Akai MPK225 User manual

SPECIFICATIONS
Note keys 25 keys; velocity-sensitive; 10-octave range with octave up/down
buttons or transposition
Pads 8
8 8
8 pads; velocity- and pressure-sensitive; 4
4 4
4 banks
Knobs 8
8 8
8 360o encoders; 3
3 3
3 banks
Switches 4
4 4
4 switches; LED-backlit; 3
3 3
3 banks
Inputs / Outputs
1
1 1
1 USB port
1
1 1
1 /4" (6.35mm) TRS expression pedal input
1
1 1
1 /4" (6.35mm) TS sustain pedal or footswitch input
1
1 1
1 5-pin MIDI in
1
1 1
1 5-pin MIDI out
Power via computer USB bus or USB charger (sold separately)
via power adapter (sold separately): 6V DC, A, center-positive
Dimensions
(width x depth x height)
9.25" x .75" x 3.63"
48.9 cm x 29.8 cm x 9.2 cm
Weight 6.09 lbs.
2.76 kg
SERVICE MANUAL
MODEL:MPK225

Technical Specification
Technical SpecificationTechnical Specification
Technical Specification
DISASSEMBLY PROCEDURES
1. DISASSEMBLE THE CABINET AND TOP PANEL. (Fig.1)
(A) REMOVE 15 SCREWS FROM BOTTOM PANEL.
(Fig.1)
2. DISASSEMBLE THE MAIN PCB ASS’Y. (Fig.2)
(A) REMOVE 3 SCREWS FROM THE MAIN PCB ASS’Y.
(Fig.2)

3.DISASSEMBLE THE TOP RIGHT FRONT PCB ASS’Y.(Fig.3)
(A) REMOVE 9 KNOBS.
(B) REMOVE 8 NUTS AND 8 WASHERS.
(C) REMOVE 8 SCREWS FROM THE TOP RIGHT FRONT PCB ASS’Y.
(Fig.3)
4.DISASSEMBLE THE SWITCH PCB ASS’Y.(Fig.4)
(A) REMOVE 3 SCREWS FROM THE TOP LEFT FRONT PCB ASS’Y
(Fig.4)

5.DISASSEMBLE THE FSR PCB. (Fig.5)
(A) REMOVE 7 SCREWS FROM THE FSR PCB.
(Fig.5)
6.DISASSEMBLE THE PITCH/MOD PCB ASS’Y. (Fig.6)
(A) REMOVE 4 SCREWS FROM THE PITCH/MOD PCB ASS’Y.
(Fig.6)

WIRING DIAGRAM
(US/AUS)
SEQUENCE NO OF EXPLODE DIAGRAM WILL BE MARKED ON REF. COLUMN OF BOM LIST

PACKING DIAGRAM
(US)

PACKING DIAGRAM
(AUS)

EXPLODE DIAGRAM
(US/AUS)

LEVEL
P/N DESCRIPTION QTY REF
0AD2AAKA11 MPK225 25Key Keyboard Controller 0
1 BAGL-55A CABLE CLIP 55L 2 25
1CN0100000503 Flat Cable GND Wire Black Length 50mm 1
Line/Female
1CN1620003001 Flat Cable 16pin 300mm Female/Female 1 30
1 EVA1504460 EVA 1 37
1FFC1410001501 FFC 14P Pitch:1.0mm Length:150mm 1 27
1 FFC1610001001 CONNECTOR 1 26
1FFC2610002001 Connector 26P 200mm Pitch:1mm 1 28
1 FFC3010002001 FFC 30Pin Pitch:1mm Length:200mm 1 29
1LAC22AKA288 Serial Number Label 1
1LAC22AKA42 Sticker S/N Ableton 1
1 LAC53AKA309 Safety Label 1
1LAC62AKA289 Bar Code Label(CODE 39) 0.5
1 LAC62AKA304 Label(GTIN14) 0.5
1LCMWH2004A LCMWH2004A-TMI-JTV 6 o'clock 1 13
1 MT0705517 Copper 1 24
1NP215AKA35 Name Plate 1 12
1 OTAD10FSR AD10 FSR 1 16
1PAD2AAKA11 Packing Assembly 1
2AA821535X USB Cable L:1M 1
2 AL7-51-0226-M Safety Manual 1
2CGAD2A310AKA11 Gift Box 1
2 CTAD2A513AKA11 Outer Box 0.5
2GEAKA17 Ableton Card 1
2 GEAKA20 Generic Card 1
2LAC67YAH261 Label φ8mm Green 0.5
2 OPAD2AAKA01 Fast Instruction 1
2PE230370402B07 Poly Bag 230*370mm 1
2PL370150040 Poly Foam 1
2 PLAD2A01 Poly Foam(L) 1
2PLAD2A02 Poly Foam(R) 1
2 PUAD2501 EPE FOAM 1
2SD890890 Soft Sheet 1
2 TSAKAI-01 DVD Ableton Live 9 Lite 1
1PT1110685 Button Push 16 5
1 PT1304315 Power Cable Retainer 1 22
1PT1504326 Light Pipe 2 4
1 PT1504409 FILM COVER LENS 1 38
1PT1510611301 Knob Print 1 1
2 PT15106113 Knob 1
1PT15106121 Knob 4 8
1 PT15106122 Knob 2 6
1PT15106125 Button(B;clear) 4 11
1 PT1510615 SWITCH BUTTON 1 23
1PT15106150 Knob 8 2
1 PT15106151 Buttom(B;Cool Gray 6C) 1 10
1PT15106154 Button Transport(185C) 1 9
1 PT151063902 Button Cursor Print 1 7
2PT1510639 BUTTON CURSOR(BLACK) 1
1 PT153003501 Panel-Printing(Painting) 1 3
2 PT1530035 Panel 1
1 PT1530324 Bottom Plate 1 18
AD2AAKA11 BOM

