280B Series

Scully 280B Series User Manual

Scully 280B Series

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Model 280B

B.

Mount

the

electronics

assembly in the

rack

below

the

tape

transport

using

the

mounting

hardware

supplied. In

units

which

have

two

electronics

assemblies,

mount

them

below

the

transport

with

the

channels

1

and

2 assembly

above

the

channels 3 and 4 assembly.

In

a four-

amplifier

system,

the

regulator,

bias oscillator,

and

amplifier

PWA is

mounted

in

the

channels

1 and 2 assembly.

The

bias amplifier

PW

A is

mounted

in

the

channels

3 and 4 assembly.

NOTE

The

tape

transport

will

not

operate

unless

it

is

connected

to

the

electronics

assembly.

2.5

CABLING

INTERCOI\INECTIOI\JS

Interconnect

the

tape

transport

and

the

electronics

assemblies as

shown

in Figure 2-2,

and

detailed

below:

A

Connect

cable

W1

from

the

head bridge

sockets

J112,

J113,

and

J114

to

head

input

socket

J125

on

the

rear

of

the

electronics

assembly.

Connect

the

cable

conne

c

tor

marked

P125A

to

J125A

on

the

upper

electronics

assembly,

and

the

connector

marked

P125B

to

J125B

on

the

second

electronics

assembly,

etc.

B.

Connect

cable

W2

between

electronics

power

connector

J109

on

the

transport

control

as-

sembly and

the

power

input

connector

J126

on

the

upper

electronics

assembly.

C.

If

two

or

more

electronics

assemblies

are

used,

connect

cable

W3

between

the

J123

power

transfer

connector

on

all

electronics

assemblies.

D.

If

the

remote

control

assembly is

used,

con-

nect

its cable

to

remote

socket

J111

on

the

transport

control

chassis assembly.

Installation

E.

Connect

cable

W4

between

ac

power

plug

J201

on

the

power

supply

and

a

115-120

volt,

50(60

Hz

power

source.

If

the

recorder

is

operated

at

a

different

line voltage,

the

jumper

plug

on

the

power

transformer

input

winding,

Figure

2-3

and

Table

2-1,

should

be

changed

for

optimum

performance.

Assure

proper

system

grounding

and

completely

check

all cables

before

applying

power.

F. A female

XLR

type

audio

connector

is

required

to

connect

the

output

of

each amplifier. These

connectors

are

plugged

into

LINE

OUT

recep-

tacles

J120

and

J118

provided

on

the

rear

of

the

electronics

assembly.

G.

A male

XLR

type

audio

connector

is

required

to

connect

the

input

to

the

amplifier.

These

connectors

are plugged

into

LINE IN recep-

tacles

J119

and

J117

located

on

the

rear

of

the

electronics

assembly.

Check

that

the

switch

(Figure7-7),located

on

the

power

supply,

is

in

the

correct

position

for

the

tape

width

being used.

H.

Check

that

dummy

plug

P110

is installed in

inverter

socket

J110

on

the

transport

assembly.

Table

2-1.

Power

Supply

Jumper

VOLTAGE

(Vac)

240

220

125

105

115

CONNECTION

PI

to

E8

PI

to

E10

PI

to

E12

PI

to

E14

PI

to

E23

2-3

Table of Contents

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Scully 280B Series Specifications

General

Brand	Scully
Model	280B Series
Category	Turntable
Language	English