Yamaha-MW10-mix-sm 维修电路原理图.pdf

《Yamaha-MW10-mix-sm 维修电路原理图.pdf》由会员分享，可在线阅读，更多相关《Yamaha-MW10-mix-sm 维修电路原理图.pdf（71页珍藏版）》请在收音机爱好者资料库上搜索。

1、SERVICE MANUALHAMAMATSU, JAPANCopyright (c) Yamaha Corporation. All rights reserved. PDF 06.02PA011816 CONTENTS（目目目目目次次次次次）SPECIFICATIONS（総合仕様） . 3/5DIMENSIONS（寸法図） . 7CIRCUIT BOARD LAYOUT（） . 7WIRING（結線図） . 8PANEL LAYOUT（）. 9DISASSEMBLY PROCEDURE（分解手順）. 12LSI PIN DESCRIPTION（LSI 端子機能表） . 16IC BLOCK

2、 DIAGRAM （IC図） . 16CIRCUIT BOARDS（基板図）. 17INSPECTIONS（検査） . 26/37BLOCK DIAGRAM & LEVEL DIAGRAM （）OVERALL CIRCUIT DIAGRAM（総回路図）PARTS LIST20060225-RadioFans.CN 收音机爱 好者资料库2MW10WARNING: CHEMICAL CONTENT NOTICE!The solder used in the production of this product contains LEAD. In addition, other electrical

3、/electronic and/or plastic (Whereapplicable) components may also contain traces of chemicals found by the California Health and Welfare Agency (and possiblyother entities) to cause cancer and/or birth defects or other reproductive harm.DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS

4、 IN YOUR MOUTH FOR ANY REASON WHAT SO 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

5、before handling food.IMPORTANT NOTICEThis manual has been provided for the use of authorized Yamaha Retailers and their service personnel. It has been assumed thatbasic service procedures inherent to the industry, and more specifically Yamaha Products, are already known and understood by theusers, a

6、nd have therefore not been restated.WARNING:Failure to follow appropriate service and safety procedures when servicing this product may result in per-sonal injury, destruction of expensive components and failure of the product to perform as specified. Forthese reasons, we advise all Yamaha product o

7、wners that all service required should be performed by anauthorized Yamaha Retailer or the appointed service representative.IMPORTANT:This presentation or sale of this manual to any individual or firm does not constitute authorization certifi-cation, recognition of any applicable technical capabilit

8、ies, or establish a principal-agent relationship ofany form.The data provided is believed to be accurate and applicable to the unit(s) indicated on the cover. The research engineering, andservice departments of Yamaha are continually striving to improve Yamaha products. Modifications are, therefore,

9、 inevitableand changes in specification are subject to change without notice or obligation to retrofit. Should any discrepancy appear toexist, please contact the distributors Service Division.WARNING:Static discharges can destroy expensive components. Discharge any static electricity your body may h

10、aveaccumulated by grounding yourself to the ground bus in the unit (heavy gauge black wires connect tothis bus.)IMPORTANT:Turn the unit OFF during disassembly and parts replacement. Recheck all work before you apply power to the unit.Components having special characteristics are marked and must be r

11、eplaced with parts having specification equal to thoseoriginally installed. This applies only to products distributed by Yamaha-Kemble Music (U.K.) Ltd. (2 wires).WARNINGIMPORTANT NOTICE FOR THE UNITED KINGDOMConnecting the Plug and CordIMPORTANT:The wires in this mains lead are coloured in accordan

12、ce with the following code:BLUE : NEUTRALBROWN : LIVEAs the colours of the wires in the mains lead of this apparatus may not correspond with the coloured makings identifying the terminals in your plug proceed as follows:The wire which is coloured BLUE must be connected to the terminal which is marke

13、d 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.Making sure that neither core is connected to the earth terminal of the three pin plug.印商品、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3MW10 S

14、PECIFICATIONS Conditions MIN TYP MAX UNIT Total Harmonic Distortion (THD+N) 20 Hz - 20 kHz +14 dBu 10k ohms, GAIN (MIC to ST OUT) controls at minimum level, all level controls at nominal level 0.1 %Frequency Response(CH INPUT 1-9/10, RETURN, 2TR IN to 20 Hz-20 kHz, nominal output level 1 kHz, 10 k o

15、hms, -3 0 1 dBST OUT, AUX SEND, C-R OUT, REC GAIN controls at minimum level (CH INPUT 1-5/6), all levelOUT) controls at nominal level Equivalent Input Noise (CH INPUT 1-2 MIC) -128 dBu Hum & Noise Residual Output Noise (10 k ohms (ST OUT) -100 dBu Rs=150 ohms, Gain=Maximum (CH ST master control at n

16、ominal level and all channel LEVEL INPUT1-2), Hum & Noise are measured controls at minimum level. (ST OUT) -87 dBu with a -6 dB/octave filter 12.7 kHz; (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

17、S/N) ST master control and one channel LEVEL control at -64 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

