Alesis-MULTIMIX16USB-mix-sm维修电路原理图.pdf

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1、Confidential Alesis Service Manual 8-31-0157-A ALESIS MultiMix 16 USB (XU7) Service Manual P/N: 8-31-0157-A The information in this document contains privileged and confidential information. It is intended only for the use of those authorized by Alesis. If you are not the authorized, intended recipi

2、ent, you are hereby notified that any review, dissemination, distribution or duplication of this document is strictly prohibited. If you are not authorized, please contact Alesis and destroy all copies of this document. You may contact Alesis at or at . Copyright Alesis, LLC ATTENTION! THIS DOCUMENT

3、 CONTAINS SENSITIVE PROPRIETARY INFORMATION. ALL RECIPIENTS MUST HAVE A CURRENT NON-DISCLOSURE AGREEMENT ON FILE WITH ALESIS, LLC. DO NOT MAKE ILLEGAL COPIES OF THIS DOCUMENT RadioFans.CN 收音机爱 好者资料库Confidential Alesis Service Manual 8-31-0157-A Preface This document is intended to assist the service

4、 technician in the operation, maintenance and repair of the Alesis device. Together with the User Reference Manual, this document provides a complete description of the functionality and serviceability of the Device. Any comments or suggestions you may have pertaining to the document are welcome and

5、 encouraged. READ THIS! In addition to any purchase price that Alesis may charge as consideration for Alesis selling or otherwise transferring this service manual (“Manual”) to you, if you are not a service and repair facility (“Service Center”) authorized by Alesis in writing to be an authorized Se

6、rvice Center, Alesis sells or transfers the Manual to you on the following terms and conditions: Only Service Centers authorized by Alesis in writing are authorized to perform service and repairs covered by an Alesis warranty (if any), and transfer of the Manual to you does not authorize you to be a

7、n authorized Service Center. Therefore, if you perform, or if the Manual is used to perform, any service or repairs on any Alesis product or part thereof, any and all warranties of Alesis as to that product and any service contract with Alesis for that product shall be voided and shall no longer app

8、ly for such product, even if your services or repairs were done in accordance with the Manual. All service or repairs done by you or with reference to the Manual shall be solely your responsibility, and Alesis shall have no liability for any such repairs or service work. All such service or repairs

9、are performed at the sole risk of the person performing the service or repairs. You agree that all such work will be performed in a competent, professional and safe manner at all times and to indemnify and fully hold Alesis and its successors and assigns harmless in the event of any failure to so pe

10、rform. Your purchase of the Manual shall be for your own ultimate use and shall not be for purposes of resale or other transfer. As the owner of the copyright to the Manual, Alesis does not give you the right to copy the Manual, and you agree not to copy the Manual without the written authorization

11、of Alesis. Alesis has no obligation to provide to you any correction of, or supplement to, the Manual, or any new or superseding version thereof. Alesis shall have the right to refuse to sell or otherwise transfer repair parts or materials to you in its sole discretion. You shall not use, sell or ot

12、herwise transfer spare or replacement parts supplied by Alesis to you (i) to repair or be used in products manufactured for or by third parties or (ii) to any third parties for any purpose. You shall not make any warranties or guarantees with respect to the products of Alesis or the use thereof on b

13、ehalf of Alesis or in your own name. The foregoing describes the entire understanding related to sale or transfer of the Manual to you, and no other terms shall apply unless in a writing signed by an authorized representative of Alesis. All Trademarks are property of their respective companies. Radi

14、oFans.CN 收音机爱 好者资料库Confidential Alesis Service Manual 8-31-0157-A Warnings TO REDUCE THE RISK OF ELECTRIC SHOCK OR FIRE, DO NOT EXPOSE THIS PRODUCT TO WATER OR MOISTURE. The arrowhead symbol on a lightning flash inside a triangle is intended to alert the user to the presence of un-insulated dangerou

15、s voltage within the enclosed product which may be of sufficient magnitude to constitute a risk of electric shock to persons. The exclamation point inside a triangle is intended to alert the user to the presence of important operating, maintenance and servicing instructions in the literature which a

16、ccompanies the product. REPAIR BY ANY PERSON OR ENTITY OTHER THAN AN AUTHORIZED ALESIS SERVICE CENTER WILL VOID THE ALESIS WARRANTY. PROVISION OF THIS MANUAL DOES NOT AUTHORIZE THE RECIPIENT TO COMPETE WITH ANY ALESIS DISTRIBUTOR OR AUTHORIZED REPAIR SERVICE CENTER IN THE PROVISION OF REPAIR SERVICE

