M-Audio Axiom AIR 25 User manual

Confidential M-Audio Service Manual
M-Audio
Axiom AIR 25
[MK23]
Service Manual
v1.0
2014.04.21
The information in this document contains privileged and confidential information. It is intended
only for the use of those authorized by M-Audio. 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 M-Audio and
destroy all copies of this document. You may contact M-Audio at [e-mail].
© Copyright M-Audio
ATTENTION!
This document contains sensitive proprietary
information.
All recipients must have a current non-disclosure
agreement on file with M-Audio.
Do not make illegal copies of this document.

Confidential M-Audio Service Manual
Preface
This document is intended to assist the service technician in the operation, maintenance and
repair of the M-Audio 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 M-Audio may charge as consideration for M-Audio selling
or otherwise transferring this service manual ("Manual") to you, if you are not a service and repair
facility ("Service Center") authorized by M-Audio in writing to be an authorized Service Center,
M-Audio sells or transfers the Manual to you on the following terms and conditions:
Only Service Centers authorized by M-Audio in writing are authorized to perform service and
repairs covered by an M-Audio 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 M-Audio product or part thereof, any and
all warranties of M-Audio as to that product and any service contract with M-Audio 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 M-Audio 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 M-Audio 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, M-Audio does not give you the right to copy the
Manual, and you agree not to copy the Manual without the written authorization of M-Audio. M-
Audio has no obligation to provide to you any correction of, or supplement to, the Manual, or
any new or superseding version thereof.
M-Audio 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 M-Audio 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 M-Audio or the
use thereof on behalf of M-Audio 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 M-
Audio.
All Trademarks are property of their respective companies.

Confidential M-Audio 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 ION
AUDIO SERVICE CENTER WILL VOID THE ION AUDIO WARRANTY.
PROVISION OF THIS MANUAL DOES NOT AUTHORIZE THE RECIPIENT TO
COMPETE WITH ANY ION AUDIO 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 ION
AUDIO SERVICE CENTER SHALL BE SOLELY THE RESPONSIBILITY OF
THAT ENTITY, AND ION AUDIO 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 M-Audio 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.

BOM (Bill of Materials)
Item Part Number Qty Refdes Description Vendor Part Number
1 7610-00058-01 5 C2-C5,C30 CAP,1000PF,CER,50V,10%,X7R,L
F,SMT,0603
06035C102KAT
C0603C102K5RAC
06035C102KAT2A
2 7610-00353-01 2 C23-C24 CAP,18PF,CER,50V,5%,NPO,LF,S
MT,0603
CC0603JRNPO9BN180
06035A180JAT
C0603C180J5GAC
3 7610-00392-01 17 C9-C22,
C25,C27-C28
CAP,0.1UF,CER,50V,10%,X7R,LF,
SMT,0603
CC0603KRX7R9BB104
06035C104KAT
C0603C104K5RAC
4 7610-30099-01 1 C1 CAP CERM 22UF 6.3V 20% X5R
1206
12066D226MAT2A
C1206C226M9PAC
5 7610-30206-00 3 C6-C7,C29 CAP,1UF,X7R,16V,10%,0603 0603YC105KAT2A
CL10B105KO8NNNC
C1608X7R1C105KT
6 7610-30218-00 2 C8,C26 CAP,10UF,20%,25V,X5R,1206,ML
CC
NMC1206X5R106M25TRPF
C1206C106M3PACTU
7 7621-30075-01 3 D1-D3 DIO,BAT54S,SMT
SCHOTTKY,SOT23
BAT54S
8 7621-30076-01 2 D5-D6 DIO,MBRS120T3,PWR
RECT,SCHOTKY,SMB
MBRS120T3G
9 7621-30103-00 1 D4 DIO,2CH,ESD,USB TPD2E001DRLR
11 7650-00437-01 5 R22-R26 RES,100,SMT,TKF,1/10W,1%,0805 RK73H2ATTD1000F
12 7650-01480-01 3 R27-R28,R48 RES,0,SMT,TKF,1/16W,0%,0603 RK73Z1JTTD
13 7650-01484-01 14 R4-R9,R11-
R13,R51-
R54
,
R61
RES,33,SMT,TKF,1/16W,5%,0603 RK73B1JTTD330J
14 7650-01518-01 2 R39,R43 RES,1.00K,SMT,TKF,1/16W,1%,06
03
RK73H1JTTD1001F
15 7650-01569-01 1 R3 RES,220,SMT,TKF,1/16W,5%,0603 RK73B1JTTD221J
16 7650-01711-01 6 R15-R20 RES,27.4,SMT,TKF,1/16W,1%,060
3
RK73H1JTTD27R4F
17 7650-01942-01 1 R36 RES,9.09K,SMT,TKF,1/16W,1%,06
03
RK73H1JTTD9091F
18 7650-01946-01 2 R1-R2 RES,10.0K,SMT,TKF,1/16W,1%,06
03
RK73H1JTTD1002F
19 7650-01992-01 1 R21 RES,31.6K,SMT,TKF,1/16W,1%,06
03
RK73H1JTTD3162F
20 7650-30470-00 1 R40 RES,47.0K,SMT,TKF,1/16W,1%,06
03
RC0603FR-0747KL

