Tascam TSR-8 - Features and Controls Overview; Rear Panel Controls and Connectors; Front Panel Controls and Indicators

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Features

and

Controls

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25

—REAR

PANEL—

1.

REMOTE

PUNCH

IN/OUT

Jack

This

is

for

connection

of

the

optional

RC-30P

foot-

switch.

Whether

you’re

a

busy

engineer,

producer,

or

a

musician

with

both

hands

on

an

instrument,

there

are

times

when

you

can’t

drop

what

you

are

doing

to

press

RECORD

button.

The

RC-30P

is

the

solution.

It

lets

you

punch-in

and

out

of

Record

with

a

tap

of

your

foot.

2.

ACCESSORY

1

Connector

(37-pin,

D-sub)

It

has

the

inputs/outputs

necessary

for

the

direct

interface

with

the

TASCAM

ES-50

Synchronizer

or

other

SMPTE/EBU

Synchronizers/controllers.

ACCES-

SORY

“1”

is

a

parallel!

port,

as

opposed

to

the

ACCES-

SORY

“2”

connector.

3.

ACCESSORY

2

(SERIAL

I/F)

Connector

(15-pin,

D-sub)

This

is

a

serial

1/O

port

conforming

to

the

RS-232C

standard

for

linking

the

TSR-8

to

an

external

computer,

or

synchronizer

such

as

the

TASCAM

MIDiiZER.

The

dip

switch

adjacent

to

the

connector

is

used

to

select

the

bit

rate

(data

transmission

speed)

as

per

the

diagram

beside

the

switch.

4.

REMOTE

CONTROL

Connector

(8-pin,

DIN)

This

is

for

connection

of

the

optional

RC-

408

remote

control

unit.

With

the

remote

control

unit,

you

can

control

all

tape

motion

from

a

distance

of

up

to

15

ft

(5

m).

5.

INPUT

Jacks

1-8

Each

of

these

RCA

jacks

accepts

a

nominal

input

level

of

-10

dBV

(0.316

V).

The

input

impedance

is

10

kOhms

(unbalanced).

6.

OUTPUT

Jacks

1-8

These

outputs

carry

either

the

tape

signal

of

the

corresponding

track,

or

the

source

(input)

signals,

de-

pending

on

the

position

of

various

front

panel

controls.

See

the

switching

logic

table

on

page

27.

The

TSR-8

has

no

output

level

controls

of

its

own

and

the

output

level

is

the

same

as

the

input

level;

that

is,

-1OdBV

(0.316

V).

The

output

impedance

is

100

Ohms

(unbalanced).

7,

CH8

INPUT

REF

LEVEL

Selector

Switch

Normally,

set

this

switch

to

the

-10

dBV.

(0.316

V)

position

to

match

the

input

reference

level

of

the

re-

maining

channels,

1

—

7.

When

you

record

track

8

with

sync

tones

or

time

codes

you

can

use

the

switch

to

set

for

+4

dBu

(1.23

V)

or

any

level

between

+4

dBu

and

-30

dBV

(0.03

V)

in

pursuant

to

the

sync

tone/code

generator

in

use.

Settings

of

the

switch

have

effect

only

on

track

8.

—FRONT

PANEL—

1.

Reel

Holddown

Knobs

;

These

are

permanently

mounted,

and

are

used

for

the

installation

of

large

hub

10.5-inch

reels.

Clockwise

rotation

of

the

knobs

tightens

the

reels

in

place.

2.

Reel

Tables.

Support

10.5-inch

reels/half-inch

tapes.

Use

the

same

26

size

and

type

of

reels

for

both

the

supply

and

takeup

sides.

3.

Guide

Roller

Correctly

positions

the

tape

along

its

path.

4.

Tension

Arms

;

The

capstan

servo

controls

the

tape

tension

and

motor

torque

through

the

use

of

a

position

sensor

attached

to

the

right

tension

arm.

The

right

tension

arm

is

also

associated

with

a

shut-off

mechanism

that

stops

all

tape

motion

if

the

tape

slackens

or

spills

off

the

reel.

The

left

tension

arm

compensates

for

slight

irregularities

in

the

supply

ree!

in

addition

to

maintaining

even

tape

tension.

5.

Capstan

Shaft

and

Motor

6.

Counter

Roller

;

This

measures

linear

tape

footage,

which

is

converted

into

elapsed

time

from

whatever

zero

point

is

entered.

The

counter

roller

is

associated

with

a

tach

generator

to

provide

information

about

tape

motion

to

external

synchronizers

during

fast

wind

movements.

7.

Pinch

Roller

The

TSR-8's

pinch

roller

is

a

“self-centering”

type

for

maximum

tape

motion

consistency.

A

rubber

coating

on

it

is

of

urethane

for

maximum

resistance

both

to

wearing

and

to

cracking

or

hardening.

8.

POWER

Switch

Controls

AC

power

to

the

TSR-8.

Pressing

POWER

a

second

time

turns

the

machine

off,

and

clears

the

MEMO

1,

MEMO

2,

Punch-in

Rehearsal

(RHSL),

and

AUTO

IN/OUT

memories.

9,

SPEED

MODE

Selector

Switch

This

switch

selects

either

FIX

or

VAR!

mode.

The

setting

of

the

switch

is

defeated

as

soon

as

external

specific

signals

are

fed

into

the

TSR-8

via

it’s

rear

panel

ACCESSORY

1

or

2

connector

in

which

case

the

EXT

LED

will

automatically

turn

on.

FIX:

Locks

tape

speed

to

15.ips

(38

cm/s).

Setting

to

FIX

is

indicated

by

a

green

LED.

VARI:

Switches

tape

speed

control

to

the

PITCH

CONTROL.

“Non

standard”

tape

speeds

can

then

be

used.

Setting

to

VARI

is

indicated

by

a

red

LED.

When

the

TSR-8

capstan

motor

is

under

external

|

contro}

of

a

synchronizer/controller

the

EXT

LED

will

light

steadily

in

yellow.

When

either

the

control

signal

or

9.6

kHz

reference

to

the

TSR-8

is

interrupted,

the

EXT

LED

will

flash

and

the

FIX

LED

will

turn

on

solid,

in-

dicating

that

the

FIX

speed

mode

is

active,

as

summed

up

in

the

table

below.

ACCESSORY

1

ACCESSORY

2

FIX

EXT

(Parallel)

-

(Serial)

LED

|

LED

9.6

Kha

9.6

kre

Off

None

of

the

above

four

signals

is

coming

Solid

Roa

Flash-

Only

one

of

the

four

signals

is

coming

‘ing

On

Off

Either

pair

of

the

signals

(control

and

frequency

reference)

is

coming

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