17、S OR TO BE OR MAKE REPAIRS AS AN AUTHORIZED SERVICE CENTER. ALL REPAIRS DONE BY ANY ENTITY OTHER THAN AN AUTHORIZED ALESIS SERVICE CENTER SHALL BE SOLELY THE RESPONSIBILITY OF THAT ENTITY, AND ALESIS SHALL HAVE NO LIABILITY TO THAT ENTITY OR TO ANY OTHER PARTY FOR ANY REPAIRS BY THAT ENTITY. Regardi

18、ng the Power Supply Fuse CAUTION: The product under service may employ the use of a replaceable fuse. Danger of fire or electrocution if fuse is incorrectly replaced. Replace with only the same type or equivalent type recommended by the equipment manufacturer. Regarding the Internal Battery CAUTION:

19、 The product under service may employ the use of a internal battery. Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type recommended by the manufacturer. Dispose of used batteries according to the manufacturers instruction. RadioFans.CN 收音机爱 好者资料库Con

20、fidential Alesis Service Manual 8-31-0157-A Safety Instructions Carefully read the applicable items of the operating instructions and these safety suggestions before using this product. Use extra care to follow the warnings written on the product itself and in the operating instructions. Keep the op

21、erating instructions and safety suggestions for reference in the future. 1. Power Source. The product should only be connected to a power supply which is described either in the operating instructions or in markings on the product. 2. Power Cord Protection. AC power supply cords should be placed suc

22、h that no one is likely to step on the cords and such that nothing will be placed on or against them. 3. Periods of Non-use. If the product is not used for any significant period of time, the products AC power supply cord should be unplugged from the AC outlet. 4. Foreign Objects and Liquids. Take c

23、are not to allow liquids to spill or objects to fall into any openings of the product. 5. Water or Moisture. The product should not be used near any water or in moisture. 6. Heat. Do not place the product near heat sources such as stoves, heat registers, radiators or other heat producing equipment.

24、7. Ventilation. When installing the product, make sure that the product has adequate ventilation. Improperly ventilating the product may cause overheating, which may damage the product. 8. Mounting. The product should only be used with a rack which the manufacturer recommends. The combination of the

25、 product and rack should be moved carefully. Quick movements, excessive force or uneven surfaces may overturn the combination which may damage the product and rack combination. 9. Cleaning. The product should only be cleaned as the manufacturer recommends. 10. Service. The user should only attempt t

26、he limited service or upkeep specifically described in the operating instructions for the user. For any other service required, the product should be taken to an authorized service center as described in the operating instructions. 11. Damage to the Product. Qualified service personnel should servic

27、e the unit in certain situations including without limitation when: a. Liquid has spilled or objects have fallen into the product, b. The product is exposed to water or excessive moisture, c. The AC power supply plug or cord is damaged, d. The product shows an inappropriate change in performance or

28、does not operate normally, or e. The enclosure of the product has been damaged.RadioFans.CN 收音机爱 好者资料库 Multimix 16 USB Key Features Three Models: Multimix 16 USB (8 mic/line preamps, 4 stereo inputs) Clean and powerful preamps up to 50dB of preamp gain for capturing quiet sources. Globally switched

29、phantom power. 4 Stereo inputs Great for line-level instruments. Internal digital effects processor with 100 preset effects and an easy-to-read display includes a variety of reverbs, delays, choruses, flanges, a pitch transposer and multiple combinations of these. 3-band EQ per channel a potent tool

30、 for sonically shaping each channel to get that perfect mix. 1 pre/post-fader aux send per channel (switchable) gives you control over the level of the pre- or post-fader signal being routed to an external device. 1 post-fader aux send/effects send per channel a control for the signal being routed t

31、o another external device or to the onboard effects processor. Control room output level provides control over the separate control room output 2-track send and return lets you mix your audio to tape or other media and to add a tape deck or CD player to the mix. Stereo USB input and output routes th

32、e main output and the 2-track return through the USB port in crystal- clean, 16-bit, 44.1 kHz stereo digital audio. Use the Multimix USB as a high-quality soundcard for recording and playback with Windows and Macintosh computers. Specifications For the more technical-minded, here are some detailed s