1 RU151062301 Rubber Knob 1 15
1 RU1530602 RUBBER FOOT 4 21
1 SC0208RBCI SCREW M2X8 PPC TAPPING 4 14
1 SC0308RBNI Screw M3X8 PRN Tapping 24 17
1 SC0310BIBI SCREW M3X10 PBB 1 36
1 SC0310RBBI Screw M3X10 PPB Tapping 6 19
1 SC0312RBNI Screw M3X12 PRN Tapping 15 20
1 TW25701AYAH0101 Keyboard Assembly(YH 25KEY) 1 35
2 BAGL-55A CABLE CLIP 55L 1
2 CN0225403601 Flat Cable 2Pin Pitch 2.54mm Single Row 1
Length 360mm Female Header/Pin Header
2 CN1625403901 Flat Cable Type 8P*2 Pitch 2.54mm Dual 1
Row Length 390mm Female/Female Header
2 KB25701AYAH01 25 Key board weighted with aftertouch 1
1 TWPC13A00902 Main PCB Assembly 1 34
2 AA822748X Diode BAV99 5 D2,3,7,9,11
2 AL0-17-0101 RES Array 4X100 1/10W 0603 11 R36,49,89,103,104,124~127,130,131
2 AL0-17-0103 RES Array 4X10K 1/10W 0603 1 R111
2 AL1-70-1471 Solid Tantalum Electrolytic 1 C50
Capacitors4.7uF/10V 20% A-SMD
2 AL2-50-4149 Diode Single 1N4148 100V 200mA SOT-23 1 D8
2 AL2-51-0140 Schottky Barrier Rectifiers Diode 2 D6,10
B140-13-F SMA
2 AL2-51-4401 Transistor 2N4401 NPN SOT-23 (Transistor 4 Q1,2,8,9
MMBT4401LT1 NPN SOT-23)
2 AL2-51-4403 Transistor 2N4403 PNP SOT-23 4 Q4,5,7,11
2 AL2-52-5242 Diode MMBZ5242B 1 D5
2 AL2-54-6306 Mosfet FDC6306P P-CH SSOT-6 1 U3
2 AL2-61-7223 IC NJU7223DL1-33 3.3V TO-252 1 U1
2 AL2-71-1324 IC LMV324 SOP-14 1 U8
2 AL2-73-4051 IC74HC4051 Single 8-Chan Mux 16P Soic 1 U4
2 AL4-00-0002 MIDI Jack 8P 90°Female 2 J4,5
2 AL4-02-0007 Jack 1/4 Stereo 7-Pin Fem Mini W/Grnd 2 J2,3
Lug Straight
2 AL4-08-0402 Con USB 4-Pin Female PC-MNT Horizontal 1 J6
2 AL4-14-0116 CONNECTOR 6P DIL 1 J10
2 AL4-15-0004 Connector 4P 2.54 180° 1 J12
2 AL6-02-0059 Switch push 2P2T Dual Row Lock 1 SW1
2 CS102J5003NPO CCAP SMD 1nF/50V 5% 0603 NPO 13 C12,14~16,43,61,62,64~69
2 CS103K5003X7R CCAP SMD 0.01uF/50V 10% 0603 X7R 2 C47,51
2 CS104K5003X7R CCAP SMD 0.1uF/50V 10% 0603 X7R 45 C1,4~6,9~11,13,17~20,22~24,28,30~33
C36~40,42,45,46,48,52,54~60,63,70~74
C163,171
2 CS105K1605X7R CCAP SMD 1uF/16V 10% 0805 X7R 4 C21,78,177,178
2 CS106K1606X7R CCAP SMD 10uF/16V 10% 1206 X7R 2 C53,176
2 CS180J5003NPO CCAP SMD 18pF/50V 5% 0603 NPO 2 C29,49
2 DIBAW56 Switch Diode BAW56 SOT-23 2 D4,13
2 DIPHLTV-356T-B Opticak Encode Senser Diode LTV-356T-B 1 U2
2 ECS10710D Capacitor Electrolytic 100UF 10V SMD-D 3 C3,165,181
2
ECS47525B Ecap 4.7uF/25V 4*5.4mm SMD 1 C2
2
FCN2S1002601 FCN Dual Touch 180°Pitch=1.0mm 26P 1 J14
2
FCN2S1003001 FCN Dual Touch 180°Pitch=1.0mm 30P 1 J16
2
ICLM393DR IC OPA LM393DR SOIC-8 1 U5
2
ICNJM2387 IC NJM2387 1 U59
2
ICSN74HC02D IC SN74HC02D 1 U9
2
ICYH102M09 IC(STM32100C4T6B+Program)LQFP-48 1 U7

