Pioneer PL-Z94 User manual

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5

Table of contents

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@)

PIONEER’

The

Art

of

Entertainment

Service

CAL

ETTIED|

STEREO

TURNTABLE

PL-294

...

PL-Z2570

ZEBM

PL-Z2470

ZEBM

¢

Refer

to

the

service

manual

ARP1478,

PL-Z91/ZEBM

type.

©@

This

manual

is

applicable

to

the

PL-Z94/ZEBM,

PL-Z570/ZEBM

and

PL-Z470/ZEBM

types.

@

These

products

are

components

of

systems.

As

to

the

system

composition,

refer

to

the

applicable

system

manuals.

PIONEER

ELECTRONIC

CORPORATION

4-1,

Meguro

t-Chome,

Meguro-ku,

Tokyo

153,

Japan

PIONEER

ELECTRONICS

SERVICE

INC.

P.O.

Box

1760,

Long

Beach,

California

90801

U.S.A.

PIONEER

ELECTRONICS

OF

CANADA,

INC.

505

Cochrane

Drive,

Markham,

Ontario

L3R 8E3

Canada

PIONEER

ELECTRONIC

[EUROPE]

N.V.

Keetbergiaan

1,

2740

Beveren,

Belgium

PIONEER

ELECTRONICS

AUSTRALIA

PTY.

LTD.

178-184

Boundary

Road,

Braeside,

Victoria

3195,

Australia

TEL:

[03]

580-9911

©

PIONEER

ELECTRONIC

CORPORATION

1990

'PL-Z94,

PL-2570,

PL-Z470

NOTES:

¢

Parts

without

part

number

cannot

be

supplied.

e

Parts

marked

by

“@®”

are

not

always

kept

in

stock.

Their

delivery

time

may

be

longer

than

usual

or

they

may

be

unavailable.

©

The

A\

mark

found

on

some

component

parts

indicates

the

importance

of

the

safety

factor

of

the

part.

Therefore,

when

replacing,

be

sure

to

use

parts

of

identical

designation.

The

PL-Z94/ZEBM,

PL-Z570/ZEBM

and

PL-Z470/ZEBM

types

are

the

same

as

the

PL-Z91/ZEBM

type

with

the

exception

of

the

following

sections.

io

Part

No.

Maik

~

Symbol:

&

Description

PL-Z91/ZEBM

PL-Z94/ZEBM

PL-Z570/ZEBM

|

PL-z47o/zepm

|

Remarks

Sub-panel

assembly

Non

supply

Non

supply

Non

supply

Non

supply

Name

plate

Non

supply

Non

supply

Speed

button

PAC1226

PAC1226

PAC1436

PAC1436

EV

button

PAC1227

PAC1227

PAC1437

PAC1437

S/S

button

PAC1228

PAC1423

Cut

botton

PAC1469

Front

name

plate

Non

supply

Non

supply

Front

name

plate

assembly

PEA1138

PEA1137

Insulator

PEB1155

PEB1155

Insulator

assembly

PXA1370

PXA1370

Arm

assembly

PPD1027

PPD1027

PPD1027

Cut

rod

Non

supply

Non

supply

Size

rod

Non

supply

Non

supply

S/S

rod

Non

supply

Non

supply

Protector(R)

PHA1045

PHA1045

PHA1082

PHA1082

Protector(L)

PHA1046

PHA1046

PHA1083

PHA1083

Turn

table

PNR1025

PNR1037

PNR1037

PNR1037

Button

stopper

F

PBK1038

PBK1038

Button

stopper

R

PBK1037

PBK1037

Packing

case

PHG1163

PHG1599

PHG1604

PHG1603

Panel

PNW1294

PNW1292

PNW1493

PNW1734

Start

lever

Non

supply

Non

supply

PU

plate

assembly

PXA1109

PXA1109

PU

plate(B)

assembly

PXA1114

PXA1114

Note:

The

PU

plate(B)

assembly

(PXA1114)

is

the

same

as

that

of

PL-Z81/ZEBM

which

is

shown

with

PL-Z91/ZEBM

in

the

service

manual

ARP1478.

The

Sub-panel

assembly

of

PL-Z570/ZEBM

type

is

the

same

as

that

of

PL-Z91/ZEBM

type.

The

Sub-panel

assmeblies

of

PL-294/ZEBM

and

PL-Z470/ZEBM

types

are

the

same

as

the

sub-panel

assembly

of

PL-Z91/ZEBM

with

the

exception

of

the

following

sections.

Part

No.

