Pioneer Ct-501 User manual

Service

ieee

c/Manual

CIRCUIT

&

MECHANISM

DESCRIPTIONS

E

~

—=

REPAIR

&

ADJUSTMENTS

=

5

ried

STEREO

CASSETTE

TAPE

DECK

Shown

in

this

photo

is

Model

CT-501.

T-501

CT-450

CT-405

©

CT-450

and

CT-405

are

the

same

as

the

CT-501

except

for

the

design

(color)

only.

@

Models

CT-501,

CT-450

and

CT-405

come

in

versions

distinguished

as

follows:

Applicable

Model

Type

a

Power

Requirement

Destination

CT-501

CT-450

CT-405

Bane

oe

=

AC120V

only

Canada

AC220V

(240V*)

European

continent

AC240V

(220V*)

United

Kingdom

e

This

service

manual

is

applicable

to

the

KU,

HEM

and

HB

types.

As

to

the

HEM

and

HB

types,

please

refer

to

pages

46

~

47.

As

to

the

other

types,

please

refer

to

the

additional

service

manual.

e

The

tape

transport

mechanism

for

CT-501

is

the

same

as

that

for

CT-301.

e

As

to

the

mechanism

descriptions,

please

refer

to

the

CT-301/CT-350

service

manual

(ARP-513).

¢

Ce

manuel

d’instruction

se

refére

au

mode

de

réglage,

en

francais.

e

Esta

manual

de

servicio

trata

del

métoto

de

ajuste

escrito

en

espafiol.

*Change

the

primary

wiring

of

the

power

tamsformer.

Eanes

ere

re

ee

PIONEER

ELECTRONIC

CORPORATION

4-

1,

Meguro

1-Chome,

Meguro-ku,

Tokyo

153,

eee

PIONEER

ELECTRONICS

(USA]

INC.

P.O.

Box

1760,

Long

Beach,

California

90801

U.S.A.

‘2

TEL:

(B00}

421-1404,

(800}

237-0424

PIONEER

ELECTRONIC

[EUROPE]

N.V.

Keetberglaan

1,

2740

Beveren,

Belgium

TEL:

03/775:

28:

08

2

PIONEER

ELECTRONICS

AUSTRALIA

PTY.

LTD.

178-184

Boundary

Road,

Braeside,

Victoria

31

95.

Austral

TEL:

(O3]

580-9911

YH

©

JUNE

1984

Printedira

Japan

sien

eds

ident

c.

4

re

ee

tat

Te

at

ems

1.

SPECIFICATIONS

...........00000000e

2

2.

FRONTPANEL

FACILITIES.............

3

3.

DISASSEMBLY

..............00000008

4

4.

PARTS

LOCATION

.............00000,

6

5.

ELECTRICALPARTSLIST..............

7

6..

“PACKING

wcsc

ia

ate

adit

ele

ke

oe

eee

9

7,

P.C.

BOARDS

CONNECTION

DIAGRAM

....

10

8.

SCHEMATIC

DIAGRAM................

13

1.

SPECIFICATIONS

Systeme...

2...

eee

en

4

track,

2-channet

stereo

Heads

.......,

“Hard

Permalloy’’

recording/playback

head

x

1

“Ferrite”

erasing

head

x

1

Motor

aay

eT

dig

ete

en

meene

DC

servo

motor

x

1

Wow

and

Flutter

..........

No

more

than

0.06%

(WRMS)

No

more

than

+0.18%

(DIN)

Fast

Winding

Time...

.

Approximately

110

seconds

(C-60

tape)

Frequency

Response

~20dB

recording:

Normal

tape...

2.2...

ee

35

to

13000Hz

Chrome

tape

...............000.

35

to

14000Hz

Metal

tape...

2.

35

to

15000Hz

Signal-to-Noise

Ratio

Dolby

NROFF..................

More

than

57dB

Noise

Reduction

Effect

Dolby

B-typeNRON

........

More

than

10dB

(at

5kHz)

Dolby

C-type

NRON

........

More

than

19dB

(at

5kHz)

Harmonic

Distortion.

..........

No

more

than

1.5%

(OdB)

Input

(Sensitivity)

MEG

OR):

284.3

gute

agate

SiecY

0.3mV,

6mm

diam.

jack

(Source

impedance

10k)

LINE

(INPUT)

2.0...

ee

50mV

(Input

impedance

91k)

Output

(Reference

level)

LINE

(OUTPUT)...

00.

ee

330mV

(Output

load

impedance

50k)

9.

BLOCK

DIAGRAM

............0000005

16

10.

EXPLODED

VIEW

.........-.0.0ec

sees

18

11.

ADJUSTMENTS

..........

00...

eee

25

REGEAGE

5

oes

awh

oe

hd

da

ke

31

PSUSTE

%

cx

nan

eae

weed

Ait

oes

mache

San

37

12.

SAFETY

INFORMATION

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

43

13.

ICDATA

.........

Saat

asa

ee

Sis

ahs

44

14.

SUPPLEMENT

FOR

CT-450/HEM,HB

......

46

Furnished

Parts

Operating

instructions...

0.0.0.0...

0.00

cee

ee

eee

1

Connection

cord

with

pinplugs

...........00-8

006

2

Subfunctions

@

Dolby

NR

system

(B

type/C

type)

@

3

position

tape

selector

(NORM/CrO,

/METAL)

e

Air

damped

eject

function

WOE:

e@

Full

automatic

stop

function

:

@

Timer

stand-by

function

e@

LED

level

meter

@

One-touch

recording

Miscellaneous

Power

requirements

KU,

KC

models...

.......0.....000,

AC120V/,

60Hz

HEM

model.................004

AC220V,

50/60Hz

HB,

HP

models:

25.50.

