Fostex G24s User manual

Owner

’

s

Manual

Model

G24S/G

1

6S

RECORDER/REPRODUCER

CAUTION:

TO

REDUCE

THE

RISK

OF

ELECTRIC

SHOCK,

DO

NOT

REMOVE

COVER

(OR

BACK).

NO

USER-SERVICEABLE

PARTS

INSIDE.

REFER

SERVICING

TO

UALIFIED

SERVICE

PERSONNEL.

A

The

lightning

flash

with

arrowhead

symbol,

/f\

within

an

equilateral

triangle,

is

intended

to

/

fa

\

alert

the

user

to

the

presence

of

uninsulated

/

1

\

"dangerous

voltage"

within

the

products

en-

/

y

\

closure

that

may

be

of

sufficient

magnitude

to

constitute

a

risk

of

electric

shock

to

persons.

A

The

exclamation

point

within

an

equilateral

/

j\

triangle

is

intended

to

alert

the

user

to

the

/

I

\

presence

of

important

operating

and

mainte-

/

I

\

nance

(servicing)

instructions

tn

the

literature

/

*

\

accompanying

the

appliance.

“

WARNING"

"TO

REDUCE

THE

RISK

OF

FIRE

OR

ELECTRIC

SHOCK,

DO

NOT

EXPOSE

THIS

APPLIANCE

TO

RAIN

OR

MOIS



TURE."

SAFETY

INSTRUCTIONS

1.

Read

instructions

—

All

the

safety

and

operating

instruc



tions

should

be

read

before

the

appliance

is

operated,

2.

Retain

Instructions

-

The

safety

and

operati

ng

i

nstructions

should

be

retained

for

future

reference.

3.

Heed

Warnings

—

All

warnings

on

the

appliance

and

in

the

operating

instructions

should

be

adhered

to,

4.

Follow

Instructions

—

AR

operating

and

use

instructions

should

be

followed.

5.

Water

and

Moisture

—

The

appliance

should

no!

be

used

near

water

—

for

example,

near

a

bathtub,

washbowl,

kit



chen

sink,

laundry

tub,

in

a

wet

basement,

or

near

a

swim



ming

pool,

and

the

like.

6.

Carts

and

Stands

-

The

appliance

should

be

used

only

with

a

carl

or

stand

that

is

recommended

by

the

manu

7

facturer.

An

appliance

and

cart

combination

should

be

moved

with

care.

Quick

stops,

excessive

force,

and

uneven

surfaces

may

cause

the

appliance

and

cart

combination

to

overturn.

7.

Wall

or

Ceiling

Mounting

—

The

appliance

should

be

mount



ed

to

a

wall

or

ceiling

only

as

recommended

by

the

manu



facturer.

8.

Ventilation

—

The

appliance

should

be

situated

so

that

its

location

or

position

does

not

interfere

with

its

proper

venti



lation.

For

example,

the

appliance

should

not

be

situated

on

a

bed,

sofa,

rug,

or

similar

surface

that

may

block

the

ventilation

openings;

or,

placed

in

a

built-in

installation,

such

as

a

bookcase

or

cabinet

that

may

impede

the

flow

of

air

through

the

ventilation

openings.

9.

Heal

—

The

appliance

should

be

situated

away

from

heat

sources

such

as

radiators,

heat

registers,

stoves,

or

other

appliances

{including

amplifiers)

that

produce

heat,

10.

Power

Sources

-

The

appliance

should

be

connected

to

a

power

supply

only

of

the

type

described

in

the

operating

instructions

or

as

marked

on

the

appliance.

11.

Grounding

or

Polarization

-

The

precautions

that

should

be

taken

so

that

the

grounding

or

polarization

means

of

an

appliance

is

not

defeated.

12.

Power

Cord

Protection

—

Power

supply

cords

should

be

routed

so

that

they

are

not

likely

to

be

walked

on

or

pinched

by

items

placed

upon

or

against

them,

paying

particular

attention

to

cords

a!

plugs,

convenience

recep



tacles,

and

the

point

where

they

exit

from

the

appliance.

13.

Cleaning

—

The

appliance

should

be

cleaned

only

as

recommended

by

the

manufacturer,

14.

Nonuse

Periods

—

The

power

cord

of

the

appliance

should

be

unplugged

from

the

outlet

when

left

unused

for

a

long

period

of

time.

15.

Object

and

Liquid

Entry

—

Care

should

be

taken

so

that

objects

do

not

fail

and

liquids

are

not

spilled

into

the

enc



losure

through

openings,

16.

Damage

Requiring

Service

—

The

appliance

should

be

serviced

by

qualified

service

personnel

when:

A

The

power

supply

cord

or

the

plug

has

been

damaged;

or

B.

Objects

have

fallen,

or

liquid

has

been

spilled

into

the

appliance;

or

C.

The

appliance

has

been

exposed

to

rain;

or

D.

The

appliance

does

not

appear

to

operate

normally

or

exhibits

a

marked

change

in

performance;

or

E.

The

appliance

has

been

dropped,

or

the

enclosure

damaged.

17.

Servicing

—

The

user

should

not

attempt

to

service

the

appliance

beyond

that

described

in

the

operating

instruc



tions.

All

other

servicing

should

be

referred

to

qualified

service

personnel.

19RA

INTRODUCTION

Congratulations

on

your

purchase

of

the

Fostex

Model

G24S/16S

multitrack

recorder.

The

G24S/16S

combines

Fostex

legendary

reliability

with

the

most

up

to

date

automation

features.

Please

read

this

manual

carefully

before

operation

to

obtain

maximum

results.

We

at

Fostex

have

tried

to

create

a

“

user

friendly"

machine

as

well

as

one

whose

functions

and

parameters

offer

unparalleled

flexibility.

With

proper

care

and

handling

the

G24S/16S

will

give

you

many

years

of

top

performance.

