Pioneer Ct-91a User manual

)

PIONEER

~The

future

of

|

sound

and

vision

‘

Export

destination

:

ae

gare

A

+

‘ACZOV,

,

AON

Cewitchabe)

:

-

"|,

European

cont

ese

oS

|

acttov,

120V-127v,

220,

240v

(ewitchabe)

pre

Kingdom

of

Saudi

Arabia

and

general

market

“se

Change’

the.

primary

wiring

‘of

the

power

transformer.

.

This.

manual

i

is.

applicable:

to

pe

CT-

SEN.

and

SD

‘types.

.

For.

the

sD

type,

refer

to

pages:

4

ee

e

Ce

manuel

pour

le

service

comprend

le

expitestions.

en

1

frangais

de

réglage.

o

Este

‘manual

de

servicio.

trata

del.

método

ajuste

escrito

en

espafiol.

inne

2.

pine

5.

6.

|

We

a

8.

9.

PIONEER

ELECTRONIC

COR

ORATION.

4-1

wage.

1-

“Chemie,

gire-kn,

Tohgo

t

153,

Japan:

NEER

ELECTRONICS

SERVICE

INC,

P.O.

Box

17

ong

Beach,

California

9080L

USA.

PIONEER

ELECTRONICS

OF

CANADA,

INC.

505

Cochrane

Biv,

Markham,

Ontario

L3R

BES

C

Canada

MOHSEN

ELEC

TNONG

E-USOPEL

IY.

eee

40

Beveren,

Belgium

PIONEER

E

)

AUSTRALIA

P

4

Eaonny

Fe

feed

craesie,

Victoria

3196,

“Australia

TEL:

[03]

580-9911.

-)

PIONEER

ELECTRONIC

CORPORATION

7

TORO

ga

APR

1900

Printed

in,

Japan

1.

SPECIFICATIONS

Systems

sce

es

Meer

eee

sek

re

se

eee ees

4

track,

2-channel

stereo

Heads:

-ssscs

erst

ere

r

cree

er

eces

Recording

and

playback

head

Laser

amorphous

playback

head/

Hard

permalloy

recording

head

combination

x

1

Erasing

head:

(Ferrite

head)

x

1

MOtors

seserrressecerresreerersens

DC

servo

capstan

motor

x

1

DC

reel

motor

x

1

DC

auxiliary

motor

x

1

Wow

&

flutlerss

ssc

reer

crest

eee

ence

tence

neces

0.022%

(WRMS)

+

0.052%

(DIN)

Fast

winding

time

+++

errr

r

eter

eee

Approximately

80

seconds

(C-60

tape)

Frequency

response

(-20

dB

recording)

Metal

tape

corre

eee

er

rece

tree

ee

eeene

ee

15

Hz

to

23,000

Hz

Chrome

tape

-:-

+++

15

Hz

to

21,000

Hz

Normal

tape

ssccsssrser

essere

ee

eeceee

15

Hz

to

21,000

Hz

Signal-to-noise

ratio

DOLBY

NR

OFF

eee

ey

More

than

60

dB

Noise

reduction

effect

DOLBY

B-type

NR

ON

--

More

than

10

dB

(at

5

kHz)

DOLBY

C-type

NR

ON

More

than

19

dB

(at

5

kHz)

Harmonic

distortion

-

--

No

more

than

0.6%

(0

dB)

LINE:

67

mV

(Input

impedance:

50

k

Q

)

(0)

)

eee

LINE:

316

mV

(Output

impedance:

1.4

k

Q)

Headphones:

0.8

mW

(Load

impedance

8

2

VR

Max.)

Subfunctions

3-mode

Counter

(4-digit

electronic

counter)

Auto

Tape

Loose

Canceller

function

Meter

Range

Selection

(wide/expanded

range}

Auto

Monitor

Function

(TAPE/SOURCE

auto

selection)

Power

Eject

(OPEN/CLOSE)

Music

Search

(over

+

15

selections)

Tape

Return/Return

Play

Headphones

jack

(with

volume

control)

Bias

control

Rec

calibration

level

control

MPX

Filter

Auto

Space

Recording

Mute

Auto

Tape

Selector

Playback/Recording

timer

start

function

Dolby

B-type

and

C-type

Noise

Reduction

Systems

Dolby

HX

Pro

system

FL

Level

Meter

Peak-hold

function

(15

+

1

segments)

eeoeeererereeoerere

eee

eo

Miscellaneous

Power

requirements

U.S.,

Canadian

models

-++++++++rsrereereres

AC

120V

60

Hz

U.S.

militaly,

other

destination

models

-+++++++++++++++esere-

~AC

110V/120

—

127V/220V/240V

(switchable),

50/60

Hz

Power

consumption

U.S.,

Canadian

models

«++

++

-+++++-+-

++

26W

U.S.

militaly,

other

destination

models

-++++++++++++r+5+

28w

Dimensions

-----+-+++e+sesee+

457(W)

x

133.5(H)

x

372(D)

mm

Weight

(without

package)

+

+--+

++

1er

se

eeeee

cree

eer ere

eee

10.8

kg

Accessories

Operating

instructions

Connecting

Cords

----++ssesrere

cece

esse

etter

este

ester

rears

NOTE:

Specifications

and

design

subject

to

possible

modifications

without

notice,

due

to

improvements.

2.

PANEL

FACILITIES

@®

POWER

switch

Turns

the

power

on

and

off.

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.

@®

Cassette

door

OPEN/CLOSE

button

NOTE:

ff

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

oné

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.

*

Normal

tape

counter

¢

Time

counter

(displays

the

elapsed

playback

or

recording

time)

¢

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.

(ae

C90

—»=

C80L—e

C60

—e

ae

ed

©

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

Systems

circuits

ON

or

OFF.

B/C:

With

the

ON/OFF

switch

in

the

ON

position,

Dolby

B-type

NR

or

C-type

NR

can

be

selected

with

this

switch.

@

MPX

FILTER

switch

Set

this

switch

to

ON

when

recording

FM

broadcasts

with

one

of

the

Dolby

NR

systems.

®

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

Used

for

adjusting

the

volume

when

listening

with

needphones.

@

PHONES

jack

For

connection

of

standard

stereo

headphones.

@

Cassette

door

Open

and

close

this

door

by

pressing

the

OPEN/CLOSE

button

for

insertion

or

removal

of

the

tape.

@

Rewind

(«#4)

button

Press

this

button

to

rewind

the

tape.

Also,

this

button

is

used

for

music

search

during

playback.

®

Stop

(mi)

button

®

Play

(»)

button

@

Fast

forward

(»»

)

button

Press

this

button

to

fast

forward

the

tape.

Also,

this

button

is

used

for

music

search

during

playback.

@

Recording

(@)

button

When

this

button

is

pressed,

the

unit

is

set

to

one-touch

recording

pause

(recording

standby

mode).

®

Pause

(91)

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

(Q)

button

Press

this

button

to

create

an

unrecorded

space

during

recording.

@

METER RANGE

selector

Selects

wide

or

expanded

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.

