Roland SH-2 Service Notes

OCT. 15 ,1979 (First Printing) PEB.
3,
1984 (Second Printing) SH-2
SH-2
SERVICEJIQI^
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
(r>v
,
/I
,
m
,fU
)
BENDER ON/OFF SWITCH
VCO-2
RANGE
(32', 16',
8', 4', 2')
WAVEFORM
(NOISE, /I
,
Rj
,
fU
)
VCO-2 TUNE
TUNE RANGE (WIDE/NARROW)
•AUDIO MIXER
VCO-1 SUB
VCO-1
VCO-2
•VCF
CUTOFF FREOUENCY
(10Hz
-
20kHz)
RESONANCE
(0 - self
oscillation)
ENVELOPE SWITCH
(ENV FOL'R,
ENV
,
ENV
V-
)
ENVELOPE
CONTROL
MODULATION CONTROL
KYBD CV
CONTROL
•VGA
MODULATION SWITCH (HOLD,
ENV
a-v
KYBD GATE
Tl
)
•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/
fU
/
^
)
RATE
(0.2Hz -25Hz)
DELAY
TIME (0-
1.5s)
LED INDICATOR
•POWER SWITCH
(with
LED
indicator)
•VOLUME CONTROL
•PORTAMENTO
(0 5s)
•BENDER LEVER
•INPUTS/OUTPUTS
OUTPUT
jack (-lOdBm)
HEADPHONE
jack
(stereo,
80
)
CV
INPUT
jack (IV/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
Panel removal screws
Knob No. 33
Tap-tight B (self tapping) (016-033)
Knob No. 57
3
X
lOmm Br BH
(016-057)
Button
No.
8
(016-008)
grey
Endblock H22
removal screws
Tap-tight B
(self tapping)
Br BH
(rear
3
x 6mm)
4
X 8mm Br
BH
(keyboard)
X 10mm)
Endblock removal
screws
(
5pcs)
Tap-tight
B(self tapping)
3
X 10
Br BH
(front
3
0PH64
0PH43
Holder H73
(064H073)
0PH61 0PH63
Power transformer
H20C
100/117V
(022H020G) or
H20J lOOV only
H20C-B
117V only
H20D 220/240V
(022H020D)
Keyboard
PSH-31/32/33
EndBlock
H21
(R/L set)
(066H021)
OPH65
Power switch
SDG5P 001-1 lOOV
(001-215)
SDG5P 001-2
117V
(001-216)
SDG5P 502 220/240V
Bender unit
PB-4 (029-022)
End block (panel)
H22 (066H022)
SKL32-H
(004-013)
Jacks
S-G7622 #08
(009-012)
Panel H48
(072H048)
Chassis H79
(061H079)
I
Rubber Feet
G-5 (111-021)
G-7 (111-023)
Jack washer
(red)
(121-018)
Jack S-G7713#08
stereo
(009-036)
rear
front
Roland
Printed
in
Japan
B-2
1