Akai SynthStation 25 User manual

Confidential Akai Service Manual
AKAI
SynthStation 25
[AD03]
Service Manual
Rev. 1
2011.01.24
The information in this document contains privileged and confidential information. It is intended
only for the use of those authorized by Akai Professional. 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 Akai Professional and
destroy all copies of this document. You may contact Akai Professional at
[email protected].
Copyright Akai Professional
ATTENTION!
THIS DOCUMENT CONTAINS SENSITIVE
PROPRIETARY INFORMATION.
ALL RECIPIENTS MUST HAVE A CURRENT
NON-DISCLOSURE AGREEMENT ON FILE
WITH AKAI PROFESSIONAL.
DO NOT MAKE ILLEGAL
COPIES OF THIS DOCUMENT

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

Confidential Akai 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
AKAI SERVICE CENTER WILL VOID THE AKAI WARRANTY.
PROVISION OF THIS MANUAL DOES NOT AUTHORIZE THE RECIPIENT TO
COMPETE WITH ANY AKAI 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 AKAI
SERVICE CENTER SHALL BE SOLELY THE RESPONSIBILITY OF THAT
ENTITY, AND AKAI 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 Akai 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 Akai Service Manual
AD03 Main PCB
BOM and schematic

PADS File: C:\PADS Projects\BillOfMaterials.rep
Date: 5/28/2010
Time: 1:34:28 PM
P/N Description Qty Ref. Des. Approved Mfr. Mfr's P/N
0-09-0116 POT 50KA DUAL HORZ 15mm (7mm D) D-SHAFT WITH
BUSHING 1 P1 TAIWAN ALPHA ELECTRONIC CO RD902F-20E1-15F-A50K- 00D28(RoHS)
0-12-0101 RES 100 OHM 1/10W 5% 0603 12 R59 R67 R69 R72 R78-
79 R94 R96-98 R101-
102
0-12-0102 RES 1K OHM 1/10W 5% 0603 2 R70-71
0-12-0103 RES 10K OHM 1/10W 5% 0603 18 R29 R34-36 R41 R43
R52-54 R56 R65-66 R73
R85-86 R88 R91 R93
0-12-0104 RES 100K OHM 1/10W 5% 0603 11 R2 R4 R6 R8 R31-32
R39 R76 R87 R89 R92 PANASONIC INDUSTRIAL CO Walsin Technology Corporation
Digi-Key Corporation
ERJ-3GEYJ104V
WR06X101_J
P100KGCT-ND
0-12-0105 RES 1M OHM 1/10W 5% 0603 1 R28
0-12-0109 RES 1 OHM 1/10W 5% 0603 1 R63
0-12-0220 RES 22 OHM 1/10W 5% 0603 2 R57-58
0-12-0332 RES 3.3K OHM 1/10W 5% 0603 4 R3 R5 R10 R12
0-12-0363 RES 36K OHM 1/10W 5% 0603 1 R46
0-12-0473 RES 47K OHM 1/10W 5% 0603 3 R30 R37-38 PANASONIC INDUSTRIAL CO
Digi-Key Corporation ERJ-3GEYJ473V P47KGCT-ND
0-12-0620 RES 62 OHM 1/10W 5% 0603 4 R18-21
0-13-1000 RES 100 OHM 1/10W 1% 0603 SMD 1 R16
0-13-1002 RES 10.0K OHM 1/16W 1% 0603 14 R1 R7 R14-15 R22-23
R25-26 R40 R44 R47-50 Walsin Technology Corporation PANASONIC INDUSTRIAL CO
Digi-Key Corporation
WR06X103_F
ERJ-3EKF1002V
P10.0KHCT-ND
0-13-1003 RES 100K OHM 1/10W 1% 0603 1 R62 Digi-Key Corporation
Walsin Technology Corporation
PANASONIC INDUSTRIAL CO
P100KHCT-ND
WR06X104F
ERJ-3EKF1003V
0-13-1151 RES 1.15K OHM 1/10W 1% 0603 2 R13 R17
0-13-1501 RES 1.50K OHM 1/10W 1% 0603 1 R51
0-13-1582 RES 15.8K OHM 1/10W 1% 0603 4 R61 R68 R74 R82
0-13-2003 RES 200K OHM 1/10W 1% 0603 1 R64
0-13-2492 RES 24.9K OHM 1/10W 1% 0603 4 R24 R27 R33 R42
0-13-3321 RES 3.32K OHM 1/10W 1% 0603 4 R80-81 R83-84

