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)

Roland TR-808 Specifications

General

Type	Analog Drum Machine
Release Year	1980
Sound Generation	Analog Synthesis
Number of Sounds	16
Sequencer	Yes
MIDI	No
Memory	32 Patterns
Number of Tracks	1
Tempo Range	40-240 BPM
Outputs	Individual Outputs for Each Sound
Controls	Volume
Power Supply	AC Adaptor
Inputs	External trigger input