3
ICSTM32F100C4T6 IC STM32F100C4T6B LQFP-48 1 (U7)
2
ICYH103M04 IC(STM32F103VCT6+Program)LQFP-100 1 U12
3
ICSTM32F103VCT6 IC STM32F103VCT6 LQFP-100 1 (U12)
2
JKDJ-0702B-020 DC Base 2.0MM 1 J7
2
PC13A009 Main PCB 4Layer FR-4 140*75MM 1 -
2
PT1304702 PLATE 1 (J5)
2
RS000010J03 RES 0Ω5% SMD 0603 20 R2~5,13,26,32~35,62,73,79,80,85,94,97
R98,100,105
2
RS000110J03 RES 1Ω5% SMD 0603 1 R99
2
RS001K10F03 RES 1K 1% SMD 0603 8 R15,28~30,38,39,69,71
2
RS002210F03 RES 22Ω1% SMD 0603 2 R45,46
2
RS004710F03 RES 47Ω1% SMD 0603 2 R20,67
2
RS010010F03 RES 100Ω1% SMD 0603 9 R50~52,57,65,68,102,113,129
2
RS010K10F03 RES 10K 1% SMD 0603 28 R1,6,8,10,11,14,19,22,27,42~44,90,101
R112,115,116,138,140~142,500~503
R505~507
2 RS011K10F03 RES 11K 1% SMD 0603 2 R82,86
2 RS012K10F03 RES 12K 1% SMD 0603 1 R9
2 RS01K110F03 RES 1.1K 1% SMD 0603 1 R137
2 RS01K510F03 RES 1.5K 1% SMD 0603 1 R21
2 RS022010F03 RES 220Ω1% SMD 0603 3 R16~18
2 RS027010F03 RES 270Ω1% SMD 0603 1 R66
2 RS047510F03 RES 475Ω1% SMD 0603 1 R136
2 RS080610F03 RES 806Ω1% SMD 0603 2 R74,135
2 RS100K10F03 RES 100K 1% SMD 0603 3 R37,40,110
2 RS11K810F03 RES 11.8K 1% SMD 0603 1 R63
2 RS15K810F03 RES 15.8K 1% SMD 0603 4 R60,61,75,83
2 RS1K3310F03 RES 1.33K 1% SMD 0603 1 R53
2 RS220K10F03 RES 220K 1% SMD 0603 3 R72,87,106
2 RS22K110F03 RES 22.1K 1% SMD 0603 1 R64
2 RS2K1510F03 RES 2.15K 1% SMD 0603 1 R70
2 RS2K3210F03 RES 2.32K 1% SMD 0603 1 R56
2 RS33K210F03 RES 33.2K 1% SMD 0603 1 R58
2 RS3K3210F03 RES 3.32K 1% SMD 0603 4 R76,77,95,96
2 RS42K210F03 RES 42.2K 1% SMD 0603 2 R81,84
2 RS470K10F03 RES 470K 1% SMD 0603 1 R48
2 RS47K510F03 RES 47.5K 1% SMD 0603 1 R59
2 RS4K7510F03 RES 4.75K 1% SMD 0603 2 R54,55
2 RS820K10F03 RES 820K 1% SMD 0603 1 R31
2 RS82K510F03 RES 82.5K 1% SMD 0603 1 R78
2 RS8K0610F03 RES 8.06K 1% SMD 0603 1 R41
2 TE852542001 Connector 2 J500,501
2 UH201209T-601Y BEAD 600Ω@100MHz 2A ±25% 0805 1 L3
2 UHLPF3218MF100M 10UH 1A 0.29ΩSMD 2 L1,2
2 XTM08000X6F1 Crystal 8MHZ 49US SMD Fundamental 1 X1
1 TWPC13A01301 FSR PCB Assembly 1 32
2 AL2-49-0070 Diode BAV70 4 D17~20
2 AL2-71-1324 IC LMV324 SOP-14 1 U41
2 CS103K5003X7R CCAP SMD 0.01uF/50V 10% 0603 X7R 4 C82,84,86,88
2 CS104K5003X7R CCAP SMD 0.1uF/50V 10% 0603 X7R 4 C4,12,13,80
2 CS106K1606X7R CCAP SMD 10uF/16V 10% 1206 X7R 3 C2,11,14
2 CS561J5003NPO CCAP SMD 560pF/50V 5% 0603 NPO 4 C81,83,85,87
2 FCN1T1001402 FCN DOWN Touch ZIF SMD Pitch=1.0mm 14P 1 J1
2 IC74HC595 Integrated Circuit 3 U18,24,37
2 LDJ1M1F1BB7R4S3 Liquid-emitting Diode Red/Green/Blue SMD 8 LED100~107
0603 angle 120°

