Yamaha-MG-206-C-Service-Manual电路原理图.pdf

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1、SERVICE MANUAL SPECIFICATIONS （総合仕様） .3/5 DIMENSIONS （寸法図）.7 PANEL LAYOUT （） .8 CIRCUIT BOARD LAYOUT （）.11 WIRING DIAGRAM （基板結線図） .12 OVERALL ASSEMBLY WIRING （総組立配線図） .13 DISASSEMBLY PROCEDURES （分解手順） .19 LSI PIN DESCRIPTION （LSI端子機能表） .24 IC BLOCK DIAGRAM （IC図） .24 CIRCUIT BOARDS （基板図） .27 INSPECTI

2、ONS （検査） .37/44 PARTS LIST IC & DIODE FIGURES （外形図） BLOCK & LEVEL DIAGRAM （&） CIRCUIT DIAGRAM （回路図） I CONTENTS （目次） PA011870 Copyright (c) Yamaha Corporation. All rights reserved. 07.08 HAMAMATSU, JAPAN （ECF：無塩素系漂白）使用。 This document is printed on chlorine free (ECF) paper. MG206C: 200708-94290 MG206

3、C-USB: 200708-102690 MG206C-USBMG206C RadioFans.CN 收音机爱 好者资料库 MG206C-USB/MG206C 2 IWARNING Components having special characteristics are marked and must be replaced with parts having specification equal to those originally installed. 印部品、安全維持重要部品。交換場合、安全必指定部品使用。 IMPORTANT NOTICE This manual has been

4、 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, are already known and understood by the users, and have therefore not been restated. WARNING:Failure to

5、 follow appropriate service and safety procedures when servicing this product may result in personal injury, destruc- tion of expensive 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

6、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, certification, recognition of any applicable technical capabilities, or establish a principal-agent relationship o

7、f any form. The data provided is believed to be accurate and applicable to the unit(s) indicated on the cover. The research engineering, and service departments of Yamaha are continually striving to improve Yamaha products. Modifications are, therefore, inevitable and changes in specifica- tion are

8、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 components. Discharge any static electricity your body may have accumulated by grounding yourself to t

9、he 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. WARNING: CHEMICAL CONTENT NOTICE! The solder used in the production of this product contains LEAD. In ad

10、dition, other electrical/electronic and/or plastic (Where applicable) components may also contain traces of chemicals found by the California Health and Welfare Agency (and possibly other entities) to cause cancer and/or birth defects or other reproductive harm. DO NOT PLACE SOLDER, ELECTRICAL/ELECT

11、RONIC OR PLASTIC COMPONENTS 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 t

12、his product, wash your hands before handling food. IMPORTANT NOTICE 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

13、the colours of the wires in the mains lead of this apparatus 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 s

14、afety earth symbol or colored GREEN or colored GREEN and YELLOW. 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

15、. RadioFans.CN 收音机爱 好者资料库 MG206C-USB/MG206C 3 ISPECIFICATIONS Electrical Specifications General Specifications MG206C-USB/MG206C 4 Analog Input Specifications Analog Output Specifications Digital Input/Output Specifications (MG206C-USB only) MG206C-USB/MG206C 5 総合仕様 電気的特性 一般仕様 MG206C-USB/MG206C 6 入力

16、仕様 出力仕様 入出力仕様（MG206C-USB） MG206C-USB/MG206C 7 IDIMENSIONS （寸法図） Unit: mm 単位：mm 444 478 102 98 5 496 43 41 488.5 MG206C-USB MG206C-USB/MG206C 8 IPANEL LAYOUT （） Channel Control Section （部） MIC Input Jacks LINE Input Jacks (monaural channels) LINE Input Jacks (stereo channels) LINE Input Jacks (stereo

17、 channels) INSERT Jacks GAIN Control 80 Switch (High-Pass Filter) COMP Control PEAK Indicator Equalizer (HIGH, MID and LOW) AUX, EFFECT Control AUX PRE Switch PAN Control PAN/BAL Control BAL Control ON Switch PFL (Pre-Fader Listen) Switch 1-2 Switch 3-4 Switch ST Switch Channel Fader 1 2 3 4 5 6 7 8

18、 9 0 A B C D E F G H I 1 2 3 4 5 6 7 8 9 0 A B C D E F G H I MIC入力端子 LINE入力端子 （） LINE入力端子 （） LINE入力端子 INSERT端子 GAIN 80 （） COMP PEAK EQ （：HIGH、MID、LOW） AUX、EFFECT AUX PRE PAN PAN/BAL BAL ON PFL 1-2 3-4 ST 1 2 1 5 66 CC DD F G H F G H II EE 0 A 99 77 8 0 A BB 43 Channels 13/14 and 15/16 (Stereo) 13/14

