Pioneer PL-560 User manual

c/Manual

Service

motor

QuartzPLL

DIRECT

DRIVE

FULL

AUTOMATIC

TURNTABLE

PL=-560

PIONEER

For

details

operation

the

mechanism

and

electronic

circuitry

the

PL-560,

refer

the

manuals

listed

below.

Operation

mechanism

..............

PL-520

Operating

principle

phono-motor

.....

PL-630

MODEL

PL-560

COMES

FIVE

VERSIONS

DISTINGUISHED

FOLLOWS:

Voltage

Remarks

120V

only

Canada

model

(without

cartridge)

;

120V

only

U.S.A.

model

(without

cartridge)

220V

and

240V

(switchable)

Europe

Oceania

model

(without

cartridge)

110V,

120V,

220V

and

240V

(switchable)

General

export

model

(without

cartridge)

110V,

120V,

220V

and

240V

(switchable)

U.S.

Military

model

(within

cartridge)

This

service

manual

applicable

the

PL-560/KUT,

KCT.

For

servicing

the

other

types

please

refer

the

additional

service

manuals.

CONTENTS

SPECIFICATIONS:

4.4545

uae

aie

eee

teu

FRONT

PANEL

FACILITIES

.............

BS:

PARTS.

LOCATION

beta

cous,

devadce

aac

DISASSEMBLY

dvd

parhtraceck

untae

eadee

MECHANISM

ADJUSTMENT

.............

ELECTRIC

ADJUSTMENTS

..............

EXPLODED

VIEWS

TiV>

“AGADINO:

ahaiglac

Seay

ede

ees

dia.

Bottom

Plate...

ace-tas.e

eee

7.3.

Arm

Base

......

silcths

deathecal

Maat

7A.

Soulb

Parte).

4..0000.

vas

bese

Sas

PACKING:

<o-64

084.0040

Vee

see

tae

SCHEMATIC

DIAGRAM,

P.C.

BOARD

PATTERNS

AND

PARTS

LIST

9.1

Schematic

Diagram

..............205-

9.2

P.C.

Board

Connection

Diagram

........

9.3.

Drive

Control

Assembly

(PWG-017)

......

9.4

Control

Assembly

(PWX-028)

..........

9.5

Oscillator

Assembly

(PWX-022)

........

9.6

Power

Supply

Assembly

............-.

10.

D.D.

MOTOR

EXPLODED

VIEW

...........

SPECIFICATIONS

Motor

and

Turntable

DEWE-

SION

th.

See

alee

aes

Direct-drive

MOO

Rae

aGala

etter

Quartz

PLL

Hall

motor

Turntable

Platter.

320mm

diam.

aluminum

alloy

die-cast

Moment

Inertia...

280kg-cm?

(including

platter

mat)

SHECUS

a5.

ewes

Poe

33-1/3

and

45rpm

Speed

Control

Range.....................2.

-£6%

Wow

and

Flutter...........

Less

than

0.025%

(WRMS)

Signal-to-Noise

Ratio.

........

than

73dB

(DIN-B)

(with

Pioneer

cartridge

model

PC-400)

Rotational

Characteristics

Build-up

Time

......

Within

120°

rotation

33-1/3rpm

Speed

Deviation

.................

Less

than

0.002%

Speed

vs.

Load

Characteristics...

Stable

200

grams

drag

load

Speed

Drift

.......

Less

than

0.00008%/h

33-1/3

rpm

Less

than

0.00003%/

degree

temp.

change

33-1/3rpm

Tonearm

Type........00%

Static-balance

type,

S-shaped

pipe

arm

Pffective

Atm

Length

ics

aed Gis

eke

221mm

Over

han

ooo

aioe

SAA

lola

oat

15.5mm

Usable

Cartridge

Weight.......

(min.)

10g

(max.)

Subfunctions

Full

auto

mechanism

Anti-skating

force

control

Stylus

pressure

direct-readout

counter

weight

PL-560

Cueing

device

Strobe

light

Pitch

indicator

Free

stop

hinges

Semiconductors

ein

oe.

Renita

eee

wae

AMSISUONS

deed

See

aokegote

gigas

e892 dete

teas

OUCS

oo.

aor

Klein

eee

Seek

Fiat

ClCINGO

bse

gins

avert:

Glencwin

Ei:

yee

Accessories

EON

LOR

geet?