If

you

have

any

questions

or

comments

please

contact

your

nearest

Fostex

authorized

service

center.

Our

technicians

will

be

happy

to

be

of

service.

Although

this

manual

is

written

for

G24S

the

basic

differences

between

these

two

recorders

are

only

on

tape

specifications

and

number

of

channels

while

other

functions,

etc.

are

the

same.

Points

of

diffemces

are

written

inside

()

which

are

extracts

from

the

G16S

Owners

Manual.

MAJOR

FEATURES

•

The

G24S(G16S)

is

a

1(1/2)inch,

38cfn/sec

(15ips)

24(16)

-track

multichannel

recorder

featuring

a

variety

of

automated

functions.

•

A

high

degree

of

noise

reduction

and

superior

sound

quality

are

presented

by

the

Dolby

S

system

employed

for

ihe

first

time.

All

tracks

OMOFF

or

track

24(16)

only

OFF

settings

available.

Refer

to

page

2

for

further

information.

•

Operability

has

been

improved

by

providing

a

control

panel

which

can

change

angles

or

be

completely

detached

enabling

you

to

have

fingertip

control

of

the

G24S/G16S

from

your

console

location.

•

Employment

of

the

spot

erase

function

allows

you

to

erase

items

such

as

click

noises

by

using

the

jog

shuttle

in

the

cueing

edit

function.

•

The

G24S/G16S

contains

a

memory

of

10

cue

points;

Ideal

for

recalling

data

in

one

simple

process.

*

Shuttle

repeat

(repeated

playback)

is

another

convenience

that

uses

the

auto

return

function

in

conjunction

with

the

auto

play

function.

’

The

G24S/G16S

has

a

built-in

±12%

pitch

control

function

with

the

current

tape

speed

indicated

on

the

display.

•

Location

memory

function

automatically

memorizes

the

last

point

of

locate

operation,

(separately

from

the

cue

memory),

allowing

you

to

work

more

quickly

and

efficiently.

•

The

zone

limit

function

can

be

used

to

prevent

the

tape

from

being

completely

wound

off

the

reel.

The

G24S/G16S

displays

the

remaining

tape

time

even

in

the

play

mode,

making

it

possible

to

manage

ihe

end

zone

more

accurately.

•

The

G24S/G16S

has

bargraph

level

meters

which

can

display

four

mode

settings

such

as

peak

hold,

"zooming

’

to

OdB,

etc.

Synchronizer

card

8330.

Optional

Installation

of

this

card

enables

the

recorder

to

do

sophisticated

synchronization,

slave/master

functions

with

other

recorders,

CAUTION-1

Full

attention

should

be

paid

to

ventilation

as

heat

sinks

are

located

on

th

top

side

of

G24S/G16S,

and

G24S

in

particular,

generate

quite

an

amount

of

heat.

Do

not

place

anything

on

the

top

side.

Always

maintain

more

than

10

centimeters

of

space

above

and

around

the

top

side.

CAUTION-2

(G24S)

Model

G24S,

when

shipped

from

the

plant,

has

the

two

front

feet

on

the

bottom

side

installed

for

flat

operation

of

the

recorder

(the

feet

are

not

protruding

beyond

the

front

panel).

In

such

a

direction

of

installation,

the

recorder

will

not

stand

firmly

when

placed

upright

(vertical

attitude)

and

is

extremely

dangerous.

If

you

must

operate

it

tn

an

upright

position,

be

sure

to

unscrew

the

two

front

feet

and

reverse

their

mounting

direction

so

that

they

extend

beyond

the

front

panel

plane

as

shown

In

the

drawing

below.

-1-

ON

DOLBY

S

What

is

Dolby

S

......

?

The

Dolby

Type

S

Noise

Reduction

System,

employed

for

the

first

time

in

Fostex

Model

G24SA3 6S,

will

be

explained

below

in

brief.

Dolby'S,

while

inheriting

the

Dolby

SR

technique,

“

the

ultimate

noise

reduction

(NR)

system"

developed

for

commercial

use,

is

a

revolutionary

NR

system

modified

to

the

greatest

degree

of

excellence

for

consumer

use

by

rationalizing

its

circuit.

Composition

of

Dolby

S

IN

Dolby

S,

as

shown

in

Figure:

“

Basic

concept

of

Dolby

S",

the

entire

frequency

band

is

divided

into

low

and

high

ranges

at

around

400Hz

(the

low

range

is

processed

from

200Hz

and

below);

and

further

the

level

is

divided,

from

Dolby

level

to

-25dB

as

high

level

and

below

this

down

to

-50dB

as

low

level,

and

a

maximum

of

2dB

processing

applied

to

each

high

and

low

level

groups.One

stage

of

the

fixed

band

type*

processor

for

the

low

level

group,

and

two

stages

each

of

the

fixed

and

sliding

band

type*

2

are

provided

for

the

high

level

group.

Now

lets

compare

this

with

the

conventional

Dolby

C

type.

The

C

type

has

a

sliding

band

for

the

high

region

in

the

high

and

low

levels

(indicated

in

box

of

Figure:

“

Basic

concept

of

Dolby

Sj

The

reason

for

dividing

it

into

two

levels

is

to

compress,

in

one

step

only

for

the

high

level

input

signal

and

in

two

steps

for

the

low

level

signal,

to

maintain

optimum

processing

figures

against

the

signals

while

attaining

noise

reduction.

Operating

merits

of

each

system

can

be

expected

in

the

S

type

by

combining

the

fixed

band

to

this.

The

real

value

of

Dolby

S

is

clearly

revealed

here

and

the

importance

in

sound

quality

is

stressed.

And

by

also

providing

one

stage

of

fixed

band

in

the

low

region,

the

NR

effect

is

applied

to

the

entire

frequency

band.

As

a

result,

it

can

reduce

noise

in

the

low

region

by

0dB.