Normaily,

however,

the

unit

will

automatically

select

tape

playback

sound

after

playback

has

started

or

the

just

recorded

sound

after

recording

has

started.

@

REC

CALIBRATION

BIAS

control

It

is

possible

to

adjust

the

bias

according

to

the

tape

used

and

the

source

to

be

recorded.

©

@

REC

CALIBRATION

LEVEL

control

The

AUTO

TAPE

SELECTOR

of

this unit

matches

the

recording

characteristics

with

the

tape

used.

Proper

adjustment

of

the

REC

CALIBRATION

LEVEL

contro!

permits

optimum

use

of

the

given

tape

characteristics

for

even

better

recording

results.

@

OPERATING

DISPLAY

sees

ew

MC

we

wm

-3s

25

20

10-8

.4

2

6

vam.

ONDE

ANAND

BERN

Osene

suNet

©

Counter

*

The

counter

has

three

display

modes.

¢

If

the

cassette

door

is

open,

the

message

“OPEN’

is

displayed.

¢

During

music

search

the

number

of

selections

is

displayed.

@

TAPE

RETURN

Lights

up

during

tape

retum

operation.

©

Tape

transport

modes

4:

Lights

up

when

rewinding

the

tape.

>:

Lights

up

during

playback,

playback

pause,

recording

pause

and

recording.

Flashes

during

music

search.

PP:

Lights

up

when

fast

forwarding

the

tape.

i:

Lights

up

in

the

pause

mode.

©

MUTE

Flashes

and

lights

during

recording

mute

operation.

©

REC

Lights

up

during

recording.

©

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

©

Level

[

|:

Left

channel

|

R_|:

Right

channel

The

[{)

marks

indicate

the

reference

level

for

the

Dolby

NR

Systems.

@

REMAIN

Lights

‘up

when

the

remaining

time

counter

mode

is

selected,

@

LARGE

HUB

Lights

up

when

the

TAPE

CAPACITY

selector

is

pressed

in

the

remaining

time

counter

mode,

and

the

Large

Hub

mode

is

set.

®

TIME

COUNTER

Lights

up

in

the

time

counter

mode.

®

DOLBY

8-type

NR/C-type

NR

Indicates

the

selected

Dolby

NR

Systems,

B-type

or

C-type.

®

0B

position

for

expanded

range

®

MPX

FILTER

Lights

up

when

the

MPX

FILTER

switch

is

pressed

while

the

Dolby

NR

Systems

are

ON.

®

0

dB

position

for

wide

range

©

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

dispiayed.

®

Scale

for

expanded

range

e

CONNECTIONS

Connection

of

input

and

output

cords

«

The

cords

to

be

used

have

white

and

red

plugs.

«

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.

Left

channet

OW

Red

piug

White

plug

Connection

to

an

audio

timer

For

details

on

the

connection

to

an

audio

timer,

refer

to

the

instruction

manual

of

the

audio

timer.

SG

8&8

Playback

connection

Recording

connection

|

Supplied

cords

CT-91a

T-91a

3.

EXPLODED

VIEWS

AND

PARTS

LIST

NOTES

:

the

mark)

using

a

supplied

mini-plug

cord,

and

you

will

be

able

to

operate

the

PAUSE

function

of

this

component

using

the

system

remote

control.

CONTROL

OUT

jack

Intermediary

output

of

remote

contro!

signals

from

the

above

input

jack.

Connect

it

to

the

CONTROL

IN

jack

of

another

component

compatible

with

the

Pioneer

System

Remote

Control.

3.1

EXTERIOR

Parts

List

of

Exterior

Mark

No.

Part_No.

CM—22B

ADG1036

REK-—102

REK-100

P

PB

BBP

RTT1061

SLF-401C

DBK-

106

PNB1109

RBF1019

RBH1150

RBL-059

RBM-014

REB—223

REB1038

15

REB1057

16

REC1008

17

RNH-184

18

AAM1001

19

ABA1023

20

AMR1159

Soore

ao

bf

WN=

aoa

hWN-

21

RAC1337

When

performing

unattended

recording

or

wake-up

playback

22

RAC-668

RAC1203

24

RAC1204

25

RAC1205

26

RAC1206

eoewoneons’

'

27

RAC1262

{

28

RAH1184

\itustration

not

applicable

i

29

RAP1003

to

the

UK.

model.

”

;

30

RMS1007

RMS1008

32

RNK1284

33

RNK1285

34

RNK1411

35

RNK1412

rr

Household

AC

outlet

f

36

RXA1158

37

RXA1160

38

RAH1197

39

RAH1198

40

RAH1368

CONTROL

IN

jack

*

Parts

without

part

number

cannot

be

supplied,

Connect

this

jack

to

the

CONTROL

OUT

jack

of

a

component

equi

with

the

Pioneer

System

Remote

Control

(bearing

replacing,

be

sure

to

use

parts

of

identical

designation.

Description

Strain

relief

AC

power

cord

Fuse

(FU103

1.6A//250V)

Fuse

(FU101,

FU102

1A/250V)

Power

transformer

(T1)

Diode

(D11)

Mounting

plate

Absorber

plate

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,

REC

CALIBRATION)

Knob

A

(TIMER)

Button

(POWER)

Button

(DOLBY,

MPX)

Button

(COUNTER)

Button

(«,

>,

>>,

@,

HO)

VR

knob

B(REC

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

lens

FL

panel

Side

panel

Mark

105

106

107

108

109

110

4

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

*

The

A

mark

found

on

some

component

parts

indicates

the

impotance

of

the

safety

factor

of

the

part.

Therefore,

when

*

Parts

marked

by

“©”

are

not

always

kept

in

stock,

Their

delivery

time

may

be

longer

than

usual

or

they

may

be

unavailable.

Part

No.

Description

RAH1405

Door

panel

RXX1064

Cassette

plate

assembly

RXX1128

Bonnet

RXX1159

Door

assembly

RXX1204

Front

panel

assembly

BBZ40PO80FCC

Screw

BBZ30PO60FCC

Screw

IBZ30PO80FCC

Screw

BBT3OPO80FZK

Screw

BBZ40P180FCC

Screw

PYC30P100FMC

Screw

BBZ26PO80FZK

Screw

PMA30PO60FCU

Screw

REE1010

Motor

label

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

Main

Chassis

P.C.B

holder

Shield

plate

VR

rod

guide

Joint

P.C.B

stud

Cassette

plate

Front

panel

Rear

panel

Exterior

3.2

Parts

Mark

10

No.

OoO-~

IMD

abhWN—

10

List

of

Mechanism

Unit

—Part

No.

RSF-031

RSX-059

RXM1016

RXM1018

RBA-064

RBL-044

REB-408

RBL-

028

RBL~030

RBL-098

REB1073

REB1074

RNL~016

RXA1235

RXA1236

RXA1238

RXA1240

RXB-362

RXB~466

RBL-031

RBL-032

RBL—033

RNK-815

RXB~-751

RXB-874

RXB~-875

RBL~037

RBL-038

REB-502

REB-S14

RNL-723

RNL-729

RXB-884

RBH1136

RBH1137

RBH1138

RBH1142

RBL-027

RBL-039

RBL~040

RBL-041

RBL-042

RBL-043

REB-447

RNH—-

184

RNK1297

RNL-733

RNL-734

RNL-735

RNL~

739

RNL-740

RNL~741

RNL~742

RNL-849

RNL-

850

Description

Mark

No

Part

No.

