Pioneer Ct-7r User manual

dW)

PIONEER’

Service

BACCARAT

AA

OANA,

Bed

Ef

eet

ORDER

NO.

This

photograph

is

CT-7R.

ARP-001-0

STEREO

CASSETTE

TAPE

DECK

T=7R

CT-6R

PIONEER

ELECTRONIC

CORPORATION

4-1.

Meguro

1-Chome,

Meguro-ku,

Tokyo

153,

Japan

U.S.

PIONEER

ELECTRONICS

CORPORATION

&5

Oxford

Drive,

Moonachie,

New

Jersey

07074,

US.A

PIONEER

ELECTRONIC

(EUROPE)

N.V.

Luithagen-Haven

9,

2030

Antwerp,

Belgium

PIONEER

ELECTRONICS

AUSTRALIA

PTY.

LTD.

178-184

Boundary

Road,

Braeside,

Victoria

3195.

Australia

YZ

©ONOV.1981

Printed

in

Japan

CT-7R/6R

1.

MECHANICAL

DESCRIPTIONS

1.1

Mechanism

Operation

The

various

mechanical

sections

of

the

recorder

are

operated

using

the

capstan

motor

to

provide

the

driving

force.

The

various

modes

are

activated

by

solenoid

L

and

R,

and

these

are

controlled

by

commands

from

CPU

PD6006.

Both

the

capstan

and

reel-motor

are

direct-

drive

motors

fitted

with

a

Hall

sensing

element.

Reel-motor

L

and

reel-motor

R

(hereafter

called

RM

L,

RM

R)

are

used

exclusively

for

tape

take-up

in

the

FF,

REW,

PLAY,

and

REC/PLAY

modes.

The

direction

of

rotation

and

rotational

speed

of

these

motors

are

controlled

by

commands

from

CPU

PD6006.

The

right

side

capstan

motor

is

the

DD

type,

and

the

left

side

capstan

motor

is

belt-driven

by

the

right

side-motor.

A

sub-rotor

acts

as

the

actual

capstan.

(Refer

to

Fig.

1-1).

The

mechanism

forming

the

right

and

left-hand

side

of

the

unit

is

essentially

symmetrical

in

configuration,

and

in

forward

and

reverse

(here-

after

abbreviated

FWD, REV)

operations,

each

side

acts

together.

This

description

covers

the

mechanical

operations

for

FWD

movement.

=

Basic

Operations

of

the

Mechanism

The

mechanism

assumes

three

different

states:

STOP,

PAUSE,

and

PLAY.

Consequently,

since

it

can

travel

in

the

FWD

and

REV

direction,

there

are

a

total

of

six

states

possible.

There

is

also

a

direction

operation

for

switching

between

FWD

and

REV

travel.

Transition

between

the

FWD

and

REV

state

will

be

described

using

only

one

example.

When

the

mechanism,

presently

in

the

FWD-

PLAY

mode,

is

switched

to

the

REV-PLAY

mode,

a

direction

operation

is

required,

then

the

mecha-

nism

will

make

the

transition

following

the

steps

listed

below.

(Refer

to

Fig.

1-2).

Solenoid

L,

Solenoid

R

ans

|

Fig.

1-1

Mechanical

construction

STOP

state

STOP,

DIRECTION

(DIR)

PAUSE,

PLAY/PAUSE

,

|

PAUSE

state

REC-PLAY

/

PAUSE,

FF,

REW.

PLAY

state

PLAY,

REC/PLAY.

Fig.

1-3.

Mechanism

mode

transition

flow

and

modes

1

2

2.P.C.

BOARD

PATTERNS

Mother

Assembly

(RWX-593)

Q340

is}

CNB“.

acaoo0o0oo0ag00000

1¢302

Q302

Q306

Q307

Q303

etre

tee

ee

OEE

TIE

ORE

ME

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Q309

VR303

311

Q310

L306

VR301

VR3O5S

TP302

TP

IC304

1C303

Q324

Q327

Q304

9305

Q320

TP301

303

Q3zi9

Q3xi6

1c305

QH15

Q314

Q3i3

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1K

OA

7

OA90

7

Dolby

NR

Assembly

(RWX-5

Amplifier

Assembly

(RWF-1

Q508

Q502

Q504

Qs06

Q5i4

vR502

Qso1=

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a

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2)

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a

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T

Ww

=.

