phone jack (impedance balanced Tip = HOT, Ring = COLD, Sleeve = GND) PHONES OUT100 40 Phones3 mW75 mWTRS phone jack ConnectorFormatData Length Connector Specifi cation USBUSB Audio 1.116 bitUSB B type 5

15、 MW8CX/MW10C * “LFO” stands for Low Frequency Oscillator. An LFO is normally used to modulate another signal, determining the modulation speed and waveform shape. NoProgramParameterDescription 1REVERB HALL 1REVERB TIME Reverb simulating a large space such as a concert hall. 2REVERB HALL 2REVERB TIME

16、 3REVERB ROOM 1REVERB TIME Reverb simulating the acoustics of a small space (room). 4REVERB ROOM 2REVERB TIME 5REVERB STAGE 1REVERB TIME Reverb simulating a large stage. 6REVERB STAGE 2REVERB TIME 7REVERB PLATEREVERB TIMESimulation of a metal-plate reverb unit, producing a more hard-edged sound. 8DR

17、UM AMBIENCEREVERB TIMEA short reverb that is ideal for use with kick drum. 9KARAOKE ECHODELAY TIMEEcho designed for karaoke (sing-along) applications. 10VOCAL ECHODELAY TIMEEcho suitable for vocals. 11CHORUS 1LFO FrequencyCreates a thick sound by modulating the delay time. The PARAMETER control adju

18、sts the frequency of the LFO* that modulates the delay time. 12CHORUS 2LFO Frequency 13FLANGERLFO Frequency A sweeping pitched effect. The PARAMETER control adjusts the frequency of the LFO* that modulates the delay time. 14PHASERLFO Frequency Phase modulation produces a cyclical phasing effect. The

19、 PARAMETER control adjusts the frequency of the LFO* that modulates the delay time. 15AUTO WAHLFO Frequency A wah-wah effect with cyclical fi lter modulation. The PARAMETER control adjusts the frequency of the LFO* that modulates the delay time. 16DISTORTIONDRIVEAdds a sharp-edged distortion to the

20、sound. Digital Effect Program List (Only MW8CX) MW8CX/MW10C 6 総合仕様 電気的特性 一般仕様 * MW8CX (MW10C)表示。 zHk84 / z Hk1.44力出入 周波数特性 全高調波歪率 (THD+N) 最大電圧 (1 kHz) 測定時、全 最大 PAN/BAL: 左右回切 電源 & 12.7 kHz、 6 dB/octave 測定 (20 kHz、- dB/octave 相当 ) （1 kHz） STEREO OUT STEREO OUT EFFECT SEND (AUX SEND*) MONITOR OUT、 REC

21、OUT Rs = 150 Rs = 150 Rs = 600 INPUT GAIN: 最大 MIC 入力: CH INPUT 1、 STEREO OUT STEREO OUT STEREO OUT EFFECT SEND (AUX SEND*) 入力間 入出力間 2 MIC 残留 GAIN：最小（CH15/6） 20 Hz20 kHz 出力 1 kHz +14dBu、20 Hz20 kHz、 入力換算 : Rs = 150 、 GAIN: 最大 (CH1、2) STEREO : 、 全 : 最小 全 EFFECT (AUX*) : 最小 STEREO&CH1、2 ： MIC CH INSERT

22、 OUT MIC STEREO OUT LINE STEREO OUT ST CH 7/8、(CH 7/8、9/10*) STEREO OUT 2TR IN STEREO OUT RETURN STEREO OUT 負荷 MIC REC OUT MIC MONITOR OUT MIC PHONES OUT MIC EFFECT SEND (AUX SEND*) LINE EFFECT SEND (AUX SEND*) GAIN : 最小 CH1、2 STEREO L/R、CH 1、2、PAN:左右回切 最大 15 dB / 周波数: 最大可変幅対3 dB 下 PEAK 内蔵 (MW8CX) L

23、ED 電源 消費電力 最大外形寸法 (W H D) 質量 USB CH 15/6 CH 7/8 (CH 7/8、9/10*) 調整前 PA-10 CH 15/6、80 Hz、12 dB/oct HIGH: 10 kHz () MID: 2.5 kHz () LOW: 100 Hz () HIGH: 10 kHz () LOW: 100 Hz () 後信号 (CH3/4、5/6 MIC 後後信号) 手前 3 dB (+17 dBu) 達赤点灯 16、PARAMETER ( / ) 2x7LED (PEAK、+6、+3、0、-5、-10、-20 dB) 信号手前3 dB 達PEAK点灯 AC 38

