Power Supply Board - Roland MicroComposer MC-4 Service Notes

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MTR-100
13
m
POWER
SUPPLY BOARD
PSH66(146H068)
1
00/11
7V/PSH69(146H069) 220/240V
(pcb
052H334)
;
-^2:
]\
F
-|
V8
21
1
/Vl2v
-!
/apJ
?
'i^
^::L
!
;MT-2
FLAr;
^i^n
^
*^
4^
H
l\
11
;o
It
«
4
b
8
^0
\l
i^tt
IS
tt zt
1+
:i
n
?D ^i
M
I
V
ADJUSTMENT
Measurements must
be
done
without
disconnecting
connector
housing.
1.
Adjust
VRl
for +
5.00V.
2.
Adjust
VR2
for
+
12,00V,
3.
Confirm
RESET
Signal at
Pin
14
upon power ON.
^V
p«vtflE^
OU
\
(^
lOOV ELU
.1177
PiRN
230V
BRIT
RED
240y RED BRB
(MOTE;
MT-2
is,
9S
a
whale,
named
maker-only-repairable
component.
The
Roland
Company
will
promptly
supply the replacement or
repair
the
unit
upon
reception.
Please
do
not disassemble
the unit
In
question
as this will
void the
service
polycy,
Return complete
MT-2
with
a
tag identifying
the unit
by
using the
mode!
version
and
serial
number
of the
iVlTRlOO
in
which
it is
usad.
PT
secondary winding
ratings
17VDC@1.5A,6300^F
IN
11VDC@0.7A,
22O0jiiF EN
'T.
'%
T
18

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