Oo

|

4

=)

x

ig

0

|

Le

0.

Tape

Transport

Mechanism

RYM-157

@oOe

o@

FUNCTION

SWITCH

Assy

RWS-1i40

és

ee

ai

s

"

Xe

«{\

4

Sg0j

REC

MUTE

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e

;

3

nae

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INDICATOR

Assy

RAW-

163

CC

O--O

©

y)

4

LEDII07

F

(Cr02)

LED1108

¢

(METAL)

LEDI109

¥

(DOLBY:

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LEDI410

$(

DOLBY-C)

(ps)

Nt

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(mi

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(ps)

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1

2 3

4

5

|

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3.

SCHEMATIC

DIAGRAM

Signal

and

Control

Section

DOLBY

Ass'y

(RD

sor?

DOLBY

Ass'y

(R)

602-2

601-3

601-4

MOTHER

Ass’yit/3)

a

602-1!

—

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SWITCH

Ass’y

Cole?

:

602-2

601-4

601

-10

60

A

60224

‘Joovey

Ass'y

(L)

ts

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us

Si

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(172)

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545

=

©

:

Se

eenose

we

seanarae

D301~

303,307.31,

313,314

cd

t

$801.

INPUT

SELECTOR

MOTHER

REC

1S2473

or

USIO40

RKN-O75,

Ass'y

(2/3)

BE

Bie

at

in?

Q301,

IC

30!

1¢306

803

MUTING

Tc40668P

MBB

40668)

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ed

rie

wr

at

1C301

MB74LSI22

or

HD74LSI22

$302,303

99LeY

Ne

HO140668

or

SN74LS122

or

DM74LSI22 SWITCHING

bmg

van701-2

1¢30

(v7

VR701:

INPUT

R822

RCV-

096

Q803,

804

:

FLAT

AMP

1

3

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grr

{

\

301-2

Q80IX804

2SCI740LN

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nec

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|

2SC2021

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1

REC

a

2SC2634NC

|

R

meee

Seni

Nio

0308

,309

2501189

_

or

CAPSTAN

Ne

28C2437

or

2SD882

CONTROL

Ass'y

Nr

osc

REC

L

0333

,

335

a

VR301,

302

1S2473

or

AMP

Assty

RWF

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Q310:

SWITCHING

(REC

-=

ON)

US1040

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100%

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2SCI8I5

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9305

208

2SC2634NC

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?

EQUALIZER

AMP

25C2634NC

(NORM

==

OFF)

NJM4558D_

or

2SC1BIS

or

ANG552

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2sC2021

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KTCIBIS

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12

14

oa

BA4558

FU301

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064

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12473

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508

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AMP

0320

,

329,330

0323,

325

{$2473

or

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a

3.7?

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DATA

CLOCK

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out

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PAUSE

REC

neers

1K34A

or

1K60A

or

34!

50)

OA90

SWITCHES

Q3i

,

313,316

St.

POWER

ON

-

OFF

REC

R

2SD880

or

250313

0319,

320

53.

LINE

VOLTAGE

SELECTOR

AC220v

~

AC240V

POWER

ON/OFF

$301.

MPX

FILTER

ON

-

OFF

MUTING

$302

DOLBY

NR

ON

-

OFF

$303.

DOLBY

NR

TYPE_B

-

TYPE

C

Q313%

316

Q320

oT

:

pee

S701:

MODE

=

-

pe)

-O

REMOTE

CONTROL

Ass'y

FUNCTION

SWITCH

Ass'y

RWS

-

140

REGULATOR

2SAQ933LN

or

2SAI0I5

or

$702:

TIMER

REC

-

OFF

-

PLAY

x

peter

ll

suena

os

_

Pond

2SAN27NC

or

$801:

INPUT

SELECTOR

LINE

—MIC

REMOTE

CONTROL

SOCKET

Dae

S901

202

5000,

R=

800

en

gr

REC

MUT

ON

-

OFF

=

.