19、、15/16 （） Channels 1 to 8 (Monaural) 18 （） Channels 9 to 12 (Monaural) 912 （） Channels 17/18 and 19/20 (Stereo) 17/18、19/20 （） MG206C-USB/MG206C 9 Master Control Section （部） 1 2 3 4 5 6 7 8 9 0 A B C D E F G H I J K L USB Connector (MG206C-USB only) SEND Jacks (AUX, EFFECT) GROUP OUT (1 to 4) Jacks

20、REC OUT (L, R) Jacks 2TR IN Jacks RETURN L (MONO), R Jacks STEREO OUT (L, R) Jacks XLR Jacks LINE Jacks MONITOR OUT Jacks PHONES Jack PHANTOM +48 V Switch POWER Indicator Level Meter RETURN AUX1, AUX2 Control STEREO Control Master SEND Controls (AUX, EFFECT) MONITOR/PHONES MONITOR Switches MONITOR C

21、ontrol 2TR IN (MG206C) 2TR IN/USB (MG206C-USB) 2TR IN/USB Switch 2TR IN/USB Control GROUP 1-2 Fader GROUP 3-4 Fader ST Switch STEREO OUT Master Fader POWER Switch AC ADAPTOR IN Connector 1 2 3 4 5 6 7 8 9 0 A B C D E F G H I J K L USB端子 （MG206C-USB） SEND端子 （AUX、EFFECT） GROUP OUT （1-4） 端子 REC OUT （L、

22、R） 端子 2TR IN端子 RETURN L （MONO） 、R端子 STEREO OUT （L、R） 端子 XLR端子 LINE端子 MONITOR OUT端子 PHONES端子 PHANTOM +48 V POWER RETURN AUX1、2 STEREO SEND （AUX、EFFECT） MONITOR/PHONES 信号切替 2TR IN （MG206C） 2TR IN/USB （MG206C-USB） 出力先切替 2TR IN/USB GROUP 1-2 GROUP 3-4 ST STEREO OUT 電源 AC ADAPTOR IN端子 A B J E F D 0 C 7 9

23、 8 I G H 1 3 6542Rear panel KL MG206C-USB/MG206C 10 Connector Polarities 端子接続極性 Input and Output JacksPolarities Confi gurations MIC INPUT, STEREO OUT Pin 1: Ground Pin 2: Hot (+) Pin 3: Cold () LINE INPUT (monaural channels) GROUP OUT, STEREO OUT, MONITOR OUT, AUX SEND Tip: Hot (+) Ring: Cold () Sl

24、eeve: Ground INSERT Tip: Output Ring: Input Sleeve: Ground PHONES Tip: L Ring: R Sleeve: Ground RETURN LINE INPUT (stereo channels) Tip: Hot Sleeve: Ground OUTPUTINPUT XLR Jack TipSleeve Ring TRS Phone Jack TipSleeve Phone Jack 入出力端子名端子極性端子形状 MIC INPUT、STEREO OUT LINE INPUT（） GROUP OUT、STEREO OUT、 M

25、ONITOR OUT、AUX SEND INSERT PHONES RETURN LINE INPUT（） OUTPUTINPUT TRS端子 1： 2：（+） 3：（） ：（+） ：（） ： ：Output ：Input ： ：L ：R ： ： ： 端子 XLR端子 MG206C-USB/MG206C 11 ICIRCUIT BOARD LAYOUT （） Rear （） (MG206C-USB only) Front （） JACK20F JACK20R MIX20 PS20 USB MG206C-USB/MG206C 12 IWIRING DIAGRAM （基板結線図） 7P-110 3

26、P-140 2P-380 9P-140 10P-700 15P-720 1 2 3 4 5 6 (WJ98020) (WJ98040) (WJ98050) (WJ78450) (WJ78460) (WJ78470) MIX20-CN053 PS20-CN101 JACK20F-CN001 PS20-CN102 JACK20R-CN002 PS20-CN103 JACK20R-CN903 USB-CN101 MIX20-CN003 JACK20R-CN003 MIX20-CN004 JACK20R-CN004 Connector Assembly PS7P Connector Assembly