6

oe

ee

es

AC240V

,50/60Hz

D,

D/G

models

.

AC120V/220V/240V,

50/60Hz

(switchable)

Power

Consumption

KU,

KC

models::..

@

ct

ate

ieee

Ba

bed

Sek

es

16

watts

HEM,

HB,

HP

models

................0004

20

watts

DD;

D/Grmedels”

i600

6

bk

hb

ace

ns

band

eee

as

16

watts

Dimensions

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

420

(W)

x

120

(H)

x

238

€D)

mm

16-9/16

(W)

x

4-6/8

(H)

x

9-3/8

(D)

in

Weight

(without

package).

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

3.9kg

(8

ito

10

oz)

NOTE:

Specifications

and

the

design

subject

to

possible

modifica-

tions

without

notice

due

to

improvements.

e.

Your

advice,

opinion

or

ideas

servicing

this

product.

2.

SERVICE

MANUAL

EVALUATION

a.

Circuit

&

Mechanism

Description

b.:

Circuit

Diagram

3.

OTHER

Please

describe

other

areas

of

servicing

which

you

may

find

difficult.

Completed

by

:

Company

Name

:

Address

:

City/State/Zip

:

Please

send

this

form

filled

to

the

distributor

in

your

country.

QUESTIONNAIRE

MODEL

One

Model

per

questionnaire

Dear

Servicer,

Thank

you

for

your

cooperation

in

the

post-sale

service

of

Pioneer

products.

This

questionnaire

is

used

as

a

tool

to

improve

the

serviceability

of

our

products

and

service

manuals.

Please

evaluate

this

model

and

service

manual

by

answering

the

following

questions.

Your

ideas

may

be

realized

in

our

future

products.

Your

answers

will

be

appreciated.

Thank

you.

PIONEER

ELECTRONIC

CORP.

T.

Nakagawa,

Manager,

Service

Section,

International

Division

1.

SERVICING

EVALUATION

Circle

applicable

number:

Good

Fair

Poor

a.

Disassembly/Re-assembly:

1

2

3

#*4

45

b.

ae

Checks:

1

2

38

#*4

*5

c.

Replacement

of

Parts:

1

2

3

*4

;

d.

Adjustment

(s):

sr’

Sa

en

aS

|

*

If

(4)

or

(5)

was

circled,

please

be

specific.

PST

re

ee

eT

EAE

SLY

ee

ee,

2.

FRONT

PANEL

FACILITIES

@

POWER

SWITCH

@

EJECT

BUTTON

Push

this

button

to

open

the

cassette

door.

©

OPERATION

SWITCHES

@

(Rec)

:

Push

this

switch

to

start

recording.

When

de-

pressed

to

the

ON

position,

the

REC

indicator

lights.

The

switch

does

not

work

when

a

cassette

is

not

loaded

or

when

the

erasure

Prevention

tabs

of

a

loaded

cassette

have

been

broken

off.

44

(REW)

:

Push

this

switch

to

rewind

the

tape

quickly.

»

(Play)

:

Push

this

switch

to

start

tape

playback.

-

bP

(FF)

:

Push

this

switch

to

send

the

tape

forward

;

quickly.

@

(Stop)

:

Push

this

switch

to

stop

the

tape

running

and

to

release

the

function

switches.

fl

(Pause)

:

Push

this

switch

to

stop

the

tape

temporarily.

Release

it

to

resume

running.

The

tape

does

not

stop

during

fast

forward

or

rewind

operations

even

when

the

§9

(pause)

switch

is

pushed.

@

TAPE

COUNTER

@

RESET

BUTTON

Push

this

button

to

reset

the

tape

counter

display

to

000.

@

LEVEL

METER

@

REC

LEVEL

CONTROL

©

REC

INDICATOR

This

lights

during

the

recording

mode.

©

POWER

INDICATOR

@

TAPE

SELECTOR

These

selectors

allow

the

tape's

bias

and

equalization

characte-

ristics

to

be

selected

during

recording

and

the

equalization

cha-

racteristics

during

playback,

in

tine

with

the

type

of

tape

being

used.

Normal

tape

Chrome

tape

:

Release

the

top

switch

(

2.

NORM).

:

Depress

the

top

switch

(

-m

HIGH)

and

relea-

se

the

bottom

switch

(

i

CrO,).

:

Depress

both

the

top

and

bottom

switches

(=m

HIGH,

-@

METAL).

Metal

tape

@

*DOLBY

NR

SWITCH

When

the

Dolby

NR

(Noise

Reduction)

system

is

used

to

record

a

tape,

or

when

playing

back

a

tape

recorded

on

the

Dolby

NR

system,

depress

the

switch

on

the

left

to

the

ON

position

(

.m

).

There

are

two

types

of

the

Dolby

NR

system,

B-type

and

C-type.

Use

the

switch

on

the

right

to

choose

the

type.

To

choose

B-

type,

the

switch

should

be

in

the

released

position

(

M&

).

To

choose

C-type,

the

switch

should

be

in

the

depressed

position

(-m

).

When

playing

a

tape

which

has

not

been

recorded

on

the

Dolby

NR

system,

set

the

switch

on

the

left

so

that

it

is

in

the

released

Position

(

ML

).

*Noise

Reduction

manufactured

under

license

from

Dolby

Labo-

ratories

Licensing

Corporation.

“Dolby”

and

the

double-D

symbol

are

trademarks

of

Dolby

Laboratories

licensing

Corporation.

@

mic

JAcKs

These

are

the

input

jacks

for

microphone

recording.

@®

DOLBY

NR

INDICATORS

These

light

when

the

DOLBY

NR

switch

is

set

to

ON.

[B]:

This

lights

when

the

B

type

Dolby

noise

reduction

sy

stem

is

Operating.