PADS File: C:\PADS Projects\BillOfMaterials.rep
Date: 5/28/2010
Time: 1:34:28 PM
P/N Description Qty Ref. Des. Approved Mfr. Mfr's P/N
0-13-4752 RES 47.5K OHM 1/10W 1% 0603 2 R60 R75
0-17-0103 RES CHIP ARRAY 4 X 10K OHM 1/16W 5% ISOLATED
c-c=0.8mm 2 R90 R95 VENKEL CTS
SEI ELECTRONICS
SKYWELL TECHNOLOGY
PANASONIC INDUSTRIAL CO
CRN16-4-103JCT
742C083103J
RAC16-4D 10K 5%
RA03J103-4
EXBV8V103JV
1-08-1472 CAP 47uF ELEC 16V 2.5x6.3x5mm 3 C19 C23 C57 ELNA RC3-16V470M
1-51-1475 CAP 4.7uF X5R 1206 10% 10V 2 C22 C45 Walsin Technology Corporation
Walsin Technology Corporation
Pan Overseas Electronic Co., LTD.
Pan Overseas Electronic Co., LTD.
1206X475K100CT(RoHS)
1206B475K100CT(RoHS)
N1206X475KCT(RoHS)
N1206R475KCT(RoHS)
1-55-0102 CAP 1000pF NPO 0805 5% 100V 2 C2 C6
1-55-0151 CAP 150pF NPO 0805 5% 50V 2 C1 C3
1-60-2222 CAP 22uF ELEC 20% 16V SMD-B 4 C4 C7 C12-13 PANASONIC INDUSTRIAL CO
Digi-Key Corporation
KJ (H.K.) Electronics CO. LTD
PANASONIC INDUSTRIAL CO
Samxon/Man Yue Electronics
EEV-HA1C220WR
PCE3293CT-ND
16SS220MLC4×5.4EC
EEE-HA1C220WR (RoHS)
VSS226M1CC54TRS1
1-61-0101 CAP 100pF NPO 0603 5% 50V 1 C59 PANASONIC INDUSTRIAL CO
Walsin Technology Corporation
Digi-Key Corporation
ECJ-1VC1H101J
603B103K500C
PCC101ACVCT-ND ADDED PART
1-61-0180 CAP 18pF NPO 0603 5% 50V 2 C28 C35 Walsin Technology Corporation
TDK Corporation
Digi-Key Corporation
Digi-Key Corporation
0603N180J500L
C1608C0G1H180J
445-1272-1-ND
445-1272-2-ND
1-61-0331 CAP 330pF NPO 0603 5% 50V 3 C5 C8 C10

PADS File: C:\PADS Projects\BillOfMaterials.rep
Date: 5/28/2010
Time: 1:34:28 PM
P/N Description Qty Ref. Des. Approved Mfr. Mfr's P/N
1-62-0103 CAP 0.01uF X7R 0603 10% 50V 2 C33 C39 Walsin Technology Corporation
Walsin Technology Corporation
KEMET Electronics Corporation
Digi-Key Corporation
Pan Overseas Electronic Co., LTD.
Pan Overseas Electronic Co., LTD.
0603B103K101CT
0603B103K500CT
C0603C103K5RACTU
399-1091-1-ND
A0603R103KCT
U0603R103KCT
1-62-0104 CAP 0.1uF X7R 0603 10% 50V 26 C9 C11 C14 C16-17
C20-21 C24 C27 C32
C34 C36-38 C40-44 C46
-
48 C51-52 C54-55
Walsin Technology Corporation
KEMET Electronics Corporation
Digi-Key Corporation
0603B104K500C
C0603C104K5RACTU
399-5089-1-ND
1-62-0105 CAP 1uF X5R 0603 10% 10V 7 C15 C25-26 C29-31 C56 Pan Overseas Electronic Co., LTD.
Walsin Technology Corporation
Pan Overseas Electronic Co., LTD.
N0603X105KCT(RoHS)
0603B105K100CT(RoHS)
N0603R105KCT(RoHS)
1-62-0105 CAP 1uF X5R 0603 10% 10V 3 C50 C53 C49 Pan Overseas Electronic Co., LTD.
Walsin Technology Corporation
Pan Overseas Electronic Co., LTD.
N0603X105KCT(RoHS)
0603B105K100CT(RoHS)
N0603R105KCT(RoHS)
2_70_3270 IC MPU STM32F102R8T6 32-BIT 64K FLASH 48MHZ
3.3V W/USB TQFP-64 1U7
2-50-4149 DIODE SIGNAL 1N4148 100V 200mA SOT-23 2 D1-2 Digi-Key Corporation
TAITRON COMPONENTS
INCORPORATED
FAIRCHILD SEMI
MMBD4148FSCT-
ND(RoHS)
MMBD4148
MMBD4148FSCT(RoHS)
2-51-4401 TRANS NPN 2N4401 40V 1A SOT-23 7 Q9-11 Q13 Q15 Q17-18 FAIRCHILD SEMI
Micro Commercial Components
ON SEMICONDUCTOR
DIODES INC.
MMBT4401
MMBT4401-TP(RoHS)
MMBT4401LT1G(RoHS)
MMBT4401-7-F(RoHS)