21 7650-30473-00 2 R37-R38 RES,10K,SMT,TKF,1/10W,1%,060
3
RC0603FR-0710KL
23 7660-30090-01 1 U6 LED,LF 6N138S 6N138S
24 7680-30030-00 1 T1 IND,EMI,COMMON_MODE,90RAT
100MHZ,SMT,0805
CMM21T-900M-N
DLW21SN900SQ2L
25 7680-30048-00 1 L1 IND,2.2UH,SHIELDED,60MR,1.4A VLF3012ST-2R2M1R4
27 7690-00189-01 1 J8 CON,HDR,2P,2X1,VERT,FRICTIO
N-LOCK,.1C
22-23-2021
28 7690-00296-01 1 J9 CONN,3P,POWER,JACK,RA,TH,P
WRJACK1
RAPC712X
29 7690-00624-01 3 J10,J16-J17 CON,HDR,2P,1X2,BRKWY,VT,0.1,
HDR1X2B
TSW-102-08-T-S
30 7690-30122-01 1 J5 CONN,LF-USB-RA-B 292304-2
31 7690-30265-00 2 J6-J7 CON,DIN,5-PIN MIDI,RIGHT-
A
NGLE
2DJ-00600003
32 7690-30292-00 1 J3 CON,HDR,M,1X14,2MM,CI0114P1
VK0,VERT,SHRD
CI0114P1VK0
2417SJ-14
34 7690-30302-00 2 J12-J13 CON,STEREO,6.3MM,4P,LJB0660 LJB0660-4R
35 7690-30304-00 1 J2 CON,HDR,1X7,2MM,TH B7B-PH-K-S(LF)(SN)
36 7690-30305-00 1 J1 CON,HDR,1X4,2MM,TH B4B-PH-K-S(LF)(SN)
37 7690-30306-00 1 J11 CON,HDR,1X10,2MM,TH B10B-PH-K-S(LF)(SN)
39 7710-30192-01 1 U5 IC,74HC595-TSSOP MM74HC595MTCX
74HC595PW,118
74HC595DTR2G
M74HC595TTR
SN74HC595PWRE4
40 7710-30223-00 1 U3 IC,74LVC1G125,GATE,BUF,BUS,3
S,SOT23-5
SN74LVC1G125DBV_
43 7712-30228-00 1 U4 IC,TPS62160,ADJ,BUCK,SW,1A,C
ONVERTER
TPS62160DSG
46 7650-00629-01 3 R46-R47,R59 RES,10.0K,SMT,TKF,1/10W,1%,08
05
RK73H2ATTD1002F
47 7650-02202-01 6 R41-R42,R55-
R58
RES,470K,SMT,TKF,1/16W,1%,06
03
RK73H1JTTD4703F
48 7660-30116-01 1 DS1 LED,LF,0603,RED,700MCD,60DE
G
APTD1608SURCK
49 7680-30031-00 2 T2-T3 IND,EMI,C-
M,1K4AT100MHZ,1.5A,SMT,2020
DLW5BTN142SQ2L
50 7690-00195-01 1 J14 CONN,HDR,6P,6X1,VT,UNSH,.1C,
H6X1VU
A
5-146285-6
51 7712-30203-00 1 U9 IC,8:1 ANALOG MUX, CD4051 CD4051BPWR
CD4051BPW
52 7780-30111-00 8 E1-E8 FLTR,T-TYPE,ACF321825-
471,470PF,0.3A,SMD
ACF321825-471-T

53 7870-30418-00 1 PCB,AXIOM MKIII,MAIN 7870-30418-00
7870-30418-00
54 7871-30418-00 1 PCB SCHEM,AXIOM MKIII,MAIN
56 7631-30023-00 1 Y1 XTAL,8.000MHZ,HC-49/UP,50PPM E1SAA18-8.000M TR
E1SAA18-8.000M
57 7690-30232-01 1 J15 CON,HDR,SHRD,2X10,20P,PTH 3675P20VUA0
RT-FSH-DS-20GG2D1Z
58 7650-01587-01 2 R49-R50 RES,2.2K,SMT,TKF,1/16W,5%,060
3
RK73B1JTTD222J
59 7681-00054-01 1 E9 FER,FERRITE,SMT,600R@100MH
Z,0603
BLM18AG601SN1D
60 7610-00140-01 2 R44-R45 CAP,0.1UF,CER,16V,10%,X7R,LF,
SMT,0805
0805YC104KAT
C0805C104K4RAC
61 7650-00598-01 1 R60 RES,4.75K,SMT,TKF,1/10W,1%,08
05
RK73H2ATTD4751F
64 7714-30083-00 1 U2 IC,ARM,CORTEX-M3,LM3S5R36 LM3S5R36-IQR80-C5
LM3S5R36-IQR80-C5T