Description

Micro

switch

56

BBZ26PO80FZK

Screw

Rotary

encoder

57

BBZ30PO80FZK

Screw

Capstan

motor

assembly

58

BCZ30PO60FMC

Screw

Reel

motor

assembly

59

BMZ23P100FZK

Screw

Step

screw

60

BM2Z26PO030FZK

Screw

Thrust

spring

61

RBF-065

Washer

Rubber

cushion

62

BMZ30PO80FZK

Screw

Pinch

spring

63

JGZ20PO25FMC

Screw

Pinch

thrust

spring

64

PMA26POS5OFZK

Screw

Pinch

spring

(SUB)

65

PMA26PO60FZK

Screw

Capstan

belt

66

PMZ20PO80FZK

Screw

Capstan

belt

(A)

67

RBF-030

Oil

stopper

Tape

guide

68

RBF-069

Thrust

washer

(A)

Flywheel

assembly

69

RBF-070

Thrust

washer

(8)

Flywheel

assembly

(SUB)

70

RBF-O76

Slider

washer

Pinch

roller

(A)

assembly

71

RBF-O77

Oil

stopper

Pinch

roller

(R)

assembly

72

REC~371

Binder

Metal

holder

assembly

(A)

73

REF-022

Steel

ball

(¢

3)

Meta!

holder

assembly

(B)

74

REF-023

Stee!

ball

(>

4)

BT

spring

(A)

75

VCT30PO60FZK

Screw

BT

spring

(B)

76

VCZ26PO80FMC

Screw

Idler

pressure

spring

77

WA21D040D013

Washer

Reel

shaft

cap

(B)

78

WA26NO070W040

Washer

BT

disc

assembly

79

WA32D080D050

Washer

Reel

base

assembly

80

YE2OFUC

E

ring

Take—up

idler

assembly

81

YE25FUC

E

ring

Head

base

spring

82

YE30FUC

E

ring

Brake

spring

83

YS24FBT

Retaining

ring

Drive

belt

84

RXX1055

Power

motor

assembly

Brake

shoe

85

RXX1212

Head

base

assembly

Brake

101

Earth

lead

wire

assembly

Cam

gear

102

R/P

head

Side

cam

gear

assembly

103

Erase

head

assembly

Arm

shock--absord

spring

104

Connector

unit

Plate

(A)

return

spring

105

Power

motor

Plate

(B)

return

spring

106

Ree!

motor

mounting

plate

Frame

return

spring

107

Flywheel

holder

Pocket

spring

(A)

108

Thrust

holder

Eject

spring

109

Mechanism

chassis

Half

pressure

spring

assembly

110

Pressure

arm

(R)

Rec

arm

spring

Detect

arm

spring

111

Pressure

arm

(L)

Lock

lever

spring

112

Adjustment

nut

0

ting

113

Head

base

pressure

spring

Cord

clamper

114

Head

adjust spring

(C)

4115

Hight

spring

Arm

Rec

detect

arm

116

Head

base

CrO,

detect

arm

W17

Sub

head

base

Metal

detect

arm

118

Brake

lever

Piston

119

First

puliey

120

Gear

chassis

assembly

Cylinder

Lock

fever

124

Pinch

base

assembly

Collar

122

Pinch

lever

assembly

Pocket

(L)

123

Gear

base

assembly

Pocket

(R)

424

Second

pulley

assembly

125

Absorber

Mark

No.

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

Part_No.

Description

Cassette

clamp

shaft

Pocket

frame

Plate

(A)

Plate

(B)

Frame

Door

arm

Cassette

clamper

(L)

Cassette

clamper

(R)

Side

plate

Eject

lever

Top

frame

assembly

Shift

shaft

assembly

Door

frame

(R)

assembly

Door

frame

(L)

assembly

Rec

switch

unit

Tape

selector

unit

Sensor

unit

(A)

Sensor

unit

(B)

a4

J

1

Mechanism

Unit

l,

PACKING

‘arts

List

Mark

No.

1

2

3

4

5

6

7

Part_No.

RHA1029

RHA1030

RHG1124

RHX—034

RDE1013

RRD1062

RRE1026

Description

Pad

(F)

Pad

(R)

Packing

case

Sheet

Connection

cord

assembly

Operating

instructions

(French/Italian/Dutch/

Swedish/Spanish/

Portuguese)

Operating

instructions

(English

/German)

14

T91a

: 3

4

5

:

5.

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DIAGRAM

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UNIT

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PB

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2

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226

1C101

g

1.

RESISTORS

POWER

SUPPLY

UNIT

MECHA

UNIT

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2.

1/4W,

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CAPACITORS

702

2SA1283

Q706,

Q707,

Q713.

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in

capacity

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{V)

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except

electrolytic

capacitor.

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RCX

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UNIT(A)

UNIT

erm

eren

!

CONTROL

only

|

get

|

AMP

UNIT

MECHANISM

UNIT

(2/3)

i

JA301

—

het

>

Ty

ad

Q301

BOB

Oaa

WOOO

Q302

IC105

IC106

rAIVRIO6:

R105

1C107

OSC.

HX

UNIT

Q601

Q603

Q602

Q607

Q643

Q611

Q610

Ic601

Q606

a

ee

Gus.

Q604

Q605

Q609

Q604

|

1

Ql29

Qi

VR605

VR6O2

VR6O1

|

ies

VR604

VR6O3

—

1C304

—_

'

Q128

Q127

ene

ICS

PELOLI

EPMA:

Ar

See

I

RTT

REP

AY

POET

OUNESECLPESESIRATELAT!

up

BAD

ee

=

‘

i

26

;

F}

aa

ih

bene

:

ie

-

2

ig

SOUS

IOS)

(Aiea

Q107 O103

a108

104

Qin

Qn2

Ic18

10117

iti

oe

09

a

LEVEL

Qt

eno

1C101

Ic102

13

.-

ons

O16

-ESAIVRIO1

Alyaiog|

a5

arta

J

Qu7

Qs

REC

BALANCE

BIAS

VR

UNIT

—REC

CALIBRATION—

P.C.B.

pattern

diagram|

Corresponding

part

ee

be

dae

Transistor

Tact

switch

Inductor

je

P|

tater

=—=_[L~_|

|

se

|

Ceramic

capacitor

<7

>

o—{

+-—«

a

Electrolytic

capacitor

(Non

poiarized)

el

capacitor

el

en

el

capacitor

en

el

Electrolytic

capacitor

(Polarized)

Cees

Power

capacitor

©

2)

=)

|

teeserarer

|

=

a

aa

oe

cs

This

P.C.B.

connection

diagram

is

viewed

from

the

parts

mounted

side.

;

The

parts

which

have

been

mounted

on

the

board

can

be

replaced

with

those

shown

with

the

corresponding

wiring

symbols

listed

in

the

above

Table.

aw

The

capacitor

terminal

marked

with

—)

shows

negative

terminal.

