Pioneer CT-91 User manual

Q)

PIONEER’

The

future

of

sound

and

vision.

Service

SALES

IED|

STEREO

CASSETTE

DECK

e

This

manual

is

applicable

to

the

CT—91/KU/CA

type.

ORDER

NO.

ARP1656

CONTENTS

if

SPECIFICATIONS

we

W

event

neem

eccer

use

ceecorceesaeeasasssnevies

2

2.

PANEL

FACILITIES

Cree

rececececccccesseneesccccsecceeseces

3

3,

EXPLODED

VIEWS

AND

PARTS

LIST

«+--+

7

4,

PACKING

4)

(0.6

0

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[00

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eselciesicsioee

14

5.

SCHEMATIC

DIAGRAM

Seer

cneseececcetoverecseravceeas

15

6.

P.C.

BOARDS

CONNECTION

DIAGRAM

-----19

7,

ELECTRICAL

PARTS

LIST

ev

eceencecccerseserenncsece

23

8.

ADJUSTMENTS

PYEPPeSTETTeTePee

reece

eer

re

errr

reer

r

eerie

28

9,

SAFETY

INFORMATION

De

ceererecesescencereececesenes

33

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

L3R

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

©

PIONEER

ELECTRONIC

CORPORATION

1988

dig

cen?

ance

waa

We

can

1.

SPECIFICATIONS

SYSIEMSS:

sheen

intios

oe

eRe

4

track,

2-channel

stereo

Heads...........

Laser

amorphous

playback

head/

Hard

parmalloy

recording

head

combination

x

1

Erasing

head:(Ferrite

head)

x

1

MOlOIS

cars

acs

bene

iad

sede’

DC

servo

capstan

motor

x

1

DC

reel

motor

x

1

DC

auxiliary

motor

x

1

Wow

&

Flutter...

00.00.00

ee

0.022%(WRMS)

+

0.052%

(DIN)

Fast

winding

time............

Approximately

80

seconds

(C-60

tape)

Frequency

response

(—

20

dB

recording)

Metal

tape...

6...

eee,

20

Hz

to

23,000

Hz

Chrome

tape

.................0..

20

Hz

to

21,000

Hz

Normal

tape....................

20

Hz

to

21,000

Hz

Signal-to-noise

ratio

.

DOLBY

NR

OFF..................

More

than

60

dB

Noise

Reduction

Effect

DOLBY

NR

B

type

ON

....

More

than

10

dB

(at

5

kHz)

DOLBY

NR

C

type

ON

....

More

than

19

dB

(at

5

kHz)

Harmonic

distortion

..........

No

more

than

0.6%

(0

dB)

IV

OUG

oee

ce

te

Cutt

Sets

eee

Woe!

tanane

Ge

Sat

atl

Sete

LINE:

67

mV

(Input

impedance:

50

kQ)

OUIDUEs

ew

noes

Nae

ee

out

LINE:

316

mV

(Output

impedance:

1.4

kQ)

Headphones:

0.8

mw

(Load

impedance

82

VR

Max.)

Subfunctions

*

3-mode

counter

(4-digit

electronic

counter)

e

Auto

Tape

Loose

Canceller

function

¢

Meter

range

selection

(WIDE/EXPAND)

e

Auto

Monitor

function

(TAPE/SOURCE

auto

selection)

e

Auto

Meter

Warning

zone

Selector

¢

Power

Eject

(OPEN/CLOSE)

¢

Music

Search

(over

+15

selections)

e

Tape

Return/Return

play

*

Headphones

jack

(with

volume

control)

e

Bias

control

°

MPxX

filter

e

Auto

Space

Recording

Mute

e

Auto

Tape

Selector

e

Playback/Recording

timer

start

function

*

Dolby

Noise

Reduction

(B

Type/C

Type)

e

Dolby

HX

Pro

system

¢

FL

Level

Meter

Peak-hold

function

(15

+

1

segments)

e

System

remote

control

available

Miscellaneous

Power

Requirements

U.S.,

Canadian

models

........