Are

cant

Wer

eodca

Sah

obey

sad

DCECW

UMINEY

20e

cat

tay

casts

Seki

Hechinger

Bek

Cartridge

mounting

screws

...........0000

0000s

Cartridge

mounting

NUTS.

a4.6)s

c0ewawe

LER

Cartridge

mounting

washers

..............-00006

Operating

1NStructions

4.04

]

Miscellaneous

Power

Requirements

...............

120V,

60Hz

Power

CONSUMDIION:

503.4

Sete

ewe

12W

Dimensions

...........

440(W)

145(H)

365(D)mm

17-15/16(W)

5-11/16(H)

14-3/8(D)

in.

WING.

sutatat

Sipty

aap

guste

ade ret

10.5kg/23lb

NOTE:

Specifications

and

design

subject

possible

modification

without

notice,

due

improvements.

FRONT

PANEL

FACILITIES

CUT

BUTTON

Push

this

button

stop

the

record

play.

When

pushed,

the

tonearm

will

rise

and

return

the

arm

rest.

The

power

the

turntable

will

then

switched

off

and

few

seconds

later,

the

platter

will

stop

rotating.

NOTE:

the

REPEAT

button

pushed,

the

tonearm

will

return

the

arm

rest

and

then

move

across

again

the

record.

REPEAT

BUTTON

Push

this

button

when

you

want

listen

the

same

record

again.

Press

the

button

once

release.

NOTE:

All

you

have

for

repeat

play

press

the

REPEAT

button.

There

need

push

the

START

button

again.

START

BUTTON

The

power

the

turntable

turned

and

the

platter

starts

rotate

when

this

button

depressed.

SPEED

SELECT

SWITCH

....

When

this

switch

depressed,

the

platter

will

rotate

45rpm.

Depress

for

playing

45rpm

records,

singles

EP’s.

....

When

this

switch

set

the

released

position,

the

platter

will

rotate

33-1/3rpm.

Release

for

playing

33-1/3rpm

records

LP’s.

(6)

QUARTZ

LOCK

SWITCH/PITCH

CONTROL

KNOB

When

the

Quartz

LOCK

switch

pushed

downward,

the

Quartz

PLL

will

actuate

and

the

strobe

light

comes

on.

Normally

use

this

position.

The

turntable

will

rotate

the

precisely

rated

speed

according

the

SPEED

SELECT

switch.

When

the

Quartz

LOCK

switch

pulled

upward,

the

Quartz

PLL

will

released

and

the

strobe

light

goes

off

and

pitch

meter

lamp

will

light

up.

the

PITCH

CONTROL

knob

turned

this

position,

the

rotating

speed

the

turntable

will

adjusted

faster

slower

than

its

rated

speed.

the

knob

turned

the

(+)

direction,

the

turntable

rotates

faster,

and

the

knob

turned

the

(—)

direction,

the

turntable

rotates

slower

than

its

rated

speed.

The

variation

the

rotating

speed

can

read

out

the

PITCH

METER.

(Refer

“PITCH

CONTROL”)

Dust

\ies

Rubber

platter

mat

Platter

PITCH

CONTROL

normal

circumstances,

the

platter

rotates

the

rated

speed

when

the

Quartz

LOCK

switch

kept

ON.

you

want

vary

the

speed,

set

this

switch

OFF

and

turn

the

PITCH

CONTROL

knob.

the

platter

rotates

faster

than

its

rated

speed,

the

musical

intervals

the

reproduced

sound

will

come

higher,

and

if it

rotates

slower,

they

will

become

lower.

Nowadays,

there

are

slight

variations

the

orchestra

and

other

tuning

sounds

recorded

discs.

Further-

more,

pianos

and

other

musical

instruments

for

the

home

are

tuned

high

international

standards

and

there

are

slight

discrepancies

the

musical

intervals

when

practicing

the

piano

along

with

record.

This

turntable

features

pitch

control

which

allows

you

compensate

for

the

slight

variations

the

musical

intervals

making

the

platter

rotate

faster

slower

than

its

rated

speed.

The

com-

pensation

can

checked

ear.

adjustment

+6%

equivalent

about

semitone.

PL-560

RECORD

SIZE

SELECTOR

This

selector

selects

the

size

the

record

for

automatic

play

and

also

selects

manual

play.