Furthermore,

the

high

region

noise

suppression

amounts

to

24dB

acquired

by

two

stages

of

maximum

2dB

each

which

exceeds

20dB

in

the

C

type.

Input

Level

(dB)

Dolby

Level

-50

High

Level

Low

Level

200

400

f(Hz)

Basic

concept

of

Dolby

S

-2-

*

’

Fixed

band:

Even

in

the

superior

sliding

band,

it

does

have

faults.

When

the

music

signal

is

concentrated

in

the

comparatively

high

frequency

(3kHz

and

higher),

the

NR

effect

drops

in

the

band

lower

than

the

music

signal

since

cutoff

slides

toward

the

higher

side.

To

compensate

this,

the

NR

effect

is

maintained

by

using

the

fixed

band

for

the

region

below

6kHz.

‘

2

Sliding

band:

Compared

to

the

full

band

type

NR

even

though

music

signals

around

400-

,000Hz

exist,

it

has

the

superior

nature

of

not

largely

degrading

the

NR

effect

above

kHz

(hiss

noise

is

concentrated

around

-2kHz)

compared

to

when

there

is

no

music

signal.

It

can

be

said

that

this

characteristic

is

cleverly

employed

in

the

C

type.

Therefore,

an

ideal

NR

effect

throughout

the

entire

band

is

obtained

by

combining

the

two

types

of

proc



essing

circuit

to

utilize

the

merits

of

both

types.

The

Dolby

S

thus,

is

an

ideal

NR

system

with

high

noise

reduction

capability,

together

with

minimum

affect

on

sound

quality,

attained

by

cleverly

combining

five

processing

circuits

for

non-demanding

processing

of

the

signals.

This

is

a

heretofore

unknown

high

level

system

which

demands

high

basic

performances

from

the

recorder

in

order

to

draw

out

its

superior

characteristics.

The

G24S

can

be

used

without

hesitation

as

it

more

than

fully

comply

to

this

demand.

-3-

TABLE

OF

CONTENTS

BASIC

OPERATION

1.

NAMES

AND

FUNCTIONS

OF

CONTROLS

.....................................................................

7

Front

Panel

.......................................................... .

Control

Panel

.......................................................

’

g

Rear

Panel

..........................................

4

2.

CONNECTIONS

...............................................................................

ZZZZZZZZ'

5

3.

PREPARATIONS

FOR

RECORDING

.................................................................................

6

The

Recording

tape/Loading

the

tape

........................................

6

4.

RECORDING

...........................................................................................................................

7

)

Pre-check

Recording

Levels

and

Sound

Quality

.................... .........

7

2)

Recording/Playback

................................................ .

3)

Overdubbing

..................................................... .

4)

Punch-in/Out

..................................................... .

5)

Cueing

Mode

.................................................... .

6)

Spot

Erase

Mode

...................................................

20

ADVANCED

OPERATION

1.

CONTROLLER

.......................................................................................................................

2

Changing

unit

angle/Disconnection/Connection

...................

2

2.

DISPLAYS

..............................................................................................................

’

24

3.

FUNCTIONS

OF

[RCL]

[?]

.............................................................................................

25

)

[RCL]

-♦

[n]

/

Cue

Memory

Recall

.......................................

25

2)

[RCL]

->

[PiTCH]

/

Display

of

Pitch

Control

.................................

28

3)

[RCL]

-+

[METER]

/

Selection

of

Meter

Display

Mode

..........................

28

4)

[RCL]

—

>

[INPUT

MON]

/

Selecting

Individual

INPUT

MON

&2

...................

30

5)

[RCL]

—

>

[J

/Recall

of

Last

Play

Point

.....................................

3

6)

[RCL]

—

>

[LOCATE]

/

Recall

of

Location

Memory

.............................

32

7)

[RCL]

->

[ZONE

LIMIT]

/

Setup

of

Zone

Limit

Section

..........................

33

8)

[RCL]

->

[AUTO

PLAY]

/

Display

of

Remaining

Tape

Time

......................

35

9)

[RCL]

->

[HOLD]

/

Display

of

Zone

Limit

Section

Length

........................

35

0)

[RCL]

->

[+ 0]

/

Setting

the

Tape

Base

Thickness

............................

35

)

[RCL]

->

[AUTO

RTN]

/

Setup

of

Auto

Return

Memory

.........................

36

2)

[RCL]

—

>

[-/PREROLL]

/Setting

of

Preroll

Time

............

37

4.

2ND

MODE

FUNCTION

.......................................................................................................

38

)

Change

of

Initial

Settings

„

...

3g

2)

Sort

Mode

..............

43

3)

Direct

Locate

Mode

..............................................

”

45

4)

Meter

Display

Mode

................................................ .

-4-

REFERENCE

SECTION

DISPLAY

INDICATIONS

AND

CHARACTER

INPUT

CODE

TABLE

........................

48

G24S/16S

UICK

REFERENCE

CHART

OF

COMMANDS

........................................

49

ERROR

INDICATIONS

.......................................................................................................

51

AMPLIFIER

ADJUSTMENTS

............................................................................................

53

MAINTENANCE

...............................................................................

56

SPECIFICATIONS

.....................................................................................................................

57

ACCESSORIES

.........................................................................................................................

58

OPTIONS

...............................................................................................................................

58

-5-

Front

Panel

Control!

Panel

(A)

¿Si

^ H F

( ¿ Z

-6-

BASIC

OPERATION

Explained

on

the

following

pages

are:

•

Basic

operation

of

Recording

and

Playback

•

Method

of

Cueing

•

Method

for

Spot

Erasing

1.

NAMES

AND

FUNCTIONS

OF

CONTROLS

Front

Panel,

Control

Panel

‘

Bracketed

words

are

printed

descriptions

of

Panel

controls.

However,

each

switch,

button,

display,

etc.

will

be

boldfaced

in

the

text.

Example:

(By

pressing

the

PLAY

button...,).