2 PC13A013 FSR PCB 2-Layer FR-4 150*81MM 1 -
2 RS004710F03 RES 47Ω1% SMD 0603 2 R160,186
2 RS010K10F03 RES 10K 1% SMD 0603 4 R220,224,228,232
2 RS012K10F03 RES 12K 1% SMD 0603 4 R218,222,226,230
2 RS022110F03 RES 221Ω1% SMD 0603 16 R146,147,149,150,152,153,155,156,158,185
R188,189,191,192,194,195
2 RS043210F03 RES 432Ω1% SMD 0603 8 R145,148,151,154,157,187,190,193
2 RS047010F03 RES 470Ω1% SMD 0603 4 R219,223,227,231
2 RS04K710F03 RES 4.7K 1% SMD 0603 4 R221,225,229,233
1 TWPC13A01401 Top Right Front PCB Assembly 1 33
2 PC13A014 Top Right Front 2Layer FR-4 307*123MM 1
2 TWPC13A014A01 TOP Right Front PCB Assembly 1
3 AA822524X IC SN74HC165PW 4 U1,2,3,4
3 AA822748X Diode BAV99 1 D3
3 AL0-09-0044 Variable Resistor 8 R8,9,12,22,32,44,65,91
3 AL0-17-0470 RES Array 4X47 1/10W 0603 6 R204~209
3 AL0-17-8103 RES ARRAY 8X10K 4 R3,4,35,64
3 AL2-51-4401 Transistor 2N4401 NPN SOT-23 (Transistor 2 Q11,14
MMBT4401LT1 NPN SOT-23)
3 AL2-51-4403 Transistor 2N4403 PNP SOT-23 4 Q1,10,12,13
3 AL2-62-0004 IC 74AHC04 1 U22
3 AL2-73-4051 IC74HC4051 Single 8-Chan Mux 16P Soic 2 U9,10
3 CS102J5003NPO CCAP SMD 1nF/50V 5% 0603 NPO 3 C63,65,91
3 CS103K5003X7R CCAP SMD 0.01uF/50V 10% 0603 X7R 3 C89,92,94
3 CS104K5003X7R CCAP SMD 0.1uF/50V 10% 0603 X7R 36 C5,7,8,15~18,21,23~41,43~45,66,67,69
C90,93,95
3 CS106K1606X7R CCAP SMD 10uF/16V 10% 1206 X7R 10 C1,3,6,19,20,75~79
3 DIZDSMAJ10ASM Diode 11.5V 400W 23A 1 D21
3 ECS22616B Capacitor Electrolytic 22uF/16V B type SMD 1 C22
3 FCN1T1001402 FCN DOWN Touch ZIF SMD Pitch=1.0mm 14P 1 J3
3 FCN1T1001602 FCN Down Touch ZIF SMD Pitch=1.0mm 16P 1 J2
3 FCN1T1002602 FCN Down Touch ZIF SMD Pitch=1.0mm 26P 1 J18
3 FCN1T1003001 FCN Down Touch ZIF SMD Pitch=1.0mm 30P 1 J17
3 IC74HC595 Integrated Circuit 3 U62~64
3 LDKPT-1608CGCK Liquid-emitting Diode Green SMD 0603 1 LED22
angle 120°
3 LDKPT-1608SURCK Liquid-emitting Diode Red SMD 0603 1 LED21
angle 120°
3 LDKPT-1608SYCK Liquid-emitting Diode Yellow SMD 0603 15 LED1~8,14~20
angle 120°
3 RS000010J03 RES 0Ω5% SMD 0603 5 R11,13,94,247,248
3 RS001510F03 RES 15Ω1% SMD 0603 1 R235
3 RS004710F03 RES 47Ω1% SMD 0603 7 R1,5,7,76,77,451,452
3 RS010K10F03 RES 10K 1% SMD 0603 8 R10,234,237~240,244,246
3 RS047010F03 RES 470Ω1% SMD 0603 1 R236
3 RS068010F03 RES 680Ω1% SMD 0603 1 R241
3 RS4K7510F03 RES 4.75K 1% SMD 0603 1 R243
SWDC11B20214A8 Switch Rotatiomal 20 pulse 20mm push-on 1 E1
3 switch
3 SWEVQ11L04M Switch Tact 4.3mm 160g Horizontal DIP 27 SW0~7,SW13~31
3 TE622000201 Pin Header 90°Pitch:2.00mm Single Row 1 J13
3 2P DIP
3 TE622001603 Pin Header 90°Pitch:2.0mm Single Row 1 J19
6Pin DIP
3 UHBLM18AG102SN1 BEAD 1000Ω100MHZ 1 L7
2 TWPC13A014B01 Pitch&MOD PCB Assembly 1