33、pecifications for the MultiMixs operating levels. Input Channels Mic In Sensitivity Range: -60dBu to 10dBu nominal, +5dBu Maximum Line In Sensitivity Range: -40dBu to -+10dBu nominal, +25dBu maximum Mic/Line Gain Range: +10 to +60dB Equalization High-Pass Filter: 75Hz, 18dB/octave High Shelving: 12k

34、Hz, +/- 15dB Mid Bandpass/Band Reject: 2.5 kHz, +/- 15dB Low Shelving: 80Hz, +/- 15dB Aux Sends Aux Send A & B Gain Range:- to +10dB Aux Returns Aux Return A Gain Range:- to +15dB Effects Level/ Aux Return B Gain Range:- to +15dB Channel Levels Channel Level Gain Range: - to +10dB Master Levels Main

35、 Mix, Ctrl Room Gain SERVICE MANUAL MODEL:MULTIMIX 16USB Range: - to +10dB 1/4” Inputs Stereo Aux Return Level: +4dBu nominal, +20dBu maximum RCA Inputs Tape In Level: -10dBV nominal, +5dBV maximum 1/4” Outputs Main Mix, Ctrl Room, Aux 3/4, Ext Aux Send Level: +4dBu nominal, +20dBu maximum Headphone

36、 Output: 75 ohm output impedance 105mW into 75 ohms, 40mW into 600ohms RCA Outputs Tape Out Level: -10dBV nominal, +5dBV maximum PACKING DIAGRAM (US/EU/UK/AUS NZ) Confidential Alesis Service Manual 8-31-0157-A ALESIS MultiMix 16 USB (XU7) SCHEMATIC AND PCB FILES DISASSEMBLY PROCEDURES 1. REMOVAL OF

37、TOP PANEL/BOTTOM PANEL (Fi g .1) (A) TAKE OUT THE 14 PCS SCREW FROM WHICH THE TOP PANEL (B) TAKE OUT THE 10 PCS SCREW FROM WHICH THE BOTTOM PANEL (Fi g .1) 2. REMOVAL OF MAIN P.C.B (Fi g .2) (A) REMOVE THE 89 PCS KNOB FROM WHICH THE TOP PANEL (B) REMOVE THE 54 PCS NUT AND 25 PCS WASHER FROM WHICH TH

38、E TOP PANEL (C) REMOVE THE 24 PCS SCREW FROM WHICH THE TOP PANEL (Fi g .2) 3.REMOVAL OF POWER P.C.B (Fi g .3) (A) REMOVE THE 2 PCS SCREW FROM THE POWER P.C.B (B) REMOVE THE 2 PCS SCREW FROM THE BRACKET (C) REMOVE THE 3 PCS OF CABLE CONNECTOR FROM THE POWER P.C.B (D) REMOVE THE 2 PCS SCREW FROM THE U

39、SB P.C.B (Fi g .3) WIRING DIAGRAM (US/EU/UK/AUS NZ) EXPLODE DIAGRAM (US/EU/UK/AUS NZ) SEQUENCIAL NO OF EXPLODE DIAGRAM WILL BE MARKED ON REF. COLUMM OF BOM LIST 8877665544332211DDCCBBAAFor Development ONLYb c d e fg pM_LED1123a567 89104XAXAXMICONPPMICON_DSP for XA/XU SERIESA333Tuesday, September 16,

40、 2003TitleSizeDocument NumberRevDate:SheetofM_C3220uf/16VM_R1547M_IC187C521234567891011121314151640414243441728393736353433323130181920212223242526272938P1.5P1.6P1.7RSTP3.0/RXDNC1P3.1/TXDP3.2P3.3P3.4P3.5WRRDXTAL2XTAL1VSSP1.0P1.1P1.2P1.3P1.4NC2NC3NC4P0.0P0.1P0.2P0.3P0.4P0.5P0.6P0.7P2.0P2.1P2.2P2.3P2.

41、4P2.5P2.6P2.7PSENALEEAVCCM_IC2AL320112345678910111213141516DAC_OUTINT/EXTXTAL1XTAL2P0/DATAP1/CLKP2P3WORDCLKBITCLKSYSCLKRESETGND3V_BYPASSVCCADC_INM_TE1CON6P134562M_R15100nM_R5100nM_R1447M_R447M_R2470M_R3470M_TE2134562M_R1100M_C2100nM_R13220M_R10220M_R12220M_R9220M_R8220M_R7220M_M112MHzM_TE3CON6P13456

