Akai MPC Service Manual

1 1
2 2
3 3
4 4
5 5
6 6
D D
C C B B
A A
TO REAR DIGITAL PCB
N/CN/C
MIDI OUT 1
N/CN/C
MIDI OUT 2
N/CN/C
MIDI OUT 3
N/CN/C
MIDI OUT 4
S/PDIF MONITOR ASSIGNABLE OUT MAIN OUT LINE/MIC/PHONO IN
N/CN/C
N/C
MIDI IN 1
N/C
N/CN/C
N/C
MIDI IN 2
N/C
+12VA
-12VA
+50V
N/C
Phantom
Phantom
Phantom On
SWITCH
Off
Power
PHANTOM
POWER
MOUNTINGHOLES
Locate thesemounti ng holes close to theaudio jacks
ASSY NUMBER:
123456
D C B A
C D B A
COMPANY: TITLE: PART NUMBER: FILENAME: SCALE:
RELEASED: DRAWN: DATED:
DATED:
SIZE:
SHEET: OF
33
9-79-0604-B-0
9-40-0604-B
ACVO Rear Analog PCB Akai Professional
MJS/AES
MIDI
1
2
3
4 5
6
7
8
J1
1000pF
C105
1000pF
C106
47 ohm
R107
MIDI
1
2
3
4 5
6
7
8
J14
1000pF
C107
1000pF
C108
47 ohm
R149
MIDI
1
2
3
4 5
6
7
8
J15
1000pF
C112
1000pF
C113
47 ohm
R152
MIDI
1
2
3
4 5
6
7
8
J16
1000pF
C114
1000pF
C115
47 ohm
R153
MIDI
1
2
3
4 5
6
7
8
J6
1000pF
C27
1000pF
C28
220 ohm
R27
TLP181
1 2 3
4
SEN2
MBT4401
Q5
470 ohm
R28
10K
R31
0.1uF
C29
BAV99
1
2
3
D14
0.1uF
C34
MIDI
1
2
3
4 5
6
7
8
J11
1000pF
C51
1000pF
C52
220 ohm
R37
TLP181
1 2 3
4
SEN3
MBT4401
Q6
470 ohm
R38
10K
R40
0.1uF
C55
BAV99
1
2
3
D15
0.1uF
C58
100 ohmR49
100 ohm
R50
47uF,16V
C9
DNS_0 ohm
R22
MBRA340T3
D7
220uF,35V
C99
1000uH
1 2
L5
AP1501
VIN
1
OUT
2
GND
3
FB
4
ON/OFF
5
6
U10
47.5K 1%
R115
47.5K 1%
R116
0.1uF
C124
MBRA340T3
D12
220uH
L6
MBRA340T3
D8
8.66K 1%
R124
1.00K 1%
R132
220uF,35V
C146
220uF,35V
C83
TP2
0.1uF
C79
TLP181
1 2 3
4
SEN1
470 ohm
R259
10K 1%
R260
FDC6306P
G
1
D
6
S
5
Q18A
FDC6306P
G
3
D
4
S
2
Q18B
MBT4401
Q19
4.7K
R261
10K 1%
R262
10K 1%
R263
DNS_0 ohm
R264
2200uF,16V
12
C10
TP11
1.0 ohm
R12
1.0 ohm
R43
47uF,63V
C22
330uH
2 4
L2
B1100
D5
10K 1%
R48
510K
R47
1.0 ohm
R44
LM3578A
IN-
1
IN+
2
OSC
3
4
E
5
C
6
ILIM
7
8
GND VIN
U7
1000pF
C110
2200pF
C111
18pF
C109
100K 1%
R53
FDC6306P
G
1
D
6
S
5
U8A
100uF,35V
C24
1
2
3 4
5
6
S3
10K
R30
VI-FPC05L-50
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 44 45 46 47 48 49 50
J17
TP7
TP8
FDC6306P
G
3
D
4
S
2
U8B
Z12 Z26 Z27
74HC14
12
U14A
74HC14
147
U14G
47 ohm
R148
74HC14
98
U14D
74HC14
1312
U14F
74HC14
34
U14B
74HC14
56
U14C
74HC14
1110
U14E
47 ohm
R150
47 ohm
R151
47 ohm
R154
0.1uF C131
MBRA340T3
D6
MIDI_FROM_IN1 MIDI_FROM_IN2
+3.3V
DGND DGNDDGND
+3.3V
DGND DGNDDGND
+3.3V
DGND DGNDDGND
+3.3V
DGND DGNDDGND
DAC1L-
DAC1L+
DAC1R-
DAC1R+
DAC2L-
DAC2L+
DAC2R-
DAC2R+
DAC3L-
DAC3L+
DAC3R-
DAC3R+
DGND DGNDDGND DGND DGNDDGND
+3.3V
DGND DGNDDGND DGND DGNDDGND
+3.3V
AN_POWER_EN
POWER_FAIL
DGND
+12VA
DGND
DGND
-12VA
DGND
+12VA
DGND
AN_POWER_EN
+12V
+50V
DGND
DGND
DGND
AGND
+12V
ADC1L-
ADC1L+
ADC1R-
ADC1R+
AGND
CHGND
DGND DGND
DGND
+3.3V
0 ohmR1
0 ohmR249
DNS_10K 1% R203
0 ohmR137 0 ohmR138 0 ohmR139
0 ohmR155 0 ohmR156
+12V
DGNDAGND
DGND
+5VA+3.3V-12VA+12VA
C45
DNS_4700pF
AGND
USB_ENUM
DNS_0 .1uF
12
C84
DNS_1.00k 1%
1 2
R94
2012.04.24

Akai MPC Specifications

General

Impedance	16 Ω
Driver unit	50 mm
Magnet type	Neodymium
Ear coupling	Circumaural
Headphone frequency	12 - 24000 Hz
Headphone sensitivity	114 dB
Cable length	2.1 m
Product color	Black, Red, Silver
Wearing style	Head-band
3.5 mm connector	Yes
Connectivity technology	Wired