PADS File: C:\PADS Projects\BillOfMaterials.rep
Date: 5/28/2010
Time: 1:34:28 PM
P/N Description Qty Ref. Des. Approved Mfr. Mfr's P/N
2-51-4403 TRANS PNP 2N4403 40V 800mA SOT-23 6 Q3 Q5-7 Q12 Q14 FAIRCHILD SEMI
DIODES INC.
ON SEMICONDUCTOR
Micro Commercial Components
MMBT4403
MMBT4403-7-F(RoHS)
MMBT4403LT1G(RoHS0
MMBT4403-TP(RoHS)
2-54-2114 TRANS SMALL-SIGNAL NPN 2SD2114K/BBV SC59 4 Q1-2 Q4 Q8 ROHM 2SD2114KT146V
2-71-0974 IC TS974 QUAD OP-AMP RAIL-TO-RAIL OUTPUT LOW-
NOISE SOP-14 1 U3 ST MICROELECTRONICS TS974ID
2-71-1324 IC LMV324 QUAD OP AMP LOW VOLTAGE RAIL-TO-
RAIL OUTPUT SOP-14 1 U8 NATIONAL SEMICONDUCTOR NATIONAL SEMICONDUCTOR LMV324M/NOPB(RoHS) LMV324M
2-71-3204 IC OP-AMP QUAD MC33204 RAIL-TO-RAIL LOW-
VOLTAGE SOP-14 1U1
2-82-0011 IC MCU IPOD AUTH CO-PROC 2.0B CLASS 6 (iPod &
iPhone) QFN-20 1 U6 Avnet, Inc. MFI341S2164
2-85-0403 IC VOLTAGE INVERTER CHARGE PUMP UNREG
TPS60403 SOT23-5 2 U4-5 TEXAS INSTRUMENTS INC. TPS60403DBV
3-20-0026 LED YELLOW CLEAR (NON-DIFFUSED) WIDE-ANGLE
APHK1608SYCK 0603 8 LED1-8 KINGBRIGHT APHK1608SYCK(RoHS)
4-01-0018 JACK RCA SINGLE 2-PIN FEMALE PCB-MNT R-A WHT 2 J2 J6 Zhejiang Chunsheng Electronics
Co., LTD. RCA-105(RoHS)
4-03-0012 JACK 3.5mm 4-PIN FEM PCB-MNT 90-DEG 1 J1 Zhejiang Chunsheng Electronics
Co., LTD. PJ-314
4-14-2000 HEADER DIL 20-PIN 2mm MALE SHRD 1 J10 JAE ELECTRONICS LY20-20P-DT1-P5
4-15-1005 HEADER SIL 5-PIN 2mm SHRD 1 J5 JAE ELECTRONICS IL-S-5P-S2T2-EF
4-15-1006 HEADER SIL 6-PIN 2mm SHRD 2 J7-8 JAE ELECTRONICS IL-S-6P-S2T2-EF
4-15-1008 HEADER SIL 8-PIN 2mm SHRD 1 J3 JAE ELECTRONICS IL-S-8P-S2T2-EF
7-01-0058 CRYSTAL 8 MHz PARALLEL 18pF SMD HC-49/UP 1 X1 ECLIPTEK INC
YOKETANT CORP EC1SM-8.000M-TR R49SSB-008000-FA-18-30
-
YA
7-20-0070 INDUCTOR FERRITE BEAD 120 OHMS @ 100MHZ
200mA 0805 6 L1-4 R9 R11 MURATA MFG. CO. BLM21BB121SN1(RoHS)
7-20-0080 INDUCTOR FERRITE BEAD 1000 OHMS @ 100MHZ
100mA 0603 11 L5-8 R55 R77 R99-100 R103-105 MURATA MFG. CO. Superworld Electronics PTE LTD
Digi-Key Corporation
BLM18AG102SN1(RoHS)
Z2K102-RB-10(RoHS)
490-1015-1-ND(RoHS)
DRM_0-13-2432 RES 24.3K OHM 1/10W 1% 0603 1 R45

PADS File: C:\PADS Projects\BillOfMaterials.rep
Date: 5/28/2010
Time: 1:34:28 PM
P/N Description Qty Ref. Des. Approved Mfr. Mfr's P/N
DRM_AP6256A_S
OT-223-5 Voltage Regulator Adjustable 800mA SOT-25 "A" Pinout 1 U2 Anwell Semiconductor Corp AP6256A-ADJ SOT-25
DRM_CAPE_2_5
_5_10uF_25V CAP 10uF ELEC 20% 25V 2x5x5mm 1 C18
DRM_CON_FLAT
_FLEX_16-
PIN_TOP-
CON_90_SM
Con Flat Flex, 16-Pin, 90deg, SM, Top Contacts 1 J9
DRM_CON_MINI_
USB_5P_SMP CON MINI USB 5 PIN SMT 1 J4
DRM_PIC16F722
_SSOP IC_MCU_28PIN 1 U9 Microchip PIC16F722-I/SS
DNS_1-62-0105 DO NOT STUFF CAP 1uF X5R 0603 10% 10V 2 C58 C60 Pan Overseas Electronic Co., LTD.
Walsin Technology Corporation
Pan Overseas Electronic Co., LTD.
N0603X105KCT(RoHS)
0603B105K100CT(RoHS)
N0603R105KCT(RoHS)

AD03MNA00B.sch

9-79-0564-B-0

9-40-0564-B

6/25/2010

AD03 MAIN PCB

ASSY NUMBER:

1

2

3

4

5

6

D

C

B

A

C

D

B

A

COMPANY:

TITLE:

PART NUMBER:

FILENAME:

SCALE:

RELEASED:

DRAWN:

DATED:

DATED:

SIZE:

SHEET:

OF

2

1

C

AKAI

DRM

STM32 JTAG

TO iPod_DOCK

Octave Up

Octave Down

RC filter for VDDA

POTS

FROM PITCH/

MOD WHEEL

NC

NC

NC

NC

IPOD Authentication

Coprocessor

SPARES

Octave Down

Octave Up

PUSHBUTTON1

PUSHBUTTON2

PUSHBUTTON3

PUSHBUTTON4

PUSHBUTTON5

PUSHBUTTON6

NC

NC

ACC->iPod

iPod->ACC

ACC_POWER

GND

IPOD_DET

AUD_L_IN

AUD_R_IN

AUD_OUT_L

AUD_R_OUT

IPOD_DET

AUD_RET

GND

GND

NC

NC

Battery Voltage Monitor

DNS

DNS

CONNECTOR TO

POWER PCB

USB DISCONNECT

USB

NC

NC

C21

0.1uF

R87

100k

1

VBAT

2

PC13-TAMPER-RTC

3

PC14-OSC32_IN

4

PC15-OSC32_OUT

5

PD0-OSC_IN

6

PD1-OSC_OUT

7

RST

8

PC0

9

PC1

10

PC2

11

PC3

12

VSSA

13

VDDA

14

PA0-WKUP

15

PA1

16

PA2

48

47

46

PA13

45

PA12

44

PA11

43

PA10

42

PA9

41

PA8

40

PC9

39

PC8

38

PC7

37

PC6

36

PB15

35

PB14

34

PB13

33

PB12

49

PA14

50

PA15

51

PC10

52

PC11

53

PC12

54

PD2

55

PB3

56

PB4

57

PB5

58

PB6

59

PB7

60

BOOT0

61

PB8

62

PB9

63

64

32

VDD

31

VSS

30

PB11

29

PB10

28

PB2

27

PB1

26

PB0

25

PC5

24

PC4

23

PA7

22

PA6

21

PA5

20

PA4

19

18

17

PA3

U7

JAB_2_70_3270

STM32F102R8T6

X1

8 MHz

C28

18pF

C35

18pF

R59

100 ohm

R53

10K

R52

10K

C40

0.1uF

4

RES

13

SDA_SOMI

12

SCL_SIMO

14

MODE0_SPICLK

2

MODE1_SPISS

5

VCC

11

VSS

U6

MFI341S2164

2

RA0/AN0/SS/VCAP

3

RA1/AN1

4

RA2/AN2

5

RA3/AN3/VREF

6

RA4/CPS6/T0CKI

7

RA5/AN4/CPS7/SS/VCAP

10

RA6/OSC2/CLKOUT/VCAP

9

RA7/OSC1/CLKIN

21

RB0/AN12/CPS0/INT

22

RB1/AN10/CPS1

23

RB2/AN8/CPS2

24

RB3/AN9/CPS3/CCP2

25

RB4/AN11/CPS4

26

RB5/AN13/CPS5/T1G

27

RB6/ICSPCLK/ICDCLK

28

RB7/ICSPDAT/ICDDAT

11

RC0/T1OSO/T1CKI

12

RC1/T1OSI/CCP2

13

RC2/CCP1

14

RC3/SCK/SCL

15

RC4/SDI/SDA

16

RC5/SDO

17

RC6/TX/CK

18

RC7/RX/DT

1

RE3/MCLR/VPP

20

VDD

8

VSS1

19

VSS2

U9

DRM_PIC16F722_SSOP

R91

10K

R88

10K

R85

10K

LED1

YEL

R69

100 ohm

LED2

YEL

R72

100 ohm

C41

0.1uF

C24

0.1uF

C52

0.1uF

C46

0.1uF

C27

0.1uF

C39

0.01uF

R63

1 ohm

C22

4.7uF,10V

C45

4.7uF,10V

R82

15.8k 1%

R75

47.5k 1%

5

+

6

-

7

U8-B

LMV324M

R68

15.8k 1%

C48

0.1uF

R84

3.24k 1%

R83

3.32k 1%

C43

0.1uF

R74

15.8k 1%

R60

47.5k 1%

3

+

2

-

1

U8-A

LMV324M

R61

15.8k 1%

C47

0.1uF

R80

3.24k 1%

R81

3.32k 1%

C38

0.1uF

C36

0.1uF

C44

0.1uF

C34

0.1uF

1

2

3

4

5

6

J7

R73

10K

C32

0.1uF

10

+

9

-

8

U8-C

LMV324M

12

+

13

-

14

U8-D

LMV324M

-v

+v

4

11

U8-E

LMV324M

C37

0.1uF

SW1

SW2

SW3

SW4

SW5

SW6

SW7

SW8

C29

1uF

C31

1uF

R56

10K

R65

10K

R66

10K

R101

100 ohm

R98