Main
1 5
01-06-2012_09:29 7871-30418-01
C EPSTEIN C:\MENTOR_PROJECTS\
A
Main PCBA
AXIOM mkIII
TABLE OF CONTENTS
DA B C
A B C D
1
2
3
4
1
2
3
Designer:
Sch No:
Size
B
Rev
4
This schematic is company confidential, and shall not be reproduced in whole or in part without express written permission from Avid Technology, Inc.
Sheet: of
Sheet Last Edited:Sch Name:
Project Path:
Avid Technology, Inc.
75 Network Drive
Burlington, MA. 01803
tel: [phone]
TABLE OF CONTENTS1
2
3
4
5
ARM
VSM / JACKS
MIDI / HEADERS
POWER
UART0
UART1
UART2
I2C0
SSI0
SSI1
DEBUG / EXPANSION
MIDI
KEYBED SCANNER
FUTURE USE
LCD / EXT FLASH
VSM
ARM
VSM VSM IN VSM OUT
KEYBED LCD
VSM OUTVSM IN VSM IN VSM OUTMAIN UI 1 or UI 1B UI 2 UI 3 or UI 3B
BUTTONS
ARM INTERFACES
AXIOM mkIII SYSTEM

Main
2 5
01-06-2012_09:29 7871-30418-01
C EPSTEIN C:\MENTOR_PROJECTS\
A
Main PCBA
AXIOM mkIII
ARM
DA B C
A B C D
1
2
3
4
1
2
3
Designer:
Sch No:
Size
B
Rev
4
This schematic is company confidential, and shall not be reproduced in whole or in part without express written permission from Avid Technology, Inc.
Sheet: of
Sheet Last Edited:Sch Name:
Project Path:
Avid Technology, Inc.
75 Network Drive
Burlington, MA. 01803
tel: [phone]
U2
48
46
45
37
3
35
34
40
33
32
31
30
7
16
54
38
23
9
59
43
28
12
4
60
53
44
39
36
29
24
13
10
8
1
2
6
5
64
63
62
61
15
14
11
49
50
51
52
55
56
57
58
27
47
42
41
26
25
22
21
20
19
18
17 PA0_U0RX
PA1_U0TX
PA2_SSI0CLK
PA3_SSI0FSS
PA4_SSI0RX
PA5_SSI0TX
PA6
PA7
PB0
PB1
PB2_I2C0SCL
PB3_I2C0SDA
PB4
PB5
PB6
PB7
PC0_TCK_SWCLK
PC1_TMS_SWDIO
PC2_TDI
PC3_TDO_SWO
PC4
PC5
PC6
PD0
PD1
PD2
PD3
PE1
PE0
PE2
PE3
PE4
GND_1
GND_2
GND_3
GND_4
GND_5
GND_6
GND_7
GND_8
GND_9
GNDA
VDD_1
VDD_2
VDD_3
VDD_4
VDDC_1
VDDC_2
VDDC_3
VDDC_4
PC7
LDO
OSC0
OSC1
WAKE
HIB
RST
XOSC0
XOSC1
VDDA
VBAT
USB0DM
USB0DP
USB0RBIAS
R1 10.0K
C9 0.1UF
50V
V3P3
50V
0.1UFC10
C11 0.1UF
50V 50V
0.1UFC12
C13 0.1UF
50V
C6 1UF
16V
V3P3
C7 1UF
16V
50V
0.1UFC14
C15 0.1UF
50V 50V
0.1UFC16
50V
0.1UFC17
V3P3
V3P3
J5
4
3
2
1
6 5
GND
D+
D-
+VBUS
SH
VDB
VBUS
50V
0.1UFC18
T1
4
2 3 1
R27 0
J15
987 65 43
20
2
19 1817 1615 1413 1211 10
1
C23 18PF
50V 50V
18PFC24
R36 9.09K
R15 27.4
R16 27.4
R1727.4
NC
D4
3 5
1
42 NC1 GND
VCC
IO2IO1
R1827.4
R1927.4
R2027.4
NC
V3P3
R28 0
VBUS
50V
0.1UFC19
T2
CHOKE_DLW5B 1K4AT100MHZ4
2 3 1
TP23
R6 33
33R4
33R5
NC
NC
NC
U8
6
5
3
1
7 4
8
2
SO
VCC
GNDHOLD
CS
WP
SI
SCK
V3P3
50V
0.1UFC25
DS1
A C R43 1.0K
V3P3
TP1
NC
NC
NC
R48 0
TP24
Y1 8.000MHZ
33R51
33R52
R53 33
33R54
R49 2.2K
R50 2.2K
V3P3
50V
0.1UFC53
1.0KR64
U10 24 0R6333R62
RSTn
RSTn
RSTn
LDO_OUT
LDO_OUT
LDO_OUT
USBT_P
UART0_RX
UART0_TX
TCK
TCK
TMS
TMS
TDI
TDI
TDO
TDO
I2C0_SCL
I2C0_SDA
SSI0_CLK
SSI0_CLK
SSI0_CS0_N
SSI0_MISO
SSI0_MISO
SSI0_MOSI
SSI0_MOSI
AN7
AN6
AN5
AN4
UART2_RX
UART2_TXUART1_TX
USBT_N
USBR_N
USBR_N
USBR_P
USBR_P
UART1_RX
SUSTAIN
KEYBED_PROG
PERIPH_RST_N
VSM_RST
VSM_CLK
VSM_SDOUT
VSM_LOAD_B
VSM_LOAD_A
VSM_CLK_R
SSI0_CLK_R
I2C0_SCL_R
I2C0_SCL_R
SSI0_CS1_N
SSI0_CS1_N
VSM_SDIN
AN_MUX
USB_D_N
USB_D_P
I2C0_SDA_R
I2C0_SDA_R
VSM_SDOUT_R
VSM_LOAD_A_R
VSM_LOAD_B_R
JTAG