Fonesin

17.

7”

....

For

the

automatic

play

17cm

(7-inch)

and

records.

ANTI-SKATE

knob

NOs

aoe

For

the

automatic

play

25cm

(10-inch)

Arm

elevater

records.

geil

BOT

eis

For

the

automatic

play

30cm

(12-inch)

records.

MANUAL

...

For

the

manual

play

records.

NOTE:

The

tonearm

will

not

actuated

when

the

RECORD

SIZE

selector

the

MANUAL

position

for

play,

even

the

START

button

and

the

REPEAT

button

are

pushed.

ARM

ELEVATION

LEVER

This

lever

controls

the

ascent

and

descent

the

tonearm.

BIUP)

ices

The

tonearm

rises.

Y(DOWN)

...

The

tonearm

descends

gently.

Set

this

position

for

auto

play,

auto

repeat

and

other

automatic

operations.

NOTE:

When

the

ARM

ELEVATION

lever

set

the

position

for

automatic

play,

the

tonearm

will

move

over

far

the

lead-in

groove

the

record

but

will

not

descend

and

the

record

will

therefore

not

played.

PITCH

METER

ARM

REST

When

the

Quartz

LOCK

switch

set

OFF,

the

pitch

The

arm

rest

supports

the

tonearm

when

not

being

meter

lamp

will

light

up,

and

the

variation

the

rota-

used.

Set

the

tonearm

its

rest

when

it is

not

playing

tional

speed

the

platter

respect

its

rating

(33-1/3

records.

Clamp

into

position

you

don’t

have

any

45rpm)

can

read

out

the

meter.

immediate

plans

play

records

(see

Figure).

Releasing

the

arm

Securing

the

arm

clamp

STROBE

LIGHT

When

the

Quartz

LOCK

set

ON,

this

light

comes

and

lights

stroboscopically.

Then,

the

turntable

rotates

its

rated

speed

and

the

strobe

dots

remain

stationary.

PARTS

LOCATION

Plate-L

Plate-R

PNW-338

PNW-339

Main

weight

assembly

PXA-708

Power

transformer

PTT-053

(KUT)

Tonearm

assembly

PTT-054

(KCT)

PPD-577

Meter

assembly

PAW-003

Knob

PAA-035

Cabinet

Push

button

knob

~PMM-159

PAD-039

Power

supply

assembly

PWR-044

(KUT)

PWR-045

(KCT)

Headshell

assembly

PXA-693

Oscillator

assembly

PWX-022

DISASSEMBLY

Tone

arm

Remove

the

arm

base

from

the

cabinet

while

refer-ring

the

disassembly

drawing

Page

11.

Unsolder

the

leads

coming

out

from

the

tone

arm.

Remove

the

P.U.

plate

loosening

the

two

mounting

screws.

Loosen

the

tone

arm

fixing

screws

using

hexagonal

wrench,

and

then

remove

the

tone

arm.

PL-560

Foot

spring

Remove

the

spring

stopper

using

screwdriver,

shown

the

diagram.

Fig.

Timing

motor

Remove

the

sub-panel.

Remove

the

cam

from

the

shaft

the

gear

motor.

Using

cutting

pliers,

cut

off

the

aluminium

rivets

securing

the

gear

motor.

When

reinstalling

the

gear

motor,

use

two

nuts

and

PSA8x8

screw

place

the

rivets

cut

off

above.

Fig.

MECHANISM

ADJUSTMENT

Prior

making

any

adjustments,

check

that

the

plate

shaft

located

the

center

the

cut

out

section

the

sub

panel

(as

shown

Fig.

below).

Cut

out

section

sub

panel

plate

shaft

Fig.

Tonearm

Descent

Positions

The

tonearm

descent

positions

may

adjusted

turning

the

adjustment

screws

located

the

panel

holes

the

base

the

tonearm

pivot

(see

Fig.

When

turned

clockwise

the

descent

position

center.

When

turned

counter

clockwise

...............

the

descent

position

moved

outwards.

This

quite

simple

operation

when

test

record

used.

For

80cm

records

......

tonearm

descent

should

occur

the

304

319

count

range.

For

25cm

records

......

tonearm

descent

should

occur

the

252

267

count

range.