3902

S201

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UE

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sToP

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Seteodirag

DIRECTION

S8O7

Rew.

5905

pause

S90:

EC”

S90!

$902.

REC

ON

—

OFF

REC

eS

Rew

INDEX

SKIP

stop

fF

PLay

REC

$903:

PLAY

ON

-

OFF

ae

SCAN

TE

a

—

$4444444$<4-

4-4

$904:

PAUSE

ON

-

OFF

!

|

i

6

a

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a

2

s905.

FF

ON

-

OFE

|

i

S906:

REW

ON

-

OFF

bated

tg

P

120]

ry

$907.

sToP

ON

-

OFF

y

ayfono

$908

DIRECTION

ON

-

OFF

$909.

SKIP

ON

~

OFF

(aie,

(A

ee

eeeeneeern

S910:

INDEX

SCAN

ON

-

OFF

z

ae

‘

[a

The

underlined

indicates

the

switch

position

6t3s

2

@

4

75

J

‘2

ae

Se

8

'

This

is

the

basic

schematic

chayram,

but the

actual

circuit

may

vary

due

to

improvements

in

design

Ma

M3

Ne

N6

——

a

|

REEL

MOTOR

=

CAPSTAN

CONTROL

Ass'y

CONTROL

Ass'y

~

-

eee

ee

was

ae

ain

|

ae

ee

nein

onan

a

ea

he

oe

NR

ag

Sl

cacy

a

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SE

Re

ln

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tia

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=

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.

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tee

Sel

ni

aw

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aes

Wo

spare

eer

amnecanncaetaae

’

i

1

CT-6R/HE,

HB,HP

NOTE:

The

indicated

semiconductors

are

representative

ones

Dorey

Ass'y

(R)

only.

Other

alternative

semiconductors

may

be

used

and

ee)

. .

.

601-3

601-4

601-6

601-11

601-5

GOI-12

601-8

602-460I-2

6OI-!

601-7

are

listed

in

the

parts

list.

DOLBY

Ass’y

(L)

-

m

601-4

601

-10

601-6

[601-5

6GOI-1t

601-8

601-12

602-4

601-1

601-2

601-7

x8

|

Q

f)

cAoPHones

ee

desly

A

|

ne26

9

1

(272)

POWER

SUPPLY

CIRCUIT

FOR

HP

MODEL

|

L

wettest

au

|

-6

=

Ty

t

*

mes

ae

DOLBY

Ass'y

(L)

TC4066BP

or

d

602-3

°

ee

eee

See

R

a

MB84066BM

or

eas

a

HD14066B

hoe:

Sue

302

pase

F

SWITCHING

22/50

18%

(172)

100

INDICATOR

Ass’y

9

8

RBS

lore

—_—

.

-

:

i

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S3.LINE

VOLTAGE

77h

SELECT.

ee)

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aan

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o

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2

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(276)

(376)

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(5/6)

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LEDNOS

307

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MECHANISM

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335

28¢2021

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8)

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2

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&

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320

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CONTROL

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|

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POWER

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1€304,

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VOLTAGE

SELECTOR

MS

RSX

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045

x40l:

MUTE

IN

GAIN

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RAW-161

6

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OATA

CLOCK

STB

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PAUSE

aie

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METER

DRIVE

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KEY

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MS

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35

32

33

39

16

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8 c

0,

$303-2

|

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ON

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320

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309

304

302

meee

1.

RESISTORS:

4.

OTHERS:

Indicated

in

2,

“W,

+5%

tolerance

unless

otherwise

noted

k

:

k{?,

a>

|

Signal

route.

