Roland Corporation SVC-350 User's Manual

SVC-350

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SERVICE

SPECIFICATIONS

ROLAND

VOCODER

Modal

SVC-360

INPUTS

MIC

INPUT:

snone

Connector

INSTRUMENT

STANDARD

OdB

QUrTAR

D*.one

flaw

INSTRUMENT

Switch

Jack

HLJ-OI9-01-030

1/4

inch

Jack

or

iciOOonm.

max.)

INPUT:

Jack

level.)-lOdBmi75OmV)

(OdBm.

STANDARD

EIA-RS297

-54dBm

INPUT:

Phone

1-4

dOOkonm.

LEVEL

-i5dBm,

1/4

Jack

HOOkonm,

inch

STANDARD

GUITAR

SELECTOR

-30dBm)

mm.)

men

INPUT

.ED

MIC

INSTRUMENT

GUITAR

OUTPUTS

For

STANDARD

MONO

inch

Knot

(O09-046)

Pot.

GUITAR

NOTES

LEVEL

DISPLAY

LEVEL.

or

STANDARD

no.44

3VH6PA361C14

INDICATORS:

5

Green.

LEVEL.

AMPLIFIER:

Phone

STEREO

Phone

Red/over

Green

Red/over

1/4

Jack ( lOkohia)

OUTPUTS:

Jack

(016-044)

(026-161)

Red'

over

inch

1/4

CONTROLS

MIC

LEVEL

CONTROL

(,-5413111

POWER

DIMENSIONS:

mm

WEIGHT: 5 •

Knob

Pot.

to

CONSUMPTION:

482(W) x 92(H) x 350(0)

3kg

no.77

3WJEJA320B14

(026-155)

SDG5P001

3DG5P0C1-2

SDG5P5O2

-14dBm)

13W

Button

no.

(016-009)

Panel

(072H058)

(016-077)

Power

3w.tch

9

H58

Haxa^a

(01-156)

('01-216)

100V

117V

(01-217)

220/240V

socket

head

bolt 4 x

czim

blk

t—->

HANDLE

108 H 00

3

c

MACHINE

6-M4X10

SCREW

BLK

MACHINE

6-M4X12

RUBBER

FOOT

K-15U11-C3'

CCVER

O65HO6O

SCREW

BLK

Jack

HLJ-O2

46-01-030

(O09-030)

Jack

HLJ-024-01-030

(009-030)

Switch

SSM-02308

(001-196

Pot.

Knob

no.48

(016-048)

Pot.

EVHHPS20B14

(029-589)

'

EVH8MA361A14

(026-163)

Recectacle

NC-3PP

Switch

SSM-02308

(001-196)

Jack

HLJ-C264-1-030

Jack

HLJ-O261-O1-O3C

(009-037)

Jack

HLJ-O264-O1-C2C

(009-040)

—(

or

I-3M

(010-264)

(009-OP)

MIC AMP

AP-127

(141-127/

Beard

CONTROL

OP-142

Board

(149-142)

i—

LED

OP-150

r-Fuse

OP-143

OP-144

OP-145

Board

(149-15C)

Board

100V

117V

220/24CV

Power

transformer

C22-028N

100V

022-028C

117V

022-028D

220/240V

Terminal

TT501D-1

(042-032)

Knob

rot.

no.77

(016-077)

EVEEQA361314

(O26-158)

LED

TLR-124

TLG-124

(019-028)

(019-029)

red

1—Knob

green

Printed

no.44

Pot.

3Wo"EJA320B14

(026-155)

in

Japan

(016-044)

A3

1

FILTER

FL-19

FL-19D

Board

(145-019)

(14--C1C)D)

100.

ll'V

22C

240V

Ground

terminal

TT-9-4

(042-041)

HOLD

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Dec.

8,1979

HOLD

MIC

K

2?

(»B0)

AIIIMO

AUDIO

DELAY

k—J

J

TC2K9

8BJ

AU&IO

DELAY

J

I

Q3C

031

LPF

Oil

LPF

038

IC53

ANALYZER

IC5O.55

EXPANDER

INSTR'

DIRECT

OT4

IC45

PEAK

PETCCBR

3IG.