The

diode

marked

with

O

shows

cathode

side.

5

The

transistor

terminal

marked

with

CD

shows

emitter.

|

12

22

23

st

tt

|

or

|

e

|

8

|

N

|

sqyt

de

yino

—

(ENS)

TINY

M2iWAHOSM

IH

3A

3ean3a

an

QA3H

toeo

0rd!

Sordi

SOEO

:

30raAv

yoro

corn

TIAU

XH

.920

$080

E080

10380

oreo

taO

Ered

YO30

BOZO

030

20380

030

ero

@StO

O80

OStO

esio

asto

eordl

r0E9I

TstoO

ssto

oro

Stroy

E0ro

=

Yvoro

zoig

“7018

8080

OBO

sro

thro

Oo

E089!

M21MVAHO3M

iat.

B3i

se

=

o3A

(ENE)

TINU

a

000

;

J3Vv3

a

Nz:

eoro

rordi

Oto

sorol

Erol

GA3H

89

_

Jj

arro

=

EttO

aro

=

etto

o3A

a

:

=

BONAIJAS

toro

|

eornvel

na

ei

SOro

|

orrn

102

|:

TIMU

AV

eCAIS

—UOITAREIJAD

I3SA—

5

:

me

|

Fa)

|

a

|

IN

|

&

|

S

|

r

ae

MAADAIC

WUOITOISAMWNOD

edHAOd

0.9

8

e@

View

from

soldering

side

eqyt

de

TIMU

YIIWe

AIWOF

yino

Wes

i

aaa

|

A

|

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NUL)

a

aS

EEE

Oe

I

Bee

Eo

dB

3

/

ER

ae

OR

ees

CE

—“i—SC

anoo

AaWwo9

OA

‘

VOPS\OSS2A}

sHOd\02,

segneueste

gbgoosseeceees:

©

|

iil

ATE

|

::

(ie

.

i

'

voas|

=

g

7

res

OTD

EOTO

Sor

9,

pote

boro

089

ENO

SOTO

2tto

eqvt

de

104

or

stvo

ary

x

Timu

JoaTuoo

=|

9

BOvO

|

0

TIMU

AOTOSUNOD

2080

E0821

a

9

3080

Soe:!

a

ABWOF

IT

ey

=m

(E\NTINU

M2IVAHD3SM

Sere

ene

Bizs\

errr

roco

--—

Der

yina

oe

ee

I

q

|

;

TIMU

ASMIT

!

=

wd0088

!

1

He

Baa

l

ge

meee

QUI

AJA

-

I

a

A

ed

I

|

1

|

Q

I

L

a

AOTIAIFZe

SGAT

AoenNse

We

935A

TIMU

(A)TINU

TIMWU

23N0H9

AoenNze

(a)

TINU

CT-91la

7,

ELECTRICAL

PARTS

LIST

NOTES:

¢

Parts

without

part

number

cannot

be

supplied.

¢

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

impotance

of

the

safety

factor

of

the

part,

Therefore,

when

replacing,

be

sure

to

use

parts

of

identical

designation.

*

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%).

5602

56x10!

561

+

--RD1/4PS

BIJ

47%kQ

47x10

=

473

-

RD1/4PS

[4][7)[3]J

0.52

ORS

RN2H

(O}RI[S)K

1Q

010

+++

+-RSIP

[O)[1][O)K

Ex,2

When

there

are

3

effective

digits

(such

as

in

high

precision

metal

film

resistors).

562k

QQ

SEZX1O!

HOD]

evveeersevsvccnscersecnseececereeeeensersersecserassesasersescsereeses

RN1/4SR

BeAHr

Miscellaneous

Parts

P.

C.

BOARD

ASSEMBLY

OTHER

28

Mark

Symbol

_&

Description

Part_No.

Mark

Symbo!_&

Description

Part_No.

Fluorescent

tube

RAW1018

FL

unit

Switch

Unit

Switch

unit

OSC.HX

unit

SWITCHES

Timer

unit

Control

unit

Mark

Symbol!

_&

Description

Part

No.

Power

supply

unit

$1001-—1014

Tact

switch

RSG-

155

BIAS

VR

unit

(Hl.

«,

@.

&,

>,

BN,

TAPE

Headphone

unit

RETURN,

>»,

COUNTER

RESET,

INPUT

VR

unit

COUNTER

MODE,

TAPE

CAPACITY,

Amp

unit

METER

RANGE,

MONITOR,

0)

REC

switch

unit

RESISTORS

TAPE

SELECTOR

unit

CONNECTOR

unit

Mark

Symbol

_&

Description

Part_No.

SENSOR

unit

(A)

Seago

eu

eae

SENSOR

unit

(B)

All

resistors

RO¥XPMOOID

OTHERS

OSC.HX

Unit

Mark

Symbol

_&

Description

Part_No.

SEMICONDUCTORS

A

Strain

relief

CM—22B

Mark

Symbol

_&

Description

Part

No.

4

AC

power

cord

ADG1036

A

FU103

Fuse

(1.6A/250V)

REK-

102

C601

u

PC1297CA

A

FU101,

FU102

Fuse

(1A/250V)

REK-100

Q601

-Q603

~

DTC114ES

a

Power

transformer

RTT1061

Q605,

Q606

2SA1309A

2

Q608-0610

2803243

Diode

SLF-401C

Q604,

Q607,

0613

2SC3311A

Micro

switch

RSF-031

Rotary

encorder

RSX-059

Q611

2801276

Capstan

motor

assembly

RXM1016

0601

-

D603

MTZ118

Rell

motor

assembly

RXM1018

0611

RD2.7EB-F

0608

RD3.0FB1

Power

motor

assembly

RXX1055

D604

-

D607,

D609,

D610

188254

Head

base

assembly

RXX1212

s

FL

Unit

on

SEMICONDUCTORS

Mark

Symbol

_&

Description

Part_No.

L603.

L604

Step—up

coil

TI

Mark

Symbol

_&

Description

Part

No.

L605

Osc

col

arpa

L606,

L607

Line

coil

RTF1053

C901

—1C903

LC7570

L601,

L602

Trap

coil

RTF1076

0901

188254

.

=

27

CT-91a

CAPACITORS

Mark

Symbol_&

Description

Part_No.

Mark

Symbol

_&

Description

Part_No.

C618

CCCCH120J50

C808

CEASR47M50

C609,

C610

CCCSL470K500

C806,

C807

CGCYX104K25

C622

CEAS100M50

C805

CGCYX473K25

C620,

C621

CEAS221M16

C803, C804,

C809,

C810

CKCYF103Z50

C601,

C602,

C619,

C623-C625

CEAS330M35

c801

CKCYF473Z50

C617

CEAS4R7M50

RESISTORS

C607,

C608,

C626

CFTXA223J50

C627,

C628

CFTXA332J50

Mark

Symbol

_&

Description

Part

No.

