Yamaha E1010 E1010 Owners Manual Image - Page 3

Brief

operating

instructions

2

*YAMAHA

If

L

Fig.

1

—

Front

Panel

A.

POWER

INDICATOR

This

LED

(Light Emitting

Diode)

is

illuminated

whenever

the AC

power

is

switched

ON.

B.

POWER

SWITCH

This

recessed

latching

pushbutton

turns the

E1010

AC

Power

ON

and

OFF.

Transient

supression

circuitry

avoids

loud

turn

-on

or

turn-off

"thumps."

C.

INPUT

LEVEL

DISPLAY

The

display

monitors

the

signal

level

after

the

E1010

Input

level

control.

The

display

has

9 LED's

which indicate

peak

values

from

—18dB

to

I-3dB

(0dB

=

—30dBm).

D.

INPUT

LEVEL

CONTROL

This

control

adjusts

the

input

sensitivity

for

optimum

interface (i.e.,

for

low

noise

and

low

distortion).

Set

the

control

so

the

display indicates

"0dB"

on

program

peaks,

with

average

levels

of

about

"-11dB."

E.

BASS

&

TREBLE

TONE

CONTROLS

These

controls

are

provided

to

alter the

character-

istics

of

the

delay

l

ine

—not

just

the

treble/bass

content,

but

the

overall

effect.

The

Bass

and

Treble

controls

modify

only

the delayed

signal,

not

the

direct

sound.

Each

control

provides

a

maximum

12dB

of

boost or

cut,

with

turn

over

points at

70Hz

(Bass)

and

7kHz

(Treble).

F.

DELAY

SWITCHES

&

CONTROL

Five

pushbuttons

select

different

ranges

of

delay

time,

in

milliseconds:

3-10ms,

25-75ms,

50-150ms,

75-225ms,

and

100-300ms.

An

adjacent Delay

control

enables

the

actual delay

time

to

be

continuously

varied

from

the

minimum

to

the

maximum

within

each

range.

G.

FEEDBACK

This

control

adjusts

the

proportion

of

delayed

sound

from

the

E1010

output

that

is

mixed

back

into

the

E1010

input.

Increasing

the

amount

of

feedback

lengthens

the

duration

of

an

echo,

and

adds

sustain

to

other

effects

as

well.

If

Feedback

is

set

high

enough,

regeneration

can

occur

(oscillation

or

run

-away

echo).

This

can

be

cured

by

lowering

the

Feedback

setting

or

by

varying the

Delay

time

up

and

down.

H.

MIXING

The

E1010's

front

and

rear

panel

Output

jacks

can

be

varied

from

all

delayed

to

all

direct

sound.

Full

counterclockwise

rotation

of

the

Mixing

control

yields

all

direct

sound;

as

the

control

is

rotated

clock-

wise,

more

delayed

sound

is

mixed

in

until

the

Output

jacks

carry

all

delayed

sound.

The

rear-panel

Direct

Only

output

jack

always

has

100%

direct

sound and

is

not

affected

by

the

Mixing

control.

I.

MODULATION

FREQUENCY

&

DEPTH

CONTROLS

Within

a

given

delay

range,

the

actual

delay

time

can

be

varied manually

with

the

Delay

control,

or

it

can

be

varied

automatically

with

these

Modulation

controls.

The

Depth

knob

sets

the

amount

of

deviation

in

delay

time.

The

maximum

deviation

increases

in

longer

delay

ranges.

The

rapidity

of

the

deviation

in

delay

time

(the

speed

of

the

effect)

is

set

with

the

Frequency

knob.

Modulation

is

useful

for

vibrato,

flanging,

phasing,

and

similar effects.

J.

INPUT

JACK

This

standard

phone

jack

is

unbalanced

and

has

a

nominal

—30dB

(24.6mV)

sensitivity.

(The

impedance

is

very

high,

800

kohms.)

Another

Input

jack

is

pro-

vided

on

the

rear

panel,

but

this

front

-panel

Input

jack

takes

precedence;

if

sources

are

connected

to

both

inputs,

only

the

front

input will

be

fed

to

the

unit.

K.

OUTPUT

JACK

This

standard

phone

jack

is

unbalanced

and

has

a

nominal

—20dB

(78mV)

output

level.

It

is

intended

for

driving

high

impedance

inputs.

This

jack

is

parallel

wired

with

the

rear-panel

Output

jack,

so

both

may

be

used

at

the

same

time.

This

output will

provide

delayed

and/or

direct

sound depending

on

the

position

of

the

E1010's

Mixing

control.

L.

FOOT

SWITCH

JACK

This standard phone

jack

is

provided

for

use

with

a

guitar

-type

foot

switch.

The

switch

turns

al

l

delay

effects

ON

and

OFF

(tone,

delay

time,

feedback

and

modulation),

but

it

does

nothing

to

the

direct

sound.

A

foot

switch

is

handy

for initiating

an

echo

effect

at

the

end

of

a

vocal

or

instrumental

phrase,

for

abruptly

ending

an

effect

on

a

precise

cue,

etc.

Yamaha E1010 E1010 Owners Manual Image - Page 3

Brief, operating, instructions - delay

Page 3 highlights