100 ohm

R100

1

2

3

4

5

J5

1

2

3

4

5

6

7

8

J3

R64

200k 1%

R62

100k 1%

C33

0.01uF

R67

100 ohm

C42

0.1uF

LED3

YEL

R78

100 ohm

LED4

YEL

R79

100 ohm

C53

1uF

C50

1uF

Q13

MBT4401

R37

47K

R46

36K

Q15

MBT4401

R51

1.50k 1%

R57

22 ohm

R58

22 ohm

R36

10K

C30

1uF

Q18

MBT4401

R93

10K

R92

100k

C55

0.1uF

LED5

YEL

R94

100 ohm

LED6

YEL

R102

100 ohm

LED7

YEL

R96

100 ohm

LED8

YEL

R97

100 ohm

R95-A

10K

R95-B

10K

R95-C

10K

R95-D

10K

R90-A

10K

R90-B

10K

R90-C

10K

R90-D

10K

C49

1uF

R54

10K

Q17

MBT4401

R86

10K

R89

100k

C54

0.1uF

C51

0.1uF

1

2

3

4

5

6

J8

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

J9

686 116 141 22

9

MP1

8

MP2

1

VBUS

2

D-

3

D+

4

ID

5

SH

6

MP3

7

MP4

J4

DRM_CON_MINI_USB_5P_SMP

VPP

3V3

GND

DAT

CLK

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

J10

R70

1K

R71

1K

R76

100k

L6

L5

L7

L8

R55

R77

R99

R103

R104

R105

C59

100pF

+3.3V

COPROC_RESET

COPROC_SCL

COPROC_SDA

KEY_DATA_CLK

KEY_DATA_MOSI

READY_TO_RECEIVE

KEY_DATA_SPARE2

USB-

USB+

USB_DIS

+3.3V

STM_TRST

STM_TDI

STM_TMS

STM_TCK

STM_TDO

STM_RST

STM_TMS

STM_TCK

STM_TDI

STM_TDO

STM_TRST

ACC_TO_IPOD

IPOD_TO_ACC

COPROC_SCL

COPROC_SDA

+3.3V

ANALOG_TOP

ANALOG_TOP

ANALOG_TOP

PITCH

MOD

ANALOG_TOP

IPOD_DET

IPOD_ACC_PWR

ANALOG_TOP

+3.3V

PITCH

MOD

SEL6

AUX_POWER

USB_POWER

COPROC_RESET

ACC_READY

AUDIO_RAIL_EN

KEY_DATA_SPARE2

READY_TO_RECEIVE

+3.3V

+3.3V

ACC_TO_IPOD

IPOD_TO_ACC

IPOD_ACC_PWR

IPOD_DET

IPOD_OUT_L

IPOD_OUT_R

IPOD_RETURN

V_BAT

STM_RST

+3.3V

V_AUX

V_BAT

+3.3V

+3.3V

USB-

USB+

USB_DIS

+VRAW

VBUS

+3.3V

USB_POWER

LED6

LED7

LED8

LED6

LED7

LED8

+VRAW

KEY_DATA_MOSI

KEY_DATA_CLK

+3.3V

AUX_POWER

V_AUX

ICSPDAT

ICSPCLK

+3.3V

SEL6

KEY_RD0

KEY_RD2

KEY_RD3

KEY_RD4

KEY_RD5

KEY_RD6

KEY_RD7

SEL5

SEL4

SEL3

SEL2

SEL1

SEL0

SEL5A

SEL4A

SEL3A

SEL2A

SEL1A

+3.3V

MUTE_CONTROL

ACC_READY


6/25/2010

9-79-0564-B-0

9-40-0564-B

AD03MNA00B.sch

ASSY NUMBER:

1

2

3

4

5

6

D

C

B

A

C

D

B

A

COMPANY:

TITLE:

PART NUMBER:

FILENAME:

SCALE:

RELEASED:

DRAWN:

DATED:

DATED:

SIZE:

SHEET:

OF

2

2

C

AD03 MAIN PCB

AKAI

DRM

BUFFER GAIN = 1

MAIN RIGHT

MAIN LEFT

MUTE CONTROL

HEADPHONE DRIVERS

PHONES

MAX SIGNAL FROM iPod

0.9Vrms = 2.55Vpp

Gain = 2.49

(+9.24dBu)

BUFFER GAIN = 1

MAX OUTPUT = 6.35Vpp

LEFT

RIGHT

+4VA

STUFF R134 TO ENABLE AUDIO

POWER RAILS ON STARTUP

-4VA

+4V and -4V Audio Rails will not

become active until AUDIO_RAIL_EN

is pulled high by STM32 Microcontroller.