C629

CFTXA682J50

C605,

C606

CGCYX103K25

R826

Resistor

array

(10kx8)

DCN1009

R844,

R847

RCX1008

C615,

C616

CGCYX473K25

Resistor

array

(10kx

4)

C613,

C614

CKCYB391J500

R833

Resistor

array

(22kx4)

RCX1009

C611,

C612

CKCYF473250

R827

Resistor

array

(10kx7)

RCX1010

C603,

C604

CKPUYB821K50

R836,

R837.

R846

ROYPMOOOJ

C630

CQPA822J100

R806

-

R820

RNYPOQODOLF

Other

resistors

RDYPMOOOY

RESISTORS

OTHERS

Mark

Symbol_&

Description

Part_No.

Mark

Symbol

_&

Description

Part_No.

VR601,

VR602,

VR604,

VR605

VRTG6HS103

Semi—fixed

resistor

(10k)

CN21

Connector

socket

Ww-02510

VR603

VRTG6HS222

X801

Ceramic

resonator

VSS1014

Semi-fixed

resistor

(2.2k)

F

R627

RS1LMFO10J

Power

Supply

Unit

R619

RDY%PMFERBJ

R603,

R620

RO“PMOOOJ

SEMICONDUCTORS

Other

resistors

RDYPMOOOS

Mark

___Symbo!l_&

Description

__Part_No.

_

OTHER

1C701,

IC702

BA6109

aA

a702

2SA1283

Mark

Symbol_&

Description

Part_No.

Q706,

0707,

A713,

Q715

2SA1309A

Q708

2SA936

CN23

Connector

W-D2509

Q705, 0709, Q711, A712,

Q714

2SC3311A

Timer

Unit

nN

0701,

0703,

0704,

0710

28D1276

A

D723

MTZ10C

SWITCH

4

D717

|

MT212B

4

0716

MTZ13B

Mark

Symbol_&

Description

Part_No.

aA

D718,

0719

MTZ6.2B

$1101

Slide

switch

RSH1001

a

D724

MTZ6.8C

(TIMER

REC-OFF-PLAY)

a

0713

RO2.7EB1

a

aA

D709

1B2C1—-LC2

Control

Unit

4B

D711

1B2Z21-LC2

a&

0714,

D715,

0720,

0721

1SR35-100A

SEMICONDUCTORS

D705, D706,

0722

188254

Mark

Symbol_&

Description

Part_No.

a

D701-D704

10DF2FAQ

1C804

BA335

SWITCH

IC802

M5233L.

1¢801

PD4148B

_Mark_

___Symbol_&

Description

_

__Part

No.

_

C803

TC4050BP

Q807

DTC143ES

aA

$701

Power

switch

RSA-063

Q803-0806

2SA1309A

COIL

Q801,

A802

2SC3311A

Q808

28D1302

Mark

Symbol

_&

Description

Part

No.

D801

-

D805

1$S254

L701

Line

coil

RTF1075

CAPACITORS

Mark

Symbol_&

Description

C724

C722

e717,

C719

C714-C716

c710

C709

C711,

C712,

C721,

C731

c713

C730

C723,

C728

C703-C708,

C729,

C732,

C734

C720

(6800

»

F/25V)

C701,

C702

(2200

u

F/50V)

A

C733

(0.01

u

F/250V)

RESISTORS

Mark

Symbol_&

Description

R708

R702,

R703,

R717,

R729

R701,

R709,

R712—-R714,

R732-—R736

Other

resistor

OTHER

Mark

Symbol_&

Description

CN21

Connector

BIAS

VR

Unit

RESISTORS

Mark

Symbo!l_&

Description

VR1201

Variable

resistor

(Sk-B)

(BIAS)

VR1202

(5kBx2)

(LEVEL)

R1201,

R1202

Headphone

Unit

SEMICONDUCTOR

Mark

Symbol_&

Description

1c401

CAPACITORS

Mark

Symbol_&

Description

C401,

C402

C403,

C404

c405

RESISTORS

Mark

Symbol_&

Description

Part

No.

CEANP4R7MS50

CEASR22M50

CEAS101M10

CEAS101M25

CEAS102M25

CEAS222M25

CEAS330M35,

CEAS332M25

CEAS4R7MSO

CKCYF103Z50

CKCYF473250

RCH1010

RCH1021

VCG-044

__Part

No.

RSTLMFO10J

ROYPMALIOLY

RDYPMOOO

RO%PMOOO

Part

No.

W-P9810

Part

No.

RCV1007

RCV1036

RDY%PMS62J

Part_No.

M5218L

Part_No.

CEYANPO10M50

CEZA101M16

CGCYX473K25

Part

No.

VR401

Variable

resistor

(10k—B)

RCV1009

(PHONES

LEVEL)

Other

resistors

RDY%PMOOOJ

OTHER

Mark

JA401

(PHONES)

INPUT

VR

Unit

RESISTORS

Mark

Symbol_&

Description

VR501

Variable

resistor

(20k-B)

(REC

LEVEL)

VR502

Variable

resistor

(100k—MN)

(REC

BALANCE)

OTHER

Mark;

Symbol_&

Description

.

CN25

Connector

socket

Amp

Unit

SEMICONDUCTORS

Mark

Symbol_&

Description

(C302

1C103,

1C111

IC105,

1106

1C107,

1C109,

10113,

1115,

(C116,

IC301

IC101,

IC102

C117

(C118

Q302

Q127

a

Q130

Be

Q128

Q103-Q106,

Q109-Q118.

301

A

a129

Q107,

0108,

119,

120

Q125,

0126

Q101,

Q102

Symbol_&

Description

A

D103,

D104

A

D101,

D102

D305

0301-0304

SWITCHES

Mark

Symbol_&

Description

§301-—$303

Push

switch

(MPX

FILTER,

DOLBY

B/C,

DOLBY

ON-OFF)

RY301

Relay

CT-91a

Part

No.

RKN1002

Part

No.

RCV1005

RCV1008

Part_No.

w-02508

Part

No.

BA6138

CX20188

M5201L

M5218P

M5220L

NJM78MO9FA

NJM7SMO9FA

2SA1309A

2SA970

2SB950

28C2240

2SC3311A

2801276

2SD1302

2SK246

2SK389

HZ2CLL

HZSCLL

MTZ7.5B

1$S254

Part_No.

RSG1017

RSR-039

29

CAPACITORS

Mark

Symbol

_&

Description

Part

No.