27、PS3P Connector Assembly PS2P Connector Assembly USB20 Connector Assembly REAR10P Connector Assembly REAR15P PS7P束線 PS3P束線 PS2P束線 USB20束線 REAR10P束線 REAR15P束線 40 50 60 100 130 140 MG206C-USB only Remarks 備考 No.Part No. Assembly Name 線材名 Connection 接続 Location CN003 (10P) CN903 (9P) CN002 (2P) CN004 (1

28、5P) CN101 (9P) CN103 (2P) CN102 (3P) CN101 (7P) CN001 (3P) W501 (9P) W601 (9P) W701 (9P) W801 (9P) W001 (6P) W002 (9P) W101 (9P) W201 (9P) W301 (9P) W401 (9P) CN501 (9P) CN601 (9P) CN701 (9P) CN801 (9P) CN001 (6P) CN002 (9P) CN101 (9P) CN201 (9P) CN301 (9P) CN401 (9P)CN053 (7P) CN004 (15P) CN003 (10

29、P) 3 2 5 1 6 4 JACK20R JACK20F PS20USB (MG206C-USB only) MIX20 MG206C-USB/MG206C 13 IOVERALL ASSEMBLY WIRING （総組立配線図） The inside room of this product is very little because a lot of units are installed fully. To prevent the panels coming up and other things when assembling, perform the cable connect

30、ion according to the followings. （、集積度高、内部余裕。 組立時浮等防止為、束線処理下記行。） Note: The components marked “ * ” are used only for MG206C-USB. （注：“” 部品MG206C-USB使用。） 1.The wiring of the Inner Chassis Assembly. （Ass y配線） 1-1. Before installing the JACK20R Ref. 120 circuit board in the inner chassis Assembly Ref. 2

31、0, connect the following connector assemblies to the JACK20R Ref. 120 circuit board and bind the connector assemblies with the cord binder Ref. 180. （Ass y Ref. 20 取付前、JACK20R Ref. 120 下記束線取付、 Ref. 180 結束。） 60 100 * 130 140 Connector Assembly PS2P Connector Assembly USB20 Connector Assembly REAR10P

32、Connector Assembly REAR15P PS2P束線 USB20束線 REAR10P束線 REAR15P束線 Ref. No. Connector Assembly Name 線材名 * CN004 CN002CN903CN003 140 60100130 120 180 Note: Binding position Bind at the end of tape on the connector assembly Rear15P Ref. 140. （注： 結束位置 REAR15P束線 Ref. 140 上端目安結束。） MG206C-USB/MG206C 14 1-2. In

33、stall the heatsink assembly Ref. 30, USB assembly * Ref. 90 and JACK20R circuit board Ref. 120 in the inner chassis assembly Ref. 20. （Ass y Ref. 30 、 USB Ass y Ref. 90 、JACK20R Ref. 120 Ass y Ref. 20 取付。） 1-3. Connect the connector assemblies according to the picture below. （下記写真従配線。） *100*90 30 CN

34、103 60 CN102 50 CN101 40 120 20 180 180 Note: Fix the connector assembly PS2P Ref. 60, connector assembly REAR10P Ref. 130 and connector assembly REAR15P Ref. 140 with the cord binder Ref. 180. （注： PS2P束線 Ref. 60 REAR10P束線 Ref. 130 REAR15P束線 Ref. 140 Ref. 180 固定。） Note: Twist connector assemblies th

35、ree times in this section. （注： 区間、束線3回。） Note: Fix the connector assembly REAR10P Ref. 130, connector assembly REAR15P Ref. 140, connector assembly PS7P Ref. 40 and connector assembly PS3P Ref. 50 with the cord binder Ref. 180. （注： REAR10P束線 Ref. 130 、REAR15P束線 Ref. 140 、PS7P束線 Ref. 40 、PS3P束線 Ref.

36、50 Ref. 180 固定。） MG206C-USB/MG206C 15 1-4. Install the inner chassis assembly Ref. 20 on the bottom case assembly Ref. 10. （Ass y Ref. 20 Ass y Ref. 10 取付。） 20104050 130 140230Note: Fix the connector assembly REAR10P Ref. 130 and connector assem- bly REAR15P Ref. 140 with the cord holder Ref. 230. （

37、注： REAR10P束線 Ref. 130 REAR15P束線 Ref. 140 束線止 Ref. 230 固定。） Note: Pass the connector assembly REAR10P Ref. 130 and connector assembly REAR15P Ref. 140 through the incision part of inner chassis assembly Ref. 20. At that time, take care the cables not to be slack- ened. （注： REAR10P束線 Ref. 130 REAR15P束