BPF

-CONT

'red

FILTERS

OJ7

PEAK

METEC7&R

■LPF

5OHs

icHz

FL-19

r-

1

DC

TRIAN6UU*

IC44

OSC

fSi/3

SYNTHESIZER

A

SPF

:C2-7

Kit

/CA

M

33

IC38

VCA

IC37

8f«-3

Circuit

♦

DIRECT

i—■

f

ilL

"ON"

FILTERS

BPF

IC39

AMP

IC12a

re

i*

f

L.rt.M

ATT

l '

wt.

air

n

A

(A-»B)

CLOCK

OSC

Q32-O36

CLACK

AA

LPD-I

IC25

LFO'2

IC26.Q44

Q26

A

LNV-

ENSEMBLE

ON,

OFF

SVC-350

BLOCK

AMP

IC12b

DIAGRAM

I

L.W.H

LEVCL

AMP

-B.

1

'0

PHONES

MOUII

Scan by Manual Manor

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IIUIM

-Deiail-

J

"/:.rTHE

JIZEli ? IL

:2h

TOCCDiiR

I1CLD

uec.

8,1979

After

Mic

proportional

The

by

Ipins

7-1

pins 6 and

As

causes

IC4

above

In

the

and

Ihe

3x?ander3

varies

thi3

reciy

flows,

Ten

IC55;

The

IC5l?in3

3pectrum.

peak

3tage

that

ampi—

3ignal

IC3

ijoea

aic

3i,sr.ai

(pir.3

1-3;,D*,

converted

7 in

the

mic

si-gnai

3A662

(pins

5-7;

10V

(2OVpp).

thi3

7oc

Mic

compressor

synthesizer

output

IC17-20,

in

the

fashion,

proportional

the

moire

3?Fs

witri a nign Q consisting

covers

3ignal

5-7)

Each.

is

letected,

filter

is

-Synthesiser

proportional

CCMPR3USCR

fled

by

14-54d3

to

id

to

she

control

coming

5-7),

Dl

and

jncothed

by

IC4

(.pins

parailed

increases,

conductance

to

retain

oder,

there

ir.

configuration:

filler

SXPAIJDSR

-voltage

same

3igr.al

signal

output

at

322

and

direction

flew

to

the

flows

ANALYZER

most

of

the

from

the

compressor

and

fed

to

3lice

goes

3moothed

to

*.he

through

i,pin3

5-7)

current

from

IC2

D2,

peak-voltage

to

DC

voltage

Mic

Head

whoje

gain

from

Q5

pin 7 La

by

1-3),Q5 • Connected

with feedback

Q5

output

to

increase,

either

are

pin 1 of

rate

control

half

two

other

channe-.

32;.

The

a3

in

through

resistors

current

lowering

peak

compressors

in

Guitar

IC5

io

current

the

Compressor,

IC13

current;

IC13.

FILTSR

of

ICs

audio

the

spectrum -3peech

is

pre-emphasized

filter

bank

which

to a iiode(e.g.

and

is

fed

to

the

filter.

This

jtrer-ght

of

i3 a control

that

Amp

or.

Ar-127,

i3

reversely

emitter.

full-wave

detected

IC5

rectified

by

(pir.3

1-3),

acros3

is

IC1

increases,that

the

gain

output

from

similar

preamp

al30

received

from

322

but

(IC2G/

the

(s.

is

more current

g.

