Alesis MultiMix 16 USB FX User manual

Confidential Alesis Service Manual
Alesis
MultiMix 16 USB FX
[LXUF]
Service Manual
v1.0
2013.05.09
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 recipient,
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 [email protected].
Copyright Alesis
ATTENTION!
THIS DOCUMENT CONTAINS SENSITIVE
PROPRIETARY INFORMATION.
ALL RECIPIENTS MUST HAVE A CURRENT
NON-DISCLOSURE AGREEMENT ON FILE
WITH ALESIS.
DO NOT MAKE ILLEGAL
COPIES OF THIS DOCUMENT

Confidential Alesis Service Manual
PREFACE
This document is intended to assist the service 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 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 Service 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 an 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 apply 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 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 perform.
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 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 otherwise 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 behalf 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.

Confidential Alesis Service Manual
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 uninsulated "dangerous
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 accompanies 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 SERVICES 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.
Regarding 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: 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 manufacturer's instruction.

Confidential Alesis Service Manual
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 operating 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 such 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 product's
AC power supply cord should be unplugged from the AC outlet.
4. Foreign Objects and Liquids. Take care 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.
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 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 the 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 service 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 does not operate
normally, or
e. The enclosure of the product has been damaged.

Confidential Alesis Service Manual
BOM (Bill of Materials)

Part numbe
r
Part name Description Unit Qt
y
Position
DR001455 RoHS simi-assembled
product:LXUF
LXUF PCS 1
12030032 Rocker switch AN-S332,PS8C-9-B1B3-5H-22 PCS 1
12030010 Rocker switch AN-S311,RA20KKFT0F PCS 1
40060002 DC jack AN-J0602,91M-701-3,(3P male,with nut and gasket) PCS 1
10090365 Top cover DN-MC1120,SECC,T=0.8mm,V1.0 PCS 1
56090016 Top cover DN-MC1120,SECC,T=0.8mm,PANTONE PROCESS
BIUEC,V1.1
PCS 1
10140541 Bottom cover DN-MC5191,SECC,T=0.8mm,V1.0 PCS 1
56140035 Bottom cover DN-MC5191,SECC,T=0.8mm,V1.1 PCS 1
20200038 Switch cap DN-PN1034,ABS,T=1.1mm,PANTONE 5435C,V1.0 PCS 48
20240017 Support post DN-PB3013,ABS,T=1.0mm,PANTONE 5435C,V1.1 PCS 8
20210120 VR cap DN-PN2089,ABS,black V1.0 PCS 2
20210009 VR cap DN-PN2008,D11.2*3.9mm,ABS PCS 1
20210121 VR cap DN-PN2008,D11.2*3.9mm,ABS PCS 1
20210092 Knob DN-PN2065,D10*17.2mm,ABS,black,(P/N:20210014) PCS 85
20210093 VR cap DN-PN2066,D7.10*3.7mm,ABS(PANTONE:2945C) PCS 37
20210094 VR cap DN-PN2067,D7.10*3.7mm,ABS,(PANTONE:1805C) PCS 26
20210095 VR cap DN-PN2068,D7.10*3.7mm,ABS PCS 14
20210016 VR cap DN-PN2013,D7.10*3.7mm,ABS,black PCS 8
20120013 Fader cap DN-PL2011,23.5*12*9.3mm,ABS PCS 13
54120001 Fader cap DN-PL2011,23.5*12*9.3mm,ABS,V1.0 PCS 13
30070033 Non-woven cloth non-woven-1,black,T=0.3MM,78*42mm,V1.0 PCS 6
30070034 Non-woven cloth non-woven-2,black,T=0.3MM,78*16mm,V1.0 PCS 1
20300081 Foot LT-2076 PCS 4
10530029 Iron post DN-MB6029,两端M3螺孔,13mm PCS 16
10080219 Heat sink DN-
MH0143,铝合金,T=2.0mm,表面脱脂处理,112*70mm,V1.0
PCS 1
70010060 Screw M3*6mm,十字圆头,螺头D7.5mm,公制牙平垫,黑锌,加硬 PCS 2
70010034 Screw M3*5mm,十字圆头,螺头D7.5mm,公制牙平垫,黑锌,加硬 PCS 3
70010014 Screw AN-
C10014,M3*4mm,十字圆头,螺头D5.5mm,公制机牙,黑锌,加
硬
PCS 1
LXUF BOM