[C]:

This

lights

when

the

C

type

Dolby

noise

reduction

sy

stem

is

operating.

Bonnet

case

>

ns

=

“US

:

et

3)

Li!

oC

Oo

iu,

:

0

ime

a

+

ia

-_

”n

=

i

,

4

,

:

oa

“4

2

Bonnet

Case

Remove

screws

(A)

(rear

side).

Front

Panel

Pull

off

the

REC

LEVEL

knob,

and

remove

screw

(B),

and

remove

the

upper

and

lower

retaining

hooks.

Door

Assembly

Press

the

EJECT

button

to

open

the

cassette

holder.

Lift

the

door

assembly

upward

and

pull

outward.

Tape

Transport

Unit

Remove

the

counter

belt

and

REC

joint.

Re-

move

screws

(C)

(bottom

side)

and

screws

(D)

(top

side).

CT-501,450,405

Tape

transport

unit

(C)

CT-501,450,405_

4.

PARTS

LOCATION

Front

Panel

View

Bonnet

case

RNA-647

(for

CT-501)

RNA-648

(for

CT-450,

405)

*&k

Door

assembly

RXX-456

(for

CT-501)

RXX-457

(for

CT-450)

RXX-458

(for

CT-405)

Knob-cap

(EJECT,

POWER)

RAD-249

Panel

stay

RNT-045

(for

CT-501)

RNT-047

(for

CT-450)

RNT-O55

(for

CT-405)

Knob

(REC)

RAC-414

(for

CT-501)

RAC-402

(for

CT-450,

405)

Knob

(PLAY,

FF,

REW)

RAC-403

(for

CT-501)

RAC-390

(for

CT-450,

405)

Rear

Panel

View

Terminal

(LINE)

RKB-020

Top

View

Z\

&

Power

transformer

RTT-373

Power

supply

assembly

ZX

*%

Push

switch

(POWER)

RSA-063

*k&k

Motor

with

pulley

RXM-088

Parts

without

part

number

cannot

be

supplied.

The

/\

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.

For

your

Parts

Stock

Control,

the

fast

moving

items

are

indicated

with

the

marks

wk

and

*.

kk

GENERALLY

MOVES

FASTER

THAN

*.

This

classification

shall

be

adjusted

by

each

distributor

because

it

depends

on

model

number,

temperature,

humidity,

etc.

Meter

panel

RAH-516

[for

CT-501)

RAH-517

[for

CT-450)

RAH-543

[for

CT-405)

Front

panel

RAH-513

[for

CT-501)

cepa

RAH-515

[for

CT-450)

?

RAH-542

{for

CT-405)

Knob

(REC

LEVEL)

RAA-395

Knob

cap

(TAPE

SELECTOR)

RAD-249

Phone

jack

with

switch

(MIC)

RKN-087

Knob

cap

A

(DOLBY

NR)

RAD-280

Knob

(PAUSE}

RAC-403

(for

CT-501)

RAC-390

(for

CT-4.50,

405)

Tape

counter

Knob

(STOP)

RAC-404

(for

CT-501)

RAC-391

(for

CT-450,

405)

A\

Strain

relief

RE

C-395

aN

ACpowver

cord

RDG-048

Man

assembly

xk

Slide

swita

(FREC/PB)

RSH-042

*&k

Push

switch

(TAPE

SL

&CTOR)

RSG-161

*%*

Push

switch

assembly

(COL

BY

NR)

RSG-160

5.

ELECTRICAL

PARTS

LIST

NOTES:

e

When

ordering

resistors,

first

convert

resistance

values

into

code

form

as

shown

in

the

following

examples.

Ex.1

When

there

are

2

effective

digits

(any

digit

apart

from

0),

such

as

560

ohm

and

47k

ohm

(tolerance

is

shown

by

J

=

5%,

and

K

=

10%).

Ex.

2

5602

56

x

10!

561

..

47kR2

47x

10°

473

..

RD%*PS

HW

RDYPS

AMG

RN2H

ORK

RSIP

OMG

K

When

there

are

3

effective

digits

(such

as

in

high

precision

metal

film

resis-

0.52

ORS

ooh

ewe

os

In

O10

on

OR

hws

tors).

5.62k2

562x

10'

5621..

RN%SR

BEAHF

e

The

“,

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.

e

For

your

Parts

Stock

Control,

the

fast

moving

items

are

indicated

with

the

marks

kkand

*,

*%

GENERALLY

MOVES

FASTER

THAN

x.

This

classification

shall

be

adjusted

by

each

distributor

because

it

depends

on

model

number

,

temperature,

humidity,

etc.

_

Miscellaneous

Parts

Mark

Symbol

&

Description

Main

assembly

Power

supply

assembly

Meter

assembly

_LED

(A)

assembly

LED

(B)

assembly

Volume

assembly

Transistor

(A)

assembly

Transistor

(B)

assembly

OTHERS

Mark

Ak

we

be.

we

wk

kt

x

A

Symbol

&

Description

T1

Power

transformer

(120V)

$1

Lever

switch

(PLAY)

$2

Lever

switch

(FF)

$3

Spring

switch

(REC)

Motor

with

pulley

REC/PB

head

Erase

head

AC

power

cord

Strain

relief

(for

AC

power

cord)

Main

Assembly

SEMICONDUCTORS

Mark

kr

wt

kt

wk

Symbol

&

Description

Q101—0105,

Q109,

Q201-—-Q205,

Q209,

0305,

0306

Q106

Q107,

Q207

Q108

Q301,

Q302

Part

No.

Non

supply

Non

supply

Non

supply

Non

supply

Non

supply

Non

supply

Non

supply

Non

supply

Part

No.

RTT-373

RSN-034

RSN-033

RSN-025

RXM-088

RPB-118

RPB-085

RDG-048

REC-395

Part

No.