24、 VCT、0.62 A、長: 3.6 m 21 W 256.6 mm 62.2 mm 302.5 mm 1.7 kg (MW8CX)、1.6 kg (MW10C) 特指定場合、位置。 出力 : 150 MINTYPMAXUNIT -3.01.0 dB -3.01.0 -3.01.0 0.1% -128 dBu -87 -85 -64 -100 -70 dB 07- 06 dB 67 2.85 29 18 67 05 74 62 21 8.32 V84 7 MW8CX/MW10C 入力仕様 0 dBu = 0.775 Vrms、0 dBV= 1Vrms * 入力感度: 最大設定時+4 dB (1

25、.23 V)出力得最小(最大)。 出力仕様 0 dBu = 0.775 Vrms、0 dBV= 1Vrms * MW8CX (MW10C)表示。 入出力仕様 入力端子名称 入力 適合 感度* 最大 端子仕様 CH INPUT MIC (CH 1、 2) -60 dB 3 k 50600 Mics -72 dBu (0.195mV)-60 dBu (0.775 mV)-40 dBu (7.75mV) XLR-3-31 (型 1 = 、 2= 、3 = ) )V32.1(uBd4+)Vm321(uBd61-)Vm8.03(uBd82-Bd61- CH INPUT LINE (CH 1、 2) -3

26、4 dB 10 k 600 Lines -46 dBu (3.88 mV)-34 dBu (15.5 mV)-14 dBu (155 mV) TRS (型 T = 、R = 、S= ) )V5.42(uBd03+)V54.2(uBd01+)V516.0(uBd2-Bd01+ ST CH MIC INPUT (CH 3/4、 5/6) -60 dB 3 k 50600 Mics -72 dBu (0.195mV)-60 dBu (0.775 mV)-40 dBu (7.75mV) XLR-3-31 (型 1 = 、 2= 、3 = )Vm983(uBd6-)Vm321(uBd61-)Vm8.03

27、(uBd82-Bd61- ST CH LINE INPUT (CH 3/4、 5/6) -34 dB 10 k 600 Lines -46 dBu (3.88 mV)-34 dBu (15.5 mV)-14 dBu (155 mV) (型) )V5.42(uBd03+)V54.2(uBd01+)V516.0(uBd2-Bd01+ ST CH INPUT (CH 7/8 (CH 7/8、 9/10)*) 10 k 600 Lines -22 dBu (61.5 mV)-10 dBu (245 mV)+10 dBu (2.45 V) (型) RCA CH INSERT IN (CH 1、 2) 1

28、0 k 600 Lines -12 dBu (195 mV)0 dBu (0.775 V)+20 dBu (7.75 V) TRS (型 T = 、 R = 、S= ) RETURN (L、R)10 k 600 Lines -8 dBu (308 mV)+4 dBu (1.23 V)+24 dBu (12.3 V) (型) 2TR IN(L、R)10 k 600 Lines -22 dBV (79.4 mV)-10 dBV (0.316 V)+10 dBV (3.16 V)RCA 出力端子名称 出力 適合 最大 端子仕様 STEREO OUT (L、 R)150 10 k Lines+4 dB

29、u (1.23 V)+20 dBu (7.75 V) TRS (型 T = 、R = 、 S = ) EFFECT SEND (AUX SEND*) 150 10 k Lines+4 dBu (1.23 V)+20 dBu (7.75 V) TRS (型 T = 、R = 、 S = ) CH INSERT OUT (CH 1、 2) 75 10 k Lines0 dBu (0.775 V)+20 dBu (7.75 V) TRS (型T=、R=、S= ) REC OUT (L、 R)600 10 k Lines-10 dBV (0.316 V)+10 dBV (3.16 V)RCA MONI

30、TOR OUT (L、R)150 10 k Lines+4 dBu (1.23 V)+20 dBu (7.75 V) TRS (型 T = 、R = 、 S = ) PHONES OUT100 40 Phones3 mW75mWTRS 端子名称長端子仕様 USBUSB 1.116 bitUSB B MW8CX/MW10C 8 広空間（残響効果）。 小空間（部屋）響。 広。 鉄板。硬残響感得。 適短。 使用想定。 用想定。 異遅延時間音複数加、音厚加。 PARAMETER、遅延時間変調LFO (*) 周波数調整。 音色音程感強加。 PARAMETER、遅延時間変調LFO (*) 周波数調整。 音

