Zenith J584W - Page 40

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FIGURE

31

-

CHASSIS

AND

TAPE

UNIT

MOUNTING

SCREWS

CABINET

TOP

REMOVAL

(See

Figure

29)

In

order

to

gain

access

to

the

total

chassis

and

tape

areas

(or

to

remove

either),

it

is

necessary

to

remove

the

cabinet

top

as

follows.

1.

With

power

disconnected,

and

dust

cover

removed,

place

set

on

its

side

on

top

of

a

soft

clean

surface.

2.

Remove

five

(5)

screws

("J"

in

Figure

29)

located

in

wells

in

cabinet

bottom.

3.

With

screws

removed,

place

set

in

upright

position.

4.

Slowly

lift

cabinet

top

from

set,

reach

inside

and

dis



connect

AC

and

audio

cables

from

record

changer.

5.

Move

cabinet

top,

with

record

changer

still

mounted

to

cabinet

top,

away

from

set.

ESCUTCHEON

REMOVAL

(See

Figure

30)

If

either

the

audio

chassis

assembly

or

the

tape

unit

will

be

removed,

it

is

first

necessary

to

remove

the

escutcheon.

Proceed

as

follows:

1.

Remove

cabinet

top

as

above.

2.

With

set

in

upright

position,

remove

Tuning,

Function,

Tone,

Balance

and

Loudness

Knobs,

and

also

the

head



phone

jack

nut.

3.

Remove

six

(6)

screws

("K"

in

Figure

30)

including

three

(3)

from

back

side

of

bracket.

4.

Pull

escutcheon

forward

to

remove.

WIRE-WRAP

CONNECTIONS

A

method

of

interconnection,

relatively

new

to

consumer

products,

has

been

used

in

the

telephone

industry

for

some

years.

Cables

or

wires

between

chassis

and/or

a

tape

unit

may

be

soldered

on

one

end

but

wire-wrapped

on

the

other

(or

wire-wrapped

at

both

ends).

When

the

chassis

are

being

inter



connected,

a

special

power

tool

that

looks

like

a

drill

is

used.

The

stripped

end

of

a

wire

is

inserted

into

one

hole

in

the

bit.

The

tool

is

then

placed

over

the

terminal

to

which

connection

is

to

be

made

(the

terminal

will

fit

into

a

second

hole

in

the

bit).

Power

is

applied

to

the

tool

and

the

wire

wraps

tightly

around

(and

bites

into)

the

terminal,

resulting

in

a

firm,

solid

connection.

If

it

is

necessary

to

unwrap

one

or

more

of

these

eflHMfitiftRS,

it

is

PWdMWended

that

ike

stripped

lead

be

rewrapped

as

you

would

normally

do,

then

solder

the

connec



tion.

This

repair

method

is

recommended

because:

1.

The

wire

may

lose

it's

strength

from

the

wrapping,

un



wrapping

and

rewrapping,

resulting

in

a

connection

of

questionable

reliability.

38