Mark

ipti

*

opimbel®

Dercnpties

PL-Z91/ZEBM

PL-294/ZEBM

PL-2470/ZEBM

Select

lever

spring

PBH1053

Reset

plate

spring

PBH1054

Select

lever

PBH1096

Index

cam

PNW1296

Reset

plate

PNW1312

Selector

PNW1313

Drive

plate

assembly

PXA1110

PXA1112 PXA1112

Note:

The

Drive

plate

assembly

(PXA1112)

is

the

same

as

that

of

PL-Z81/ZEBM

which

is

shown

with

PL-Z91/ZEBM

in

the

service

manual

ARP1478.

PIONGCER

The

future

of

sound

and

vision.

hd

Wer

ORDER

NO.

ARP1478

STEREO

TURNTABLE

L291

zea

L=Z2831

cco

©

This

service

manual

is

applicable

to

the

PL-Z291/ZEBM

and

PL-Z81/ZEBM

types.

CONTENTS

1,

SPECIFICATIONS

1.0.00...

00

cece

eee

eens

2

7.

P.C.

BOARDS

CONNECTION

DIAGRAM

....

13

2.

PANEL

FACILITIES

.........000ceeeeeee

Z

8.

ELECTRICAL

PARTS

LIST..........-05-

14

SIPRORING

4c

eta

doe

meee

Se

ada

an

eas

ks

3

9.

PRECAUTIONS

FOR

REASSEMBLY

.......

15

DISASSEMBLY

eit

do

hd

seine

dt

eneee

as

4:

40;

ADIUSTMENTS:

.uiceccusdons

i

dawed

ease

19

5,

EXPLODED

VIEWS..........

000000

ee

eee

6

REGOAGE®

ox

cckimow

saute

tyme

arin:

21

6.

SCHEMATIC

DIAGRAM

..............0--

12

PMISTE

co

ay

cud

adara

tena

Rees

Pee

23

PIONEER

ELECTRONIC

CORPORATION

=

4-1,

Meguro

1-Chome,

Meguro-ku,

Tokyo

153,

Japan

PIONEER

ELECTRONICS

SERVICE

INC.

P.O.

Box

1760,

Long

Beach,

California

90801

U.S.A.

PIONEER

ELECTRONICS

OF

CANADA,

INC.

505

Cochrane

Drive,

Markham,

Ontario

LR

8E3

Canada

PIONEER

ELECTRONIC

[EUROPE]

N.V.

Keetberglaan

1,

2740

Beveren,

Belgium

PIONEER

ELECTRONICS

AUSTRALIA

PTY.

LTD.

178-184

Boundary

Road,

Braeside,

Victoria

3195,

Australia

TEL:

[03]

580-9911

MO

©

JAN.

1988

Printed

in

Japan

od

eS

Md

ee

—

|

1.

SPECIFICATION

Turntable:

PL-Z91/PL-Z81

Other

Motor,

Platter

Dimensions

---1+----e

360W

x

90H

x

350.5Dimm)

Motor

Typer

screener

cence

trees

DC

servo

motor

Weight

Drive

Method

---:--:--::c

tees

trt

etter

eteteeteey

belt

drive

PL-Z91

Ete)

>1

>):

ee

33-1/3,

45

RPM

PL-Z81

Speed

Variation

------------

0.07%

WRMS

(JIS

+0.10%

WTD)

Peak

(DIN)

Accessories

SIN

Ratio

s--1-:-ereerreet

erect

eee

tee

eee

tere

es

68

dB

(DIN-B)

EP

Adaptor

<-1-ceecceccesceceeeeeeneeeeecenneenee

serene

neneerneteneerenes

1

edt:

4

(-)

ee

295mm

dia.,

aluminum

die-cast

Specifications

and

design

subject

to

possible

modifications

Tonearm

without

notice

due

to

improvement.

A]:

:

Dynamic-balance

type,

straight

tonearm

Installed

Cartridge

Type

o's.

Chiara

gp

bin

i

wiblel

ciate

alee

22's

nine

ba-elele

See

Tin

OURS

SSIES

Sle'b

Bis'd

Sietto'd

be

So

OF

Sawa

CTS

MM

type

Replacement

Stylus

bbe

RN

AW

RDS

HSE

ae

hn

tee

aoe

ba

CUTE

Woe

SHEERS

©

PN—

210

Stylus

Pubid.onie,

$09

NONE.

vie

Siete

a

nieiete

bee

Se

STS

Sel

Bee

BUEG

Hassel

Pere

0.6

mil

diamond

Output

voltage

2.5mV

(1kHz,

3.54cm/s,

Lat.

peak)

Tracking

Force

---:--+-:--0::rerreeer

rere

eeeees

2-—3.0g

{optimum

2.5g)

Frequency

Response

-++:-0+----se-

ee

reeerr

terres

20Hz

to

20,000Hz

Load

Resistance

ee

ee

ECCT

TELE

Ce

PT

Te

EE

TOE

LE

TEE

ee

A7kQ

Cartridge

Weight

ECON

TT

TT

ETEN

SES

CCE

EET

EEC

TE

PUTT

TST

ETT

PTET

eee

4g

2.