28C1740LN

M5220L

HA12058NT

M5218L

2SC1740LN-S

Mark

xk

kk

*

A

*

Symbol

&

Description

Q303

Q304

D301—D310

0311

D312

SWITCHES

Mark

xk

kk

COILS

Mark

Symbol!

&

Description

$101

Switch

(REC/PB)

$102,$103

Push

switch

(TAPE

SELECTOR)

$104,$105

Push

switch

(DOLBY

NR)

Symbol

&

Description

L101,L201

MPxX

filter

L102,

L103,

L202,

L203

Trap

coil

L104,

L204

S.S.

coil

L105,

L205

Trap

coil

L106,

L206

Peaking

coil

(12mH)

L301

Oscillator

coil

L302

Line

coil

CAPACITORS

Mark

Symbol!

&

Description

C127,

C137, C227,

C237

C125,

C145,

C225,

C245

C128,

C138,

C228,

C238

C129,

C229

C143,

C146,

C154,

C247,

C246,

C254

Part

No.

2SC1741

2SA933LN

182473

RD5.1EB2

(MTZ5.1B)

RD15FB1

Part

No.

RSH-042

RSG-161

RSG-169

Part

No.

RTF-138

RTF-153

RTF-159

RTF-152

RTF-129

RTD-032

RTF-101

Part

No.

CEA

R15M

50

CEA

R33M

50

CEA

R47M

50

CEA

R68M

50

CEA

010M

50

Mark

Symbol

&

Description

Part

No.

C114

CEA

4R7M

50

C115,

C130,

C139, C163,

C215,

CEA

100M

16

“~~

6230,

C239,

C263,

C308

—

C310, C311,

C315

CEA

220M

16

C117,

C141,

C212,

C217,

C244,

CEA

330M

16

C309

C106,

C153,

C206,

C322,

C323

CEA

470M

16

C112,

C253, C307,

C321

CEA

101M

16

C124, C224,

C313

CEA

221M

16

CEANL

010M

50

CEANL

4R7M

25

CEANL

100M

16

C119,

C219

C123,

C135,

C223,

C235

C104,

C109,

C113,

C116,

C120,

C204,

C209,

C213,

C216,

C220

COMA

332J

50

CQMA

472J

50

CQMA

562J

50

CQMA

6824

50

CQMA

8225

50

C303,

C304

C134,

C234

C132,

C151,

C232,

C251

C148,

C248,

C305

C133,

C147,

C233,

C247

CQMA

103J

50

CQMA

153J

50

C108,

C121,

C208,

C227

C110,

C210,

C302

C126,

C226

CQMA

183J

50

C122,

C222

CQMA

333J

50

C136,

C236

CQMA

823J

50

C301

CQPA

562J

100

C103,

C203

CQSA

471K

50

C155,

C255

CCDSL

101K

500

CCDSL

101J

50

CKDYB

471K

50

C105,

C114,

C205,

C214

C102,

C152, C156,

C202,

C256

C142,

C242

CKDYB

681K

50

C312

CDDYF

103Z

50

C101,

C201,

C319,

C320

CKDYF

473Z

50

C131,

C231

CCPSL

390J

50

RESISTORS

Note:

When

ordering

resistors,

convert

the

resistance

value

|

into

code

form,

and

then

rewrite

the

part

no.

as

‘before.

Mark

Symbol

&

Description

Part

No.

*®

V102, V103,

V202,

V203

RCP-223

Semi-fixed

22k-B

*&

V104,

V204

Semi-fixed

150k-B

RCP-228

R124

RD%PMF

561J

A

R328

RSILF

181J

R101,

R103,

R106,

R108,

R109,

RD%PM

OOD

J

R110,

R114,

R115—R120,

R121,

R156,

R158—R161,

R201,

R203,

R206,

R208—R210,

R215—R219,

R220,

R221, R256,

R258—R261,

R265, R301,

R310,

R312,

R316,

R317,

R329,

R340,

R342

Other

resistors

RD1i/6PM

000

J

OTHERS

Mark

‘Symbol

&

Description

Part

No.

Shield

case

RNH-209

Terminal

(LINE)

RKB-020

Phone

jack

with

switch

(MIC

L.R.)

RKN-087

Power

Supply

Assembly

SEMICONDUCTORS

Mark

Symbol

&

Description

Part

No.

A

®

pao1

1B221-LC2

AV

*®

D402

1B2C1-LC2

AY

®

D403,

D404

1SR35-100A

A,

*®

0407,

C408

RD13EB1

(RD13EB2)

(MTZ13A)

(MTZ13B)

SWITCH

Mark

Symbol

&

Description

Part

No.

$401

Push

switch

(POWER)

RSA-063

CAPACITORS

Mark

Symbol

&

Description

Part

No.

A

C401

Ceramic

(0.01/AC250V)

RCG-008

(RCG-012)

C408,

C409

CEA

470M

16

C404

CEA

101M

16

C406

CEA

101M

35

C405

CEA

471M

16

C403

CEA

101M

25

C402,

C407

CEA

102M

35

C411

CKDYF

473Z

50

RESISTORS

Mark

©

Symbol

&

Description

A

R401

R402

A

R403

Meter

Assembly

SEMICONDUCTORS

Mark

Symbol

&

Description

xk

0501,

0502

*

0501—D510

LED

aray

CAPACITORS

Mark

Symbol

&

Description

C503,

C504,

C505

Part

No.

RD%PMF

561J

RD%PM

561d

RD*PMF

102J

Part

No.

BA6124

LN101207PH

Part

No.