42、2M_C1100nM_R6220M_R11220M_Q1BC857BM_Q2BC857BM_R16100M_R171008877665544332211DDCCBBAA111098123414774AHCU04Coax SPDIF5612NCDIGITAL PCBPU2PU2PU2PU213V+15V-15XU6/XU6 POWERDigital Out for XU6/XU7A200Monday, August 30, 2004TitleSizeDocument NumberRevDate:Sheetof+5VV-15V+15+-PU3BTL08465117+-PU3ATL0842341PL

43、3BEADPC2610nPU4AL110112345678910111213141516INL+INL-AGREF+REF-VDDGFRMTWCDOUTDGAGVAMIDINR-INR+PC153300pFPC313300pFPR28470PC1610nPR11470PR1310KPR1410KPR7330PC2547uF/16VPC2647uF/16VPR10330PR16470PC2210nPC4447uF/16VPC3347uF/16VPR9330PR12330PR2010KPR1510KPC2747uF/16V+-PU3DTL084131214+-PU3CTL0849108PC2447

44、uF/16VPR172K7PR182K7PC3210nPR2610KPL20RPR30390PTE3CON2P2021PC28100nPU1CS8405A12345678910111213141516232625282720191718222421COPY/CVL2+EMPHSFMT0SFMT1VD+GNDGNDRSTAPMSTCBLDILRCKISCLKSDINTCBLCENVL+TXPTXNORIGVL4+VL3+AUDIOVUGNDH/SOMCKPC34100nPTE12CON3P20123PL1BEADPR8390C56220pFR780100PR2110KPR24100PC23100

45、nPC43100nPR22100PR231MPC1933pFPC1333pFPC17100nPM212.288MHzPM111.2896MHzPJ1CON3P20123PTE10CON3P20123PD12DIODEPR2510KS01PHANTOMPC647uF/50VPR110IPD947VPC5100uF/100VPC347uF/100VPC447uF/100VPD11N4002PD21N4002PD41N4002PD31N4002PR210KIPD51N4002PC747uF/50VPIC5BD239CPIC87815123OGIPD91N4002PD81N4002PC91000uF/

46、35VPIC37915123OGIDR2390KIDR120KIPC12100uF/35VPD71N4002PTE1CON2P2021PC111000uF/35VPIC77805123OGIPC38.1uFPC39.1uFPC847uF/25VPC1047uF/25VPTE2CON8P2012345678SWPOWER SWPC2947uF/25VPC1847uF/16VPC140.1uFPC210.1uFPTE3CON4P201234PTE4CON3P20123PIC67805123IGO+48VV+15V-15V+5DGAGD5VAGAC18VAC18V+5v887766554433221

47、1DDCCBBAAGAINCH FADERPAN123123AUX B LEVELAUX A LEVELMONO INPUT(1-4)CHANNELSSTEREO INPUTAUX B LEVELAUX A LEVELPOSTPREPFLPOSTChannel 4Channel 3Channel 2Channel 1MIC3MIC2MIC1R534R546C230J12R545C3R544C238R81C56C79C237R40C257R41R83C57Q5Q25R80C259321R554R84R555C82C80Q26Q6R112D26R562R563D27C81R571C109IC12A

48、R570C284R163C258C243R165IC12BC286R56SW3R139C120C285R79R198R238VR15C339VR24R240R239C311R164R197R199VR7C340C146C353IC20BC378R274C138VR593R476R325C137C386IC20AC166R304VR51VR51SW27R454LED24R403R404R402SW17SW17D15R367Q14R368Q15C397R370VR33VR42R326R303LED32R369R455R366SW7SW27LINE 3LINE 2LINE 1D7D3R533R532

49、R543R540R542R539C229C228C236C234C2C1R541R538J11J10C254C251R39R37R38R36C235C233R78R73R76R71C54C52C55C53C75C71D1Q23Q21Q3Q1R75R70D24D22R560R558C77C73R561R559D25D23R111R110Q4Q2VR2VR1C256C253R552R550R79R74R553R551D6D5C78C74C76C72Q24Q22R569R567C108C107IC10AIC11AR568R566R160R157C281C278SW2SW1R55R54C242C241

50、C255C252C282C279R159IC10BC119C118R138R137C283C280R74R72C310C308VR6VR5C309C307R195R192C326C324R161R158R194R191VR14VR13VR23VR22R235R232R196R193C338C336C325C323C337C335R237R234R236R233C352C351C145C144IC19BIC18BC136C134R273R272C377C376R362R356R363R358Q12Q10VR58VR57C135C133IC19AIC18AC385C384R475R322R319R