Akai APC20 User manual
Confidential Akai Service Manual
AKAI
APC20
(ADA3)
Service Manual
Rev. 1
2010.04.14
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
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.
SPECIFICATION
FEATURES
1. Designed in partnership with Ableton, mapped for Live, and fully customizable
2. Clip Launch matrix with multicolor lighting displays current clip status
3. No mapping required; every button and fader is pre-mapped
4. Bidirectional hardware/software communication for visual feedback on APC20
5. Solid, professional feel with rugged, metal chassis and premium controls
6. Comes with Ableton Live Akai Professional APC Edition software
7. Works with Standalone editions of Ableton Live
8. USB plug-and-play connection for Mac and PC
SERVICE MANUAL
MODEL: APC20
Equipment Needed.
1x1
2x1
3x1
4x1
5x1
6x1
Setting up
1Plug in th power and USB cable to the APC20.
2Connects the usb with the PC
P
art
I
Main Board Power Test(PCBA)
1Test using multimeter to measure the voltage according to the location shown in below figure.
2If all the value tested are same after round up then the main board power test is passed.
Figure 1: Location to test voltage
USB cable
PC
MultiMeter
APC20 12V 2A adaptor
APC20 TEST PROCEDURES
APC20
Foot Switch
Part II
Functionality Test
Setting up
1Plug in the power and USB cable to the APC20.
2Connects the usb with the PC
3Press the power switch to power on the set before start the test program.
4Open the APC20 Test Application by double click or simply select using a mouse and press the
Enter button on the keyboard on the APC20 Test Program .10.exe as shown in the figure below.
Figure 2: APC20 Test Program ICON
5After the program have been loaded, it will pop up a selection window which you need to select
USB device as shown below. Select USB Audio Device for WinXP and APC40 for Win Vista
Figure 3: Selecting USB device
6After Selecting the USB device used, a main test window will show up as below.
Figure 4: Main test window
APC20 TEST PROCEDURES
Button function test
1As shown in the figure below, press all the button in the are which are mark by yellow box.
Figure 5: button test area
2This part of test is to test the button functionality and once you press the button it will on the yellow
LED and at the test application the button press will be show in green. Below is a sample of all the
button are pressed and showing green.
Figure 6: button test pass
APC20 TEST PROCEDURES
Slider test
1Slides the fader show in the incated area to test its functionality.
Figure 7: Fader test area
2For the 9 vertical fader, push it to the top then push it down to the bottom to ensure it can reach
top and bottom side. When it does, the fader will show green to pass.
3Noted that when fader are at the top position, the current parameter are 127 and bottom is 0.
4As for the one and only horizontal slider, push it to the left most with the current parameter is 0 and
to the right most with the current parameter is 127.
Encoder test
1There are only one encoder to be tested.
2The encoder are the CUE LEVEL. This VR only need to turn it clockwise 360 deg but
you just need to turn it slowly to pass it.
3After this test, the display of the test application should be as below.
Figure 8: VR pass display
APC20 TEST PROCEDURES
Part III
LED test
The main purpose of this test is to make sure all LED are ok and the color are correct.
Green LED test
1Press the Green LED? Button in the applcation by using the mouse.
2The LED on the indicated area will on. Make sure all the LED are on and the color or brightness
are even among each type of LED.
Figure 11: All LED ON.
APC20 TEST PROCEDURES
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