Roland SH-2 Service Notes

OCT.15,1979(First Printing) FEB.
3,
1984 (Second Printing) SH-2
SH-2
SERVICE
NOTES
When ordering
PCBs,
suffix letter
to
PCB name referring to the
Parts
List and PCB layout.
•
SPECIFICATIONS
•KEYBOARD
37 keys, 3 octaves
•vco
AUTO BEND
MOD
(modulation depth)
PULSE WIDTH
(50%
-
MIN)
PWM
MODE SWITCH
(ENV/MAN/LFO)
TOTAL TUNE
VCO-1
RANGE
(32', 16',
8', 4', 2')
WAVEFORM
(Ay
,
A
,.ru
,
ru
)
BENDER ON/OFF SWITCH
VCO-2
RANGE
(32', 16',
8', 4', 2')
WAVEFORM
(NOISE,
A
,
ru
,
'n_j
>
VCO-2 TUNE
TUNE RANGE (WIDE/NARROW)
•AUDIO MIXER
VCO-1 SUB
VCO-1
VCO-2
•VCF
CUTOFF FREQUENCY
(10Hz
-
20kHz)
RESONANCE
(0 - self
oscillation)
ENVELOPE SWITCH
(ENV FOL'R,
ENV
-^
,
ENV
V,-
)
ENVELOPE
CONTROL
MODULATION CONTROL
KYBDCV CONTROL
•VCA
MODULATION SWITCH
KYBDGATE
JT
)
HOLD,
ENV
a-v
Knob No. 57
(016-057)
Button
No.
8
(016-008)
grey
Endblock H22
removal screws
Tap-tight B
(self tapping)
Br BH
•ENVELOPE GENERATOR
ATTACK
TIME (1ms
-2.5s)
DECAY
TIME (2ms
-10s)
SUSTAIN LEVEL (0-100%)
RELEASE TIME
(2ms -10s)
GATE SELECTOR SWITCH
(GATE-TRIG/GATE/LFO)
•MODULATOR
(LFO)
MODE (RANDOM/
OJ
/
r\j
RATE
(0.2Hz -25Hz)
DELAY TIME
(0-
1.5s)
LED INDICATOR
Panel removal screws
Tap-tight B (self tapping)
3
x
10mm Br BH
•POWER SWITCH
(with
LED
indicator)
•VOLUME CONTROL
•PORTAMENTO
(0 5s)
•BENDER LEVER
•INPUTS/OUTPUTS
OUTPUT
jack (-10dBm)
HEADPHONEjack
(stereo,
80
)
CV
INPUT
jack
(1V/oct)
GATE
INPUT
JACK
(
+ 7.5V min)
CV OUTPUT
jack
(W/oct)
GATE OUTPUT
jack
(OFF=0V;ON=
14V)
EXT AUDIO
IN jack (0.5V
p-p,
max)
•POWER CONSUMPTION:
11W
•DIMENSIONS:670(w)x305(d)x100(h)mm
•WEIGHT:
6.9kg
•ACCESSORIES
:
2.5m patch cord
OPH62
0PH61 OPH63
OPH64
Knob No. 33
(016-033)
0PH43
Power transformer
H20C
100/117V
(022H0200) or
H20J
100V only
H20C-B
117V only
H20D 220/240V
(022H020D)
End block (panel)
H22 (066H022)
Bender unit
PB-4 (029-022)
OPH65
03
F4
Holder H73
(064H073)
PSH-31/32/33
EndBlock
H21
(R/L set)
(066H021)
Power switch
SDG5P 001-1 100V
(001-215)
SDG5P 001-2
117V
(001-216)
SDGr5P 502 220/240V
Keyboard
SKL32-H
(004-013)
Jacks
S-G7622 #08
(009-012)
Panel H48
(072H048)
4
x 8mm Br
BH
(keyboard)
(rear
3
x 6mm)
(front
3
x 10mm)
Endblock removal
screws(5pcs)
Tap-tight
B(self tapping)
Chassis H79
3
x 10
Br BH
(061H079)
Jack washer
(
red
)
(121-018)
Jack S-G7713#08
stereo
(009-036)
Rubber Feet
G-5 (111-021)
rear
G-7 (111-023)
front
Roland
Printed
in
Japan
B-2
1