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Akai MPK Road 88 Service Manual
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Akai MPK Road 88 Service Manual

Akai MPK Road 88 Service Manual

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Akai Professional
MPK Road 88
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.
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 support@akaipro.com.
© Copyright Akai Professional
Confidential
[ADP1]
Service Manual
v1.0
2019-03-14
ATTENTION!
Akai Professional Service Manual

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Summary of Contents for Akai MPK Road 88

  • Page 1 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.
  • Page 2 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 Professional does not give you the right to copy the Manual, and you agree not to copy the Manual without the written authorization of Akai Professional.
  • Page 3 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 PROFESSIONAL SERVICE CENTER WILL VOID THE AKAI PROFESSIONAL WARRANTY.

  • Page 4: Safety Instructions

    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 Professional Service Manual...

  • Page 5: Specifications

    SERVICE MANUAL MODEL: MPKRoad 88 SPECIFICATIONS Connectors (2) 5 pin MIDI DIN connectors (2) 1/4" (6.35 mm) TRS Expression pedal jacks (continuous) (1) 1/4" TRS sustain pedal jack (continuous) (2) 1/4" TRS Main Outputs (2) 1/4" Aux Outputs (1) USB 2.0 Type-B port (1) Power adapter input Power Via USB or power adapter (6V DC, 1A, center-positive) sold separately...

  • Page 6: Disassemble The Top Cover

    DISASSEMBLY PROCEDURES DISASSEMBLE THE TOP COVER. (A) REMOVE THE TOP COVER. (Fig1) DISASSEMBLE THE HP PCB ASS’Y AND WHEEL ASS’Y. (A)REMOVE 2 PCS SCREW FROM THE PITCH AND MOD HOUSING. (B)REMOVE 3 PCS SCREW FROM THE HP PCB HOLDER. (C)REMOVE 4 PCS SCREW FROM THE WHEEL ASS’Y. (D)REMOVE 4 PCS SCREW FROM THE PITCH AND MOD HOUSING HOLDER.
  • Page 7 DISASSEMBLE THE MAIN PCB ASS’Y. (A)REMOVE 4 PCS SCREW FROM THE BOTTOM REAR. (B)REMOVE 6 PCS SCREW FROM THE BOTTOM REAR. (C)REMOVE 1 PC KNOB, 1 PC NUT AND 1PC WASHER FROM THE TOP PANEL. (C)REMOVE 7 PCS SCREW FROM THE MAIN PCB ASS’Y. (Fig3) DISASSEMBLE THE RP PCB ASS’Y.
  • Page 8 DISASSEMBLE THE AF ADAPTOR PCB ASS’Y. (A)REMOVE 2 PCS SCREW FROM THE AF ADAPTOR PCB ASS’Y. (Fig5) DISASSEMBLE THE 88 KEY BOARD. (A)REMOVE 17 PCS SCREW FROM THE 88 KEY BOARD. (B)REMOVE 3 PCS SCREW AND 3 PCS WASHER FROM THE 88 KEY BOARD. (Fig6)
  • Page 9 DISASSEMBLE THE KEY BED CAP AND KEY BED CAP HOUSING. (A)REMOVE 1 PC SCREW FROM THE KEY BED CAP. (B)REMOVE 4 PC SCREWS FROM THE KEY BED CAP HOUSING. (Fig8)

  • Page 10: Wiring Diagram

    WIRING DIAGRAM (US/EU/UK/JIS/AUS NZ)

  • Page 11: Packing Diagram

    PACKING DIAGRAM (US/EU/UK/JIS/AUS NZ)

