Roland MC-50 Service Notes

Jun,
1990
MC-50
ISERVICE
NOTESI
MICRO COMPOSER
First Edition
SPECIFICATIONS/tirfU
Disk
Drive
-r
't
7^0
•
if
Memory
Capacity
ISISSS
'
'
Dispiay
MIDi
START/STOP
PUNCH
iN/OUT
METRONOME
OUTPUT
TAPE SYNC
iN
Power
Consumption
Dimensions
(including
projections)
Weight
fiS
3.5inch
2DD Micro
Floppy
Disk
Accesories
(RAM)
256Kbytes
(Disk)
720Kbytes
2line,
20character
(with
backlight)
IN,
THRU,
OUT1,
OUT2
OFF-OV,
ON-5V
OFF-OV,
ON-5V
VR max
0.8Vp_p/1.2KQ
Level
—20
to
OdBv
(0dBv=0.775Vrms)
Impedance
59KQ
Options
Level
0.7Vp_p
(-10±3dBv,
@50KQIoaded)
Impedance
820 Q
800mA/9V
280(W)X271(D)X47(H)mm
11"X
10-5/8"
X1-7/8"inch
1.8kg/4lb.
•••
MF-2DD (Part No.
22405126)
MIDI CableX2
(Part
No. 23485228)
AAC Adaptor
ACM
00
(Part No. 12449603)
ACM
20
(Part No.
12449604)
ACI-220
(Part No. 12449605)
ACB-240E
(Part No.
12449564)
ACB-240A
(Part No.
12449549)
Owner's
Manual
Set
Japanese
(Part No. 26045109)
English
(Part No.
26045110)
•••
Pedal
Switch
DP-2
Software
MRD-500
MRB-500
MRP-500
SUPER-MRC
Top Case
-
(22015981)
Display
Cover
(22045247)
LCD Unit
EA-D20225PX-1
(15029494)
LED
Cover
(22025792)
X
15pcs
Keytop-SM
(black)
—
(22495242)
X
29pcs
Keytop-M
(black)
—
(22495180)
X 8pcs
Knob
a
-DIAL
(22485106)
Rotary
Encoder
EC16B40B
(13279989)
Disk
Drive
Unit
JU-253A3M
(12409132)
[^Roland
Printed
in
Japan BA-2 (CR)
TABLE
OF
CONTENTS
SPECIFICATIONS
EXPLODED
VIEW
PARTS LIST
BLOCK
DIAGRAM
1C
DATA
TEST
PROGRAM
CHANGE
INFORMATION
IDENTIFYING
VERSION
NUMBER
MAIN
BOARD
PANEL
BOARD
ENCODER
BOARD
Page
i±m
1
'mm
2
/\°-'yUXh
3
z^'nyCfm
4
ICx-^
5
6—8
9
/'V—
V 3
—
9
10
K
10
x>zi
- K
10
CIRCUIT
DIAGRAM
11
(MAIN
BOARD,
PANEL
BOARD,
ENCODER
BOARD) (X
K,
K,
X>=l-^'--/f-
K)
Jack MIDI
Socket
Jack Pin
Jack
HEC-2305-01-250
M-S2-3P
YKB21-5018 YKC21-0219
(dual)
Button
Jack
Chassis
(22815750)
(12499175)
YKB21-5012
(13449146)
X 2pcs
Copyright
©
1990 by
ROLAND
CORPORATION

Roland MC-50 Specifications

General

Brand	Roland
Model	MC-50
Category	Recording Equipment
Language	English