Main
3 5
01-06-2012_09:29 7871-30418-01
C EPSTEIN C:\MENTOR_PROJECTS\
A
Main PCBA
AXIOM mkIII
MIDI / HEADERS
DA B C
A B C D
1
2
3
4
1
2
3
Designer:
Sch No:
Size
B
Rev
4
This schematic is company confidential, and shall not be reproduced in whole or in part without express written permission from Avid Technology, Inc.
Sheet: of
Sheet Last Edited:Sch Name:
Project Path:
Avid Technology, Inc.
75 Network Drive
Burlington, MA. 01803
tel: [phone]
U6
1
5
6
7
8
4
3
2A
C
NC2
VCC
VB
VO
GND
NC1
SHIELD
VF
+
-
VDB
J6
76
5
4
1
2
3
J7
7 6
5
4
1
2
3
V3P3
R22100 R23100 R24100
V3P3
R7 33
R8 33
R933
E5
2
31
E2
2
31
E3
2
31
E4
2
31
50V
0.1UFC20
C21 0.1UF
50V
R37 10K
R3 220
U3
SN74LVC1G125DBV
5
4
1
2
VCC
V3P3
C220.1UF
50V
V3P3
J1
4
3
2
1
J2
2
3
4
5
6
7
1
V3P3
J11
6
3
2
1
4
5
7
8
9
10
V3P3
D1
BAT54S
2
3
1
C2 1000PF
50V
50V
1000PFC3
C4 1000PF
50V
TP2 TP3 TP4 TP5
TP6 TP7
TP8 TP9
TP10 TP11 TP12 TP13 TP14
TP15 TP16
NC
NC
NC
NC
NC
NC
E1
2
31
R61 33E17 E16
E10
E11
C30 100PF
50V
50V
100PFC31
C32 100PF
50V
50V
100PFC33
50V
100PFC34
C35 100PF
50V
50V
100PFC36
E12 E13 E14
E15
C37 100PF
50V
50V
100PFC38
C39 100PF
50V
50V
100PFC40 UART0_RX
UART0_TX
I2C0_SCL
I2C0_SDA
SSI0_CLK
SSI0_CS0_N
SSI0_MISO
SSI0_MOSI
UART2_RX
UART2_TX
UART1_TXUART1_RX
KEYBED_PROG
PERIPH_RST_N
PERIPH_RST_N
MIDI IN MIDI OUT
LCD CONNECTOR
KEYBED CONNECTOR
UART EXP