31、位相変化、音加。 PARAMETER、位相変調LFO (*) 周波数調整。 周期的変化効果加。 PARAMETER、制御LFO (*) 周波数調整。 音歪、効果加。 PROGRAM 一覧（MW8CX） NoProgramParameter内容 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 REVERB HALL 1REVERB TIME REVERB HALL 2REVERB TIME REVERB ROOM 1REVERB TIME REVERB ROOM 2REVERB TIME REVERB STAGE 1REVERB TIME REVERB STAGE

32、2REVERB TIME REVERB PLATEREVERB TIME DRUM AMBIENCEREVERB TIME KARAOKE ECHODELAY TIME VOCAL ECHODELAY TIME CHORUS 1LFO 周波数 CHORUS 2LFO 周波数 FLANGERLFO 周波数 PHASERLFO 周波数 AUTO WAHLFO 周波数 DISTORTIONDRIVE * LFO: Low Frequency Oscillator（低周波発振器）略。別信号周期的変化（変調）場合使。 9 MW8CX/MW10C CIRCUIT BOARD LAYOUT DIMENSIO

33、NS （） （寸法図） 55.2 2 62.2 256.6 302.5 300 Unit （単位） : mm MW8CX Bottom case assembly （Ass y） MAIN8UMAIN part (MW8CX) MAIN10UMAIN part (MW10C) MAIN8UJACK part (MW8CX) DSP USB (MW8CX only) MAIN10UJACK part (MW10C) MW8CX/MW10C 10 Channels 1 and 2 (Monaural) MW8CX Channels 3/4 and 5/6 (Stereo) Channels 7/8

34、 (7/8 and 9/10) (Stereo) ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? PANEL LAYOUT q MIC Input Jacks (CHs 1 to 5/6) w LINE Input Jacks (CHs 1, 2) e LINE Input Jacks (CHs 3/4 to 7/8 (CHs 3/4 to 9/10) r LINE Input Jacks (CH 7/8, (CHs 7/8, 9/10) t INSERT Jacks (CHs 1, 2) y GAIN Control u 80 Switch (

35、High Pass Filter) i COMP Control o PEAK Indicator !0 Equalizer (HIGH, MID, and LOW) !1 EFFECT (AUX) Control !2 PAN Control (CHs 1, 2) PAN/BAL Control (CHs 3/4, 5/6) BAL Control (CH 7/8 (CHs 7/8, 9/10) !3 Level Control Channel Control Section （部） The following applies to both the MW8CX and MW10C. In

36、cases where different features need to be described for each model, the MW8CX feature will be described fi rst, followed by the MW10C feature in brackets: MW8CX (MW10C). （以下 MW8CX MW10C 共通説明。名称異場合、MW8CX (MW10C) 表記。 ） （） q MIC 入力端子 (CH1 5/6) w LINE 入力端子 (CH1、2) e LINE 入力端子 (CH3/4 7/8、(CH3/4 9/10) r L

37、INE 入力端子 (CH7/8 (CH7/8、9/10) t INSERT 端子 (CH1、2) y GAIN u 80 ( ) i COMP o PEAK !0 EQ ( : HIGH、MID、LOW) !1 EFFECT (AUX) !2 PAN (CH1、2) PAN/BAL (CH3/4、5/6) BAL (CH7/8 (CH7/8、9/10) !3 LEVEL 11 MW8CX/MW10C ? ? ? ? ? ? ? ? ? ? ? ? ? MW8CX Master Control Section （部） q 2TR IN Jacks w REC OUT (L, R) Jacks e

38、 RETURN L (MONO), R Jacks r SEND EFFECT (AUX) Jack t STEREO OUT (L, R) Jacks y MONITOR (L, R) Jacks u PHONES Jack i PHANTOM +48 V Switch o RETURN Control !0 POWER Indicator !1 Level Meter !2 2TR IN/USB 2TR IN/USB Switch 2TR IN/USB control !3 MONITOR/PHONES Control !4 STEREO Master Control q 2TR IN 端

39、子 w REC OUT (L、R) 端子 e RETURN L (MONO)、R 端子 r EFFECT (AUX) SEND 端子 t STEREO OUT (L、R) 端子 y MONITOR (L、R) 端子 u PHONES 端子 i PHANTOM +48 V o RETURN !0 POWER !1 !2 2TR IN/USB 出力先切替 2TR IN/USB !3 MONITOR/PHONES !4 STEREO MW8CX/MW10C 12 ? ? ? ? ? ? MW8CX Digital Effect （部） Rear Input/Output Section （部） Di