0

Reel

Clamp

Secures

the

tape

reel

oh

the

spindle.

Lock

firmly

by

CW

(clock-wise)

rotation.

Be

sure

to

lock

the

clamp

when

loading

the

reel.

0

[POWER]

LED

Will

be

lit

when

POWER

is

switched

on.

•

[RECORD]

LED

Lights

when

recording.

0

[READY]

LED

Will

be

lit

when

the

RECORD

and

PLAY

button

are

simultaneously

pressed,

and

there

are

no

tracks

in

record

ready

status.

0

STOP

[BJButton

This

button

is

basically

the

same

as

the

STOP

button

on

the

controller

with

some

added

functions.

«■

Please

refer

to

page

(42).

0

PLAY

[►]

Button

Functions

the

same

as

the

PLAY

button

on

the

controller.

O

REWIND

[

«

]

Button

When

this

button

is

pressed,

high

speed

winding

will

start.

If

pressed

and

held,

the

G24S/G16S

wilf

rewind

outside

the

effective

zone

limit.

0

FAST

FORWARD

[

►►

]

Button

When

this

button

is

pressed,

high

speed

winding

will

start.

If

pressed

and

held,

it

will

fast

forward

outside

the

zone

limit.

"

Please

refer

to

page

(33)

for

detail

of

the

zone

limit.

0

Tape

Time

Display

The

present

time

of

the

tape

is

thus

displayed.

®

Memory

Display

Displays

time

data

in

the

memory

and

time

data

while

editing.

The

set

values

of

various

parameters,

etc.

are

indicated

here.

0

Input

Monitor

[INPUT

MON]

Switch/LED

This

switch

is

used

to

enter

the

"all

input"

monitor

mode

(all

tracks

in

input

monitor

mode).

The

INPUT

MON

LED

will

fight.

Indication

will

change

in

accordance

with

the

selected

monitor

mode

of

the

recorder.

t

Refer

to

page

(30)

for

further

information.

1.

Extinguished:

All

tracks

will

be

in

tape

monitor

(playback

signal

of

that

track

is

OUTPUT).

2.

Slow

Blink:

Individual

input

monitor

.

3.

Fast

Blink:

Individual

input

monitor

2.

4.

Lighted:

All

tracks

are

in

input

monitor

(Signal

input

to

that

track

is

OUTPUT}.

Refer

to

"Function

of

[RCLJ

-»[?]

”

for

details

on

individual

Input

monitors

1

and

2.

-7-

©

FAST

FORWARD

[F

FWD]

Button/LED

There

are

two

speeds

in

fast

forward.

While

holding

Ihrs

button

down,

the

tape

will

run

tn

fast

forward

at

low

speed.

Cueing

(fast

forwarding

while

monitoring

the

sound),

can

be

done

by

simultaneously

pressing

the

PLAY

button,

while

keeping

this

button

pressed.

To

cancel

cueing,

repeat

this

process,

or

press

either

the

STOP

button,

or

PLAY

button.

The

LED

will

light

when

the

tape

is

winding

in

either

fast

forward

speed.

©

REWIND

[RWD]

Button/LED

Functions

the

same

as

the

F

FWD

button.

Rewinding

at

high

speed,

low

speed,

cueing,

etc.

is

the

same.

The

RWD

LED

is

lit

when

the

tape

is

rewinding

in

either

speed.

®

PLAY

[PLAY]

Button/LED

This

button

is

pressed

for

recording

(together

with

the

RECORD

button)

and

playback.

The

LED

is

lit

when

the

tape

is

in

play

and

blinks

during

cueing

mode.

©

STOP

[STOP]

Button/LED

This

button

is

pressed

to

cancel

or

stop

modes

such

as

play,

record,

etc.

If

this

button

is

pressed

longer

than

0.5

seconds,

the

transport

drive

mechanism

will

be

cancelled.

Press

it

again

and

the

drive

mechanism

enters

the

standby

mode,

ready

to

enter

the

If

the

PLAY

button

is

pressed

when

the

drive

mechanism

is

in

the

cancelled

state,

it

will

momentarily

enter

standby,

then

enter

the

play

mode.

If

the

STOP

button

is

pressed

while

pressing

the

PLAY

button

during

the

recording

mode,

tracks

in

the

recording

mode

will

punch-out.

The

drive

mechanism

state

is

indicated

by

the

three

LED

patterns

shown

below:

1.

Fast

Blink:

Drive

mechanism

is

cancelled.

2.

Lighted:

Standby.

3.

Slow

Blink:

Entered

in

the

cueing

mode.

CAUTION:

Do

not

shut

the

power

off

while

driving

the

cam.

©

[RECORD]

Button/LED

When

this

button

and

the

PLAY

button

are

pressed

simultaneously,

any

tracks

previously

in

record

ready

status

will

enter

the

recording

mode.

If

this

button

is

pressed

simultaneously

with

the

PLAY

button

during

the

playback

mode,

tracks

in

record

ready

status

will

punch-in.

Tracks

in

record

ready

status

can

be

switched

between

individual

input

monitor

(1

or

2)

mode

and

tape

monitor

mode

with

each

pressing

of

the

RECORD

button.

RECORD

LED

is

lit

when

the

G24S/G16S

is

running

in

the

record

mode.

When

ERASE

ON

is

lit,

this

LED

will

also

be

lit.

Please

refer

to

“

Function

of

[RCL]

->

[?]

for

details

of

individual

input

monitors

1

and

2.

©

[READY]

LED

This

will

light

when

the

RECORD

and

PLAY

buttons

are

simultaneously

pressed,

and

all

the

tracks

are

in

safe

status.

©

Noise

Reduction

Off

[NR

OFF]

LED

The

LED

will

change

in

accordance

with

the

setting

of

the

rear

panel

DOLBY

NR

switch

®.

L

LED

is

OFF:

All

Tracks

NR/ON

2.

Slow

Blink:

All

Tracks

NR/OFF

3.