DNS

DNS

R17

1.15k 1%

C6

1000pF

R13

1.15k 1%

C2

1000pF

Q4

2SD2114K

R10

3.3K

Q8

2SD2114K

1

2

3

Q7

MBT4403

1

2

3

Q3

MBT4403

R1

10k 1%

R15

10k 1%

L2

BLM21BB121SN1

L4

BLM21BB121SN1

3

+

2

-

1

U3-A

TS974

5

+

6

-

7

U3-B

TS974

R9

BLM21BB121SN1

R11

BLM21BB121SN1

1

2

S1

1

2

S3

R12

3.3K

R2

100k

R8

100k

1

2

3

Q14

MBT4403

D1

MMBD4148

D2

MMBD4148

C18

10uF 25V

Q10

MBT4401

R40

10k 1%

R20

62 ohm

R21

62 ohm

R18

62 ohm

R19

62 ohm

Q2

2SD2114K

1

2

3

Q6

MBT4403

R14

10k 1%

Q1

2SD2114K

1

2

3

Q5

MBT4403

R7

10k 1%

3

+

2

-

1

U1-A

MC33204

5

+

6

-

7

U1-B

MC33204

10

+

9

-

8

U1-C

MC33204

12

+

13

-

14

U1-D

MC33204

R30

47K

C19

47uF,16V

R38

47K

R39

100k

R31

100k

R5

3.3K

R3

3.3K

R6

100k

R4

100k

L1

BLM21BB121SN1

L3

BLM21BB121SN1

C1

150pF

C3

150pF

1

2

S4

1

2

S2

-v

+v

4

11

U3-E

TS974

10

+

9

-

8

U3-C

TS974

12

+

13

-

14

U3-D

TS974

R22

10k 1%

R23

10k 1%

R33

24.9k 1%

R25

10k 1%

R27

24.9k 1%

R26

10k 1%

R24

24.9k 1%

R16

100 ohm 1%

R42

24.9k 1%

C10

330pF

C5

330pF

C8

330pF

C4

22uF,16V

C7

22uF,16V

-v

+v

4

11

U1-E

MC33204

C16

0.1uF

C20

0.1uF

C11

0.1uF

C9

0.1uF

C12

22uF,16V

C13

22uF,16V

R49

10k 1%

R47

10k 1%

R50

10k 1%

R48

10k 1%

Q11

MBT4401

R41

10K

CW

1

2

3

P1-A

CW

4

5

6

P1-B

C17

0.1uF

C14

0.1uF

R44

10k 1%

R45

24.3k 1%

1

OUT

2

IN

3

CFLY-

4

GND

5

CFLY+

U5

TPS60403

1

OUT

2

IN

3

CFLY-

4

GND

5

CFLY+

U4

TPS60403

C25

1uF

C26

1uF

C15

1uF

C23

47uF,16V

Q9

MBT4401

R34

10K

R35

10K

1

2

3

Q12

MBT4403

R32

100k

R28

1M

R29

10K

R43

10K

C56

1uF

C57

47uF,16V

2

4

3

1

J1

PJ-314

J2

J6

1

VIN

3

SD

5

VOUT

4

ADJ

2

G

U2

DRM_AP6256A_SOT-25_PKG-A

C58

1uF

C60

1uF

+VRAW

+VRAW

-4VA

-4VA

+VRAW

+VRAW

+VRAW

+VRAW

-4VA

IPOD_OUT_L

IPOD_OUT_R

IPOD_RETURN

-4VA

MUTE

MUTE

MUTE

MUTE

+4VA

-4VA

MUTE_CONTROL

AUDIO_RAIL_EN

-4VA

+4VA

+VRAW


Confidential Akai Service Manual
AD03 Power supply
BOM and schematic

PADS File: C:\PADS Projects\BillOfMaterials.rep
Date: 5/28/2010
Time: 10:14:18 AM
P/N Description Qty Ref. Des. Approved Mfr. Mfr's P/N
0-12-0102 RES 1K OHM 1/10W 5% 0603 3 R2 R6 R8
0-12-0104 RES 100K OHM 1/10W 5% 0603 4 R5 R7 R9-10 PANASONIC INDUSTRIAL CO
Walsin Technology Corporation
Digi-Key Corporation
ERJ-3GEYJ104V
WR06X101_J
P100KGCT-ND
0-12-0105 RES 1M OHM 1/10W 5% 0603 2 R3-4
0-12-0824 RES 820K OHM 1/10W 5% 0603 1 R1
1-08-1472 CAP 47uF ELEC 16V 2.5x6.3x5mm 4 C3 C5 C9 C11 ELNA RC3-16V470M
1-62-0104 CAP 0.1uF X7R 0603 10% 50V 6 C1-2 C6-8 C10 Walsin Technology Corporation
KEMET Electronics Corporation
Digi-Key Corporation
0603B104K500C
C0603C104K5RACTU
399-5089-1-ND
1-62-0105 CAP 1uF X5R 0603 10% 10V 1 C4 Pan Overseas Electronic Co., LTD.
Walsin Technology Corporation
Pan Overseas Electronic Co., LTD.
N0603X105KCT(RoHS)
0603B105K100CT(RoHS)
N0603R105KCT(RoHS)
2-50-4149 DIODE SIGNAL 1N4148 100V 200mA SOT-23 2 D3 D6 Digi-Key Corporation
TAITRON COMPONENTS
INCORPORATED
FAIRCHILD SEMI
MMBD4148FSCT-ND(RoHS)
MMBD4148
MMBD4148FSCT(RoHS)
2-51-0140 DIODE POWER SCHOTTKY MBRS140LT3 40V 1A 2 D2 D5 Digi-Key Corporation
DIODES INC.
MICRO SEMI
ON SEMICONDUCTOR
LITEON SEMI
MBRS140T3OSCT-ND(EOL)
MBRS140T3
SMB5819
MBRS140LT3G(RoHS)(EOL)
SK14
2-51-4401 TRANS NPN 2N4401 40V 1A SOT-23 2 Q1-2 FAIRCHILD SEMI
Micro Commercial Components
ON SEMICONDUCTOR
DIODES INC.
MMBT4401
MMBT4401-TP(RoHS)
MMBT4401LT1G(RoHS)
MMBT4401-7-F(RoHS)
2-51-4403 TRANS PNP 2N4403 40V 800mA SOT-23 1 Q3 FAIRCHILD SEMI
DIODES INC.
ON SEMICONDUCTOR
Micro Commercial Components
MMBT4403
MMBT4403-7-F(RoHS)
MMBT4403LT1G(RoHS0
MMBT4403-TP(RoHS)
2-51-5100 DIODE POWER S1A 50V 1A SMA 1 D4 FAIRCHILD SEMI
DIODES INC.
LITEON SEMI
S1A (RoHS)
S1A-13-F (RoHS)
S1A (RoHS)
2-52-5242 DIODE ZENER MMBZ5242B 12V SOT-23 1 D1 DIODES INC.
ON SEMICONDUCTOR
FAIRCHILD SEMI
MMBZ524B-7-F(RoHS)
MMBZ5242BLT1G(RoHS)
MMBZ5242B(RoHS)