CEA

100M

16

RESISTORS

Mark

Symb

R503,

R505,

LED

(A)

As:

SEMICONDUt

Mark

Symbi

*

D601,

LED

(B)

Ass

SEMICONDU(

*

D701,

Volume

Asst

Mark

Symbs

*

V801

Transistor

(/

Mark

Symbxc

AV

**

801

Transistor

(E

Mark

Symbc

A

*k

901

External

App

HA12058NT

i

M5220L

M5218L

RESISTORS

Mark

Symbol

&

Description

R503,

R504

R505,

R506

LED

(A)

Assembly

SEMICONDUCTORS

Mark

Symbol

&

Description

*

D601,

D602

LED

(B)

Assembly

SEMICONDUCTORS

Mark

Symbol

&

Description

*

D701,D702

Volume

Assembly

Mark

Symbol

&

Description

*

=V801

2-gang

variable

(REC

LEVEL)

Transistor

(A)

Assembly

Mark

Symbol

&

Description

A\

%*k

0801

Transistor

(B)

Assembly

Mark

Symbol

&

Description

A

&*

Q901

lou

Je)

W-1-|06-lal-}

6.

PACKING

Part

No.

Mark

No.

Part

No.

Description

1

Bees

1.

RHA-262

Side

pad

4,

RD

AEME

SSS

2.

RHG-714

(for

CT-501)

Packing

case

RHG-720

(for

CT-450)

Packing

case

RHG-757

(for

CT-405)

Packing

case

3.

RRB-234

(for

CT-501)

Operating

instructions

RRB-240

(for

CT-450)

Operating

instructions

RRB-240

(for

CT-405)

Operating

instructions

pure

We

4.

RDE-010

Connection

cord

LN248RPH

Part

No,

LN348GPH

Part

No.

RCV-120

Part

No.

2SD1265

Part

No.

28D1265

External

Appearance

of

Transistors

and

ICs

HA12058NT

16

M5220L

M5218L

2SC1740LN

2SD1265

2SA933LN

Type

No

Suffix

nee

-Lot

No

E

&

8B

BA6124

:

2SC1741

9

Type

No

hee

Lot

No

"

CT-501,450,a05

2

3

7.

P.C.BOARDS

CONNECTION

DIAGRAM

MAIN

ASSEMBLY

Q109

Q202

Q203

Q102

Q103

Q207

Q209

Qiog

A

v202

J105

L

CH

REC/P.B

HEAD

B

RPB-118

R

CH

1

J106

ERASE

HEAD

1

a

een

al

RPB-085

2

VOLUME

ASSEMBLY

070f,702°

oBN3486

RH

es

LED

(B)

ASSEMBLY

10

1

2

3

Qios

aiot

a205

aos

alos

Q204

|

a10s

jay

Q3os

“APE

TRANSPORT

Q106

Q107

Q201

Q301Q

Q

NSSEMBLY

=

POWER

SUPPLY

ASSEMBLY

A

'

|

v2o3

MOTOR

WITH

PULLEY

RXM-088

J107

$3:

REC

RSN-034

TRANSISTOR

(A)

STOP

S{:RSN-025

ASSEMBLY

2801265

TRANSISTOR

(B)

|

0403,404

ASSEMBLY

1SR35-100A

0407,

408

SETS.

2s01265

a.

ROISEBI/2

:

AC{20V

60Hz

AC

POWER

CORD

RDG-

048

Q101~105,

201~

205,109,209,

Q305,

306

§

ye"

“Anite

}

2SCI740LN-R/S

——

=

i ‘ f ’

Laas

‘ial

Qio6

M5220L

;

“att

:

Q107,207

HAIZO58NT

Qios

MS218L

Q301,302

2SCI740LN-S

Q303

2SC1741

Q304

2SA933LN

Ty,

D301~310

182473

D3!

ROSAEB2

or

MTZ5.18

0312

ROISFBt

t.

Ait

ots}

7}

C212"

33/

5

aes,

Q501~

510

j

NIO12Z07PH__

esas

(aw)

D601,

602

LN248RPH

METER

ASSEMBLY

LED

(A)

ASSEMBLY

oS

4

SG

6

7

8

9g

4

-

9

3

4

|

5

|

6

|

_¥

8.

SCHEMATIC

DIAGRAM

MAIN

ASSEMBLY

eee

a

ce

oe

Se

SS

SL

RE

SL

cis2

-

#708

C153

eal

=,

i

IOs

R26

47/6

s60(i/2w)

+1

cass

-Q109,209

cus

UT

to0/i6

SWITCHING

(REC~

ON)

C101

Qi02,

202

>

0047

S101-8/10

FLAT

AMP

ber

H

Ak

‘a

Ras

10k

LINE

INPUT

G__

RUS

3

Rus

g

mat

SI01-2/10

Beh

99

Ek

mee

ea

3

L106

clas

Kiss

.

-

12m

‘0.0068

PB

Q106

102,202

:

1/50

ie

|

usa

ae

itn

PLAYBACK

PB

LEVEL

ADJ.

Ru7

|

f

+

ms

am

ei

‘

22k

EQ

AMP:

cis

aioe

hiee

5.tk

rat

REC

©

1/2)

148)

‘0.0082

RIS!

U

poav

|

DOLBY

OFF}

vi03,203:

‘eb

430

eee

REC/PB

Lao

RIO!

i

REC

LEVEL

ADul

270

]

oer

ae

$102-3/4

$103-3/6

&

vIO3

RPB-118

|

cielo

MPX

FILTER

22k-B

HIGH

©

MET

RI20

0

43k

eo

Cd

'

NOR

CrOe

clas

|

6.33/50

'

|

4

RIES RIOT

,

F

2.24

|

13k

REC

SWITCHING

Q104,

204

MIC

|

‘Soe

(NORM

—OFF)

Q107,

207

REC

MUTING

GATE

r

re

4705

cos

cise

sio2-2/4

DOLBY

NR

B/C

PROCESSOR

IC

:

—

Q108

Q105,

205

:

REC

LEVEL

Q103,

203

AM

"

CONTROL

SWITCHING

5

t

REC

AMP

LINE

MUTIKG

GATE

’

c201

(REC

—

OFF)

J

|

0.047

'

|

R259

e207.

