Akai MPC Service Manual

ASSY NUMBER:
123456
D C B A
C D B A
COMPANY: TITLE: PART NUMBER: FILENAME: SCALE:
RELEASED: DRAWN: DATED:
DATED:
SIZE:
SHEET: OF
31
C
9-79-0603-C-0
9-40-0603-C
ACV0 REAR DIGITAL PCB
AKAI PROFESSIONAL
MJS
4/24/2012
ACV0RDC01B.sch
ASSY NUMBER:
123456
D C B A
C D B A
COMPANY: TITLE: PART NUMBER: FILENAME: SCALE:
RELEASED: DRAWN: DATED:
DATED:
SIZE:
SHEET: OF
31
C
9-79-0603-C-0
9-40-0603-C
ACV0 REAR DIGITAL PCB
AKAI PROFESSIONAL
MJS
4/24/2012
ACV0RDC01B.sch
12VDC @ 2A
On/Off
NC NC
DC POWER IN
+12V
New Part - This Type But 33 uH, 3.40 Amp
Single Point GND to AGND Connection
+3.3V
New Part - This Type But 33 uH, 3.40 Amp
2.5V reference
2.68V threshold (11.6V input)
POWER FAIL DETECT
+12 V < 10.8 V
+5VD +5VA
Copyright 2011 - Akai Professional
1
FB
2
EN
3
OCSET
4
VCC
5
OUTPUT
6
7
VSS
8
U10
AP1510SL-13
D8
MBRA340T3
L10
SDRH12565-150M
R78 6.81K 1% R80 1.30k 1%
R88
3.01k 1%
C84 1000pF
R87
100k 1%
TP13
C86
1000pF
C96
470uF,25V
C34
470uF,25V
C89
0.1uF
C91
0.1uF
C85
0.1uF
1
2 3
J5
P6
1
2
3 4
5
6
SW1
SPUN19C606-YN
1
4
3 2
L3
D4
MBRA340T3
TP4
C16
0.1uF
C5
0.1uF
1
FB
2
EN
3
OCSET
4
VCC
5
OUTPUT
6
7
VSS
8
U7
AP1510SL-13
D5
MBRA340T3
L9
SDRH12565-150M
R31 4.02K 1% R36 1.30k 1%
R48
3.01k 1%
C45 1000pF
R41
100k 1%
C54
1000pF
C68
470uF,25V
C64 0.1uF
C33
0.1uF
C53
0.1uF
TP5
R18 3.01k 1%
R12
10k 1%
R6 16.9k 1%
R19 10k 1%
U1
LM431ACM3
5
+
6
-
7
U2-B
LM393
-v
+v
8 4
U2-C
LM393
L8
60OHM@100MHz
C44
47uF, 6.3V
C43
0.1uF
TP6
3
+
2
-
1
U2-A
LM393
R1
0 ohm
R50 ohm
TP1
C19 0.1uF
C6
0.1uF
TP2
D9 16V
+3.3V
DGND
+12VA
POWER_FAIL
DGND
+12VA
DGND
DGND
AGND
CHGND
+5VD +5VA
+12V
DGND

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