IC<?G

signal.

through

slices

D37)

where

7CA

slice.

up

its

in

the

voltage

IC3

ani

IC4'3

3A6CJ.

of

$oing

to

ohain

oy

^323)

with

ii-

and

the

Jyr.th^ji»'.«r

ticai

■ii

IlAiuMCIIICS

3ound

ioea

•/oit'dge—

IC55.-C63),

IC33

to

exceeds

13

going

rate

and

pul3e3ating

passing

from

"requer.cy

to

•-•oming

jpectrua

on

the

:ontroiied

During

is

kept

the

When

the

lower

turns

triangular

1;

tum3

througn

pulse

through

IC33

IC63

This

H?F

tne

Mic

tnose

througn

circuit,

jpeech

an

absence

negative

positive

11,

voltage

to

"H"

to

IC32

width

rectified

10

11

7

allows

imp

range

f-itor u a

of

the

Analyzer

either

i'he

into

3pectrua.

amp

7CA

IllSTRUMENT

filter

banas

-7CA.

of

signal

peaks of

-determined

disnabling

from

ICc3

portion

wnich

the

HUH

.r.oapub^e

of

trianiguiar

in

turn

wave

reaches

"L"

and

IC32

aepend3

is

proportional

3ignal3

IC33

CCNSCIIA3T

only

high-frequency

:o

pass

30

.:'

jet

^f

oar.'i?-^

3ection,iJfed

or

joJAR

bank

3lice3

:n

the

3aoe

Each

3lice

in

Analyser

trian^alar

by

3witcnir.g

increases

gates

above

turns

off.

sn

the

width

to

-Co;

are

smoothedwhile

-IC39.

1

Jp

way

Analyser

tr?n

'ilterie.g.IC5O

*ve

7?.3 • with

gata

-iC;2.

to . scae

wave,au3ing

1C32

:.

the

/ctage

Ths

of

lulse

;;trcl

-rj

FILTER

cccc'-.ent

aa

to

coaper.sa;

reprcciuc-.ior.

:

filr-jr,

by

preaap

instrument

connects

jn

.ier.-

tne

o.^n-

filter

1J

and

to

respect

extent,

IC33

When

pc3itive

on

signal

flow

:*r:a

1C33

ventage.

tr.ey

n

-n

signal

f^r

r.igh-

t.ie • :c

:aer

of

it

11,

are

rhu

'jirrj;;

KCLD

jacit

circuit

mcrea3*3

and

to

a

3ignal

10-12)

H3O7

constant

Because

wiper

in

value;

overall

teristics

During

3hut3

system.

3y3tem.

IC45

fier,

ielivered

adequately

•hen

at

the

ground

ready

IC37

mines

H?F

sigriHl

sponds

in

jnunt

supplied

on,

from

iiscr.argir.g

can

resi3*or3,

terminals

the

frequency

.

an

inadvertent

(?in3

the

by

smcctn

this

5,

pin I goe.s

rrea

to

function.

pin 7 al3o 3ees

1's

flaw

to

s^e-izr.

.j

•:

i.-npoj.jd

:pen3,

-.r;-*

positive-going

175 0 input

to

through

turning

1C53

(pins 3 and

path,

r.old

previously

7CICS

JHARACTCR

-R726,728,

of

CHARACTCR

higher

the

response

SOUNU

absence

The

~-~},

average

IC21

vc.tage -at

DETECTOR

of

musical

3ignal3

sound

detector

D51

and D52

output

pir.

1,

^C

output

to

negative,

pin 2 of

Sound

output

pulse

rare.

3

peer

rum,

While

;f

QC.Q3

and

5Cm3

the

D7

turns

increased

charged

CONTROL

frequency,

offer3

in

under

voltage

then

from

pin 4 of IC37 -exceeas

1C17(IC19J.

Detector's

rfidth

Synthesizer

H?F

'lnd

Q.X.

later,

to

ground.

turn

On

FST

3witch

9)

off,

the

Q2

on tne

the

disconnecting

discharging

C135

for

CONTROL

730

connected

pots,

are

the

^arger

de-emphasized

instrument's

the

i3

the

make

up a full-wave

is

IC45

1.

cutting

signal,7cccder

coordination

first

3tage

peak

of the

(pins

1-3)

Q29

off,

Expanders

output

which

in

turn

filter

.'CA

to

tne

instrument'

gate

other

IC53

7-10sec.

different

the

charac

and

regulates

7CA

*hen

the

output

Ql

hand,

(pins

time

to

value:

of

a

of the

recti

3ignal

provides

voltage

removing

are

now

deter

re

3.