MIC

|

Reh

~

.

5

c2zs

mrc227

Lah

222

+|

peso

czee

'

cosmi"

|

Or

a

ae,

REC/PB

Ls

Blt

HEAD

sen

RPB-118

|

PX

iy

le

LINE

INPUT

meee

S101-3/10

C

C9

og

Rech

'$101-10/10

l

|

t

|

i

VI04,

204

:

REC

BIAS

ADJ.

Vieon-8

|

Q301,

302

3

BIAS

OSCILLATOR

sos|

3

Q304~306

}

MUTING

ERASE

|

27011)

p30s

CONTROL

HEAD

p32

R32

14

RPB-08S

.

[Rec

noRwaL]

5.5

]

[eroe

|

rov]

[neva

—Jreav

>,

'

OSCILLATOR

SWITCH

'

(REC—

ON)

Q101~105,109,201~205

-

i

sigs

RSH-O42

$102,103

RSG-161

Q209,

305.

306

sioarios

|

RSec1

66

2ST

OLN

‘

$106,107

RKN-087

NOTE;

|

aioe

M5220L

LIOl,20t

RTF-138

F

*

cao!

Q107,

207

HAIZO58NT

L102,103,202.

203

Play

back

signal

route

AC

120V

‘

0.01/AC250

voitace

'

i

ATE-

183

Pea

;

60H

R)

RecuLATOR|

,

pb

eae

ile

the

*

Ll04.204

RTF-159

Recording

signal

route

=

|

i

Q301,302

2SCI740LN-

Posto

seeaies

-

:

2801265

Q303

2SC1741

L106.206

RTF-129

'

0401

1B2Z1-LC2

|

‘

'

Q304

2SA933LN

L301

RTD

~032

ROG-

048

.

0402

1B82Cc1-LC2

eae]

-—H

Vine

oiitor

soa

Bact

enoees

ee

Seat

D403,

404

1SR35-100A

TRANSISTOR

(B)

MOTOR

wiTH

ASN-034

D301~310

182473

aes

S401

RSA-063

0407.408

RDISEBI

or

RDISEB2

4

ASSEMBLY

\

ra

oes

$2

RSN-033

to

O31!

RDS.1EB2

of

MTZ5.1B

-

Vi04,204

RCP-

228

’

-

:

She

eta

AES

St

TAPE

TRANSPORT

ASSEMBLY

1

2

3

4

rs)

i

6

7

Bs

RCG-

008

or

RCG-012

or

MTZI3ZA

or

MTZ13B

“a

|

$3

RSN-O25

|

D312

RDISFBI

- - -

ce

ee

ne

ee

=

Oe

-

————————_

I

——————

-

METER

ASSEMBLY

Y)

cist

0.0056

$103-3/4

MET

Croke

2

JO2

[Pin

no.

|

1.2,3.4,6

|

ee

[eo

on

|

a.zv

|

2k

160

!

4

fs

A

Q501,

502

iss

?

r

]

LEVEL

METER

DRIVER

SATE

3

!

‘

LINE

;

|

CINE

it

|

D501~510

LN101207PH

’

R259

1

ER

e505

oh

s

1/6

LED

(A)

ASSEMBLY

[

DéO1,602.

\

LN248RPH

Jos

|

LEO

ON

1

[2]

060!

2

Gy

4

rec

|

1

Op

602

3

[2]

Oe

a7)

Po

L_.

LED

(B)

ASSEMBLY

°

-—o——

™

°

Pa

Za

i

ie

o702

DOLBY

NR

2

Yo:

ays

s04

0701,702

l

LN348GPH

S101

RSH-042

:

$102,103

RSG-161

$104,105

RSG-160

$106,107

RKN-O87

LIOi,201

RTF-138

L102,103,202.

203

RTF-

183

OD

L104,204

RTF-159

L108,205

RTF-152

106.206

RTF-129

'

L301

RTO

-O32

L302

RTF-101

V102,103,202,203

RCP-

223

VI04,204

RCP-

228

7

|

os01

0503

0505

©

,©

H

LAS.

AEA

AS

a

=

ye

le

eee,

|

NOTE:

CT-501,450,405

The

indicated

semiconductors

are

representative

ones

only.

Other

alternative

semiconductors

may

be

used

and

are

listed

in

the

parts

list.

LED

ON

OFF

0507

0509

[22

fe)

Se

tirew)

R503

oh

10x

+

Y)

0508

0510

1.

RESISTORS:

Indicated

in

2,

%W,

YeW.+5%

tolerance

unless

otherwise

noted

k

:k2,

M:

MQ,

(F)

:

£1%,

(G)

:

22%,

(K)

:

10%

(M);

t20%

tolerance

2.

CAPACITORS:

s

Indicated

in

capacity

(uF)/voltage

(V)

unless

otherwise

noted

p

:

pF

Indication

without

voltage

is

50V

except

electrolytic

capacitor.

3.

VOLTAGE

J

:

OC

voitage

(V)

at

no

input

signal

4.

OTHERS:

jignal

route.

@

:

Adjusting

point.

The

A\

mark

found

on

some

component

parts

indicates

the

im-

portance

of

the

safety

factor

of

the

part.

Therefore,

when

replacing,

be

sure

to

use

parts

of

identical

designation.

%

marked

capacitors

and

resistors

have

parts

numbers.