3 TE612000301 Pin Header 180°Pitch:2.00mm Single Row 1 J6
3P DIP
3 VRR50202901 Potentiometer Rotary Volume:5k Shaft 1 VR1
Length 293mm Single Row
2 TWPC13A014C01 Pitch&MOD PCB Assembly 1
3 TE612000301 Pin Header 180°Pitch:2.00mm Single Row 1 J7
3P DIP
3 VRR50202901 Potentiometer Rotary Volume:5k Shaft 1 VR2
Length 293mm Single Row
3 TWPC13A014D01 Switch PCB Assembly 1
3 CN0620001508 Flat Cable Multicolored 6pin 2.0 single 1 J15
Row Length:150mm pin/Female Header
3 CS104K5003X7R CCAP SMD 0.1uF/50V 10% 0603 X7R 3 C71~73
3 FCN1T1001602 FCN Down Touch ZIF SMD Pitch=1.0mm 16P 1 J4
3 LDKPT-1608SYCK Liquid-emitting Diode Yellow SMD 0603 5 LED9~13
angle 120°
3 SWEVQ11L04M Switch Tact 4.3mm 160g Horizontal DIP 5 SW8~12
1 TWPT151064602 Wheel Assembly 1 31
2 AL9-06-0018 Spring Mod Wheel 24*24*0.2mm 1
2 AL9-06-0030 Spring Pitch Wheel φ7.0*φ0.9mm 1
2 HST010017BUL Tube (1φ17mm) 2
2 MT1304412 Bracket P/M Wheel 2
2PT151064601 PITCH/MOD WHEEL(PAINT) 2
3 PT1510646 PITCH/MOD WHEEL 2
2 WS1306505 Washer FLAT 13*6.5*0.5MM 1

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! '()-.*
!
4! 5556557'558%
! 9/9:;9((576
#! <.<(('(56<(



37(&3.&
&55.!<,.
.!7&
,&3
!
$
!5'()$55,
155%
*02!
 !
-93-.=,
..>*?..!
(%>7?!
&.!
"#$
/*....55
%!

(%>7?!
&.!

3'!
%&#
-,(6.&
!
(6.&(
!

%##
>$?!
,89,!.
&
&.$
&
!
6&..,
&%!
&!
-$,.%
&3&!
.(63'.
3&&!!3& !
'
-3.!
..89,.
.%&,,.,,.,!!


"#$
155.5556557'
!
557'
!%3
%5556!
558%.&.33
!

"(
89!
)89
;89
289
)89
5,.89
!'..89.&
!.&'5
&>?!
"&>((?!
<"&><58?!
%."
! &89' )"(!%
.89!
! 89"")"(%)*&!%
&89!
.
>((?.3/!