PADS File: C:\PADS Projects\BillOfMaterials.rep
Date: 5/28/2010
Time: 10:14:18 AM
P/N Description Qty Ref. Des. Approved Mfr. Mfr's P/N
2-54-6306 TRANS SMALL-SIGNAL DUAL P-CHAN EN-MOSFET
FDC6306P ISOLATED SSOT-6 1 U1 FAIRCHILD SEMI FDC6306P
2-61-0033 IC REG VOLTAGE BA033FP LDO 3.3V 1A TO-252 1 U2 ROHM BA033FP
2-61-2940 REG VOLTAGE LM2940IMP-5.0 LDO 5V SOT-223 1 U3 NATIONAL SEMICONDUCTOR
UTC (UnisonicTechnologies) LM2940IMP-5.0(RoHS) LM2940-5.0V
4-15-0212 HEADER SIL 2-PIN 2mm MALE 90° SHRD 1 J2 Leoco Corporation
J.S.T. MFG CO. LTD 2011P02H000(RoHS) S2B-PH-K-S(LF)(SN)(RoHS)
4-15-0402 HEADER SIL 4-PIN 2mm 90DEG SHRD 1 J4 J.S.T. MFG CO. LTD
Leoco Corporation S4B-PH-K-S(LF)(SN)(RoHS) 2011P04H000(RoHS)
4-15-0608 HEADER SIL 6-PIN 2mm MALE 90° SHRD 1 J3 J.S.T. MFG CO. LTD S6B-PH-KL(LF)(SN)
4-16-0003 JACK 6.3mm BARREL (P6) 2.0mm CENTER PIN 1 J1 JYE TAI PRECISION IND.CO.LTD. DJ-0702B-020
6-02-0001 SWITCH DPDT 1 SW1 ALPHA
E-QUO CO. LTD SP70010-0202-13F1-NN
7-20-0071 INDUCTOR FERRITE BEAD 1000 OHMS @ 100MHZ
1.5A 1806 4 L1-4 MURATA MFG. CO. BLM41PG102SN1

5/27/10

9-79-0565-5-0

9-40-0565-5

AD03PS406D.sch

DRM

AKAI

AD03

ASSY NUMBER:

1

2

3

4

5

6

D

C

B

A

C

D

B

A

COMPANY:

TITLE:

PART NUMBER:

FILENAME:

SCALE:

RELEASED:

DRAWN:

DATED:

DATED:

SIZE:

SHEET:

OF

1

1

C

+VRAW

+3.3V

BATTERY: 4 AA

DC 6V 1.5A pos tip

AL7-40-0052

3.4 - 6.6V

NC

AUX POWER

NC

NC

+5V

IPOD CHARGE

BATTERY POWER

Linear 3.3V Regulator used

Max 3.3V load = 60mA

Max Power Dissipation with

Battery @6.6V = 200mW

CONNECTOR TO

MAIN PCB

CONNECTOR TO

DOCK PCB

D4

S1A

1

2

J2

1

2

3

4

5

6

SW1

1

2

S1

1

2

S2

1

2

3

Q3

MBT4403

R6

1K

R2

1K

R8

1K

C8

0.1uF

C1

0.1uF

R1

820K

G

D

S

U1-B

FDC6306P

D1

12V

G

D

S

U1-A

FDC6306P

R3

1M

C4

1uF

C11

47uF,16V

C9

47uF,16V

C6

0.1uF

C10

0.1uF

C3

47uF,16V

C2

0.1uF

GND

1

IN

2

3

OUT

U2

BA033FP

C7

0.1uF

C5

47uF,16V

L4

BLM41PG102SN1

L1

BLM41PG102SN1

L3

BLM41PG102SN1

L2

BLM41PG102SN1

1

2

3

J1

P6

D6

MMBD4148

R7

100k

D3

MMBD4148

R5

100k

D5

MBRS140LT3

D2

MBRS140LT3

Q1

MBT4401

Q2

MBT4401

R4

1M

1

2

3

4

5

6

J3

S6B-PH-KL(LF)(SN)

1

2

3

4

J4

S4B-PH-K-S(LF)(SN)