Fast

Biink:

Track

16

only

NR/OFF

©

Spot

Erase

[SPOT

ERASE]

LED

This

function

is

the

same

as

the

©

SPOT

ERASE

LED.

®

Safe/Ready

[SAFE/RDY]

Key

This

key

is

pressed

for

selecting

tracks

to

be

entered

into

record

ready

status

using

the

numerical

keypad.

This

key

allows

you

to

enter

a

multiple

number

of

tracks

into

record

ready

status.

®

Plus

10

[+10]

Key

This

is

used

for

selecting

tracks

10

thru

24

(1

6J

The

10th

digit

is

entered

by

this

key.

This

key

is

also

used

to

set

tape

base

thickness.

Please

refer

to

page

(35)

for

further

Information.

-8-

•

Minus/Preroll

[-/PREROLL]

Key

This

key

is

used

when

selecting

multiple

recording

tracks

with

the

numerical

keypad

for

record

ready

status

(speci



fying

the

range)

or

for

setting

preroll

time.

w

Refer

to

page

(17)

for

further

information.

•

Clear

[CLR]

Key

This

key

is

used

to

clear

various

parameter

values

and

exit

from

the

various

modes

set.

In

addition,

use

this

key

to

clear

the

display.

®

Numerical

Keypad

(0

-

9)

The

numerical

keypad

is

used

mainly

in

selecting

recording

tracks,

for

input

of

time

values

and

value

setups

of

various

parameters.

9

[SAFE/RDY]

Selectors

For

selecting

the

tracks

to

be

entered

into

record

ready

status.

The

tracks

selected

can

be

changed

to

input

monitor,

by

pressing

the

RECORD

button

(the

signal

which

is

being

input

to

this

track

is

directly

fed

to

the

output).

9

[SAFE/RDY]

LED

Tracks

in

record

ready

status

are

indicated

by

alternating

red

and

green

lights.

When

the

RECORD

and

PLAY

buttons

are

simultaneously

pressed

to

enter

the

recording

mode,

this

LED

will

be

red.

The

LED

will

be

green

in

the

SAFE

mode.

9

Bargraph

Level

Meters

These

indicate

the

input/output

(recording/ptayback)

level

of

each

track.

There

are

four

different

meter

display

modes

(NORMAL,

FARM,

TEMP,

or

CAL).

“

■

Refer

to

page

(29)

for

further

information.

9

[POWER]

Switch

The

ON/OFF

switch

for

power

to

the

recorder.

9

[ERASE

ON]

Button/LED

Press

this

button

to

engage

spot

erasing;

the

LED

will

light.

9

[SPOT

ERASE]

Button/LED

Press

this

button

to

enter

the

spot

erase

mode.

The

LED

will

blink.

nr

Please

refer

to

page

(20).

9

[EDIT]

Button/LED

Press

this

button

to

enter

the

cueing

mode;

the

LED

will

light.

9

Cueing

Dial

This

is

used

to

search

the

tape

when

in

the

cueing

mode.

n-

Refer

to

page

(19)

for

further

information.

-9-

Control

Panel

(B)

iiiiiiiiiiiiiiimiiiiiHS

noons

®

a

•&

h

-10-

Control

Panel

(B)

•

Meter

[METER]

Button

The

dot

remaining

on

the

METER

(any

dot

that

Is

peak

held

due

to

permanent

mode,

of

the

METER

display)

is

cleared

when

the

METER

button

is

pressed.

The

meter

display

mode

will

switch

to

normal

mode

as

long

as

this

button

is

held

down.

By

releasing

the

button,

it

will

return

to

the

previously

set

mode.

Refer

to

page

(28)

for

further

information.

©

Zone

Limit

Button/LED

This

button

is

pressed

to

initiate

the

zone

limit

function.

The

ZONE

LIMIT

LED

will

light

or

blink

indicating

the

status

of

any

zone

limit

functions.

This

LED

is

lit

or

blinking

when

the

ZONE

LIMIT

button

is

pressed

and

the

zone

limit

is

functioning.

1.

Lit:

Tape

present

position

is

within

the

zone

stored

in

the

memory.

2.

Blinking:

Tape

present

position

is

outside

We

zone

stored

in

the

memory.

3.

Extinguished:

Zone

limit

is

not

functioning.

This

function

is

cancelled

by

pressing

ZONE

LIMIT

again.

Refer

to

"Function

of

[RCL]->

[?]"

for

setup

of

the

zone

range.

9

Reset

[RESET]

Button

_

_ __ __

The

TAPE

TIME

display

(upper

side

display)

is

reset

to

'

"

when

this

button

is

pressed.

All

time

data

in

the

memory

will

be

automatically

shifted.

©

Pitch

Control

[PITCH]

Knob

This

knob

is

used

to

change

the

tape

speed.

The

variable

range

is

±12%.

©

Pitch

Control

[PITCH]

Button/LED

This

button

is

pressed

to

initiate

the

pitch

control

function.

The

PITCH

LED

will

blink,

and

the

changed

value

of

We

tape

speed

will

be

shown

on

the

MEMORY

display.

■«-

Refer

to

page

(28)

for

further

information.

1.

Blinking:

Pitch

control

is

in

operation.

2.

Extinguished:

Pitch

control

is

cancelled

(tape

will

run

at

standard

speed

regardless

of

the

setting

of

the

control

knob).

©

Panel

Lock

Release

Knob

The

lock

that

fixes

the

control

panel

in

an

upright

position

is

released

by

pressing

this

knob.

"

Refer

to

page

(22)

for

further

information.

©

Auto

Play

[AUTO

PLAY]

Key/LED

This

key

is

pressed

to

initiate

the

auto

play

function.

Upon

completing

the

locate

function,

(automatic

locating

to

a

specified

position)

the

play

mode

will

be

entered

automatically.

AUTO

PLAY

LED

will

light.