PANEL

FACILITIES

(PL-Z81

is

not

equipped

|

|

with

this

switch.)

64)

6) 63

49)

PL-Z91,

PL-Z81

@2

EP

adaptor

62)

PLAY/STOP

switch

(only

PL-Z91)

Platter

shaft

Press

this

switch

when

starting

auto

play

or

when

stopping

play.

Platter

mat

mares

Platter

Be

sure

to

press

the

switch

firmly

when

starting

playback;

if

not

pressed

firmly,

the

platter

may

rotate

without

the

tonearm

mov-

Dust

cover

ing.

@

Arm

rest

63)

CUT

switch

(only

PL-Z81)

4)

Tonearm

Press

this

switch

when

stopping

play.

Cartridge

64

ARM

ELEVATION

switch

Use

the

switch

for

manual

play.

SPEED

switch

¢

Use

the

switch

to

suspend

record

play

temporarily.

¢

Use

the

switch

when

changing

the

tracks

during

actual

Set

this

switch

in

accordance

with

the

speed

of

the

record.

33:

For

33-1/3

45:

play.

(PROS

FSERI

ES

Soe

PRs

erty

Teeeress

{UP]:

The

tonearm

rises

(the

stylus

moves

away

from

the

i

=

record).

@

CISG

SIZE

switch

{only

PL-291)

[DOWN]:

The

tonearm

descends

(the

stylus

is

lowered

onto

Set

this

switch

in

accordance

with

the

size

of

the

record.

the

record).

30:

For

30

cm

LP

records.

17:

For

17

cm

EP

records.

3.

PACKING

Parts

List

of

Packing

(PL-Z91

and

PL-Z81)

Mark

No.

Part

No.

Description

1,

PEB1059

Turntable

sheet

2.

PRH1007

Operating

instructions

3.

PNV1008

Dust

cover

4.

PHA1045

Protector

(R)

5.

PHA1046

Protector

(L)

6.

PEC1002

45

adaptor

7.

PHG1163

Packing

case

(For

PL-Z91)

PHG1158

Packing

case

(For

PL-Z81)

8.

PNR1020

Turntable

51.

Mirror

mat

52,

Vinyl

bag

eo)

aS

be

Fe

rd

—

4.

DISASSEMBLY

PU

lead

wires

Solder

iron

Dust

cover

Tonearm

assembly

Turntable

sheet

assembly

Turntable

platter

@

SW

P.C.

board

assembly

Mechanism

assembly

(Sub-panel

assembly}

Under

base

Mechanism

Assembly

(Sub-panel

Assembly)

and

Motor

.

Rotate

the

turntable

platter

to

disengage

the

me-

chanism.

).

Fix

the

tonearm

to

the

arm

rest.

(Be

sure

to

cover

the

stylus

with

the

stylus

cover.)

.

Remove

the

turntable

sheet

assembly

and

then

the

turntable

platter.

.

Close

the

dust

cover,

turn

the

turntable

upside

down,

and

place

it

on

a

soft

surface,

e.g.,

a

work

bench

covered

with

soft

cloth

(for

product

protection).

.

Remove

the

five

screws

labeled

(D,

and

remove

the

under

base.

.

Remove

the

five

screws

labeled

@)

and

one

screw

labeled

(@),

and

remove

the

lead

con-

nected

to

the

microswitch.

This

operation

will

release

the

mechanism

assembly.

.

Remove

the

two

screws

labeled

@)

to

remove

the

motor

assembly.

PL-Z91,PL-Z81

.Remove

the

mechanism

assembly

from

the

Tonearm

assembly

panel.

.Unsolder

and

disconnect

the

PU

leads

(arm

leads)

from

the

PU

printed

circuit

board.

.

Remove

the

AS

spring

from

the

PU

plate

as-

sembly.

.

Remove

the

screw

labeled

(),

and

remove

the

PU

plate

assembly

from

the

tonearm

assembly.

.

Remove

the

R

clip.

.

Place

the

turntable

on

one

of

its

sides,

remove

the

arm

clamp,

and

gently

pull

out

the

tonearm

assembly

from

the

panel.

PL-Z91,

PL-Z81

5.

EXPLODED

VIEW

5.1

EXTERIOR

NOTES:

e

Parts

without

part

number

cannot

be

supplied.

e

The

A

placing,

be

sure

to

use

parts

of

identical

designation.

e

For

your

Parts

Stock

Control,

the

fast

moving

items

are

indicated

with

the

marks

®**®

and

*.

