280B Series

Scully 280B Series User Manual

Scully 280B Series

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Model 280B

Functional

Checks

and

Adjustments

SECTION 5

FUNCTIONAL CHECKS AND

ADJUSTMENTS

5.1

GENERAL

5.2 Functional Check

The

following is

an

abbreviated

operator

test

of

the

Model 280B.

If

the

machine fails

to

perfonn

pro-

perly

on

any

of

the

checks,

refer

to

Section

7

for

more detailed

test

procedures

to

be

perfonned

by

a

qualified service engineer.

A. Turn

power

on

and

check

that

the

STOP push-

button

and vu

meter

lamps are lighted.

B.

Load

a reel

of

tape

of

the

type

normally used

on

the

equipment.

As

the

tape

break

ann

moves

into

a vertical

position,

check

that

the

capstan

starts

to

rotate.

C.

Press

the

START

pushbutton.

Check

that

the

tape

moves in a

forward

direction

and

that

the

START

lamp

lights.

D. Press

the

STOP

pushbutton

and

check

that

tape

motion

stops

and

the

STOP lamp lights.

E. Press

the

FAST

....

pushbutton

and

check

that

the

FAST

.....

lamp lights

and

the

tape

moves

forward

in a fast wind.

F.

Press the

~

FAST

pushbutton.

Check

that

the

.....

FAST

lamp

lights and

the

tape

moves in a

fast rewind.

G. Press

the

STOP

pushbutton.

H.

Input

a signal (such as

1000

Hz)

to

the

ma-

chine.

Set

the

MONITOR switch

to

RECORD

and adjust

the

RECORD

LEVEL

control

for

the

desired level

on

the

vu meter.

Set

the

FUNCTION

SELECTOR

switch

to

RECORD

and

set

the

MONITOR

switch

to

PLAYBACK.

Press

the

START

and

then

the

RECORD

pushbuttons.

Check

that

the

START

and

RECORD

lamps

light.

Monitor

the

recorded

signal

on

the

vu

meter

and

external

amplifier

speakers and check

that

playback

is

satisfac-

tory.

Repeat

for

each channel.

1.

For

multichannel

units

only,

rewind

to

the

beginning

of

the

recorded

signal,

set

the

FUNCTION

SELECTOR

switch

to

SYNC,

press

the

START

pushbutton

and

observe

playback

on

the

vu

meter.

Check

that

SYNC

is

satisfactory.

Repeat

for

each

channel.

5-1/5-2

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Scully 280B Series Specifications

General

Brand	Scully
Model	280B Series
Category	Turntable
Language	English