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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. 

Summary of Contents for MAX25

Page 1: ...by 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...

Page 2: ...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...

Page 3: ...E 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 A...

Page 4: ...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 o...

Page 5: ...indicators 4 banks Switches 4 LED backlit 4 banks Inputs Outputs 1 USB port 1 1 4 TRS expression pedal input 2 1 4 TS footswitch inputs 1 1 4 TS Gate output 1 1 4 TS CV output 1 5 pin MIDI in 1 5 pin...

Page 6: ...cation DISASSEMBLY PROCEDURES 1 DISASSEMBLE THE CABINET AND TOP PANEL Fig 1 A REMOVE 13 SCREWS FROM BOTTOM PANEL B C REMOVE 2 CABLES Fig 1 2 DISASSEMBLE THE MAIN PCB ASS Y Fig 2 A REMOVE 1 KNOB B REMO...

Page 7: ...SSEMBLE THE TOP PANEL PCB 66 LJ 3 A REMOVE 22 SCREWS Fig 3 4 DISASSEMBLE THE LCM 66 MOD PCB AND PITCH PCB Fig 4 A REMOVE 8 SCREWS B REMOVE 2 WHEELS C REMOVE 1 WASHER D REMOVE 1 SPRING E REMOVE 2 NUTS...

Page 8: ...WIRING DIAGRAM US EU UK JIS AUS NZ SEQUENCE NO OF EXPLODE DIAGRAM WILL BE MARKED ON REF COLUMN OF BOM LIST...

Page 9: ...PACKING DIAGRAM US EU UK JIS NZ...

Page 10: ...PACKING DIAGRAM AUS...

Page 11: ...EXPLODE DIAGRAM US EU UK AUS JIS NZ...

Page 12: ...A11 Packing Assembly 1 2 AL7 51 0226 M SAFETY MANUAL 1 2 AL7 51 0393A Instruction book 1 2 CB310N100 Separate Wall 1 2 CGAD38310AKA11 Inner Box 1 2 CTAD38513AKA11 Shipping Carton 0 5 2 GEAKA06 Ableton...

Page 13: ...1 10W 0603 14 RP1 14 2 AL0 17 0103 RES Array 4X10K 1 10W 0603 3 RP15 17 2 AL1 70 2102 Solid Tantalum Electrolytic 2 C3 4 Capacitors10uF 10V 20 A SMD 2 AL2 51 0140 Schottky Barrier Rectifiers Diode 3...

Page 14: ...S01K510F03 RES 1 5K 1 SMD 0603 1 R114 2 RS022010F03 5 6 60 3 R82 84 2 RS04K710F03 RES 4 7K 1 SMD 0603 1 R23 2 RS080610F03 5 6 60 1 R60 2 RS100K10F03 RES 100K 1 SMD 0603 4 R66 102 106 109 2 RS11K810F03...

Page 15: ...51 54 55 3 IC74LVC574APWR IC SN74LVC574APW TSSOP 20 21 U1 3 12 23 36 37 39 42 43 46 48 3 ICAP1501K5L ICAP1501K5L T0263 5L 1 U9 3 LD 19 22SURSYGC LIQUID EMITTING DIODE RED GREEN 4 D11 14 ASTIGMATISM SM...

Page 16: ...y 1 3 TE622000302 Pin Header 90 Pitch 2 00mm Single Row 1 J6 3P DIP 3 VRR50202901 Potentiometer Rotary Volume 5k Shaft 1 VR1 Length 293mm Single Row 2 TWPC12A017C01 MOD PCB Assembly 1 3 TE622000302 Pi...

Page 17: ......

Page 18: ...0 1 1 12 1 1 3 1 1 4 5 6 6 76 132 8 8 12 8 6 0 9 1 9 61613 0 0 0 0 1 0 0 0 1 0 3 0 1 1 8 3 0 1 1 1 1 1...

Page 19: ...6 0 3 1 1 3...

Page 20: ...3 0...

Page 21: ...9 46 2 0 2 0 0 9 0 0 46 9 9...

Page 22: ...1 1 1 1 12 1 1 3 1 1 3 0 1 1 12 1 1 4 0 0...

Page 23: ...46 46 46 8 46 8 46 8 46 8 5 46 1 46 46 1 46 A 8 3 46...

Page 24: ...1 4 4 A 8 3 4...

Page 25: ...1 3 0...

Page 26: ...1 46...

Page 27: ...1...

Page 28: ...8 1 6 8...

Page 29: ...0 0 46 46 0...

Page 30: ...7 6...

Page 31: ...0 1 0 2 2 7 7 0 1 0...

Page 32: ...Connect To RightPannelBoard KEY37 61 HEAD8X2 KEY88 HEAD10X2 Select the CLK Source MainBoard_Part_MCU Connect To RightPannelBoard 2 54mm Near to the MCU Pin...

Page 33: ...MainBoard_Part_Analog EXPRESSION AFTERTOUCH FOOTSWITCH1 FOOTSWITCH2...

Page 34: ...CV GATE MainBoard_Part_Power...

Page 35: ...be detailed after layout A K N C W1 W2 W3 W4 B4 B3 B2 B1 T1234 N C N C Do Not Stuff Vdd Vss VO RS R W DB0 E DB1 DB2 DB3 DB5 DB4 DB6 DB7 Vee NC N C Do Not Stuff Do Not Stuff POTS FROM PITCH MOD WHEEL I...

Page 36: ...N FADERMODE3 CURSOR LEFT CURSOR RIGHT CURSOR DOWN CURSOR UP GLOBAL PROG CHANGE PROGRAM EDIT Encoder ENCODER Do Not Stuff REC STOP TEMPO SHIFT FOOTSWITCH1 FOOTSWITCH2 SOFTKEY3 SOFTKEY4 SOFTKEY2 SOFTKEY...

Page 37: ...ANK C PAD BANK D PAD BANK B PAD BANK A N C N C Button LEDs nominally 14mA Indicator LED set for 6mA OCT OCT TEMPO FULL L EVEL ARP EGGIATOR SEQUENCER NOTE REP EAT SEQ ARP ON OFF SEQ ARP LATCH VLED V LE...

Page 38: ...mA PAD 1 PAD 2 PAD 3 PAD 4 PAD 5 PAD 6 PAD 7 PAD 8 PADS 2X4 PAD6 PAD7 PAD8 PAD2 PAD3 PAD4 PAD5 PAD1 PADS 20130329 SchDoc ASSY NUMBER REVISION RECORD APPROVED ECO NO LTR DATE 1 2 3 4 5 6 D C B A C D B...

Page 39: ...130329 SchDoc N C N C N C N C N C N C C OF SHEET SIZE REV DATED DATED DRAWN RELEASED SCAL E FILENAME PART NUMBER TITLE COMPANY A B D C A B C D 6 5 4 3 2 1 DATE LTR ECO NO APPROVED REVISION RECORD ASSY...

Page 40: ...R3_LED9 FADER3_LED10 FADER3_LED11 FADER3_LED12 FADER3_LED13 FADER3_LED14 FADER3_LED15 FADER3_LED16 FADER3_LED17 FADER3_LED18 FADER3_LED19 FADER3_LED20 FADER4_LED1 FADER3_LED21 FADER3_LED22 FADER3_LED2...

Page 41: ...29 Softkey LEDs 7 7 SOFTKEY_LEDS 20130329 SchDoc AKAI C OF SHEET SIZE REV DATED DATED DRAWN RELEASED SCAL E FILENAME PART NUMBER TITLE COMPANY A B D C A B C D 6 5 4 3 2 1 DATE LTR ECO NO APPROVED REV...

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