18、 to REC OUT, Rs=150 ohms, 64.2 dB GAIN controls at maximum 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

19、 or hard right. CH INPUT 3/4-5/6 LINE to ST OUT, Rs=150 ohms, 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

20、 ST OUT, Rs=150 ohms, 26 dB GAIN controls at maximum level RETURN to ST OUT, Rs=150 ohms 12 dB 2TR IN to ST OUT, Rs=600 ohms 23.8 dBCrosstalk (1 kHz) Adjacent inputs -70 dB input to output -70 dBWhere 0 dBu = 0.775 VrmsOutput impedance of signal generator: 150 ohms Electrical Characteristics Monaura

21、l/Stereo CH High Pass Filter 80 Hz 12 dB/octave Monaural/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

22、ON. (XLR-type input jacks) Monaural/Stereo Input PEAK Indicator 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 adapto

23、r (PA-10), CD-ROM, USB cable Power Consumption 19 W Dimensions (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 Specifications4MW10 Input Connector Gain Input Appropriate Sensitivity* Nominal Max. Befor

24、e Connector Impedance Impedance Level Clipping Specifications -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 INP

25、UT 10 k ohms 600 ohms line (3.88 mV) (15.5 mV) (155 mV) (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

26、(R) -16 -28 dBu -16 dBu -10 dBu (balanced) (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 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 -1

27、0 dBu +10 dBu Phone jack (CH7(L)/CH8(R), 10 k ohms 600 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

28、) 10 k ohms 600 ohms line -8 dBu +4 dBu +24 dBu Phone 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

29、output of +4 dBu (1.23V) or the nominal output level 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 O

30、UT (L, R) 150 ohms 10 k ohms line +4 dBu (1.23 V) +20 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 oh

31、ms line 0 dBu (0.775 V) +20 dBu (7.75 V) (unbalanced 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

32、) PHONES 100 ohms 40 ohms phone 3 mW 75 mW Stereo phone jackWhere 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 Specifications5MW10 総合仕様 、 80 Hz 12 dB/octave 、 15 dB ( 最大可変幅

33、) / 周波数：最大可 HIGH：10 kHz ( ) 変幅対3 dB 下 MID：2.5 kHz ( ) 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

34、) 20 Hz - 20 kHz +14 dBu 10k ohms、 (MIC ST OUT) GAIN 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 d

35、Bu (CH INPUT 12)、12.7 kHz、 全LEVEL 最小(ST OUT) (91 dB 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

36、 最大 CH INPUT 1 5/6 MIC REC OUT、Rs=150 ohms、 64.2 dB 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

37、=150 ohms、 41 dB GAIN 最大、PRE CH INPUT 3/4 5/6 LINE 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 dB0 dBu = 0.775 Vrms出力150 ohms 電気的特性6MW10 入力端子名称 入力 適合 感度*1 最大

38、端子仕様 -60 -72 dBu -60 dBu -40 dBu MIC INPUT 3 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 dB

39、u +30 dBu R：、 (0.615 V) (2.45 V) (24.5 V) S：） 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

40、), 10 k ohms 600 ohms (3.88 mV) (15.5 mV) (155 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

41、+20 dBu （型 (CH 1, 2) (195 mV) (0.775 V) (7.75 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

42、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, 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 O

43、UT (L, R) 600 ohms 10 k ohms -10 dBV (316 mV) +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7MW10 DIMENSIONS（寸法図）Unit: mm（単位: m

44、m)251290.565 CIRCUIT BOARD LAYOUT（）MAINUSB8MW10 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

45、 that has placed to the PCB Assy 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。 *

46、 Note that the wiring Assy USB10 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 tightening1. Processing method of Wiring Assy AC8 (WD350000) 束線AC8(WD350000)処理(a). Twist Wiring Assy

47、 AC8 three times, and 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 s

48、ervice parts.（束線部品。）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。9MW10 PANEL LAYOUT（） Channel Control S

49、ection（部） Master Control Section（部）qwertyuiqGAIN ControlwPEAK Indicatore Switch (High Pass Filter)rEqualizer (HIGH, MID, and LOW)tAUX ControlsyPAN Control (CHs 1 and 2)PAN/BAL Control (CHs 3/4 and 5/6)BAL Control (CHs 7/8, 9/10)uChannel LEVEL ControlqGAINwPEAKe （）r（ HIGH 、 MID 、 LOW ）tAUXyPAN（CH 1、2

50、）PAN/BAL（CH 3/4、5/6）BAL（CH 7/8、9/10）uLEVELqPHANTOM +48V SwitchwRETURN Controle2TR IN/USB Controlr2TR IN/USB Switch (TO ST / TO C-R)tST Master LEVEL ControlyC-R/PHONES LEVEL ControluLevel MeteriPOWER IndicatorqPHANTOM +48VwRETURNe2TR IN/USBr2TR IN/USB （ TO ST/TO C-R ）tSTyC-R/PHONESuiPOWERChannels1 an