70010048 Screw AN-
C10048,M3*6mm,十字圆头,螺头D5.5mm,公制机牙,黑锌,加
硬
PCS 52
70010338 Screw Φ2.6*10mm,十字圆头,螺头D4.5mm,自攻小尾牙,黑锌,加硬 PCS 16
70010110 Screw Φ3*10mm,十字圆头,螺头D5.5mm,自攻破尾牙,黑锌,加硬 PCS 1
70010103 Screw M3*10mm,十字平头,螺头D6mm,公制机牙,黑锌,加硬 PCS 4
70090010 Gasket Φ6*Φ3*0.5mm PCS 4
70090009 Gasket AN-C90009,Ф5.6*Ф3.2*0.8mm,弹簧纲,弹垫,黑锌 PCS 4
70070014 Nut Φ6*M3*2.5mm PCS 4
70090108 Gasket 低碳钢,Φ9*Φ6.2*3.5mm,双通无牙,表面电镀白锌处理,V1.0 PCS 3
30010011 Heat-shrink Φ3*20*0.20mm,UL,black PCS 9
16040636 Plug attached cable AN-W4208,2P,22#,UL1007,80mm,黑棕,一端2530H母端,PCS 1
16040637 Plug attached cable AN-
W4209,4P,22#,UL1007,40mm,红红橙橙,一端2530H母端
PCS 1
16040638 Plug attached cable AN-
W4210,3P,22#,UL1007,130mm,棕黑棕,一端2530H母端,
PCS 1
30100033 Insulated sheet 快巴纸,T=0.5,105*50mm,单面背胶.PCS 1
CR010098 RoHS simi-finished
product:LXUF
POWER&USB
LXUF POWER&USB assy PCS 1
11130237 Carbon resistor 1/4W,20KΩ,±5%,brede PCS 1 R434
11130263 Carbon resistor 1/4W,390KΩ,±5%,brede PCS 1 R433
11130193 Carbon resistor 1/4W,100Ω,±5%,brede PCS 2 R426,R432
11130210 Carbon resistor 1/4W,1KΩ,±5%,brede PCS 1 R427
18030164 Zenor diode AN-D30164,DO-35,1N4758A,1W,56V,brede PCS 1 Z1
18010017 Common diode AN-D10017,DO-41,1N4004,brede PCS 9 D1-4,D6-9,D42
18010022 Common diode D-41,FR104,brede PCS 1 D5
14010048 NPN Audion 2SC4793,TO220塑封,TOSHIBA PCS 1 Q24
24100002 Magnetic bead PFR011-08403509,3.5*9*0.8J5C,1.8uH±25%,brede PCS 1 FB1
14040518 IC KIA7815API,TO220IS,塑封,KEC PCS 1 U21
14040749 IC KIA7805CV,TO220塑封,KEC PCS 1 U34
14040519 IC KIA7915PI,TO220IS,塑封,KEC PCS 1 U22
50010068 Creamic cap 104,VDC100,±20%,Y5V,立式圆盆型,brede,brown
OD=8mm
PCS 12 C40,C42,C155,C157,C211,C213,C353-
354,C357-358,C363,C366

17010218 E/C 220uF/25V,±20%,-
40/+105℃,Φ6.3*12mm,P=2.5mm,black,剪脚为4mm
PCS 2 C355-356
17010112 E/C 100uF/16V,±20%,-
40/+85℃,Φ5*11mm,P=2mm,black,剪脚为4mm
PCS 1 C365
17010401 E/C 220uF/35V,±20%,-
40/+105℃,Φ8*12mm,P=3.5mm,black,剪脚为4mm
PCS 1 C212
17010345 E/C 47uF/100V,±20%,-
40/+105℃,Φ10*12,P=5mm,black,剪脚为4mm
PCS 2 C361-362
17010477 E/C 1000uF/35V,-0/+50%,-
40/+85℃,Φ13*20mm,P=5mm,black,不剪脚
PCS 2 C351-352
17010109 E/C 10uF/100V,±20%,-
40/+85℃,Φ6.3*11mm,P=2.5mm,black,剪脚为4mm
PCS 1 C364
17010478 E/C 470uF/100V,±20%,-
40/+85℃,Φ13*30mm,P=5mm,black,不剪脚
PCS 1 C359
17010479 E/C 220uF/63V,±20%,-
40/+85℃,Φ10*16mm,P=5mm,black,不剪脚
PCS 1 C360
40370006 Male jack AN-JP401,HT-2.5-07P-01A PCS 1 TE1A
40370001 Male jack AN-JP401,XH2.5-2P PCS 2 TEU4A , CN1A
40370002 Male jack AN-JP401,XH2.5-3P PCS 1 TEU6
40370003 Male jack AN-JP401,XH2.5-4P PCS 1 TEU3A
10490016 Insert sheet JF-13,13.8*6.3*0.8mm PCS 1 GND
CR010099 RoHS Simi-finished
product:LXUF USB
LXUF USB PCS 1
40370064 Male jack AN-JP406,2533-08,(90 degree,P=2.5mm) PCS 1 J23A
40430001 USB jack AN-J4301,Y11-208,USB BF 90 degree,DIP,Copper shell PCS 1 JU1
25020008 Crystal resonance AN-O208,12MHz,2 pin CRYSTAL HC-49/S,20PF 20PPM. PCS 1 Y1U
17010162 E/C 4.7uF/50V,±10%,-
40/+105℃,Φ5*11mm,P=2mm,black,剪脚为4mm
PCS 1 CU2
17010103 E/C 10uF/25V,±20%,-
40/+85℃,Φ5*11mm,P=2mm,black,剪脚为4mm
PCS 16 C12U,CU35,CU35,C6U,C7U,CU1,CU9-12,CU18
-
19,CU23-24,CU28-29
17010098 E/C 1uF/50V,±20%,-
40/+85℃,Φ5*11mm,P=2mm,black,剪脚为4mm
PCS 1 C30
10490016 Insert sheet JF-13,13.8*6.3*0.8mm PCS 1 GND
24050002 Color code inductor AN-I5002,10uH,±10%,brede PCS 1 LB2
CR010100 RoHS Simi-finished
product:LXUF USB
SMD
LXUF USB SMD Assy PCS 1
26020606 PCB AN-B20446,POWER&USB,FR4 double
layer,58*185.2*1.6mm,1once,oil,V1.4
PCS 1