Main
4 5
01-06-2012_09:29 7871-30418-01
C EPSTEIN C:\MENTOR_PROJECTS\
A
Main PCBA
AXIOM mkIII
VSM / JACKS
DA B C
A B C D
1
2
3
4
1
2
3
Designer:
Sch No:
Size
B
Rev
4
This schematic is company confidential, and shall not be reproduced in whole or in part without express written permission from Avid Technology, Inc.
Sheet: of
Sheet Last Edited:Sch Name:
Project Path:
Avid Technology, Inc.
75 Network Drive
Burlington, MA. 01803
tel: [phone]
J3
14
13
12
11
10
9
8
7
6
5
4
3
2
1
U9
7
3
8
16
11
10
9
4
2
5
1
12
15
14
13
6
INH
CH_0
CH_1
CH_2
CH_3
CH_4
CH_5
CH_6
CH_7
C
B
A
VDD
GND
YCMN
VEE
ANALOG MUX
V3P3_A
V3P3_A
E6
2
31
J10
2
1
74HC595
U5
14
12
11
9
16
6
5
7
4
3
2
1
15
10
13 8
GNDG
SCLR
QA
QB
QC
QD
QE
QH
QF
QG
VCC
SD_OUT
SCK
RCK
SER
C51 50V
0.1UF 0.1UF
50V
C52
V3P3
10.0KR46
J12
LJB0660-4R
3
2
4
1
T
S
R
TS
LJB0660-4R
J13 3
2
4
1
T
S
R
TS
D2
BAT54S 2
3
1
V3P3
33R11
10KR38
C5 1000PF
50V
V3P3_A
100 R25
R26100
D3
BAT54S 2
3
1
V3P3_A
R47 10.0K
R39 1.0K
R40 47.0K
V3P3
0.1UF
50V
C27
50V
0.1UFC28
R41 470K
R42 470K
R12 33
33R13
J16
2
1
R59 10.0K
E7
2
31
E8
2
31
TP25 TP26 TP27
NC
NC
NC
NC
TP17 TP18 TP19 TP20 TP21 TP22
NC
NC
NC
TP28
V3P3_A
J14
3
2
1
4
5
6
J17
2
1
V3P3_A
R55 470K
R56 470K
470KR57 470KR58
C41 100PF
50V
E18
E19
E20
E21
50V
100PFC42
50V
100PFC43
C44 100PF
50V
E22 E23
E24
E25
E26 E27
C45 100PF
50V
C46 100PF
50V
C47 100PF
50V
50V
100PFC48 50V
100PFC49
50V
100PFC50
R60 4.75K
AN7
AN7
AN6
AN6
AN5
AN5
AN4
AN4
SUSTAIN
VSM_RST
VSM_RST
VSM_CLK
VSM_CLK
VSM_SDOUT
VSM_LOAD_B
VSM_LOAD_B
VSM_LOAD_A
MODULATION
PITCH
VSM_SDIN
AN_MUX
EXPRESSION
AFTER TOUCH
SUSTAIN
VSM
PITCH AND MOD WHEELS

V3P3
1A__20V
D5
12
Main
5 5
01-06-2012_15:00 7871-30418-01
C EPSTEIN C:\MENTOR_PROJECTS\
A
Main PCBA
AXIOM mkIII
POWER
DA B C
A B C D
1
2
3
4
1
2
3
Designer:
Sch No:
Size
B
Rev
4
This schematic is company confidential, and shall not be reproduced in whole or in part without express written permission from Avid Technology, Inc.
Sheet: of
Sheet Last Edited:Sch Name:
Project Path:
Avid Technology, Inc.
75 Network Drive
Burlington, MA. 01803
tel: [phone]
J8
1
2
25V
10UF C8
6.3V
22UF C1
31.6KR21
VBUS
D6
1A__20V
12
10.0KR2
J9
PWR_JACK
2
1
3SHNT
PIN
SLV
U4
G1 51
6
84
2
3
7
SW
EN
VIN
SENSE PG
VOS
PGND FB
GND_PAD
L1 2.2UH
T3
CHOKE_DLW5B 1K4AT100MHZ4
2 3 1
25V
10UF C26
NC
NC
V3P3_A
E9
16V
1UFC29
165MTGP_400DIA
MH1
MTG_HOLEX1
165MTGP_400DIA
MH2
MTG_HOLEX1
To Power Switch
OPTIONAL WALL 9-12VDC IN

M-Audio
RD120607
2012-06-21
Axiom MKIII25-DRUMFPC-V01
01
LIANGZIRONG
B
11
REV:SIZE:CODE:
DRAWN: DATED:
DATED:CHECKED:
QUALITY CONTROL: DATED:
DATED:RELEASED:
COMPANY:
TITLE:
DRAWING NO:
SHEET: OFSCALE:
REVISION RECORD
APPROVED:ECO NO:
A
B
D
DATE:
123456
D
C
A
B
C
LTR
TO RFB BOARD
17PIN-1.25mmFPC
DPADFPC BOARD
1p
17p
AN14AN15AN8AN7AN6AN5AN4AN3AN2AN1V3P3_AAN9AN10AN11AN12AN13 AN16
12
SW1
12
SW2
12
SW3
12
SW4
12
SW5
12
SW6
12
SW7
12
SW8
12
SW9
12
SW10
12
SW11
12
SW12
12
SW13
12
SW14
12
SW15
12
SW16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
CN2
CON17-2.0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
CN3
CON17-2.0
ANPAD15
ANPAD16
ANPAD8
ANPAD7
ANPAD6
ANPAD5
ANPAD4
ANPAD3
ANPAD2
ANPAD1
ANPAD9
ANPAD10
ANPAD11
ANPAD12
ANPAD13
ANPAD1
ANPAD2 ANPAD3 ANPAD4
ANPAD13 ANPAD14
ANPAD15 ANPAD16
ANPAD8
ANPAD7
ANPAD5
ANPAD6
ANPAD9 ANPAD10 ANPAD11
ANPAD12
ANPAD14
ANPAD1
ANPAD2
ANPAD3
ANPAD4
ANPAD5
ANPAD6
ANPAD7
ANPAD8
ANPAD9
ANPAD10
ANPAD11
ANPAD12
ANPAD13
ANPAD14
ANPAD15
ANPAD16
V3P3_A

