Roland TR-808 Service Notes

JUN.
15,1981 TR-808
TR-808
[SERVICE
NOTES
SPECIFICATIONS
Rhythm
storage capacity 1-32 steps/measure
64
measures x 12 tracks
Tempo
variable
range
4M =40-300
Master output
Hi
6V
p-p/1 Kfi;
Lo 0.6V p-p/3Ki7
(Level: Voices
@
red mark;
AC @
FCW)
Multi
output
1
Kfi
Trigger
output +15V, 20ms;
IK^ -CB/CP(MA)/AC-
Accent
level
OdB-lOdB
Power consumption
8W
Dimensions
508 (w) x
305
(d)
x 110
(h)
mm
Net weight 5kg
CAUTION
Although some
parts are designated in abridged
number
or
numberless
in this limited space,
they
are
fully
numbered on
the Parts
List.
Parts
order must be written
in full
number
followed by the part
name
to encourage prompt,
accurate
dispatch.
TOP PANEL REMOVAL
SCREWS:
(T)
-
DUST
COVER
N-102
SWITCH SQPR24-12P
First
Edition
Second
Printing (July 12, 1983
E2)
KNOB
N-128
SWITCH SRM-IOIC
BUTTON
N-506
BLACK
ill
PANEL
N-242
SIDE PANEL
N-118
(L)
i^-y-
KNOB
N-128
^
SWITCH SRM1026
(T) -(g) 3 X 10
mm
B1, Fe, Br, Biding, Self tapping
(5)
-(7)3x6
mm
Fe,
Br Binding
FLEXIBLE PCB
N-166
SHIELD
COVER
N-162
BOSS
NUT
N-524 3 x
8mm
HOLDER
N-247
SWITCH
BOARD
ASS'Y 0P31
16-090
MAIN BOARD ASS'Y 0P31 16-130
|B
B|M[iMB|
s
H^^^^Hb
voicing
BOARD
ASS'Y VG31 16-140
^»
fef
^9h
HOLDER
N-246
SWITCH
SDG5P001 100V
SDG5P001 117V
SDG5P502 220V 240V
POWER TRANSFORMER
N-217N 100V
N-218C 117V
N-219D 220V 240V
LONG NUT
N-503 3 x
18mm
TERMINAL
N-101 TT501
D-1
2P
POT EVH-LWAD25B55 500KB
TOP PANEL REMOVAL SCREWS
1
through 10
Roland
(3rd Printing June 1986
C-2) Printed
in
Japan
AE2
1
JACK
BOARD
(A)
ASS'Y 0P31 16-100
fc«'.WJS
JACK BOARD
(B)
ASS'Y OP3116-110
HOLDER
N-248
^^
BATTERY HOLDER
N-525
POWER
SUPPLY
BOARD
ASS'Y
0P31 16-051 100V/117V
0P31
16-054
220V/240V
LONG NUT
N-501
3x 10mm
CHASSIS N-234
RUBBER FOOT
0-7(111-023) COIN SCREW
3x8mm
lilHMHiliHHl
RUBBER FOOT
G-5 (111-021)
BATTERY COVER
N-159
CUSHION
N-310
SCREWS
(8)
- (@
3 X 6
mm
B1, Fe, Br Binding,
Self
tapping
SCREWS
@-@
3x10
mm
B1,
Fe,
Br Binding, Self tapping
JACK SG7622 #8(13449106)
8)
(^
DIN CONNECTOR TCS0250-01
-03 (13429604)
SWITCH
SSF22-07 (13159112)