40、gital Effect q FOOT SWITCH Jack w PROGRAM Dial e PARAMETER Control r ON Switch t EFFECT RTN Control Rear Input/Output Section q POWER Switch w AC ADAPTOR IN Connector e USB Connector * Only the MW8CX has digital effects. （機能 MW8CX 内蔵。 ） 部 q FOOT SWITCH 端子 w PROGRAM 選択 e PARAMETER r ON t EFFECT RTN 部

41、 q 電源 w AC ADAPTOR IN 端子 e USB 端子 13 MW8CX/MW10C 端子一覧 * 端子端子使用。場合、。 入出力端子名端子極性端子形状 MIC INPUT 1: 2: (+) 3: () LINE INPUT() STEREO OUT、MONITOR、EFFECT (AUX)* : (+) : () : INSERT : Output : Input : PHONES : L : R : RETURN LINE INPUT () : : OUTPUTINPUT XLR端子 TRS端子 端子 * These jacks will also accept connec

42、tion to monaural phone connectors. If you use monaural plugs, the connection will be unbalanced. Input and Output JacksPolarities Confi gurations MIC INPUT Pin 1: Ground Pin 2: Hot (+) Pin 3: Cold (-) LINE INPUT (stereo channels) STEREO OUT, MONITOR, EFFECT (AUX)* Tip: Hot (+) Ring: Cold (-) Sleeve:

43、 Ground INSERT Tip: Output Ring: Input Sleeve: Ground PHONES Tip: L Ring: R Sleeve: Ground RETURN LINE INPUT (monaural channels) Tip: Hot Sleeve: Ground OUTPUTINPUT XLR Connector TipSleeve Ring TRS Phone Connector TipSleeve Phone Connector Jack List MW8CX/MW10C 14 GENERAL SCHEMATIC DIAGRAM（総組立配線図） 1

44、. AC 束線（WH54770）処理 (a). 線材 3 本束、基板部品面側 20 mm （：300） 固定。 (b). 固定線材 POWER SW 方向倒。 線材倒、端子掛 注意。 1. Processing Method of AC Connector As- sembly (WH54770) (a). Bundle three wires and fi x them with the cord holder (location: 300) at a position 20 mm away from the component side of the circuit board. (b).

45、 Incline the bundled wires in the direction of the POWER switch. Handle the wires carefully so that too much stress is not applied to the connector terminals when inclining the wires. 20 mm POWER switch（電源） Cord holder（） Location: 300（: 300） Incline the fixed wires in the direction of the POWER swit

46、ch. （固定線材電源方 向倒。 ） 2. Processing Method of USBMW10C Con- nector Assembly (WK17880) 2-1 Connect the USBMW10C connector assembly to the USB circuit board in advance. 2. USBMW10C 束線（WK17880）処理 2-1 事前 USBMW10C 束線 USB 接続 。 USBMW10C connector assembly （USBMW10C束線） Location: 25（: 25） USB circuit board（USB）

47、 Location: 20（: 20） 15 MW8CX/MW10C 2-2 MAIN8U (MAIN10U) 角穴 USBMW10C 束線通。 USBMW10C connector assembly （USBMW10C束線） Location: 25（: 25） MAIN8U (MAIN10U) circuit board （MAIN8U （MAIN10U） ） Location: 90（: 90） （MAIN8U （MAIN10U） 角穴 USBMW10C束線通。 ） Pass the USBMW10C connector assembly through the rectangle ho

48、le of the MAIN8U (MAIN10U) circuit board. 2-3 USBMW10C 束線 MAIN8U (MAIN10U) CN701 接続。 USBMW10C connector assembly （USBMW10C束線） Location: 25（: 25） （USBMW10C束線MAIN8U （MAIN10U） CN701接続。 ） Connect the USBMW10C connector assembly to the CN701 of the MAIN8U (MAIN10U) circuit board. USBMW10C connector assem

49、bly （USBMW10C束線） Location: 25（: 25） Cord holder（） Location: 300（: 300） （USBMW10C束線 放熱板固定。 ） （余部分。 ） Fix the USBMW10C connector assembly to the radiator plate with the cord holder (location: 300). Cut off the excess portion. 2-4 USBMW10C 束線 （ ：300）放熱板固定。 2-2 Pass the USBMW10C connector assembly through the rectangle hole of the MAIN8U (MAIN10U) circuit board. 2-3 Connect the USBMW10C connector assembly to the CN701 of the MAI