  • Page 12: Explode Diagram

    EXPLODE DIAGRAM (US/EU/UK/JIS/AUS NZ) EQUENCIAL NO EXPLODE DIAGRAM WILL BE MARKED ON REF.COLUMM OF BOM LIST...
  • Page 13 AL7-51-1301-G Safety Manual AL7-91-1002 Gel Silica CB313S053 Separate Wall CB513N121 Separate Wall CGADP1D515AKA02 Gift Box CTADP1D515AKA02 Shipping Carton GEAKA33 AKAI Software Download Card OPADP1AKA01 Operation Manual PUADP1D01 Foam(MID) PUADP1D02 Foam(LEFT,RIGHT) SD16501150 Soft Sheet SD1650330 Soft Sheet SD45015000 Soft Sheet PT15044123...
  • Page 14 PT1504412701 Key Bed Cap PT15044127 Key Bed Cap PT15106301 Button(B;clear) PT153006801 Pitch Mod housing(Printing-painting) PT1530068 Pitch_Mod housing RU1504414 Rear Plug RU1504417 Rubber Pad RU1504419 Rubber Mat SC0306RINI Screw M3X6 PPN SC0308RBNI Screw M3X8 PRN Tapping SC0410BIBI Screw M4*8MM PBB SC0419PW12BBI Screw M4x19 φ12PPWB W/Washer Tapping SC0420PW11IBI Screw M4x20 PPWB...
  • Page 15 ECS10716D Capacitor Electrolytic 100uF/16V D type EC2,EC8,EC13,EC14 ECS22616B Capacitor Electrolytic 22uF/16V B type 14 EC4,EC7,EC9~EC12,EC15,EC18~EC24 ECS47525B Ecap 4.7uF/25V 4*5.4mm SMD EC26 ECS47635DLE ECAP 47UF/35V 6.3X5.7mm SMD-D Low ESR FCN1T0504002 FCN Up Touch ZIF SMD Pitch=0.5mm 40P FCN1T1003001 FCN Down Touch ZIF SMD Pitch=1.0mm 30P ICLP2985-40DBV IC LP2985-40DBV SOT23-5 ICNJM2387...
  • Page 16 Pin SMD TE682000602 Pin Header 90° Pitch:2.0mm Single Row 6Pin SMD TR2SD2704 TRANSISTOR 2SD2704 SOT-23 Q9,Q10 TRDMP3099L MOSFET DMP3099L P-CHAN 30V 3.8A SOT-23 UH100505T-601Y BEAD 600 @100MHz 300mA 25% SMD 0402 L1,L2,L3,L7,L17,L19 UHACM2012900-2P Chock 90 0.4A 2.0X1.2mm UHBLM15HG102SN1 BEAD 1000 100MHz 0402 12 L4~L6,L8~L16 VRR10302519 Potentiometer Rotary 10K 15A Shaft...
  • Page 17 ECS22616B Capacitor Electrolytic 22uF/16V B type EC13,EC19,EC24,EC30 FCN1T0504001 FCN Down Touch ZIF SMD Pitch=0.5mm 40 FCN1 ICLM393DR IC OPA LM393DR SOIC-8 ICUSBLC62SC6 IC USBLC62SC6 SOT-23-6L JK6K6J61ACF6Y 6.3φ Stereo JACK 6P 90° DIP Female Metal NUT/WASHER JK6K6J81ACF12 6.3φ Stero JACK 12Pin 90° DIP Female J9,J13,J14 Metal NUT/WASHER JKDJ-0702B-020...
  • Page 18 TWSWRA19-20101 POWER SWITCH ASS'Y CN0220001001 Flat Cable Multicolored 2P Pitch 2.0mm Dual Row Length 100mm Line/Female SWR19A-2 Power Switch UHKCF-80-B Core KCF-80-B 20.5*20*7.5 WR1130032G1 ISOLATION CABLE 3P PITCH:2.0MM DUAL ROW LENGTH 300MM FEMALE/FEMALE HOUSING WRUSB05200025W2 Isolation Cable USB2.0 5Pin Single Row Pitch 2.0mm Length 250mm...
  • Page 19 ADP1 Test App Procedure V1.5 Setting for the cables  Setting for MIDI Test/installation  Setting for MIDI Test/operation ...
  • Page 20 ■ Setting for the cables 1.1*ADP1 2.1*PC and 1*USB Cable(B Type) 3.1*MIDI Cable 4.1*Sustain Pedal 5.2*Expression Pedal 6.1*Bar Code Scanner 7.Setting cables as below...
  • Page 21 Setting for MIDI Test/Installation ■ Please prepare “ADP1-MDPL (3.?.?.??)V0.3.exe” (depend on the latest firmware). Please copy the data to your hard driver and start the files. For example, V0.3.exe is the latest version. Run with this version...
  • Page 22 ■ Setting for MIDI Test/Operation Note: ”SPLIT” button， power on the PC， access to the test app 。 At this moment, 6 1. Press will lite up (orange) 2. During the testing, Red: Not yet start testing； Yellow 、 Green: in the test process； Blue: Pass。...
  • Page 23 STEP 3 If see red light, the software might not connect to unit. Please check the USB cable from the unit connect to PC or not Besides, please make sure the unit is power on. STEP 4 If green light, it connected to the PC and firmware version。 E.G：if the firmware is 20 version, it will show below...
  • Page 24 STEP 5 Whether you see the below picture? If so, you can start testing the unit.
  • Page 25 STEP 6 – Button Test Red button: not yet started testing Green button: already pressed the button Blue button: already released the button and finish the test STEP 7 – Slider(VR)/Aftertouch Test When test AfterTouch, please Red Silder ：Not yet started testing pressfollowing black/white keys：...
  • Page 26 STEP 8 – MIDI Jack Port IN/OUT Test Please press 3 black keys on the right side at the same time You will see MIDI jack in/out as below picture. Or you can turn on Sustain 3 sec, you can see MIDI Jack appears 3 times ON/OFF test STEP 9 –...
  • Page 27 STEP 10 – LED Test Once press each button, LED will lite up and off. Please test all LED test to see the function correctly or not STEP 11 – Serial number Test (1) Please select the“serial Number” button (2) Please go to S/N bare (3) Please use Bar Code Scanner.
  • Page 28 You will see 2 numbers in the bars. See the version on the unit： Please follow below procedure to see the version. Please press “Preset Down” button and then power on to access the test app mode. After that, you can see MCU version – 02-19 如下圖示例子:...
  • Page 29 In the test app mode, if press “Preset Down” button, it will show 19 (Low Byte). However if press “Trans” button at the same time, it will show 02 (High Byte). Once combine 2 numbers, it is “02-19”. This is the version.
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  • Page 47 3.32K 3.32K § © ¨ § ¦ ¥ ¤ ¨ 4.75K 1.33K £ ¢ ¥ ¡ ¢ 3.32K 3.32K...
  • Page 49 R131 3.3K 1% R130 3.3K 1% 100pF R129 3.3K 1% 100pF R128 3.3K 1% 100pF R127 3.3K 1% 100pF R126 3.3K 1% 100pF R125 3.3K 1% 100pF R124 3.3K 1% 100pF R123 3.3K 1% 100pF R122 3.3K 1% 100pF R121 3.3K 1% 100pF R120...
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