38、線 Ref. 140 、Ass y Ref. 20 切欠 通。時、線材注意。） MG206C-USB/MG206C 16 2.The wiring of the MIX20 circuit board and JACK20F circuit board. （MIX20JACK20F配線） Whole picture （全体写真） 250 50 130 40 140 MIX20 CN003 MIX20 K051 MIX20 K052 MIX20 CN101 MIX20 CN201 MIX20 CN301 MIX20 CN401 MIX20 CN501 MIX20 CN601 MIX20 CN70

39、1 MIX20 CN801 MIX20 CN001 JACK20F CN001 JACK20F K101 MIX20 CN053 MIX20 CN002 MIX20 CN004 340 MG206C-USB/MG206C 17 2-1. Connect the connector assemblies from the inner chassis assembly. （Ass y束線配線。） Macro picture around CN053 on the MIX20 circuit board. （MIX20CN053周辺拡大写真） Ref. 40 Ref. 50 Ref. 130 Ref

40、. 140 Connector Assembly PS7P Connector Assembly PS3P Connector Assembly REAR10P Connector Assembly REAR15P PS7P束線 PS3P束線 REAR10P束線 REAR15P束線 MIX20 circuit boardCN053 JACK20F circuit board CN001 MIX20 circuit boardCN003 MIX20 circuit boardCN004 Final Assembly Location Connector Assembly Name 線材名 Wir

41、ing Point JACK20F CN001 MIX20 CN053 250 340 50 40 JACK20F K101 Note:Pass the connector assembly PS7P Ref. 40 and connector assembly PS3P Ref. 50 through the inci- sion part of JACK20F circuit board Ref. 250. （注：PS7P束線 Ref. 40 PS3P束線 Ref. 50 JACK20F Ref. 250 切欠通。） Note:Fix the connector assembly PS7P

42、 Ref. 40 and connector assembly Ref. 50 with the cord holder. （注：PS7P束線 Ref. 40 PS3P束線 Ref. 50 束線止固定。） MG206C-USB/MG206C 18 Macro picture around the CN003 of MIX20 circuit board. （MIX20CN003周辺拡大写真） 340 130 140 MIX20 K052 MIX20 CN004 MIX20 K051 MIX20 CN003 Note:Pass the connector assembly REAR10P Ref

43、. 130 and connector as- sembly REAR15P Ref. 140 through the incision part of MIX20 circuit board Ref. 340. （注：REAR10P束線 Ref. 130 REAR15P束線 Ref. 140 、MIX20 Ref. 340 切欠通。） Note:Fix the connector assembly REAR15P Ref. 140 with the cord holder. （注：REAR15P束線 Ref. 140 束線止固定 。） Note:Fix the connector assem

44、bly REAR10P Ref. 130 with the cord holder. （注：REAR10P束線 Ref. 130 束線止固定。） 2-2. Connect the ten (10) jumper wires of JACK20F circuit board to the MIX20 circuit board. （JACK20F10本MIX20接続。） Note: Bend the jumper wires according to the picture below. （注： 下記写真従折曲。） Note: After bend, press the jumper wires

45、 so that their height from the MIX20 circuit boards component side become 15 mm or less. （注： 折曲後、MIX20面15mm以下上押。） MG206C-USB/MG206C 19 490500 510 410 400 420 M9 Hexagon nut and washer （M9六角、） 400 430 Top cover （） Top cover （） 400 400 400 400 Screw tighten (3rd) （締 （3番） ） 400 Screw tighten (2nd) （締 （

46、2番） ） 400 Screw tighten (1st) （締 （1番） ） I DISASSEMBLY PROCEDURES （分解手順） 1.Top Cover (Time required: 15 min.) 1-1Remove the sixteen (16) fader knobs marked 490, two (2) fader knobs marked 500 and fader knob marked 510. (Fig. 1) 1-2Remove the fifteen (15) screws marked 400, twenty- one (21) screws mar

47、ked 410, three (3) screws marked 420, six (6) screws marked 430, thirty-seven (37) hex- agonal nuts and thirty-seven (37) washers. (Fig. 1) 1-3The top cover can then be removed. (Fig. 1) *When installing the top cover on the bottom case assembly, tighten the screws in the order shown in Fig. 1. (Fig. 1) 1. （所要時間：15分） 1-1490 FADER16個、 500 FADER2個、 510 FADER外。 （Fig. 1） 1-2400 15本、 410 21本、 420 3 本、 430 6本、六角37個、37 個外。 （Fig. 1） 1-3外。 （Fig. 1） Ass y取付、 Fig. 1示順序締。 （Fig. 1） 400:Bind Head Tapping Screw-B 3x8 MFZN2B3 (WE774400)