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Keystation 88 MK3
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.
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
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© Copyright M-Audio
Confidential
M-Audio
[MK35B]
Service Manual
v1.0
2020-08-25
ATTENTION!
M-Audio Service Manual
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Summary of Contents for M-Audio Keystation 88 MK3
- Page 1 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 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.
- Page 2 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.
- Page 3 ALL REPAIRS DONE BY ANY ENTITY OTHER THAN AN AUTHORIZED M-AUDIO SERVICE CENTER SHALL BE SOLELY THE RESPONSIBILITY OF THAT ENTITY, AND M-AUDIO SHALL HAVE NO LIABILITY TO THAT ENTITY OR TO ANY OTHER PARTY FOR ANY REPAIRS BY THAT ENTITY.
- Page 4 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 M-Audio Service Manual...
- Page 5 MIDI KEYBOARD Keystation 88 MK3 SERVICE MANUAL...
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Page 6: Table Of Contents
Contents Layout & Connection....................3 General Exploded Drawing and List....................4 Circuit Boards..........................5 Parts List............................7 PCB Boards..........................1 1 Diagnosis............................1 3 Frequently Asked Questions......................1 6 Spare Parts List..........................1 7... -
Page 7: Layout & Connection
Layout & Connection Wheel 6P Cable to Main J1 Main board J10 20PIN Cable to function board J1 Main Board CN1,CN2 20 PIN Cable to keyboard... -
Page 8: General Exploded Drawing And List
General Exploded Drawing and List... -
Page 9: Circuit Boards
Circuit Boards Main Board Schematic... - Page 10 Circuit Boards Function Board Schematic-1 Function Board Schematic...
- Page 11 ++++ 298010001 Plastic 0.00103 Kg 301110024 screw BB 3*8BB Color Zn “+” PWB 9.00000 PCS 1012401470 wheel ASSY Keystation 88 MK3(MK35B) 1.00000 SET ++++ 901990032 Hot-Melt Tape 11.2±2*300 yelLow Clarity 0.00050 Kg ++++ 3029900680 M9 T=2mm Zn alloy 2.00000 PCS...
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Page 12: Parts List
Parts List Stainless steel surface nigrescence disposal 320060001 KEY METAL PLATE O2 1.00000 PCS Thickness0.8mm ++++ 320010005 Key ironware sheet O2 Stainless steel Thickness0.8mm 1.01000 PCS +++++ 398010002 SECC 0.8mm 0.00310 Kg KS88 keyboard dedicated spring 0.7mm line 102060172 Keyboard ASSY 1.00000 SET ++++ Round rubber... - Page 13 Parts List 3Pin L=60mm 26# UL2468 Red 3Pin/2.54mm +++++ 628071217 Flat connector with cathode plug 1.00000 PCS JP3 cathode plug +++++ 901010013 Stannum of cord sotder wire (lead) Sn-0.3Ag-0.7Cuφ1.0mm FLUX;2.2% 0.00220 ROLL 631020017 Black Velvet paper 66*30*0.3mm viscosity 5.00000 PCS 301110029 screw BB 4*12BB(00683-54012) black “+”...
- Page 14 Parts List ++++++ 610030024 Taping Crystal SMD 49S 12MHz ±20PPM 20PF (HC-49S-SMD) WEJ 1.00500 PCS XT1 ++++++ 6010109650 IC SMD NUC120RD2BN/LQFP-64 NUVOTON 1.00000 PCS U2 ++++++ 601011129 IC SMD RESET IC PLD3025CTA SOT-23 1.00000 PCS U1 ++++++ 602010027 Resistor SMD 1M ohm(1/10w)+5%-5% 0603 1.01000 PCS R12 313010406...
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Page 15: Pcb Boards
PCB Boards Main Board-T O P Main Board-BO T... - Page 16 PCB Boards Function Board...
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Page 17: Diagnosis
Diagnosis Key Combination Instruction Press and hold the following key combination then power on can achieve some special functions. Press the lowest “C” + “C#” + “D” +”Eb” to enter Firmware Update Mode. Press the lowest “C” + “C#” + “D” + “E” to enter System Self-testing. System self-test function could assist QA do a comprehensive check with these functions: LEDs, MIDI OUT ports, function buttons, keyboard, pedals, USB and so on. - Page 18 Diagnosis System Self-testing Operating Instructions System self-testing consists of 3 parts: tests 1 ~ test 3. Use the following control buttons to switch between the tests. Hold down the [ADVANCE] button, then press [OCT+] to switch to the next test item. ...
- Page 19 Diagnosis Test 2: Keys Press the keys with medium playing strength, strictly in the sequence as marked with a red arrowhead in the picture below. If the currently checked key is OK, the LEDS will light green, and it will send note on/off message.
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Page 20: Frequently Asked Questions
Frequently Asked Questions Problem Possible Cause and Solution Even with no power supply problems, the Check the hardware. instrument still could not start up. LEDS -- Not lighting Check the power supply. 2. Check the AC jack, have it been connected reliably. A poor contact would cause unsuccessful power supply Button problems Run “test 3 Function Buttons”... -
Page 21: Spare Parts List
33.4*33.4*9.1MM. ABS，injection pantone Black 206010296 Black Plastic button C，non-surface treatment 16*15.7*14.8mm 101240147 wheel ASSY Keystation 88 MK3(MK35B) ABS injection Pantone process 299040018 Slider cap black C The surface of the convex silkscreen white line Flat connector with 20pin L=180mm UL2651... - Page 22 Spare Parts List Flat connector with 628072314 20芯 L=575mm 10PIN*2/2.54 cathode plug Flat connector with 628072313 20 PIN L=835 10PIN*2/2.54 cathode plug 101011843 KS88 MK3(MK35B) MAIN Main board ASSY BOARD SECC T=1.5mm 313010406 Metal bracket Size:1225*19.5*15.5mm N/A Strengthen metal 399010040 SECC 2.0mm 98*15mm N/A sheet material：EVA+felt；size：...
- Page 23 Spare Parts List 628080085 USB Cable L=1500mm±50 PVC USB cable black Software download 128*128mm 400g of copper plate 640000524 card brightness to half light print 4C Size：59*30mm 4-R3.5mm material for PC frosted thickness 641011402 label of 0.3 MM white work on black 3M（9448A）...