C133,

C134,

C139,

C140,

C178,

C185,

C186,

C317

C177,

CEANPO1OMSO

RESISTORS

Mark

Symbol

&

Description

VR105—VR108

COILS

-

Mark

30

C155,

C156

C311,

C312

C305,

C310

C235,

C236,

C307

C309

C315,

C316

C149,

C150,

C231,

C232

C225,

C226

C105,

C106,

C117-C120,

C147,

C148,

C161—-C164,

C191,

C192,

C223,

C224,

C227,

C228

C151-C154,

C215—C218,

C301,

C303

C209,

C210

C145,

C146,

C189,

C190,

C195,

C196,

C201,

C202

C107,

C108,

C207,

C208

C131,

C132,

C175,

C176

C129,

C130,

C173,

C174

Cit,

C112

C121—-C124,

Ci65—C168,

C239,

C240

C135,

C136,

C179,

C180

C233,

C234

C221,

C222

C125,

C126,

C159, C160,

C169,

C170,

C193,

C194

C113,

C114

C127,

C128,

C171,

C172

C143,

C144,

C187,

C188, C199,

C200,

C205,

C206

C103,

C104,

C141,

C142, C183,

C184

C137,

C138,

C181,

C182

C203,

C204

C219,

C220, C229,

C230,

C237,

C238,

C313,

C314

C211,

C212

C157,

C158

C115,

C116

C241,

C242

C101,

C102

C109,

C110

FILTERS

Symbol_&

Description

L101-L106

Coil

(S.6mH)

F101,

F102

MPX

filter

CEAS2R2MS0

CEAS221M25

CEAS330M35

CEAS4R7M50

CEAS470M25

CEAS471M16

CEYANPO10M50

CEYANP100M25

CEYANP4R7M50

CEZA101M16

CEZA221M25

CFTXA103J50

CFTXA152J50

CFTXA153JN50

CFTXA154J50

CFTXA182J550

CFTXA222J50

CFTXA224J50

CFTXA274J50

CFTXA332J50

CFTXA392J50

CFTXA473J50

CFTXA474J50

CFTXA562J50

CFTXAS63J50

CFTXA683J50

CFTXA822J50

CGCYX473K25

CKCYF103Z50

CKPUYB121K50

CKPUYB151K50

CKPUYB821KS0

CQSF151J50

CQSF30150

Part_No.

RTF1022

RTF1066

Semi—fixed

resistor

(22k)

VR103,

VR104

Semi-fixed

resistor

(33k)

VR101,

VR102

Semi—fixed

resistor

(2.2k)

VR109,

VR110

Semi-—fixed

resistor

(4.7k)

R115-R120

R103,

R104,

R107—R112,

R273,

R274,

R279,

R280,

R283,

R284

R133-~R138,

R157,

R158,

R163—R166,

R171,

R172,

R193,

R217,

R218,

R235—R238,

R265-—R272,

R275-R278,

R310,

R315-R317

Other

resistors

OTHERS

Mark

Symbol

_&

Description

JA101,

JA103

1P

jack

(W)

(Loh,

LINE

IN/OUT)

JA102,

JA104

1P

jack

(L)

(Reh,

LINE

IN/OUT)

CN25

Connector

CN23

Cennector

REC

Switch

Unit

SWITCH

Mark

Symbol

_&

Description

$1

Tact

switch

TAPE

SELECTOR

Unit

SWITCH

Mark

Symbo!_&

Description

$2,

$3

Slide

switch

CONNECTOR

Unit

CAPACITORS

Mark

Symbol_&

Description

C1

RESISTORS

Mark

Symbol

&

Description

RI

SENSOR

Unit

(A)

SEMIGONDUGTORS

Mark

_

Symbol

&

Description

D1

Part

No.

VRTBEVS223

VRTBE6VS333

VRTS6VS222

VRTS6VS472

RDF%PUDDLU

RDR%PMIDCY

RDY“PMOODS

RD%PMOOO

Part_No.

RKB1010

RKB1011

W-P9808

W-

P9809

Part

No.

RSG-

143

Part

No.

RSH-070

Part

No.

CKCYF473Z250

Part

No.

RD%PM681J

Part

No.

GP1AS1HR

CAPACITORS

Mark

Symbo!

&

Description

c2

RESISTORS

Mark

Symbot

&

Description

R2

SENSOR

Unit

(B)

SEMICONDUCTORS

Mark

Symbo!_&

Description

b2

CAPACITORS

Mark

Symbol

_&

Description

c3

RESISTORS

Mark

Symbo!

&

Description

R3

Part

No.

CKPUYY103N16

Part

No,

RD

%

PM271J

Part

No.

GP1A51HR

Part_No.

CKPUYY103N16

Part

No.

RD

%PM2710

CT-91la

CT-91a

8.

ADJUSTMENTS

8.2

ELECTRICAL

ADJUSTMENTS

Adjustment

Conditions

List

of

Adjustments

8.1.

MECHANISM

1,

The

mechanical

adjustments

must

be

completed

first.

:

2.

The

head

must

be

cleaned

and

demagnetized.

Playback

sections

1.

Tape

running

and

azimuth

adjustment

2.

Tape

Speed

Adjustment

3.

Turn

power

on

allow

the

deck

to

warm

up

for

at

least

1,

Head

azimuth

adjustment.

Adjustment

Aujustavent

a

few

minutes

before

commencing

any

electricat

2.

Playback

equalizer

adjustment.

Mode!

"s

ccation

Specifications

Mode)

“|

ccation

Specifications

adjustments.

3.

Playback

level

adjustment.

Gapstan

motor

4.

The

reference

signal

is

OdBv=1Vrms.

R

di

FP

Ss

Nin

is

;

Adjust

so

that

the

playback

frequency

is

5.

Connect

a

50

kilo-ohm

(or

between

47

to

52

kilo-ohm)

ecording

sections

Insert

half

mirror

in

side

A

(set

screws

at

adjustment

patie

4

2

i

7

-

front).

PLAY

|

hole

(Refer

to

pices

poles

Pied

beginning

of

winding

load

resistance

to

the

OUTPUT

terminals.

x

-

oscillator

adjustment.

Fig.

3.)

pe

Sate

6.

Unless

otherwise

specified,

the

switches

listed

below

are

5.

ite

ial

ad

justment.

i

just.

left

in

the

positions

indicated.

:

cording

bias

adjustment,

hed

vat

just

Playback

the

above

tape

and

adjust

to

Playback

test

tape

STD-301

again

and

DOLBY

cag

:

OFF

4.

Recording

level

adjustment.

2

|

PLAY

(Reter

to

that

there

is

no

curling

of

the

tape

in

the

|

PLAY

confirm

that

the

above

specifications

are

:

Fig.

1.)

guide

section

of

the

head.

(Refer

to

Fig.

2.)

satisfied.

TAPE

SELECTOR

:

NORM

Azimuth

Playback

test

tape

STD-331B

and

adjust

Test

Ta

bes:

adjustment

so

that

the

10

kHz

output

level

is

P

-

3

|

PLAY)

a

cew

(Refer

|

maximum

and

also

so

that

there

is

no

STD-331B

:

Playback

adjustments

to

Fig.

1.)

phase

difference

between

L-ch

and

R-ch.

(See

Fig.

8-1)

Check

Item

2

above

again

and

adjust

again

if

it

does

not

satisfy

the

palaspost

;

pi

peienoran

tape

specifications.

(Be

sure

to

adjust

Item

3

when

Item

2

is

adjusted.)

idee

‘

2

blank

tape

STD-610

:

METAL

blank

tape

Slotted

screwdriver

oa

30S

:

O

dB:

315

Hz

160

nwb/m

Azimuth

adjustment

screw

315

Hz

10|

8

|6.3)

4

|

2

|

1

|s00/250

ie

|

He

|

eta

|

| |

ea

|e

|

kHz

|

He

Height

adjustment

nut

3.

Adjustment

of

Door

Damper

ae

Make

sure

that

the

door

opens

smoothly,

there

is

no

two-stage

motion,

and

that

there

is

no

bounding

when

it

opens

completely.