M-Audio
RD120609
2012-06-21 Axiom MKIII25- DRUM -V01
01
LIANGZIRONG
B
11
REV:SIZE:CODE:
DRAWN: DATED:
DATED:CHECKED:
QUALITY CONTROL: DATED:
DATED:RELEASED:
COMPANY:
TITLE:
DRAWING NO:
SHEET: OFSCALE:
REVISION RECORD
APPROVED:ECO NO:
A
B
D
DATE:
123456
D
C
A
B
C
LTR
TO RFB BOARD
RED GRN
3
21
4
LED1
3
21
4
LED2
3
21
4
LED3
3
21
4
LED4
3
21
4
LED5
3
21
4
LED6
3
21
4
LED7
3
21
4
LED8
3
21
4
LED9
3
21
4
LED10
3
21
4
LED11
3
21
4
LED12
3
21
4
LED13
3
21
4
LED14
3
21
4
LED15
3
21
4
LED16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
16
15
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
CN14
CON33-2.0
LED12R LED12G
LED13R
LED13G
LED14R
LED14G
LED15R
LED15G
LED16R
LED16G
LED11GLED11R
LED10G
LED10R
LED9GLED9R
LED8GLED8RLED7GLED7R
LED6GLED6RLED5GLED5RLED4GLED4RLED3GLED3RLED2GLED2RLED1GLED1R
LED1R
LED1G
LED2R
LED2G
LED3R
LED3G
LED4R
LED4G
LED5R
LED5G
LED6R
LED6G
LED7R
LED7G
LED8R
LED8G
LED9R
LED9G
LED10R
LED10G
LED11R
LED11G
LED12R
LED12G
LED13R
LED13G
LED14R
LED14G
LED15R
LED15G
LED16R
LED16G
V3P3

M-Audio
RD120604
2012-06-16
Axiom MKIII- DRUMKEY-V01
01
LIANGZIRONG
B
11
REV:SIZE:CODE:
DRAWN: DATED:
DATED:CHECKED:
QUALITY CONTROL: DATED:
DATED:RELEASED:
COMPANY:
TITLE:
DRAWING NO:
SHEET: OFSCALE:
REVISION RECORD
APPROVED:ECO NO:
A
B
D
DATE:
123456
D
C
A
B
C
LTR
TO RFB BOARD
R1147K
R9
47K
R10
47K
1
2
3
4
5
6
7
8
9
10
11
CN16
CON11-2.0
12
SW1
12
SW2
12
SW3
3
21
4
LED16
3
21
4
LED15
3
21
4
LED14
R29
1K
R73
330
12
R30
1K
12
R74
330
R31
1K
R75
330
3V3

M-Audio
RD120610
2012-06-21 Axiom MKIII25 - FDR -V01
01
Liangzirong
C
11
REV:SIZE:CODE:
DRAWN: DATED:
DATED:CHECKED:
QUALITY CONTROL: DATED:
DATED:RELEASED:
COMPANY:
TITLE:
DRAWING NO:
SHEET: OFSCALE:
REVISION RECORD
APPROVED:ECO NO:LTR DATE:
123456
D
C
B
A
C
D
B
A
TO RFB BOARD
13
25
4
FDR1
3
21
4LED1
3
21
4
LED2 R4 330
R3 1k
R2 330
R1 1k
C1
0.1uf
1
2
3
4
5
6
7
8
9
10
11
CN15
CON11-2.0
12
SW2
12
SW1
R5
47k
R6
47k
C2
471
C3
471
C4
471
C5
471
C6
471
C7
471
C8
471
C9
0.1uf
V3P3_A
V3P3
V3P3_A
V3P3