CIRCUIT

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DESCRIPTION

—General-

Z.

Synthesiser

Like

the

first

,'3e;or.a;

filter,

liter

aausicai

and

"CAs

3cund

signal

i.

Kigir.

Filter

Frequency

\Reiionant

Voice

Signjil

Filter)

Bypass

Voice

from

XIC

In

through a group

Com

pressor

the

Vocoder,

Holi

the

of

Sound

High

3yr:as3

voice

filters

from

Sound

Filter

1st

Filter

signal

to

Musical

Amplitude Detector

from a Mic

slice

up a voice

Instrument

Sound

Detector

2nd

Filter

-*•

VCA

•*

is

frequency-analysed

signal

frequency

Sxcander

being

spectrum

passing

is

amplitude,

output

signal.

output

3cund

Thus,

ideal

it

3•

supplied

components.

through

proportional

the

is

analogous

In

ether

is

mixture

signal

uniform

for

reproduction

is

no

longer

Compander

is

resolvd

Sise a musical

the

3ecori

to

the

f*st

spectrum £ the

to

trit

words,

of

and

the

3ound

of a musi:al

:he

trie

input

firs:

signa.

of

human

into

group

of

signal

spectrum

frequency

of

filters

filter

second

output

second

the

vcice

filter

musical

output.

would

3ound

filter

voice,

instrument.

be

but

3mce

r.oise

V.ioe,

to.

musical

signal,

ccmbined

5.

This

long

Vocoder

musical

components

the

Furthermore,

intervals,

with

Musical

circuit

as a musical

and

scur.d

sounds rarely

such

second

passes

Sound

tells

filter

such a sound,

is

through

the

second filter

Signal

-obstructs

sound

the

signal

is

include

as

"fricative"

has

no

separated

this

Detector

tne

second

is

not

circuits 3 and i whether

being

fed

high

frequency

may

spectrum

hardly

from a mic

circuit

outputs.

filter

supplied

cr

to

relating

and

output

to

net.

be

respen:

inpu"

is

the

in

t:

re-

a;

a

3pectruna

to

another

tions

human

Fundamental

t.ie

Blocsk

1.

Analyzing

A

Mic

cy

band

the

VCAs

Signals

at

VCA

band of

featuring

group

equivalent

voice

with

musical

Vocoder

Diagram

(first)

iixput

signal

components

of

the

Synthesiser Filter

passing

b.y

the

tne

through

control

first

filter.

huaar.

of

to

voice.

musical

human

sound

acuth

sound

functions

shown

above.

Filter

is

resolved

which

are

and

are

amplitude-detected

second

signal

coming

Then

the

spectrum

signal

and

filters

throat

and

signals.

discribed

Amplitude

by a group

(second

filters

are.

from

below

Detectors

of

filters

filter).

controlled

corresponding

is

duplicated

to

obtain

thus

to

according

into

and

supplied

in

func

simulate

to

freqen-

volume

frequency

tc

The

compander

compressor

The

compressor

range

cut

first

On

range

a

Thus

in

amplitude

signals

filter.

the

contrary,

of

amplitude

larger

amplitude

restores

is a combination

and

an

excajier.

reduces a a

and

range

than

the

input v oltages,

range o f

the

ordinal

expan

ic

su:

plies

inj

ut

der,

output

volume

input

signals'

3f

a

signals

smaller out-

to

the

for a given

produces

voltage.

range.

Thi3

circ

luring

singer

some

During

volume

ages

Tne

is

though

an

inspires,

special

holding,

by

and

expander

compressor

turned

,Xic

.it

enables

interruption

effect

holding

gain

off

so

input

Vocoder

in

-he

function

applications.

this

circuit

amplitude

control

is

as

to

singal

voltage.

minimised

1-ceep

is

to

hold

its

mic

signal,e.g.

can

also

retains

spec

ietectors

and

the

vcice

changing.

unchanged

output

when

be

used

trams

output

volt

vcice

a

for

and

gate

ever.