....,

AC

120V,

60

Hz

Power

Consumption

U.S.,

Canadian

models...

00.00.00.

ee,

25W

Dimensions

...........

457(W)

x

133.5(H)

x

372(D)

mm

18(W)

x

5-1/4(H)

x

14-5/8(D)

in

Weight

(without

package)...........

10.8

kg

(23

Ib

13

02)

Accessories

Operating

instructions...

2.2.00...

ee.

1

GOMMECIING

COPS

sce

ice

cay

te

seat

aid

das

2

Senne

ae

pees

2

Control

Cord

yn

ox

aid

svanle

sign

bod

dete

OST

e

es

alas

1

NOTE:

Specifications

and

design

subject

to

possible

modifications

without

notice,

due

to

improvements.

2.

PANEL

FACILITIES

Onin

STEREO

CASSETTE

Deck

UT")

s

POWER,

@

POWER

switch

Turn

the

power

on.

After

the

power

is

turned

on,

the

dotted

lines

in

the

level

meter

flash

for

approximately

4

seconds

until

the

circuits

of

the

unit

have

stabilized.

The

unit

will

not

operate

during

this

time

even

if

one

of

the

operation

buttons

is

pressed.

@

Cassette

door

OPEN/CLOSE

button

NOTE:

If

the

cassette

door

is

closed

while

the

unit

is

turned

OFF,

and

the

power

is

then

turned

ON,

the

cassette

door

may

open

and

close

after

pressing

one

of

the

operation

buttons.

This

occurs

when

the

microprocessor

resets

the

door

mechanism

to

its

initial

state

and

does

not

indicate

any

malfunctioning

of

the

unit.

©

COUNTER

selectors

RESET:

Resets

the

counter

indication

to

''0000"'

MODE:

Each

time

this

button

is

pressed,

one

of

the

following

three

modes

is

set

in

sequence.

e

Normal

tape

counter

e

Time

counter

(displays

the

elapsed

playback

or

recording

time)

e

Remaining

time

counter

{displays

the

remaining

time

of

the

tape)

@

TAPE

CAPACITY

selector

To

indicate

the

correct

time

value

in

the

remaining

time

counter

mode,

this

selector

must

be

set

in

accordance

with

the

tape

used.

eens

C90

~

C80L

>

C60

>

C46L

3]

@

TAPE

RETURN

button

This

button

is

used

in

the

tape

counter

mode

to

fast

forward

or

rewind

the

tape

to

a

point

near

the

counter

reading

'‘0000".

@

DOLBY

NR

selectors

ON/OFF:

Used

to

turn

the

Dolby

NR

system

circuits

ON

or

OFF.

B/C:

With

the

ON/OFF

switch

in

the

ON

position,

Dolby

NR

B

or

C

can

be

selected

with

this

switch.

@

MPxX

FILTER

switch

This

switch

is

effective

only

during

recording

with

Dolby

NR.

©

REC

LEVEL

control

©

REC

BALANCE

control

@

TIMER

mode

selector

REC:

Set

to

this

position

for

timer

recording.

PLAY:

Set

to

this

position

for

timer

playback.

OFF:

When

the

timer

is

not

to

be

used,

set

the

selector

to

this

position.

(Normally

leave

the

selector

in

this

position.)

@

PHONES

LEVEL

control

@

PHONES

jack

@®

Cassette

door

@

Rewind

(<<)

button

Press

this

button

to

rewind

the

tape.

When

the

button

is

pressed

during

playback,

the

tape

rewinds

to

the

beginning

of

the

current

selection,

and

playback

starts.

If

the

button

is

pressed

twice,

the

tape

rewinds

to

the

selection

before

the

current

selection.

@®

Stop

(

Mf)

button

@

Play

(>)

button

@

Fast

forward

(>>)

button

Press

this

button

to

fast

forward

the

tape.

When

the

button

ts

pressed

during

playback,

the

tape

advances

to

the

beginning

of

the

and

playback

starts.