01
Axiom MKIII LCD(st7070) DRIVER PCB
A-VID
LIANGZIRONG
2012-03-30
<Checked By>
<QC By>
<Released By>
<Checked Date>
<QC Date>
<Release Date>
<Code> C
<Scale> 1 1
REV: SIZE: CODE:
DRAWN: DATED:
DATED: CHECKED:
QUALITY CONTROL: DATED:
DATED: RELEASED:
COMPANY:
TITLE:
DRAWING NO:
SHEET: OF SCALE:
REVISION RECORD
APPROVED: ECO NO: LTR DATE:
1 2 3 4 5 6
D
C
B
A
C
D
B
A
TO MFB BOARD
TO MAIN PCB
Color :
white
Backlight moudle
3
/RESET
11
PSB
1
RS
12
RW
13
E
10
DB0
9
DB1
8
DB2
7
DB3
6
DB4
5
DB5
4
DB6
2
DB7
67
OSC1
66
OSC2
65
CL1
64
CL2
63
M
62
D
73
V0
72
V1
71
V2
70
V3
115
COM1
116
COM2
117
COM3
118
COM4
119
COM5
120
COM6
121
COM7
122
COM8
14
COM9
15
COM10
16
COM11
17
COM12
18
COM13
19
COM14
20
COM15
21
COM16
114
SEG1
113
SEG2
112
SEG3
111
SEG4
110
SEG5
109
SEG6
108
SEG7
107
SEG8
106
SEG9
105
SEG10
104
SEG11
103
SEG12
102
SEG13
101
SEG14
100
SEG15
99
SEG16
98
SEG17
97
SEG18
96
SEG19
95
SEG20
94
SEG21
93
SEG22
92
SEG23
91
SEG24
90
SEG25
89
SEG26
88
SEG27
87
SEG28
86
SEG29
85
SEG30
84
SEG31
83
SEG32
82
SEG33
81
SEG34
80
SEG35
79
SEG36
78
SEG37
77
SEG38
76
SEG39
75
SEG40
22
SEG41
23
SEG42
24
SEG43
25
SEG44
26
SEG45
27
SEG46
28
SEG47
29
SEG48
30
SEG49
31
SEG50
32
SEG51
33
SEG52
34
SEG53
35
SEG54
36
SEG55
37
SEG56
38
SEG57
39
SEG58
40
SEG59
41
SEG60
42
SEG61
43
SEG62
44
SEG63
45
SEG64
46
SEG65
47
SEG66
48
SEG67
49
SEG68
50
SEG69
51
SEG70
52
SEG71
53
SEG72
54
SEG73
55
SEG74
56
SEG75
57
SEG76
58
SEG77
59
SEG78
60
SEG79
61
SEG80
69
V4
74
VCC
68
GND
123
SUBSTRATE
U1
ST7070
1
2
3
4
5
6
7
8
9
CN2
R1
0R
R2 3K
R3
5K1
R4 3K
R5
5K1
R6
5K1
+
C2
10uF/16V
C1
100nF/63V
R8
330R
R7
75K
C3
180pF/50V
9
S1
10
S2
11
S3
12
S4
13
S5
14
S6
15
S7
16
S8
17
S9
18
S10
19
S11
20
S12
21
S13
22
S14
23
S15
32
S16
33
S17
34
S18
35
S19
36
S20
37
S21
38
S22
39
S23
40
S24
41
S25
42
S26
43
S27
44
S28
45
S29
46
S30
47
S31
48
S32
49
S33
50
S34
51
S35
52
S36
53
S37
54
S38
55
S39
56
S40
57
S41
58
S42
59
S43
60
S44
61
S45
62
S46
63
S47
1
C1
2
C2
3
C3
4
C4
5
C5
6
C6
7
C7
8
C8
24
C9
25
C10
26
C11
27
C12
28
C13
29
C14
30
C15
31
C16
U2
FS-S82690
1
2
3
4
5
6
7
8
9
10
11
12
13
14
CN10
1 2
SW17
1 2
SW18
1 2
SW11
1 2
SW12
3 2
1 4
LED4
LED2
LED3
LED1
R19
1K
R27
330
R20
1K
R28
330
R21
1K
R29
330
R22
1K
R30
330
2
1
LED5
V3P3
DB7
DB6
DB5
DB4
E
RS
R/W
V0
V1
V2
V3
V4
V3P3
+3.3V
V3P3
COM1
COM2
COM3
COM4
COM5
COM6
COM7
COM8
RS
R/W
E
DB4
DB5
DB6
DB7
V0
V1
V2
V3
V4
V3P3
COM1
COM2
COM3
COM4
COM5
COM6
COM7
COM8
COM9
COM10
COM11
COM12
COM13
COM14
COM15
COM16
COM9
COM10
COM11
COM12
COM13
COM14
COM15
COM16
V3P3
V3P3

