PERPETUUM EBNER PE 2020 - Pick-up Arm Friction and Noise Troubleshooting

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11

Item

No

Description

Lower

locating

lever

Control

lever

Eccentric,

lower

locating

lever

Turntable

bearing

bracket

Loosen

the

retaining

screws

(64

and

66)

and

move

the

bearing

bracket

as

required

to

ensure

easy

engagement

of

the

turntable

pinion.

Control

lever

cannot

be

moved

to

LIFT

Cause:

Clearance

between

the

lower

locating

lever

(151)

and

the

bent

portion

of

the

control

lever bottom

assembly

(175)

too

small

Remedy:

Adjust

the

eccentric

(A>

at

the

lower

locating

lever,

Position

of

tower

locating

lever

The

clearance

between

the

curved

extension

of

the

lower

locating

lever

(151)

and

the

control

lever

bottom

assembly

can

be

adjusted

by

means

of

the

eccentric

(A)

at

the

left

of

the

pivot.

For

this

pur

pose,

the

control

lever

must

be

in

the

1st

lift

posi

tion.

The

clearance

should

be

between

20

and

40

mils

(0.5

to

1

mm).

Adjusting

tool:

Screwdriver

Switch

operating

lever

In

the

normal

position

of

the

control

cam,

the

lever

(K)

must

clear

the

ON/OFF

switch

about

20

mils

(0.5

mm).

When

the

control

lever

is

moved

to

“START”

or

“LIFT”,

the

red

lever

of

the

ON/OFF

switch

must

be

supported

on

the

backstop.

If

the

starting

lever

(197) is

engaged

with

the

stop

pawl,

the

switching

roller

(176)

must

clear

the

starting

lever

(197)

8

mils

(0.2

mm)

in

any

position

of

the

control

lever.

Adjusting

tool:

Pliers

Pick-up

arm

has

no

friction

Cause:

Insufficient

spring

contact

(Y)

on

pick-up

arm

locator

segment

Remedy:

Adjust

the

friction

spring

(Y)

Pick-up

arm

friction

The

pick-up

arm

friction

amounts

to

15

to

20

p.

when

the

pick-up

arm

s

rafsed.

Bending

the

spring

supports

(Y)

permits

changing

the

position

of

the

spring

with

respect

to

the

pick

up

arm

locator

segment

(YY).

Care

should be

taken

to

see

that

a

clearance

of

0.571”

(14.5

mm>

exists

between

the

lower

edge

of

the

pick-up

arm

locator

segment

(YY)

and

the

chassis

board.

Adjusting

tools:

Pliers,

Force

gauge

0-30

p.

Operating

noise

heard

during

change

cycle

Cause:

Muting

switch

fails

to

make

contact

properly

Remedy:

Adjust

muting

switch

In

playback

position

of

the

record

player,

the

two

shorting

springs

should

clear

the

cçntact

bars

0.020”

(0.5

mm).

Loosen

the

retaining

screws

of

the

mutng

switch

and

turn

the

muting

switch

until

this

clearance

is

obtained.

Adjusting

tool:

Screwdriver

151

175

A