11170707 SMD resistor 1/8W,3.9KΩ,±1%,0805 PCS 8 RU14-15,RU22-23,RU28-29,RU34-35
11170288 SMD resistor 1/8W,20KΩ,±1%,0805 PCS 2 RU6,RU18
11170011 SMD resistor 1/8W,22Ω,±5%,0805 PCS 2 R12U,R13U
11170111 SMD resistor 1/8W,1MΩ,±5%,0805 PCS 2 R9U,R14U
11170048 SMD resistor 1/8W,1.5KΩ,±5%,0805 PCS 1 RU1
11170022 SMD resistor 1/8W,100Ω,±5%,0805 PCS 4 RU4,RU5,RU7-8
11170045 SMD resistor 1/8W,1.1KΩ,±5%,0805 PCS 2 RU9-10
11170669 SMD resistor 1/8W,5.6KΩ,±1%,0805 PCS 2 RU11,RU19
11170130 SMD resistor 1/8W,0Ω,±1%,0805 PCS 3 RU2-3,R15U
11170284 SMD resistor 1/8W,18KΩ,±1%,0805 PCS 16 RU12-13,RU16-17,RU20-21,RU24-27,RU30-
33,RU36-37
50050059 SMD C/C 102,VDC16,±10%,X7R,0805,brede PCS 2 C19U,C20U
50050116 SMD C/C 221,VDC50,±5%,NPO,0805,brede PCS 8 CU14-15,CU21-22,CU26-27,CU31-32
50050032 SMD C/C 33PF,VDC50,±5%,NPO,0805,brede PCS 2 C21U,C22U
50050075 SMD C/C 104,VDC50,±10%,X7R,0805,brede PCS 6 CU3-6,CU33-34
50050084 SMD C/C 1UF,VDC50,+80/-20%,Y5V,0805, brede PCS 4 C3U,C4U,CU8,C5U
50050068 SMD C/C 103,VDC16,±10%,X7R,0805,brede PCS 1 CU7
50050122 SMD C/C 222,VDC50,±10%,X7R,0805,brede PCS 2 CU16-17
50050138 SMD C/C 331,VDC50,±5%,NPO,0805,brede PCS 4 CU13,CU20,CU25,CU30
14040155 IC NJM4580M,DMP8,JRC PCS 2 U60-61
14040694 IC PCM2900B,SSOP28,TI PCS 1 U39
14040326 IC LP2985AIM5-3.6,SOT23-5,NS PCS 1 U40
18010075 Common diode AN-D10075,LL-34,1N4148,brede PCS 4 D38-41
CR010101 RoHS simi finished
product:LXUF MAIN
LXUF MAIN assy PCS 1
14040160 IC TL431-A,TO92边脚成型,HITACHI PCS 1 Q38
11140569 Metal film resistor 1/2W,6.81KΩ,±1%,brede PCS 16 R1-2 R59-60 R117-118 R176-177 R233-234
R260 R264 R337-338 R390-391
17020049 Mini-E/C 47uF/25V,±20%,-
40/+85℃,Φ5*7mm,P=2.0mm,black,剪脚为4mm
PCS 101 C5-6,C14,C18-20,C29-30,C32,C37-38,C46,C50-
52,C61-62,C64,C83-84,C92,C96-98,C107
17020049 Mini-E/C 47uF/25V,±20%,-
40/+85℃,Φ5*7mm,P=2.0mm,black,剪脚为4mm
PCS 65 C419-420,C422-424,C429,C437-438,C440-
442,C447,C455-
456,C458,C473,C478,C480,C483
17010179 E/C 47uF/63V,±20%,-
40/+105℃,Φ6*10mm,P=2.5mm,black,剪脚为4mm
PCS 16 C1-2,C33-34,C79-80,C125-126,C157-158,C175-
176,C229-230,C271-272
17020041 Mini-E/C 22uF/25V,±20%,-
40/+85℃,Φ5*7mm,P=2mm,black,剪脚为4mm
PCS 1 C597
17010046 E/C 2200uF/16V,-10/+30%,-
40/+85℃,Φ10*20mm,P=5mm,black,剪脚为4mm
PCS 8 C10,C42,C88,C134,C166,C196,C238,C280