Pressing

this

key

again

cancels

the

auto

play

function.

The

remaining

time

from

the

tape

’

s

present

position

to

the

end

of

the

zone

can

be

shown

on

the

MEMORY

Display

by

using

this

key

and

the

RCL

key.

•r

Refer

to

“

Function

of

[RCL]

-+

[?]

”

for

details.

Recording

efficiency

can

be

improved

by

use

of

this

cue

memory.

For

example,

when

locating

is

to

be

done,

it

would

be

a

tedious

job

to

enter

each

locate

point

wiW

the

numerical

keypad.

It

is

much

easier

if

data

is

registered

in

this

cue

memory

for

later

recalling

in

one

simple

process.

This

RCL

->

n

is

provided

mainly

for

the

above

mentioned

operation.

For

the

purpose

of

the

above

operation

the

time

data

must

be

registered

in

the

desired

cue

memory.

To

do

so,

the

CLR

key,

STO

key,

([•

]

key),

and

numerical

keypad

are

used.

The

method

for

using

these

keys

is

also

applicable

to

registering

in

memories

other

than

the

cue

memory.

®

Auto

Return

Key/[AUTO

RTN]

LED

Press

this

key

to

activate

the

auto

return

function.

Auto

return

is

organized

between

two

time

points.

When

the

AUTO

RTN

key

is

pressed,

the

LED

will

light

If

the

auto

return

memory

is

incorrectly

registered

(zero

time

width,

etc.),

the

LED

will

blink

to

warn

of

this

discrepancy.

When

inside

the

two

time

points

registered

in

the

auto

return

memory,

upon

reaching

the

end

of

the

start

point

of

RWD,

We

G24S/G16S

will

automatically

rewind

to

the

objective

point

and

stop

there.

If

this

key

is

pressed

again,

the

auto

return

mode

will

be

cancelled.

Refer

to

"Function

of

[RCL]

-»[?]"

for

the

method

of

registering

the

zone

in

the

auto

return

memory.

-11

-

©

Locate

0

[LOCATE

0]

Key/LED

When

this

key

is

pressed,

the

G24S/G16S

will

automatically

rewind

or

fast

forward

to

the

specified

zero

location

and

stop.

At

this

zero

point,

the

tape

time

display

will

be

"

^ DCKCHiZ

•

The

LED

will

light

when

using

this

function.

©

Locate

[LOCATE]

Key/LED

This

key

is

pressed

to

automatically

rewind

or

fast

forward

the

transport.

The

tape

will

stop

at

the

locate

point

pres



ently

entered

in

the

locate

memory.

The

LED

will

light.

re

Refer

to

page

(32)

for

further

informatron.

©

Plus/Offset

[+/OFFSET]

Key

This

key

is

used

to

change

parameters

while

editing

time

values

in

the

trim

mode.

OFFSET

is

a

function

which

is

effective

only

when

the

optional

synchronizer

card

is

installed.

Refer

to

the

item

below

for

further

information.

©

Trim

[TRIM]

Key/LED

This

key

is

pressed

to

enter

the

trim

mode.

In

the

trim

mode,

the

various

time

values

can

be

edited

(continuous

increase/decrease)

by

using

the

^/OFFSET

key

and

the

-/PREROLL

key.

The

G24S/G16S

will

exit

from

the

trim

mode

and

enter

the

normal

mode

when

pressed

again.

The

LED

will

light

when

the

trim

mode

is

entered

by

pressing

the

TRIM

key.

©

Hold

[HOLD]

Key

When

this

key

is

pressed

the

tapes

present

position

value,

indicated

on

the

TAPE

TIME

display

(upper

side

display),

wilt

be

copied

on

the

MEMORY

display

(lower

side

display).

This

function

Is

convenient

when

registering

cue

memory

for

locating

while

listening

to

the

tape.

The

total

time

in

the

zone

can

be

indicated

on

the

MEMORY

Display

by

using

this

key

and

the

RCL

key.

re

Refer

to

"Function

of

[RCL]

->

[?]

”

for

details.

©

Recall

[RCL]

Key/LED

This

key

is

used

for

checking

time

data

and

for

setting

modes

displayed

on

the

MEMORY

display

(lower

side

display).

The

LED

will

light

when

the

RCL

key

is

pressed.

Pressing

any

other

key

will

turn

off

Vie

LED

and

the

MEMORY

display

will

indicate

the

current

status

of

time

data

and

mode

setups

presently

stored

in

the

memory.

®

Period

[

*

]

Key

This

key

is

used

to

move

the

cursor

while

editing

time

data

and

changing

various

parameter

values.

re

Refer

to

page

(31)

for

further

Information.

©

Store

[STO]

Key/LED

This

key

is

pressed

to

register

various

data

in

the

memory.

The

STO

key

is

also

used

for

changing

the

sort

mode

and

direct

locate

mode.

The

LED

will

light

when

the

STO

button

is

pressed.

Indicating

the

current

status

of

data

being

stored

in

the

memory,

and

will

blink

when

executing

the

direct

locate

mode.Press

the

STO

key

again

and

the

LED

will

turn

off,

indicating

that

you

have

exited

this

mode.

Data

registered

will

be

battery

backed

up

even

after

the

main

power

has

been

switched

OFF.

re

Refer

to

page

(47)

for

further

information.

©

Option

Key

Area

(OPTION

keys)

These

keys

and

LED

’

s

become

effective

when

the

optional

synchronizer

card,

model

8330,

is

installed.

-12-

Rear

Panel

-13-

Rear

Panel

®

[PUNCH-IN/OUT]

Jack

For

plugging

in

a

Fostex

model

8051

footswitch

(optional).

w

Refer

to

page

(19)

for

further

Information.

9

[PLAY/LOCATE]

Jack

For

plugging

in

a

Fostex

model

8051

footswitch

(optional).