If

the

button

is

pressed

twice,

the

tape

advances

to

the

selection

after

the

@

Recording

(

@

)

button

When

this

button

is

pressed,

the

unit

is

set

to

one-touch

recording

pause

(recording

standby

mode).

Press

the

PAUSE

button

to

start

recording.

@

Pause

(

m

)

button

The

tape

transport

can

be

momentarily

stopped

by

pressing

this

button

during

recording

or

playback.

Press

the

button

again

to

restart

operation.

The

button

does

not

operate

during

fast

forward

or

rewind.

@

Record

muting

(

©

)

button

Press

this

button

to

create

an

unrecorded

space

during

recording.

@

METER

RANGE

selector

Selects

WIDE

or

EXPAND

as

scale

range

for

the

level

meter.

@

MONITOR

selector

For

monitoring

the

sound

during

recording,

this

switch

can

be

used

to

switch

between

source

sound

and

just

recorded

sound.

@®

Rec

BIAS

control

It

is

possible

to

adjust

the

bias

according

to

the

tape

used

and

the

source

to

be

recorded.

OPERATING

DISf

—

@)

Counter

«

The

counter

has

e

When

the

cassett

is

displayed.

¢

During

music

sear

(2)

TAPE

RETURN

Lights

up

during

tac

8)

Tape

transport

44

Lights

up

wt

&

=

Lights

up

du

pause

andr

Pr

©

Lights

up

wi

ge:

Lights

up

in

(4)

MUTE

Flashes

and

lights

d

(S)

REC

Lights

up

during

rec

6)

Warning

zone

Changes

according

t

meter

range.

®

Monitor

source

TAPE:

Recorded

SOURCE:

Original

sc

Scale

for

WIDE

ding,

this

switch

can

be

nd

just

recorded

sound.

1g

to

the

tape

used

and

OPERATING

DISPLAY

I

=

68.

-35

-28

PEAK

HOLD

ri

f=

Pn

ae

eae

ae

[_TAPE'RETURN

|]

<<

D>

PP

HI

[rec]

CO

in

init

mitt

nit

nt

ttt

nin

tit

vn

vin

{

MUTE

|

@)

Counter

e

The

counter

has

three

display

modes.

e

When

the

cassette

door

is

opened,

the

message

‘‘OPEN"

is

displayed.

e

During

music

search

the

number

of

selections

is

displayed.

(2)

TAPE

RETURN

Lights

up

during

tape

return

operation.

3)

Tape

transport

modes

“4

=

Lights

up

when

rewinding

the

tape.

®

~.

Lights

up

during

playback,

playback

pause,

recording

pause

and

recording.

Flashes

during

music

search.

»P

—

Lights

up

when

fast

forwarding

the

tape.

wa

=:

Lights

up

in

the

pause

mode.

(4)

MUTE

Flashes

and

lights

during

recording

mute

operation.

(&)

REC

Lights

up

during

recording.

6)

Warning

zone

Changes

according

to

the

type

of

tape

used

and

to

the

selected

meter

range.

®

Monitor

source

TAPE:

Recorded

sound

SOURCE:Original

source

sound

Scale

for

WIDE

range

9)

Level

L:

Left

channel

R:

Right

channel

The

QO

mark

indicates

the

reference

level

for

the

Dolby

NR

system,

REMAIN

Lights

up

when

the

remaining

time

counter

mode

is

selected.

(1)

LARGE

HUB

Lights

up

when

the

TAPE

CAPACITY

selector

is

pressed

in

the

remaining

time

counter

mode,

and

the

Large

Hub

mode

is

set.

(12)

TIME

COUNTER

Lights

up

in

the

time

counter

mode.

(3)

DOLBY

NR

B/C

Indicates

the

selected

Dolby

Noise

Reduction

system,

B

or

C.

0

dB

position

for

EXPAND

range

(15)

MPX

FILTER

Lights

up

when

the

MPX

FILTER

switch

is

pressed

while

the

Dolby

NR

system

is

ON.

0

dB

position

for

WIDE

range

G2)

Tape

type

The

unit

will

automatically

detect

and

display

the

tape

type

(NORMAL/CrO2/METAL)

of

the

cassette

inserted.