R9

100k

R10

100k

1

IN

3

OUT

2

GND

4

TAB_G

U3

DRM_2_61_2940

+VRAW

+5V

+VRAW

+3.3V

V_BAT

+3.3V

V_AUX

V_BAT

+VRAW

+5V

V_AUX

VBUS


Confidential Akai Service Manual
AD03 Dock
BOM and schematic

PADS File: C:\PADS Projects\BillOfMaterials.rep
Date: 5/28/2010
Time: 10:08:20 AM
P/N Description Qty Ref. Des. Approved Mfr. Mfr's P/N
0-12-0000 RES 0.0 OHM 1/10W 5% 0603 2 R8-9 Yageo
Digi-Key Corporation
Walsin Technology Corporation
RC0603JR-070RL
311-0.0GRCT-ND
WR06X000P
0-12-0104 RES 100K OHM 1/10W 5% 0603 2 R10-11 PANASONIC INDUSTRIAL CO
Walsin Technology Corporation
Digi-Key Corporation
ERJ-3GEYJ104V
WR06X101_J
P100KGCT-ND
0-13-1000 RES 100 OHM 1/10W 1% 0603 SMD 1 R2
0-13-1001 RES 1.00K OHM 1/10W 1% 0603 1 R1
0-13-4992 RES 49.9K OHM 1/10W 1% 0603 2 R6-7
0-13-5493 RES 549K OHM 1/10W 1% 0603 1 R3
0-13-7502 RES 75.0K OHM 1/10W 1% 0603 2 R4-5
2-54-0138 TRANS SMALL-SIGNAL N-CHAN EN-MOSFET BSS138 SOT-23 2 Q1-2 FAIRCHILD SEMI BSS138
4-10-0024 CON 30-PIN MALE IPOD OMNI TALL W/TAB PCB-MNT 1 J1 Avnet, Inc. MFI514S0117
4-15-1005 HEADER SIL 5-PIN 2mm SHRD 1 J3 JAE ELECTRONICS IL-S-5P-S2T2-EF
4-15-1006 HEADER SIL 6-PIN 2mm SHRD 1 J2 JAE ELECTRONICS IL-S-6P-S2T2-EF
4-15-1008 HEADER SIL 8-PIN 2mm SHRD 1 J5 JAE ELECTRONICS IL-S-8P-S2T2-EF
DNS_4-15-1006 DO NOT STUFF HEADER SIL 6-PIN 2mm SHRD 1 J4 JAE ELECTRONICS IL-S-6P-S2T2-EF

AD03DK300A.sch

9-79-0566-3-0

9-40-0566-3

5/27/2010

DRM

1

1

B

AD03 Dock PCB

AKAI

COMPANY:

SCALE:

SHEET: OF

DATED:

DATED:

RELEASED:

A

B

D

1

2

3

4

5

6

D

C

A

B

C

DRAWN:

TITLE:

PART NUMBER:

ASSY NUMBER:

FILENAME:

SIZE:

NC

NC

NC

NC

NC

NC

NC

NC

USB+POWER

iPOD_COMMUNICATION

VIDEO

AUDIO

+5V

USB_D-

USB_D+

GND

SHIELD

ACC->iPod

iPod->ACC

ACC_POWER

GND

ACC_READY

SVIDEO_Y

GND

SVIDEO_C

GND

COMPOSITE

GND

AUD_L_IN

AUD_R_IN

AUD_OUT_L

AUD_R_OUT

IPOD_DET

AUD_RET

GND

GND

(DNS--RESERVED FOR FUTURE USE)

NC

NC

NC

NC

+5V

This zero ohm resistor was

added to simplify routing.

R4

R5

R6

R7

500mA

1.0A

49.9K

49.9K

49.9K

49.9K

75.0K

75.0K

43.2K

75.0K

RESISTOR VALUES TO

SELECT CHARGING CURRENT

RESERVED

RESERVED

RESERVED

RESERVED

RESERVED

RESERVED

DGND

DGND

RESERVED

1

2

3

4

USB_D+

5

6

USB_D-

7

8

USB_POWER

9

10

ACC_ID

11

12

13

ACC_PWR

14

RESERVED

15

USB_GND

16

DGND

17

18

TX_TO_IPOD

19

RX_FROM_IPOD

20

ACC_DET(GND)

21

SVIDEO_Y

22

SVIDEO_C

23

COMP_VIDEO

24

REM_SENSE

25

LINE_IN_L

26

LINE_IN_R

27

LINE_OUT_L

28

LINE_OUT_R

29

AUD_RET

30

IPOD_DET

31

CH_GND

32

33

34

35

J1

514S00117

R3

549k 1%

1

2

3

4

5

6

7

8

J5

1

2

3

4

5

J3

1

2

3

4

5

6

J4

R2

100 ohm 1%

R1

1.00k 1%

R5

75.0k 1%

R7

49.9k 1%

R4

75.0k 1%

R6

49.9k 1%

R8

0 ohm

R9

0 ohm

1

2

3

4

5

6

J2

G

S

D

Q1

BSS138

G

S

D

Q2

BSS138

R10

100k

R11

100k

IPOD_AUD_RET

IPOD_OUT_R

IPOD_OUT_L

IPOD_IN_L

IPOD_IN_R


Confidential Akai Service Manual
AD03 Keybed PCB
Schematic