Roland TB-303 Service Notes

Feb.19,1982
TB-303 SERVICE
mm
SPECIFICATIONS
TB-303
First
Edition
PATTERN
MEMORY CAPACITY
64: 8
{PATTERN) x 2 (PATT.
SECTION)
x
4
(PATT.
GROUP
I Tt, lit,
IV)
Contents: Pitch,
Value,
Accent, Slide
WIINIMUW STEP
^
'
t
M /TTi
i
-
*
z.-i/
STEPs/ measofe
j-
1
to
16 steps
{2,
3
or
4 meier)
* Uo
15 stepiS {2, 3,
4
or
5 meter]
Scale
3 octaves
{PATTERN)
w/TRANSPOSE
4 Octaves
(TRACK) w/Kev
shift
TRACK
MEMORY CAPACITY
64
measures/TRACK Total
256 measures (64 x 1
tracks)
Ctmti'rus:
Older.
TRANSPOSE. D
C ^
TUNING
Control:
approx
t700 cents (perfect
fitih)
TEMPO Control:
[
J
-
40
to
300)
CONNECTIONS
Output: Impedance lOkft
HeedphoTie:
I
mpedance
to
30fl
Gate Out:
OFF
:
OV;
ON: +12V
CV
Out: +1
V
to
+6V
(1
voit/oct)
SYNC
In:
DIN
conr\eclor
MIX
In:
Impedarvce lOOkfl
Gam:
Urtity
POWER
6V:
1
6V
battery x 4
9V:
AC
adaptor
80mA
to
120mA
Dimensions: 300(W| x 146(0) x
55(H)
mm
Weight: 1.0 kg
READ
''PRELIMINARY DIAGNOSIS"
ON PAGE
7
BEFORE STARTING
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Nov.
1984
E-2
Printed in
Japan
AH-2
1
SCREWS
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3
X
10mm
Bi
,
Fe.
Binding, Seif tapping
SCREWS
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18mm
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.
Fe, Ni,
Binding, Self tapping
BOTTOM CASE
REMOVAL SCREVVS: (J-®
J«±kHLJO30«O1 4)10113449217]