(Perform

with

no

cassette

half

inserted.}

Fig.

8-1.

Constants

of

the

test

tape

STD-331B

Fig.

1.

Curling

PLAY

BACK

Cylinder

adjustment

screw

(Refer

to

Fig,

4.)

250

10k

3dB 4dB

Opening

becomes

slower

Opening

becomes

faster

{when

bounding)

(when

two-stage

motion)

Adjustment

screw

RECORDING

Azimuth

adjustment

screw

Reference

vaiue

A=5+1mm

Fig.

8-2.

Head

azimuth

adjustment

Fig.

8-3.

Allowable

playback

frequency

response

zone

32

- =

33

PLAYBACK

SECTION

1.

Head

Azimuth

Adjustment

*

Turn

VR103,

VR104

to

mechanical

center

positions.

input

signal

&

test

tape

Adjustment

ocation

Measuring

location

Adjustment

value

section

of

STD-331B

test

|

screw.

Tape.

Lock

the

screw

with

screw

2.

Playback

Equalizer

Adjustment

No.

Mode

Input

signal

&

test

tape

PLAY

Play

the

315

Hz

and

6.3

kHz/—

20

dB

portion

of

the

STO-331B

test

tape.

3.

Playback

level

Adjustment

VR604 VR60S

TP11

p

V

R601

R62?

&

VR602

605

OSC.HX

UNIT

34a

(See

Fig.

8-2)

lock

after

completing

adjustme

Adjustment

location

VR101

(Leh)

VR102

{Rech}

|

PLAY

Piay

the

10

kHz/—20

dB

Head

azimuth

adjustment

LINE

OUT

LINE

OUT

¢

This

adjustment

determines

the

DOLBY

NR

level,

and

must

be

performed

with

great

care.

Measuring

location

Maximum

playback

signa!

level.

Adjustment

value

Adjust

the

10

kHz

level

10

0.5

dB

+0.5

dB

in

fespect

to

the

315

Hz

playback

level.

Measuring

location

Adjustment

value

Remarks

Mode

Input

signal

&

test

tape

Adjustment

location

Soar

PoE

URIAE

EIESTEEP

OP

ETEPTESPERREE

Erereer

PLAY

Piay

the

315

Hz/O

dB

VR103

{Leh}

TP.

3

(Lch}

section

of

the

STD-331B

VR104

(Rech)

TP.

4

{Rch)

lest

tape.

Fig.

8-4

Adjustment

location

~-

15.2

dBv

a137[]

(Jere

7

TP2.

TPT

f

N

:

\d

TP3

TP4

REC.DOL.L

~~

—~

REC.DOL.R

VR103

VR104

vrios

=f)

vaio

=

&}

TPB

N

R103

Ka

vR102}

ED

vRi01

vrio@)

Rios

fy

VR1IIC

AMP

UNIT

RECORDING

SECTION

1.

Bias

Oscillator

Adjustment

Input

signal

&

test

tape

Adjustment

location

Measuring

location

Adjustment

value

Remarks

Load

the

STD-610

test

tape

with

no

input

signal.

Input

signal

&

test

tape

Adjustment

location

TP.

W

Load

the

STD-610

test

tape

with

no

input

signal.

3.

Recording

Bias

Adjustment

3-1.

Overbias

Adjustment

VR605

|

106kHz

+

300Hz

Measuring

location

Adjustment

value

130

mv

AC

No.

Mode

Input

signal

&

test

tape

_|

Adjustment

location

Measuring

location

Adjustment

vaive

Remarks

1.

|

REC/

Apply

a

6.3

kHz/—

10dBv

-

LINE

OUT

L,

R

-

PAUSE

(—

10VU

meter

reading)

terminals

signal

to

the

Line

input

2

terminals

and

insert

STD-630.

2.

|

REC

Record

and

play

back

the

|

NOR

VARGEOI

(Leh)

3.0

dB

Turn

control

‘

PLAY

6.3

kHz

signal

at

overbias

clockwise

past

the

=

10

dBv

input

level.

VR602

(Reh)

peak

to

assure

proper

overbias

Record

the

6.3

kH2/

CrO2z

VR603

CrOz

2.5

dB

value.

=

10

dBv

signal

on

{L/Rch)

overbias

STD-620

and

play

back.

4.

Record

the

6.3kHz/

METAL

|

VR604

METAL

|

1.0

d8

~

10

dBv

signal

on

(L/Reh)

overbias

|B

[Tom

conval

lockwiae

past

te

peak

0

aanure

prove

owas

waive

‘Turn

control

clockwise

past

the

peak

to

STD-610

and

play

back.

assure

proper

overbias

value.

3-2.

Frequency

Response

Adjustment

['No.

|

Mode

_|

Input

signal

&

test

tape

1

REC/

PAUSE

REC

PLAY

Apply

a

10kH2/315

Hz/

—

20

dBv

signa!

to

the

Line

input

terminais

and

insert

STO-630.

Record

and

play

back

the

315

Hz

signal

and

a

10

kHz

signal

et

—

20

dBv

input

level.

Record

the

10

kHz/

315

Hz,

-

20

dBv

signal

on

STD-620

and

play

back.

Record

the

10

kHz/

315

Hz,

—

20

dBv

signal

on

STD-610

and

play

METAL

back.

Adjustment

location

VREO1

(Leh)

VR6O2

{Rch)

VR6O3

(L/Ach}

VR6O4

{L/Rch)

Check

distortion

value

after

adjustment

is

completed

and

confirm

that

there

is

no

underbias.

Measuring

location

LINE

OUT

L,

R

terminals

Adjustment

value

Remarks

Record

and

play

back

repeatedly,

comparing

the

315

Hz

and

10

kHz

playback

levels,

and

adjust

to

+

1.50.5

dB.

40.52

1.0

dB

——

anaes

|

+0.5+1.0

dB

35

4.

Recording

Level

Adjustment

PAUSE

STOP

REC/

PLAY

Input

signal

&

test

tape

Apply

a

315

Hz/0

dBv

signal

to

the

line

Input

terminals,

load

the

STD-630

test

tape.

Adjustment

location

Set

the

TAPE

SELECTOR

switch

to

the

NORM

position.

Set

the

DOLBY

NR

switch

to

the

ON

position.

(DOLBY

8)

Rec

Level

contro!

volume

Measuring

location

TP.

1

(lch)

TP.

2

(Reh)

Adjustment

value

~

15.2

dBv

Record

the

above

signal

onto

the

STD-630

test

tape,

and

playback.

Record

the

above

signal

onto

the

STD-620

test

35

STOP

REC/

PLAY

Record

the

above

signal

onto

the

STD-610

test

tape,

and

playback.

VR107

(ich)

VR108

(Reh)

Set

the

TAPE

SELECTOR

switch

to

the

CrOz

position.

tape,

and

playback.

Set

the

TAPE

SELECTOR

switch

to

the

METAL

position.

Check

—T

TP.

3

(Lch}

TP.

4

(Ach)

Repeatedly

record,

playback

and

adjust

so

that

the

playback

signal

level

becomes

~

14.6

dB.