Stepping

on

the

foot

switch,

when

the

G24S/G16S

is

in

the

stop

mode,

will

automatically

enter

it

into

the

play

mode.

When

in

other

than

the

stop

mode,

it

will

automatically

enter

locate

operation.

If

the

foot

switch

is

stepped

on

during

locate

operation,

it

will

enter

play

mode

after

completing

the

locate

operation.

Note

Using

two

footswitches

in

9

and

®

is

very

convenient

for

rehearsal.

9

[CONTROLLER]

Connection

Terminal

The

controller

unit,

normally

installed

on

the

front

panel,

can

be

removed

and

be

remote

controlled

with

the

optional

extension

cable.

'r

Refer

to

page

(23)

for

further

Information.

9

[CONTROLLER]

Unit

Selection

Switch

(FRONT/REAR)

FRONT:

When

the

controller

is

connected

to

the

front

panel.

REAR:

When

the

controller

is

connected

to

the

rear

CONTROLLER

connection

terminal.

This

is

switched

depend



ing

on

how

the

controller

is

connected.

This

button,

however,

controls

only

for

METER,

PITCH

knob,

and

PITCH

button.

All

other

functions

will

be

effective

regardless

of

which

side

the

controller

is

connected

to.

9

[ACCESSORY

1]

Terminal

This

terminal

is

for

connecting

an

optional

Fostex

model

4030

synchronizer.

This

is

NOT

the

optional

internal

synchronizing

card.

9

[AC

IN]

Terminal

The

power

cord

is

connected

to

this

terminal.

9

[DOLBY

NR]

Switch

ON/OFF

switch

for

the

Dolby

C

noise

reduction

system.

Setting

selections

are:

ON/OFF/CH16

OFF.

The

setting

of

this

switch

is

indicated

by

NR

OFF

LED

on

the

control

panel.

1.

ON:

Ail

tracks

ON.

2,

OFF:

All

tracks

OFF.

3,

16CH

OFF:

Track

16

only

OFF.

Note

This

item

is

explained

in

greater

detail

in

©.

9

[OUTPUT]

Jacks

Audio

output

jacks

for

Tracks

1

-

24(16)

(unbalanced/RCA

jacks).

9

[INPUT]

Jacks

Input

jacks

to

tracks

1

-

24(16)

(unbalanced/RCA

jacks).

The

following

four

functions

are

for

G16S

only

and

are

not

applicable

to

G24S.

A

External

NR

connecter

(EXT

NR)

B

Intemal/extemal

NR

selecting

switch

(INT/EXT)

The

above

are

reserved

for

future

use.

Be

sure

to

always

set

the

INT/EXT

NR

switch

to

INT.

C

[16

OUT]

Jack

This

is

connected

in

parallel

with

OUTPUT

16

(unbalanced/RCA

pinjack).

This

is

convenient

when

playing

back

the

time

code

on

track

16

and

simultaneously

sending

the

code

to

other

equipment.

D

[LOOP

OUT]

16

IN

Jack

This

is

connected

in

parallel

with

INPUT

16

(unbalanced/RCA

jack).

Use

this

jack

when

outputting

to

equipment

other

than

a

G16S.

The

time

code

generator

output

is

connected

to

INPUT

16.

-14-

2.

CONNECTIONS

The

following

is

one

example

of

possible

connections

for

the

G24S/G 6S.

a)

Connection

of

Foot

Switches

c)

Connection

of

Mixer

Connect

the

optional

Fostex

805

foot

switches

to

the

PUNCH-IN/OUT

jack

or

the

PLAY/

LOCATE

jack,

respectively,

in

the

rear

panel.

b)

Connection

of

Patch

Bay

Connect

GROUP

OUT

-

8(4)

of

the

mixer

with

the

optional

Fostex

patch

bays

30 ,

30 2,

or

30 3.

Then,

using

a

multi-cable,

wire

into

INPUTS

-

2(8)

of

the

G24S/G 6S.

In

Wie

case

of

using

an

2(8)

group

out

mixer,

a

patch

bay

is

not

necessary.

Wire

OUTPUTS

-

24(

-

6)

of

the

G24S(G 6S)

to

TAPE

IN

of

the

mixer;

use

three(two)

8-channel

cables

accordingly.

NOTE

Multi-cables

are

optional.

There

are

4

or

8

channel

color

cables

available.

(MODEL

804 -8048)

d)

Connection

of

Controller

If

you

wish

to

locate

the

controller

at

your

con



sole,

remove

the

controller

from

the

front

panel

of

the

G24S/G 6S.

Using

the

optional

exten



sion

cable,

(Fostex

8546)

connect

the

control



ler

to

Wie

CONTROLLER

terminal

in

the

rear

panel.

Then

set

the

FRONT/REAR

switch

of

NOTE

Each

of

the

INPUTS

3

-

24(9

- 6)

of

the

G24S/G 6S

are

connected

in

parallel

with

- 5-

3.

PREPARATIONS

FOR

RECORDING

The

Recording

tape

The

bias

and

equalization

of

the

G24S/G 6S

is

adjusted

for

Ampex

456

or

equivalent

tape

as

shipped

from

the

plant.

The

amplifier

must

be

readjusted

if

other

types

of

tape

are

to

be

used.

Approximately

30

minutes

of

record/playback

are

possible

with

Wie

G24S/G 6S

on

a

ten

inch

reel

of

50

micron

tape

(Ampex

456)

at

38cm/sec.

tape

speed.

Loading

the

tape

To

load

the

tape,

first

attach

an

empty

reel

to

the

right

side

reel

spindle,

and

the

reel

containing

tape

to

the

left

side.

Thread

the

tape

as

shown

below,

making

sure

the

tension

arms

are

up.

Lightly

take

up

the

slack

by

winding

the

reels.

If

the

tape

is

slack

the

transport

will

not

operate.