When

no

tape

is

inserted,

METAL

is

displayed.

Scale

for

EXPAND

range

@

Connections

Connection

of

input

and

output

cords

e

The

cords

to

be

used

have

white

and

red

plugs.

e

Connect

white

plugs

to

the

left

channel

(L),

and

red

plugs

to

the

right

channel

(R),

making

sure

that

the

colors

match.

Take

particular

care

to

insert

the

plugs

all

the

way

in.

--

(Not

provided

in

the

European

model.)

—s

CONTROL

IN

jack

Connect

this

jack

to

the

CONTROL

OUT

jack

of

a

component

equipped

with

the

Pioneer

System

Remote

Control

(bearing

White

plug

the

RI

mark)

using

the

supplied

mini-plug

cord,

and

you

ON

will

be

able

to

operate

the

component

using

the

system

ae;

Right

channel

remote

control.

Red

plug

CONTROL

OUT

jack

Intermediary

output

of

remote

control

signals

from

the

above

input

jack.

Connect

it

to

the

CONTROL

IN

jack

of

another

component

compatible

with

the

Pioneer

System

Remote

Control.

Left

channel

Connection

to

an

audio

timer

For

details

on

the

connection

to

an

audio

timer,

refer

to

the

instruction

manual

of

the

audio

timer.

CT-91

Recording

connection

Playback

connection

Supplied

When

performing

unattended

cords

p

g

recording

or

wake-up

playback

Audio

timer

www

wewe

Mustration

not

applicable

to

U.K.

model.

Household

AC

outlet

were

eee

eee,

ete

wwons,

i

Stereo

amplifier

CT-91

3.

EXPLODED

VIEWS

AND

PARTS

LIST

NOTES

:

¢

Parts

without

part

number

cannot

be

supplied,

¢

The

A

mark

found

on

some

component

parts

indicates

the

impotance

of

the

safety

factor

of

the

part,

Therefore,

when

replacing,

be

sure

to

use

parts

of

identical

designation.

*

Parts

marked

by

“©”

are

not

always

kept

in

stock,

Their

delivery

time

may

be

longer

than

usual

or

they

may

be

unavailable,

3.1

EXTERIOR

Parts

List

of

Exterior

Mark

No.

Part

No,

>

&

PPP

OON®D

oO

&k

WAN=

CM-22C

PDG1015

REK-074

REK-—080

RTT1060

SLF-401C

DBK~

106

PNB1109

RBF1019

RBH1150

RBL—059

RBM-014

REB—223

REB1038

REB1057

REC1008

RNH

~

184

AAM1001

ABA1023

AMR1159

PAC1208

RAC—668

RAC1203

RAC1204

RAC1205

RAC1206

RAC1262

RAH1369

RAP1003

RMS1007

RMS1008

RNK1284

RNK1285

RNK1411

RNK1412

RXA1

158

RXA1160

RAH1197

RAH1198

RAH1368

RAH1371

RXX1064

RXX1128

RXX1129

RXX1130

____Description

Strain

relief

AC

power

cord

Fuse

(FUI03

1.6A//125V)

Fuse

(FU101,FU102

1A/125V)

Power

transformer

(T1)

Diode

(D11)

Mounting

plate

Absorber

B

Washer

Spring

Cassette

plate

spring

Nylon

rivet

(3.55.5)

Cover

cushion

(D)

Stabilizer

B

Rubber

spacer

(A)

Wood

spacer

Cord

clamper

Name

plate

Screw

Leg

assembly

Knob

(PHONES

LEVEL,

BIAS)

Knob

A

(TIMER)

Button

(POWER)

Button

(DOLBY,

MPX)

Button

(COUNTER)

Button

(CONTROL)

VR

knob

BCREC

BALANCE)

FL

filter

Under

escutcheon

Side

wood

(L)

Side

wood

(R)

Door

Button

holder

Side

mold

(L)

Side

mold

(R)

VR

knob

assembly

(A)

Button

assembly

(MONITOR)

Door

fens

FL

panel

Side

panel

Door

panel

Cassette

plate

assembly

Bonnet

Door

assembly

Front

panel

assembly

Mark

Exterior

A

Part

No.