This

is

the

basic

schematic

diagram,

but

the

actual

circuit

may

vary

due

to

improvements

in

design.

SWITCHES:

$1:

PLAY

—

STOP

$2:

FF

—

OFF

$3:

REC

ON

—

OFF

$101

:

REC/PLAY

SELECTOR

REC

—

PLAY

$102:

TAPE

SELECTOR

HIGH

~

NORMAL

$103:

TAPE

SELECTOR

METAL

—

CrO2

$104:

DOLBY

NR

ON-

OFF

S105:

DOLBY

NR

c-B

S106:

INPUT

SELECTOR

(R.CH.)

MIC

—

LINE

S107:

INPUT

SELECTOR

(L.CH.)

MIC

—

LINE

POWER

SUPPLY

ASSEMBLY

$401:

POWER

ON

-

OFF

The

underlined

indicates

the

switch

position.

8

15

CT-S01,450,405__

9.

BLOCK

DIAGRAM

FLAT

AMP

eon

peas

|

FILTE:

LINE

REC

y

|

Baiay

|

INPUT

A

8107

LEVEL

7

Pil

TMIC

Tn

aes

i)

|

Qi02

1

‘

REC/P.B

HEAD

$101-3

OO

oO

|

:

a4

MIC

e

ERASE

eee

HEAD

|

tH

D306

|

i

QQ

Q303

an

D303

=

NORM

Oey

FF

OO

cr02z

6

5

rH

P

Ip

;

th

oe

eae

D309

O

0

METAL

HIGH

'

STOP

:

S103-2

$102-2

ae

|

'Q306

ag

'

:

C406

TH

POWER

TRANSFORMER

ACI20V

Ea6i

60Hz

$404

|

D401,

402

=

pemeie)

POWER

SUPPLY

CIRCUIT

16

,

10.

co

DOLBY

NR

PROCESSOR

+25dB

REC

AMP

FILTER

ae

>

462mv

_NorM

[41amv

PB

IN

OFF/B/C

30

29

REC/PB

cs

Q104

EXPLODED

VIEWS

AND

PARTS

LIST

NOTES:

e

Parts

without

part

number

cannot

be

supplied,

e

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.

e

For

your

Parts

Stock

Control,

the

fast

moving

items

are

indicated

with

the

marks

xk

and

x.

ke

GENERALLY

MOVES

FASTER

THAN

x.

;

This

classification

shall

be

adjusted

by

each

distributor

because

it

depends

on

model

number,

temperature,

humidity,

etc.

Parts

List

of

Exterior

ee

eee

a

REC

=

Bi

Cc

ae

~

Mark

No.

Part

No.

Description

Mark

No.

Part

No.

Description

1.

RNA-647

(for

CT-501)

Bonnet

case

A

26

RODG-048

AC

power

cord

RNA-648

(for

CT-450)

Bonnet

case

A

27.

REC-395

Strain

relief

RNA-648

(for

CT-405)

Bonnet

case

28.

RNL-844

Power

knob

Sa

ee

oe

2.

BBZ30PO80FMC

Screw

3x

8

29.

PMA30PO60FMC

Screw

3

x

6

ace

METALS

3.

RBL-061

Eject

spring

30.

REC-369

Foot

assembly

“

és

4.

RNL845

Eject

knob

S102-3

y

|

5.

RAD-249

Knob

cap

31.

Refer

to

pp.

21-24

Tape

transport

unit

P

croz

|$103

32.

Counter

holder

NORM

ia

6.

RNT-045

(for

CT-501)

Panel

stay

33.

LED

(A)

assembly

RNT-047

(for

CT-450)

Panel

stay

34.

Meter

assembly

RNT-055

(for

CT-405)

Panel

stay

35.

LED

(B)

assembly

7.

REB-513

Skid

CONTROL

CIRCUIT

8.

RAA-395

Knob

(REC

LEVEL)

36.

Volume

assembly

te

eee

St

wk

9,

RXX-456

(for

CT-501)

Door

assembly

37.

Shield

plate

ees

RXX-457

(for

CT-450)

Door

assembly

38.

Grounding

plate

-

:

RXX-458

(for

CT-405)

Door

assembly

39.

Main

assembly

$

abaee

|

peony

|

jee

ine

10.

40.

Spacer

|

1

es

11.

RAH-516

(for

CT-501)

Meter

panel

41.

Power

supply

assembly

RAH-517

(for

CT-450)

Meter

panel

42.

Stud

RAH-543

(for

CT-405)

Meter

panel

43.

Transistor

(A)

assembly

!

;

12.

RAH-513

(for

CT-501)

Front

panel

44,

Transistor

(B)

assembly

|

Soi.

émv|

ei

eeace:

RAH-515

(for

CT-450)

Front

panel

45.

Chassis

es

|

Sieg

Bicae

sicdy

a

eaon

RAH-542

(for

CT-405)

Front

panel

O

S20:

FF

—

OFF.

13.

RNL-838

Cassette

plate

us

53:

REC

ON

—

OFF

14,

REE-081

Shining

paper

aey

S101:

REC/PLAY

SELECTOR

REC

—PLAY

16:

-—RACAIA

ar

C1301)

Knob

theY)

>

B2

S102:

TAPE

SELECTOR

igi:

NORMAL

RAC-402

(for

CT-450)

Knob

(REC)

ae

CS)

305

_

$103:

TAPE

SELECTOR

METAL

—

CrOz

RAC-402

(for

CT-405)

Knob

(REC)

+)

jaa

S104:

DOLBY

NR

ON

—

OFF

16.