NOTE

If

you

are

using

a

“

master

winding"

technique

(also

known

as

“

tails

out"),

Wie

tape

will

be

loaded

in

the

opposite

manner

from

the

above

method.

tension

arm

- 6-

4.

RECORDING

1)

Pre-check

Recording

Levels

and

Sound

uality.

The

G24S/G 6S

is

an

extremely

high

quality

machine

but

it

will

record

only

those

signals

that

are

fed

into

it.

A

thorough

understanding

of

signal

routing

through

the

microphones,

mixers,

patch

bays

etc.

is

important

if

the

G24S/G 6S

is

to

be

utilized

to

its

full

capacity.

(a)

Set

any

track(s)

to

be

recorded

to

record

ready

status.

There

are

two

methods

for

entering

record

ready

status.

•

Methodi:

Using

the

SAFE/RDY

Selector

Select

the

track

you

wish

to

check

by

directly

pressing

the

SAFE/RDY

selector

®.

The

SAFE/RDY

LED

®

will

alternately

flash

red

and

green.

•

Method

2:

Using

the

SAFE/RDY

Key

and

Numerical

Keypad

When

the

SAFE/RDY

key

®

is

pressed,

“

t

"

(first

letter

of

“

track")

will

be

shown

in

the

MEMORY

Display.

Tracks

are

specified

using

thru

9

of

the

nu



merical

keypad,

and

the

+ 0

key.

In

this

proc



ess,

selection

is

not

done

by

pressing

each

key.

The

-/PREROLL

key

®

must

be

used

to

specify

tracks

as

shown

in

the

following:

Example

:

To

specify

track

:

Press

in

order

,

-/PREROLL

key,

.

Example

2:

To

simultaneously

specify

tracks

5

~

8:

Press

in

order

5,

-/PRE



ROLL

key,

8.

Example

3:

To

simultaneously

specify

tracks

~

6:

Press

in

order

,

-/PRE



ROLL

key,

+ 0

key,

6.

Example

4:

To

simultaneously

specify

tracks

8

-

22:

Press

in

order

+ 0

key,

8,

-/PREROLL,

+ 0

key,

+ 0

key,

2.

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Numbers

keyed

in

on

the

MEMORY

display

will

be

shown

together

with

-

The

CLR

key

®

is

pressed

to

clear

the

machine

of

any

tracks

selected

to

ready

ON.

In

this

proc



ess,

all

tracks

will

simultaneously

go

to

ready

OFF.

If

a

particular

track

must

be

turned

OFF,

press

the

SAFE/RDY

selector

of

that

track.

-

The

SAFE/RDY

LED

of

any

track

selected

for

record

ready

status

will

alternately

blink

red

and

green.

After

selecting

a

track,

press

the

SAFE/RDY

key

again

to

exit

from

this

mode.

In

the

case

of

example

3,

the

"t

-

6"

indication

on

the

MEMORY

display

will

go

OFF

and

return

to

the

original

state.

- 7-

(b)

Press

the

RECORD

button

©

to

enter

input

monitor

status.

The

LED

of

INPUT

MON

will

blink.

Check

the

recording

level

and

sound

quality

of

the

source.

(c)

After

checking

all

of

the

recording

level(s),

press

the

RECORD

button

again

to

cancel

input

monitor

status.

The

INPUT

MON

LED

will

go

OFF.

2)

Recording/Playback

(a)

Start

the

recording

by

pressing

the

RECORD

and

PLAY

buttons

simultaneously.

The

RECORD

LED

and

PLAY

LED

will

light

as

well

as

the

red

SAFE/RDY

LED

of

the

track(s)

in

record

ready

status.

(b)

Upon

completing

the

recording,

press

the

STOP

button.

The

STOP

LED

will

light

and

the

SAFE/RDY

LED

will

resume

flashing

red

and

green

(alternately).

(c)

Turn

OFF

the

SAFE/RDY

selector

of

the

track(s)

recorded

on.

(d)

Playback

the

recording

by

pressing

the

PLAY

button

to

check

the

sound

for

satisfactory

results.

3)

Overdubbing

is

recording

other

parts

while

monitoring

the

track(s)

already

recorded.

(a)

Select

the

track(s)

you

wish

to

overdub,

and

set

the

recording

level(s)

etc.,

in

the

same

way

as

in

( )

on

the

(b)To

rehearse

while

listening

to

the

already

recorded

tracks

before

overdubbing,

press

the

PLAY

button

only,

while

in

individual

input

monitor

status.

(c)

To

overdub

(take),

press

the

RECORD

button,

and

PLAY

button

simultaneously

after

entering

record

ready

status

(any

track(s)

entered

in

recording

status

will

go

into

input

monitor

status).

4)

Punch-in/Out

Punch-in/out

is

the

process

of

re-recording

a

faulty

section

of

previously

recorded

tape.

The

starting

point

of

the

recording

is

called

punch-in,

and

the

ending

point,

punch-out.

Using

Ihe

automatic

functions,

auto

play,

auto

return,

etc.

is

very

convenient.

Rehearsal

(a)

Advance

the

tape

to

a

point

slightly

before

the

punch-in

point,

and

enter

the

track(s)

to

record

ready

status.

(b)

Press

the

PLAY

button

to

enter

all

tracks

into

the

tape

monitor

mode.

(c)

Press

the

RECORD

button

when

the

tape

arrives

at

the

punch-in

point

(INPUT

MON

LED

will

blink).

Only

the

track(s)

set

in

record

ready

status

will

switch

from

tape

monitor

to

input

monitor

mode.

This

allows

the

sounds

in

rehearsal

performance

to

be

heard.

(d)

Press

the

RECORD

button

again

when

the

tape

reaches

the

punch-out

point.

Monitoring

of

the

track(s)

will

then

switch

back

from

input

monitor

to

tape

monitor.

At

this

point

the

INPUT

MON

will

turn

off.

(e)

After

completing

the

rehearsal,

press

the

STOP

button.

- 8-

Fostex G24S User manual

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