Description

BBZ40PO80FCC

Screw

BBZ30PO60FCC

Screw

IBZ30PO80FCC

Screw

BBT30PO80FZK

Screw

BBZ40P160FCC

Screw

PYC30P100FMC

Screw

BBZ26PO80FZK

Screw

PMA30PO60FCU

Screw

BIAS

VR

unit

Headphone

unit

INPUT

VR

unit

Amp

unit

FL

unit

Switch

unit

OSC.HX

unit

Timer

unit

Control

unit

Power

supply

unit

Tape

mechanism

unit

Power

transformer

sheet

Tape

mechanism

sheet

VR

rod

Center

stay

VR

_

holder

Panel

stay

PS

holder

P.C.B

holder

Shield

plate

VR

rod

guide

Joint

P.C.B

stud

Cassette

plate

Front

panel

Ne

ee

Rear

panel

Motor

favel

Cay

he

a

x

4

La

Vf

Ny

‘

nee

YASS

AA)

D

3.2

Parts

Mark

List

of

Mechanism

Unit

No.

Part

No.

Description

Mark

1

RSF-031

Micro

switch

2

RSX-059

Rotary

encoder

3

RXM1016

Capstan

motor

assembly

4

RXM1018

Reel

motor

assembly

5

RBA-064

Step

screw

6

RBL-044

Thrust

spring

7

REB-—408

Rubber

cushion

8

RBL-028

Pinch

spring

9

RBL—030

Pinch

thrust

spring

10

RBL-098

Pinch

spring

(SUB)

11

REB1073

Capstan

belt

12

REB1074

Capstan

belt

(A)

13

RNL—-016

Tape

guide

14

RXA1235

Flywheel

assembly

15

RXA1236

Flywheel

assembly

(SUB)

16

RXA1238

Pinch

roller

(A)

assembly

17

RXA1240

Pinch

roller

(R)

assembly

18

RXB-362

Metal

holder

assembly

(A)

19

RXB-466

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21

RBL-—032

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22

RBL-033

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pressure

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23

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24

RXB-751

BT

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25

RXB-874

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26

RXB-875

Take—up

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27

RBL-—037

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28

RBL~038

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29

REB-502

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belt

30

REB-511

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shoe

31

RNL-723

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32

RNL-729

Cam

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33

RXB~-884

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cam

gear

assembly

34

RBH1136

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shock—absord

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35

RBH1137

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return

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36

RBH1138

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return

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RBH1142

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return

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38

RBL-—027

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39

RBL-—039

Eject

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40

RBL-040

Half

pressure

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41

RBL—041

Rec

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spring

42

RBL-042

Detect

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spring

43

RBL-—043

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lever

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44

REB-—447

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RNH-184

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RNL-733

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RNL-—735

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RNL-739

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RNL-740

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RNL-741

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RNL-742

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54

RNL-849

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55

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109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

Part

No.

Description

BBZ26PO80FZK

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BBZ30PO80FZK

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BMZ23P100FZK

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BMZ26PO030FZK

Screw

BMZ30PO80FZK

Screw

JGZ20PO025FMC

Screw

PMA26PO50FZK

Screw

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Screw

PMZ20PO80FZK

Screw

RBF

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Oil

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RBF

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RBF-—070

Thrust

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RBF—-076

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RBF-077

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VCZ26PO80FMC

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WA26N070W040

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WA32D080D050

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YE20FUC

E

ring

YE25FUC

E

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YE30FUC

E

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YS24FBT

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RXX1055

Power

motor

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RXX1158

Head

base

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Earth

lead

wire

assembly

R/P

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Erase

head

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unit

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Reel

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Pressure

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No,

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

Part

No.

Description

Cassette

clamp

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Plate

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clamper

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Cassette

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Side

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Top

frame

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capacitors

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schematic

diagram.

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circuit

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to

7

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$3

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11

Pioneer CT-91 User manual

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