For

17cm

records

......

tonearm

descent

should

occur

the

173

184

count

range.

ey,

Tonearm

descent

position

adjustment

screws

The

tonearm

must

returned

the

arm

rest

provide

access

these

screws.

Fig.

2-a

Turn

adjustment

screw

the

counter

clockwise

direction

Turn

adjustment

screw

the

clockwise

direction

AAA

Descent

position

too

far

inside

Descent

position

too

far

outside

Fig.

2-b

When

Tonearm

Fails

Return

Adjust

the

stopper

angle

that

makes

contact

with

the

return

lever

(Fig.

3).

Return

lever

Stopper

angle

Fig.

Arm

Elevation

Adjustment

Leave

the

tonearm

the

position,

and

adjust

the

height

the

arm

elevation

sheet

that

the

gap

between

stylus

tip

and

record

surface

about

10mm.

(Fig.

4).

Arm

elevation

sheet

Fig.

Auto

Return

Lift

Off

Position

First

check

that

the

turntable

(attached

the

turntable)

has

not

been

bent

over.

Strighten

out

necessary.

Tonearm

lifts

off

too

soon.

Unscrew

the

screw

the

tip

the

plate

suitable

amount

(Fig.

5).

Tonearm

too

slow

lifting

off

Screw

the

plate

tip

screw

further

(Fig.

5).

Screw

tip

plate

Sending

plate

Screw

driver

Fig.

Faulty

Tonearm

Movement

the

tonearm

interfered

with,

halted

altogether

during

the

lead

operation,

tighten

the

screw

shown

Fig.

NOTE:

This

adjustment

screw

should

made

neither

too

tight

nor

too

loose.

eee

Bracket

<—

Nut

Plate

spring

Operations

plate

Fig.

Shorting

Switch

Adjust

the

switch

mounting

screw

that

the

gap

between

contacts

during

play

0.5mm

(Fig.

7).

Screw

dirver

Spring

mounting

screw

(for

adjustment)

—-

Fig.

PL-560

ELECTRIC

ADJUSTMENTS

6.1

SPEED

ADJUSTMENT

WHEN

QUARTZ

LOCK

OFF

Put

the

quartz

lock

off.

Turn

the

ADJUST

knob

the

control

panel

the

mechanical

center

position.

Insert

screwdriver

through

the

small

hole

the

baseplate

the

player,

and

turn

the

semi-

fixed

speed

adjustment

potentiometer

VR:

until

the

strobe

pattern

the

turntable

becomes

stationary.

6.2

ADJUSTMENT

D.D.

MOTOR

OPERATING

POINT

Adjustment

Conditions

Connect

the

and

TP23

terminals

PWG-017

each

input

double

image

oscilloscope

(synchroscope).

Put

the

turntable

the

Quartz

Lock

condition,

and

then

start

up.

Method

Adjustment

Observe

the

output

waveforms

from

and

TP23

(Fig.

8).

(Two

output

pulses

from

terminal

TP23

will

correspond

with

one

pulse

from

terminal

SP.

Adjust

the

semi-fixed

resistor

the

control

circuit

assembly

(PWG-017)

that

the

rising

part

the

pulse

which

comes

out

terminal

TP23

fits

into

the

middle

the

pulse

which

generated

terminal

SP.

For

33-1/3

rpm,

adjust

VR21.

For

rpm

adjust

VR22.

Waveform

TP23

terminal

Waveform

terminal

Fig.

6.3

METER

ADJUSTMENT

Adjustment

Conditions

Connect

frequency

counter

between

the

TP1

and

Gnd

terminals

the

oscillator

assembly

(PWX-022).

Turn

the

speed

adjust

knob

its

mechanical

center.

Put

the

Quartz

Lock

off.

Adjust

VR3

Adjustment

Put

the

speed

selector

button

the

‘45”

position.

Turn

the

oscillator

assembly

(PWX-022)

until

the

reading

the

frequency

counter

becomes

750.0Hz.

Turn

VRz2

the

control

assembly

(PWX-028)

until

the

meter

reading

becomes

zero.

Put

the

speed

selector

button

the

“33”

position,

and

turn

VR:

until

the

meter

reading

becomes

zero.

Turn

the

speed

adjust

knob

until

the

reading

the

frequency

counter

becomes

795Hz

(750Hz

+6%).

that

the

meter

indication

becomes

+6%.

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