M-Audio
01
Axiom MKIII -LCD -V01
2012-06-16
B
liangzirong
11
REV:SIZE:CODE:
DRAWN: DATED:
DATED:CHECKED:
QUALITY CONTROL: DATED:
DATED:RELEASED:
COMPANY:
TITLE:
DRAWING NO:
SHEET: OFSCALE:
REVISION RECORD
APPROVED:ECO NO:
A
B
D
DATE:
123456
D
C
A
B
C
LTR
Backlight moudle
TO MFB BOARD
LED Color: orgen
TO MAIN BOARD
RD120602
13
S29
86 S42_C21
85 S43_C20
84 S44_C19
83 S45_C18
82 S46_C17
81 S47_C16
80 S48_C15
79 S49_C14
78 S50_C13
77 S51_C12
76 S52_C11
75 S53_C10
74 S54_C9
73 S55_C8
72 S56_C7
71 S57_C6
70 S58_C5
69 S59_C4
68 S60_C3
67 S61_C2
66 S62_C1
65 S63_C0
64 VSS
63 PSB
62 OSCI
61 OSCO
60 VDD
59 INTB_MSB
58 CSN
57 CKB
56 FLM
55 CLK
54 CD0
53 CD1
52 CD2
51 CD3
50 V1
49 V2
48 V3
47 V4
46 V5
45 CC1
1
S41_C22 2
S40_C23 3
S39_C24 4
S38_C25 5
S37_C26 6
S36_C27 7
S35_C28 8
S34_C29 9
S33_C30 10
S32_C31 11
S31 12
S30
14
S28 15
S27 16
S26 17
S25 18
S24 19
S23 20
S22 21
S21 22
S20 23
S19 24
S18 25
S17 26
S16 27
S15 28
S14 29
S13 30
S12 31
S11 32
S10 33
S9 34
S8 35
S7 36
S6 37
S5 38
S4 39
S3 40
S2 41
S1_CC3 42
S0_CC2 43
TEST
44 CC0 87
PAD
U1
CS708
C6
0.1uf
1
2
3
4
5
CN4
C2
0.1uf
C3
0.1uf
C4
0.1uf
C1
0.1uf
C5
0.1uf
21
LED5
R1
100
C7
0.1uf
9S1
10 S2
11 S3
12 S4
13 S5
14 S6
15 S7
16 S8
17 S9
18 S10
19 S11
20 S12
21 S13
22 S14
23 S15
32 S16
33 S17
34 S18
35 S19
36 S20
37 S21
38 S22
39 S23
40 S24
41 S25
42 S26
43 S27
44 S28
45 S29
46 S30
47 S31
48 S32
49 S33
50 S34
51 S35
52 S36
53 S37
54 S38
55 S39
56 S40
57 S41
58 S42
59 S43
60 S44
61 S45
62 S46
63 S47
1C1
2C2
3C3
4C4
5C5
6C6
7C7
8C8
24 C9
25 C10
26 C11
27 C12
28 C13
29 C14
30 C15
31 C16
U3
FS-S82690
+
C8 10uF/10V
1
2
3
4
5
6
7
8
9
10
11
12
13
14
CN10
12
SW17
12
SW18
12
SW11
12
SW12
32
14
LED4
LED2
LED3
R19 1K
R27 330
R20 1K
R28 330
R21 1K
R29 330
V3P3
V3P3
S[0:46]
S0
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
S12
S13
S14
S15
S16
S17
S18
S19
S20
S21
S22
S23
S24
S25
S26
S27
S28
S29
S30
S31
S32
S33
S34
S35
S36
S37
S38
S39
S40
S41
S[0:46]
S42
S43
S44
S45
S46
C[0:15]
C0
C1
C2
C3
C4
C5
C6
C7
C8
C9
C10
C11
C12
C13
C14
C15
S[0:46]
S0
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
S12
S13
S14
S15
S16
S17
S18
S19
S20
S21
S22
S23
S24
S25
S26
S27
S28
S29
S30
S31
S32
S33
S34
S35
S36
S37
S38
S39
S40
S41
S42
S43
S44
S45
S46
C[0:15]
C15
C14
C13
C12
C11
C10
C9
C8
C7
C6
C5
C4
C3
C2
C1
C0
V3P3
V3P3
V3P3

M-Audio
RD120600 01
Axiom MKIII-LFB -V01
2012-06-16Liangzirong
C
12
REV:SIZE:CODE:
DRAWN: DATED:
DATED:CHECKED:
QUALITY CONTROL: DATED:
DATED:RELEASED:
COMPANY:
TITLE:
DRAWING NO:
SHEET: OFSCALE:
REVISION RECORD
APPROVED:ECO NO:LTR DATE:
123456
D
C
B
A
C
D
B
A
FROM MFB(VSM OUT) BOARD
VSM IN 1
2
3
4
5
6
7
8
9
10
11
12
13
14
CN8
CON14-2.0
1OE
2A1
4A2
6A3
8A4
18
Y1
16
Y2
14
Y3
12
Y4
U4-A
74HC244
19 OE
11 A1
13 A2
15 A3
17 A4
9
Y1
7
Y2
5
Y3
3
Y4
U4-B
74HC244
C23
0.1uf
C24
0.1uf
R44 33
R46 33
R48 33
R47 33
R45 33
R50 33
R49 33
R51 33
L1 0 ohm
L2 0 ohm
+
C30
47uf/6.3V
R61 33
R60 33
R62 33
C202
47PF
C210
47PF
C201
47PF
C200
47PF
C206
47PF
C207
47PF
C208
47PF
C209
47PF
C203
47PF
C204
47PF
C205
47PF
VSM_LOAD_B
VSM_LOAD_A
VSM_RST
VSM_CLK_A
VSM_CLK_B
VSM_CLK_C
VSM_CLK_D
VSM_CLK_E
VSM_CLK_F
VSM_CLK_G
V3P3
VSM_SDOUT
VSM_SDIN
V3P3 V3P3