**

GENERALLY

MOVES

FASTER

THAN

*

This

classification

shall

be

adjusted

by

each

distributor

because

it

depends

on

model

number,

temperature,

humidity,

ete.

e

Parts

marked

by

““@”

are

not

always

kept

in

stock.

Their

delivery

time

may

be

longer

than

usual

or

they

may

be

un-

available.

Parts

List

of

Exterior

Mark

No.

Part

No.

Description

1.

PXA1106

PU

cord

assembly

2.

CKDYF103Z50

Ceramic

capasistor

*

3,

PPD1016

Arm

assembly

4.

PEB1059

Turntable

sheet

wk

5.

PEB1060

Belt

6.

PNR1020

Turntable

7.

PBA-112

Screw

8.

PEB1063

Rubber

9.

PBK1033

R

clip

*

10,

PNW1289

Arm

rest

11,

PBF-020

Washer

12,

PBH1044

AS

spring

13,

PBH1046

EV

spring

14,

PNW1290

EV

sheet

15.

IPC30P100FMC

Screw

16.

PBH1050

EV

lever

spring

17,

PBH1051

Elevation

cam

spring

18.

PED-051

Washer

19.

PNW1309

Elevation

cam

20.

PXT1017

EV

plate

spring

(D)

unit

21.

WT31D054D050

Washer

22.

PXA1109

PU

plate

assembly

(PL-Z91

only)

23,

PXA1114

PU

plate

(B)

assembly

(PL-Z81

only)

24.

PMD40PO080FMC

Screw

(PL-Z81

only)

25.

WC40FMC

Washer

26.

YS40FBT

Washer

27.

IPC30P100FMC

Screw

28.

IPC30P290FMC

Screw

29.

PBK1038

Button

stopper

F

(PL-Z91

only)

30.

PBK1037

Button

stopper

R

(PL-Z81

only)

31.

PSZ30PO60FMC

Screw

32.

PNV1008

Dust

cover

33.

PXA1108

Hinge

assembly

35.

PEB1061

Insulator

36.

YP40FBK

Nut

Mark

37.

38.

39.

40.

41.

42.

43.

44,

45.

46.

101.

102.

103.

104.

105.

106.

107,

108.

109.

110.

111,

112.

113.

114.

115.

No.

mark

found

on

some

component

parts

indicates

the

importance

of

the

safety

factor

of

the

part.

Therefore,

when

re-

Part

No.

Description

BPZ26P120FZK

Screw

PAM1156

Front

name

plate

(For

PL-Z91)

PAM1155

Front

name

plate

(For

PL-Z81)

PNW1294

Panel

(For

PL-Z91)

PNW1292

Panel

(For

PL-Z81)

PAC1226

Speed

button

PAC1227

EV

button

PAC1228

S/S

button

PEC1002

45

adaptor

PYY

1047

Motor

assembly

PNW1319

Stylus

cover

PXV1004

Cartridge

SW

P.C.

board

assembly

Sub-panel

assembly

PU

plate

spring

Screw

(PL-Z91

only)

PU

plate

(A)

PU

plate

(B)

PU

spring

washer

EV

rod

Size

rod

(PL-Z91

only)

S/S

rod

(PL-Z91

only)

Cut

rod

(PL-Z81

only)

S/S

spring

Rubber

Under

base

Start

lever

yo,

,

.

——

|

z

|

i

A

-

:

-

7

-

5.2

SUB-PANEL

ASSEMBLY

(PL-2Z91)

Parts

List

of

Sub-panel

(PL-Z91

and

PL-Z81)

A

ke

14.

15,

16.

17.

18.

PBH1040

PBH1053

PBH1054

PNB1096

PNB1098

PNW1296

PNW1301

PNW1312

PNW1313

PNW1314

PSF-023

PSZ30PO60FMC

PXA1110

PXA1112

PBH-224

PBK-038

PSZ30P100FMC

PXA1111

PYY1046

Description

Mark

No.

Part

No

Lock

spring

101.

Sélect

levér

spring

102,

(PL-Z91

only)

103.

Reset

plate

spring

104,

(PL-Z91

only)

105.

Select

lever

(PL-Z91

only)

106.

Detector

lever

107.

Index

cam

(PL-Z91

only)

108.

Switch

locker

109,

Reset

plate

(PL-Z91

only)

110.

Selector

(PL-Z91

only)

Switéh

lever

Microswitch

(POWER,

$1)

Screw

Drive

plate

assembly

(For

PL-Z91)

Drive

plate

assembly

(For

PL-Z81)

Start

plate

spring

Click

plate

spring

Serew

Shaft

assembly

Cam

assembly

Description

Starting

plate

Signal

plate

Sub-panel

Start

lever

(PL-Z91

only)

EV

cam

Lead-in

ratch

Drive

plate

unit

Start

plate