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Akai APC20, Service Manual

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Akai APC20 Service Manual Download Page 8

Button function test

1

As shown in the figure below, press all the button in the are which are mark by yellow box.

Figure 5: button test area

2

This 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

Summary of Contents for APC20

Page 1: ...reby 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 ATTENTION THIS DOCUMENT CONTAINS SENSITIVE PROPRIETARY INFORMATION ALL RECIPIENTS MUST HAVE A CURRENT NO...

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 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 harmles...

Page 3: ...TE 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 P...

Page 4: ...s 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 Quic...

Page 5: ...ing 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 ...

Page 6: ...art I Main Board Power Test PCBA 1 Test using multimeter to measure the voltage according to the location shown in below figure 2 If 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 ...

Page 7: ...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 5 After 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 6 After Selecting the USB device used a main test wi...

Page 8: ...gure 5 button test area 2 This 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 ...

Page 9: ...p position the current parameter are 127 and bottom is 0 4 As 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 1 There are only one encoder to be tested 2 The 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 3 Aft...

Page 10: ... and the color are correct Green LED test 1 Press the Green LED Button in the applcation by using the mouse 2 The 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 ...

Page 11: ... will all lite up in red with certain part of the other LED as shown below Figure 10 All LED on SET are on Dual LED test 1 Passing the red by click on RED pass button then the 2 color LED will both lite up as shown below Figure 11 dual color LED 2 Confirm that all same colored LED are even in color APC20 TEST PROCEDURES ...

Page 12: ...ows at the rubber keypad got light spot ok NG 3 Make sure that all LED in the indicated are on and no missing as shown below 4 After confirm that all LED have no problem press the ALL LEDs to complete the test 5 There will be a big PASS on the top right showing the set has pass all the test APC20 TEST PROCEDURES END ...

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Page 15: ...APC20 WIRING DIAGRAM FFC5005002001 CN1020001504 TWPC08A00903 TWPC09A01201 ...

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Page 18: ...51 0340 DIODE SCHOTTKY MBRA340T3 40V 3A 2 000 D1 4 2 AL2 51 4401 TRANS NPN 2N4401 40V 1A SOT 23 2 000 Q2 3 2 AL2 56 0749 Transistor FZT749 SOT 223 1 000 Q1 2 AL2 61 3463 IC REG VOLTAGE MC34063A ADJ 1 000 U3 2 AL2 61 7223 IC REG VOLTAGE NJU7223DL1 33 3 3V TO 252 1 000 U4 2 AL2 61 7885 IC UA7805 CKTTR TO 263 DR51 1 000 U1 2 AL4 21 5000 Connector 50P 0 5MM SMD ROHS 1 000 J1 2 CS102K5003X7R CHIP CAP 1...

Page 19: ...RLIGHT 40 000 D1 8 10 17 19 26 28 35 37 44 2 LDKPTC2012QBC C LED BLUE KPTC2012QBC C 0805 ROH 8 000 D71 78 2 LDLTST C190KGKT LED GREEN 3 20 0009 30 000 D9 18 27 36 45 70 2 LDLTST C190KRKT LED RED 3 20 0011 8 000 D79 86 2 PC09A012 FUNCTION PCB 2 LAYER FR 4 276 204MM 1 000 2 RS000008J05 CHIP RES 0 5 SMD 0805 15 000 R1 4 5 10 11 14 30 39 40 53 55 R59 61 2 RS000010J03 CHIP RES 0 1 SMD 0603 1 000 R2 2 R...

Page 20: ...ation 1 LAP67YAH255 LABEL RED MARKING 2 000 1 OPADA3AKA01 QUICK START MANUAL 1 000 1 PE150350400BEP PLASTIC BAG W PRINTING 0 004 1 PLADA101 ADA1 POLYFOAM LEFT 1 000 1 PLADA102 ADA1 POLYFOAM RIGHT 1 000 1 SD40035000RJP LAMIN BAG 1 000 ...

Page 21: ...R48 10K G D S Q20 A FDC6306P R45 10K R46 10K G D S Q19 A FDC6306P R43 10K R44 10K G D S Q22 B FDC6306P G D S Q21 B FDC6306P G D S Q20 B FDC6306P G D S Q19 B FDC6306P 1 2 3 4 5 6 7 8 9 10 J2 R2 0 ohm C28 0 1uF 1 OE1 2 A0 3 A1 4 A2 5 A3 6 A4 7 A5 8 A6 9 A7 10 GND 11 Y7 12 Y6 13 Y5 14 Y4 15 Y3 16 Y2 17 Y1 18 Y0 19 OE2 20 VCC U2 74AHCT541 C19 0 1uF C18 0 1uF C3 330uF 6 3V C2 22uF 16V C17 0 1uF C1 22uF...

Page 22: ...D D37 GRN RED D38 GRN RED D39 GRN RED D40 GRN RED D41 GRN RED D42 GRN RED D43 GRN RED D44 D9 GRN D18 GRN D27 GRN D36 GRN D45 GRN D62 GRN D46 GRN D47 GRN D48 GRN D49 GRN D50 GRN D51 GRN D52 GRN D53 GRN D54 GRN D55 GRN D56 GRN D57 GRN D58 GRN D59 GRN D60 GRN D61 GRN D63 GRN D64 GRN D65 GRN D66 GRN D67 GRN D68 GRN D69 GRN D70 GRN R6 5 6 ohm R41 6 8 ohm R42 6 8 ohm R52 27 ohm D79 D80 D81 D82 D83 D84 D...

Page 23: ...48 SW15 D102 1N4148 SW16 D103 1N4148 SW17 D106 1N4148 SW20 D107 1N4148 SW21 D108 1N4148 SW22 D109 1N4148 SW23 D110 1N4148 SW24 D111 1N4148 SW25 D112 1N4148 SW26 D116 1N4148 SW29 D117 1N4148 SW30 D118 1N4148 SW31 D119 1N4148 SW32 D120 1N4148 SW33 D121 1N4148 SW34 D122 1N4148 SW35 D127 1N4148 SW38 D128 1N4148 SW39 D129 1N4148 SW40 D130 1N4148 SW41 D131 1N4148 SW42 D124 1N4148 SW43 D123 1N4148 SW44 D...

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Page 33: ...0 1uF 1 VIN 2 GND 3 VOUT 4 U1 uA7805CKTTR C35 22uF 16V C31 0 1uF C32 0 1uF 1 2 3 4 5 6 SW1 1 OUT 2 IN 3 GND U4 NJU7223DL1 33 TP2 TP8 R30 0 ohm R45 0 ohm TP5 TP7 TP1 TP9 TP6 TP3 TP10 C11 1000pF C9 1000pF C3 1000pF C12 1000pF C15 1000pF C17 1000pF L1 100uH 1 2 3 4 5 6 7 8 9 10 J2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 4...

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