17020017 Mini-E/C 2.2uF/50V,±10%,-
40/+85℃,Φ4*7mm,P=1.5mm,black,剪脚为4mm
PCS 2 C612-613
17020024 Mini-E/C 4.7uF/50V,±20%,-
40/+85℃,Φ4*7mm,P=2.0mm,black,剪脚为4mm
PCS 2 C572-573
17020010 Mini-E/C 0.47uF/50V,±20%,-
40/+85℃,Φ4*7mm,P=1.5mm,black,剪脚为4mm
PCS 2 C614-615
17020071 Mini-E/C 1uF/50V,±20%,-
40/+105℃,Φ4*5mm,P=2.0mm,black,剪脚为4mm
PCS 1 C579
17020029 Mini-E/C 10uF/25V,±20%,-
40/+85℃,Φ4*7mm,P=1.5mm,black,剪脚为4mm
PCS 7 C569,C611,C596,C610,C634,C546-547
50030064 Metal polyester cap 223,VDC100,±5%,立式盒装型,brede,yellow,7.2(W)*6.5(H)*
2.5
(
T
)
PCS 32 C27-28,C59-60,C105-106,C151-152,C183-
184,C211-212,C253-254,C295-296,C310-311
50030102 Metal polyester cap 472,VDC100,±5%,立式盒装型,brede,yellow,7.2(W)*6.5(H)*
2.5(T)
PCS 40 C24-25,C56-57,C102-103,C148-149,C177,C179
-
181,C205,C207-209,C247,C249-251,C289
50030011 Metal polyester cap 104,VDC63,±5%,立式盒装型,brede,yellow,7.2(W)*6.5(H)*2
.5
(
T
)
PCS 24 C15-17,C47-49,C93-95,C139-141,C171-
173,C201-203,C243-245,C285-287
50030193 Metal polyester cap 203,VDC63,±5%,立式沾胶型,brede,brown PCS 8 C21-22,C53-54,C99-100,C145-146
25010017 Crystal resonance AN-O117,12.0000MHZ,HC-49S,30PF PCS 1 M1
20580002 Gasket NYLON66(UL),94V-2,QW2-2,5mm, PCS 1 M1
24100002 Magnetic bead PFR011-08403509,3.5*9*0.8J5C,1.8uH±25%,brede PCS 1 LB1
16050202 Shield cable AN-
W5199,8P,UL2547,24#,UL1007,22#,250mm,一端XH2.5一
端SCN2.5
PCS 1 J23B
16040635 Plug attached cable AN-
W4207,1P,18#,UL1015,100mm,一端T110端子+胶套一端
剥5mm
PCS 1 TP1
16040761 Plug attached cable AN-W4326,7P,UL1007,20#,130mm,一端XH-7一端SCN-7P PCS 1 TE1
16040714 Plug attached cable AN-W4282,2P,UL1007,20#,120mm,红黑并线,XH/SCN-2Y PCS 1 CN1
16040762 Plug attached cable AN-
W4327,1P,18#,UL1015,200mm,一端T110端子+胶套一端
剥线5mm
PCS 1 TP2
15010404 VR pot AN-
V1107,R1131GOCV1R104DS0066,D字柄,180度,L=28.5m
m,D=30,
PCS 4 VR8,VR12,VR21,VR30
15010395 VR pot AN-
V21Y,R09A1NOAV1B503DS0178,180度,L=28.5mmD=30
度,
PCS 24 VR2-4,VR11,VR13-14,VR20,VR22-
23,VR29,VR31-32,VR38,VR40-41,VR46-
48,VR54-56