RAC-403

(for

CT-501)

Knob

(PLAY

FF,

REW,

Cy

$105:

DOLBY

NR

c-

8B

PAUSE)

xc]

S106:

INPUT

SELECTOR{R

CH)

MIC

~

LINE

RAC-390

(for

CT-450)

Knob

(PLAY,

FF,

REW,

‘

(¥)

yy)

¥)

S107:

INPUT

SELECTOR(LCH)

MIC

—

LINE

PAUSE)

y

$401:

POWER

ON

—

OFF.

RAC-390

(for

CT-405)

Knob

(PLAY,

FF,

REW,

C

|

{

The

underlined

indicates

the

switch

position.

PAUSE)

47.

RAC-404

(for

CT-501)

Knob

(STOP)

RAC-391

(for

CT-450)

Knob

(STOP)

LEVEL

METER

ORIVE

RAC-391

(for

CT-405)

Knob

(STOP)

*kk

18.

REB-369

Counter

belt

~ -

19.

RAW-203

Tape

counter

LEVEL

METER

20.

RBL-062

REC

joint

°

"21.

RNL-861

Rod

B

oF

ey

=

22.

RNL-860

Rod

A

23.

RAD-280

Knob

cap

A

(DOLBY

NR)

24.

RNL-846

Rod

A

&

25

RTT-373

Power

transformer

(120V)

18

*

T

ly

ae

a

s

0.

ghee

ae

Tape

Transport

Unit

CT-501,450,405

Exterior

Ly

Oh,

AREY

/P

ENS

{e/

Sk

By

ee

ore

MQ)

a

CY

Tis

WS

yee

4A!

f

\

y

Fg

AS

YA

20

Oo

T

:

oO.

Ty)

t

ee

Tape

Transport

Unit

CT-501,450,405

e

Parts

without

part

number

cannot

be

supplied.

e

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.

e

For

your

Parts

Stock

Control,

the

fast

moving

iterns

are

indicated

with

the

marks

kkk

and

*.

*#k

GENERALLY

MOVES

FASTER

THAN

*.

This

classification

shall

be

adjusted

by

each

distributor

because

it

depends

on

model

number,

temperature,

humidity,

etc.

Parts

List

of

Tape

Transport

Unit

Mark

No.

Part

No.

Oe

Os

wk

11,

we

13,

14,

15.

17,

18.

19.

20.

21.

22.

**

23.

24.

25,

on

cen

26.

*®

27.

28.

29.

30.

wk

31,

32.

33.

34.

35,

36.

37.

38.

39.

40.

Senne

VCZ26P090FMC

RNK-995

REB-447

RNL-329

RNL-291

YE25FUC

RBH-871

VCZ26PO060F

MC

PSZ20PO60F

MC

WA21D040D25

RXB-377

RBF-057

RXB-360

RBH-885

RBF-071

RNL-318

RED-194

RNK-998

RNL-298

RBH-873

RBH-875

RXB-579

RNL-337

WA17D040D025

RBH-874

RNL-050

RPB-085

PMZ20P130FMC

iMZ20Y120FMC

PMZ20P120FMC

RPB-118

RBH-723

RBH-782

RNL-057

RNL-439

BB2Z26P080FZK

RNL-440

RNL-058

RNL-284

RBH-883

Description

Mark

No.

Part

No.

Description

Screw

2.6

x

9

41.

RBK-166

Half

set

spring

Cylinder

42.

RNL-322

Cam

gear

O-ring

43.

RBE-021

Washer

Piston

44,

NK9OF

Cr

Nut

Eject

lever

45.

RBF0O30

Oil

stopper

Washer

E-type

46.

RBH-890

Pinch

pressure

spring

Pocket

return

spring

*k

47,

RXB495

Pinch

arm

assembly

Screw

2.6

x

6

48.

YE20FUC

Washer

E-type

Screw

2x

6

kk

49,

RSN034

Lever

switch

($1)

Washer

50.

RNL-334

Ratchet

holder

Supply

reel

base

assembly

51.

RBH-888

Ratchet

spring

Washer

52.

RBH-870

Ratchet

TU

reel

base

assembly

53.

RXB-577

Drive

arm

full

assembly

Detector

spring

54.

RXB-976

Drive

pulley

assembly

Washer

55.

YE15FUC

Washer

E-type

Detector

disk

kk

56.

REB455

Drive

belt

B

Detector

felt

57.

RBH-876

Gear

lever

spring

A

Idler

gear

58.

RNL-297

Gear

lever

A

Action

lever

59.

RBH-877

Gear

lever

spring

B

Idler

pressure

spring

60.

RNL-282

Gear

lever

B

Action

lever

spring

61.

RNL-296

Gear

jever

C

Idier

arm

full

assembly

62.

RXB-576

Flywheel

assembly

.

TU

idler

kk

63.

REB453

Capstan

belt

Washer

;

wk

64.

REB454

Drive

beit

A

HB

return

spring

65.

RNL-288

Cam

gear

Sub-head

base

66.

RBH-879

Trigger

spring

Erase

head

67.

RNL-280

Brake

piate

Screw

2

x

13

68.

RBH-884

Action

plate

spring

Screw

2x

12

69.

REB466

Brake

shoe

Screw

2x

12

70.

RNLS11

FF

action

plate

REC/PB

head

71.

RBH-916

Action

plate

spring

|

Head

adjust

spring

72.

RNL-810

REW

action

plate

HB

drive

spring

Tk

YS20F

BT

Washer

C-type

Pocket

spring

L

74.

RNL-275

Link

Pocket

L

75.

RNL-274

Detector

lever

Screw

2.6

x

8

76.

RBH-886

Link

return

spring

Pocket

R

77.

RNL-289

Stop

lever

Pocket

spring

R

78,

RXB670

Metal

hoider

A

assentsly

REC

detector

arm

79.

RNL-812

Joint

L

Detector

arm

spring

80.

RNL-276

Joint

R

23

Pioneer CT-501 User manual

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