Roland MicroComposer MC-4 Service Notes

JAN.13,1982
MC-4
MC-4
[SERVICE
NOTES
SPECIFICATIONS First
Edition
Memory
Capacity
MC-4A
[w/out
OM-4]
apst
3900 notes
|1
& K byte version]
MC-4E[withOM-*]
apx 12000 notes
[4«
K byte version]
"
OM^s
opt
f
oral
memory board
with interface tOr
MTR-IOO
Output 4 channels each channel h^:
CVO
[OV-ia.-^ZV. 125 steps,B3.3mV/step]
CV-2
[0
V-1
0.42 V,T 23
steps, 33.3
mW;Stepl
Cat« [off
=
0V,on^12V]
MPX
[QH
=
0V.on
=
l2V]
Ut Input cv
[OV~1043V]
Cat£
[thfeshoJd
+2,5V]
Calibration
Knob
Teir(p<i
CV
Inpyt
CV [OV-10.42V3
EdtSrnc Input [thresiiold
+2
5V]
Output I0-5V]
Total Tune Knob
(+/-
loo ctnts]
T«mpo Knob
[-50%
to
+100%)
ShiHMip
7:
CVl
+
GATE
a:
GATE REWRITE
9
TUNE
4;CV2
5:MPX
TCVI
3'
STEP TIME
3:
GATE TIME
0:
Available Mpfriory {%:
Dimensions
47^x343x1 24
mm
Weight
61kg[MC-4Al,6Jks(MC^B)
Power
30W
Hs^t$inkH2&{04BK025l
Sida panel
HSSB
[0S1
H03S'2) Psne!K74C i07aHO74Ci
Key
switch
KEH10903
(13129714)
Key iopKT3
-1
blLie,
ivory
!
12479705)
Key
:op
KT3
2 2479704)
lOKevassv KEH4A006
(13129716)
^
Switch SLE722-18P (131391321
"
TCS0
2EO'1-'3 {13429608)
HU-102-]-^
!1
34492201
FCM-7CI4Q034 AU/L {13439173)
COMTROL BOARD 0PH141
t149Hl4T)
JACK
eOARD
0PH142
!149H142)
&idB panal
H37B (0S1H037-2)
Covar
HB2B {O65H0S2B1
Jack
HSJ0779-01^1Cl (13449406MI
^NECTOR BOARD 0PH144
[149H144)
iWER SUPPLY PSHS6
(100V)
(146H066}
RAM BOARD
0PH143 {149H143)
Pot
EVHLWAD25B14
(13219312}
^Switch SUE
623-TSP I13T39135)
Pot
VR1CIRS20A15 (13219601)
Knob K
-34
Type
(M)
(2247540600)
CPU
BOARD OPH
140 (149H140)
CHASSIS Hi 12
(061
HI
12)
PAMEL OPENABLE SCREWS
SELF TAPPING
3
n
6mrr>
BINDING ai Br
SwfTChSLE522'18P
{13139136)
IS
Roland
Printed in
Japan
1-2