Rep

iers

M

=

Ma,

(EF):

+

1%, (G)

:

+2%,

(K)

:

10%tolerance

@

:

Adjusting

point.

cone

ArSTAN

4,

CAPSTAN

CONTROL

Ass'y

The

A

mark

found

on

some

component

parts

indicates

the

im-

NI

y

2.

CAPACITORS:

portance

of

the

safety

factor

of

the

part.

Therefore,

when

replacing,

Indicated

in

capacity

(uF)

‘voltage

(V)

unless

otherwise

noted

p

>

pF

be

sure

to

use

parts

of

identical

designation.

indication

without

voltage

is

50V

except

electrolytic

capacitor.

3

VOLTAGE

“]

OC

voltage

(V)

at

no

input

signal

/

8

g

10

IC1001

,

1062

'

IR2EO2

LEVEL

METER

RIVER,

7

8

Dolby

NR

Assembly

(RWX-597)

181

3202)

2S

C2639

NO

oReteneenmen

Amplifier

Assembly

(RWF-105)

Q513

Q505

Q503

Q501

Q507

vVRSO1

L503

Q508

Q502

Q504

Q506

Q514

vR502

est

: :

P

©

Revs

470K

C517

0,024

Eth

hye

i

Pes

Ee

aE

ECTS

|]

we

0506)

FC

NS

OF

182473

or

US1040

Jack

Assembly

(RWX-575)

1

aweeee

80)

804"2SC1740LN

br

256202

RO

ER

CN

Te

Of

2501815

or

2SC2634N

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Q509

L504

L501

1504.

momo"

R548

Pee

ee

ey

el

Qs10

Ic501

Qs12

L502

0K

@

PIC

SOWNIM

45580

or

a

ANG

B52

nt

BAS

2SA933LN

2SC1740LN

2SA937

2S8C2021

2SA1015

2SC1815

2SC2240

2SA1127NC

2SC2634NC

2SC1383NC

2SC2060

10

tT

ae

ical

28C2497

leer

M5218L

Type

No.

Lot

No

hre

bre

E

©

8

EC

;

IR2E02

ne

PA2007

PA2009

2SC2673

PA3010

Type

No

hFE

Type

No

Lot

No

Eces

Ee

c

)

Lot

No

Type

No

hee

2SD313

PA2012

2SD880

€

c

8

Type

No

2SD882

hee

Lot

No

€

c

8

hee.

Type

No

2SD1189

PM3001

Lot

No

E

c

8

PA3012

Taps.

Ne

AN6552

WU

BA4558

hre

Fot'No

NJM4558D

index

€

c

10

11

12

(HMMWV

10

3.

SCHEMATIC

DIAGRAMS

(KU

AND

KC

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switch

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M4

M3

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N6

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Ass'y

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2

3

4

)

6

7

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CF

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(LIRWX-597

(KC,KU,HE,HBHP)

IC601

PA3OIZ

RWX-567(0,0/G)

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NR

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TYPE)

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:

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11)

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VOL

TA

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a

com

RWX-595

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HE,

HP)

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3-8

3-6

MOTHER

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y

(3/3)

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KU)

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4

.

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3

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3

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of

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or

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or

2SC2021-R

or

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DOLBY

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nec

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47

1750

7

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311,

313

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or

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182473

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|

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POWER

ON

1€303

PM3001

MECHANISM/

MUTING

CONTROL

0314,

315,319

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or

2SC2634NC-R

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of

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bail

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(DIRECTION--ON)

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25Ci815-)

a

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7

9

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STB BLE

PAUSE

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SONG

KEY

OUT

MS

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5d

pe

2SA933LN-R

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2$A937-R

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2SA10IS-Y

of

2SAIIZ7NC-

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1S2473

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eR

RI

gee

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NOTE:

The

indicated

semiconductors

are

representative

ones

only.

Other

alternative

semiconductors

may

be

used

and

are

listed

in

the

parts

list.

INDICATOR

Assy

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163

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G

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10

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LEDIO#

12

Pioneer CT-7R User manual

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