TP.

3

tLch)

-

14.6

dBv

+

0-998

TP.

4

(Ach)

24

TP,

3

{Lch)

14.6

dBv

+

9-948

TP,

4

(Rch)

24

8.

REGLAGES

8.1.

REGLAGES

RELATIFS

AU

MECANISME

|

1.

Défilement

de

bande

et

réglage

azimutal

2.

Réglage

de

vitesse

de

bande

Point

de

Point

de

Be

as

n-|

Mode

réglage

Caractéristiques

Mode

réglage

Caractéristiques

Orifice

de

réglage

du

Régler

afin

que

ta

fréquence

de

lecture

insérer

le

demi-miroir

dans

la

face

A

(les

|

LEC-

|

moteur

de

soit

de

3015

+

SHz

au

début

de

vis

a

l’avant).

TURE

|

cabestan

Yenroulement

de

ja

bande

d’essai

(Se

reporter

&

|

STD-301.

la

Fig.

3).

Ecrou

de

Reproduire

la

bande

ci-dessus

et

ajuster

réglage

de

Reproduire

&

nouveau

la

bande

d’essai

LEC-

hauled

afin

que

la

bande

soit

pas

enroulée

dans

|

LEC-

STD-301

et

confirmer

que

les

TURE

(Se

repo

ter

A

la

section

de

guide

de

téte.

(Se

reporter

|

TURE

caractéristiques

ci-dessus

sont

a

la

Fig.

2).

satisfaisantes,

la

Fig.

1)

Reproduire

la

bande

d'essai

STD-331B

et

régler

afin

que

le

niveau

de

sortie

de

10

kHz

soit

maximum

et

qu'il

n'y

ait

pas

de

différence

de

phase

entre

le

canal

qauche

et

le

canal

droit.

Vis

de

réglage

LEC-

|

azimutal.

TURE}

(Se

reporter

A

la

Fig.

1).

Vérifier

&

nouveau

{élément

2

ci-dessus

et

régier

le

gain

s'il

ne

satisfait

pas

aux

spécifications.

(Lorsque

le

réglage

de

l'élément

2

est

effectué,

procéder

a

celui

de

i'élément

3.)

Toumevis

a

lame

plate

Vis

de

réglage

azimutal

Ecrou

de

réglage

de

hauteur

3.

Régtage

du

mécanisme

de

porte

Vérifier

que

la

porte

s’ouvre

doucement,

que

le

mouvement

n'est

pas

en

deux

phases

et

qu'elle

s'ouvre

complétement

sans

a-coups.

(Exécuter

sans

cassette

a

moitié

insérée).

Vis

de

réglage

du

cylindre

(Se

reporter

a

ta

Fig.

4)

Défilement

en

mode

lecture

de

la

bande

L'ouverture

devient

plus

lente

L'ouverture

devient

plus

rapide

(quand

il

y

a

des

a-coups)

(quand

il

y

a

un

mouvement

en

deux

phases)

Ecrou

de

réglage

Vis

de

réglage

de

hauteur

Valeur

de

référence:

A=5

+

1mm

37

8.2

REGLAGES

ELECTRIQUES

Conditions

de

réglage

1,

Les

réglages

mécaniques

doivent

tout

d’abord

étre

terminés.

2.

Les

tétes

doivent

étre

nettoyées

et

démagnétisées.

3.

Mettre

la

platine

sous

tension

et

la

laisser

chauffer

pendant

au

moins

quelques

minutes

avant

de

commencer

les

réglages

électriques.

4.

Le

signal

de

référence

est

de

dBv=!

Vrms.

5.

Connecter

une

résistance

de

charge

de

50

kohms

{tolérance

47

4

52

kohms)

aux

bornes

de

sortie

(OUTPUT).

6.

Sauf

indication

contraire,

les

commutateurs

ci-dessous

doivent

étre

laissés

sur

les

positions

indiquées.

DOLBY

NR

:

OFF

Sélecteur

de

bande

:

NORM

(TAPE

SELECTOR)

Bandes

d’essai

STD-331B

:

Réglages

de

Ja

lecture

(Voir

fig.

8-1)

STD-630

:

Bande

vierge

de

type

normal

STD-620

:

Bande

vierge

de

type

chrome

STD-610

:

Bande

vierge

de

type

métal

305

OB

Liste

des

réglages

Sections

de

fecture

1.

Réglage

de

l’azimut

de

la

téte.

2.

Réglage

de

Pégaliseur

de

lecture.

3.

Réglage

du

niveau

de

lecture.

Sections

d’enregistrement

1.

Réglage

de

loscillateur

de

polarisation.

2.

Réglage

du

courant

d’effacement.

3.

Réglage

de

la

polarisation

d’enregistrement.

4.

Réglage

du

niveau

d’enregistrement.

0

6B:

315

Hz

160

nwb/m

Fig.

8-1

Constantes

de

la

bande

d’essai

STD-331B

Vis

de

réglage

azimutal

Fig.

8-2

Régiage

de

l’azimut

de

ia

téte

38

LECTURE

Fig.

8-3

Tolérance

de

la

zone

de

réponse

en

fréquence

de

iecture

SECTION

DE

LECTURE

1.

Réglage

de

l’azimut

de

la

téte

*

Tourner

VR

103,

VR

104

sur

leur

position

centrale

mécanique.

Signal

d’entrée

et

bande

d’essai

Points

de

régiage

Reproduire

la

section

Vis

de

régiage

de

l'azimut

10

kH2z/—

20

dB

de

la

de

ia

téte.

|

bande

d’essai

STD-3318

(Voir

fig.

8-2)

Signal

d’entrée

et

bande

d’essai

Points

de

régiage

Reproduire

la

partie

315

Hz

et

6,3

kH2/

—20

dB

de

la

bande

d’essai

STD-331B.

VR101{can.

G)

VR102ican.

D}

3.

Réglage

du

niveau

de

fecture

*

Ce

réglage

détermine

le

niveau

DOLBY

NR

et

il

doit

étre

effectué

trés

soi

Signal

d’entrée

et

bande

d'essai

Points

de

régiage

Verrouiller

la

vis

avec

le

varrouiliage

de

vis

aprés

avoir

terminé

te

régiage.

Points

de

mesure

Sortie

de

ligne

(LINE

OUT)

Points

de

mesure

Sortie

de

ligne

(LINE

OUT}

gneusement.

Points

de

mesure

Valeur

de

réglage

Remarques.

Niveau

du

signal

de

reproduction

maximum.

i

Valeur

de

réglage

|

Remarques

Régier

le

niveau

10

kHz

sur

0.5

dB

+

0.5

dB

par

rapport

au

niveau

de

reproduction

315

Hz.

Remarques

Valeur

de

réglage

Reproduire

la

section

VR103{can.

G}

315

Hz/0

dB

de

la

bande

VR104(can.

D)

d’essai

STD-331B.

VR604

VR60S

\

TPH

V

R601

>)

(hn

P

R627

Q

VR603

VR602

L605

OSC.HX

UNIT

Fig.

8—4

Points

TP.

3

(can.

G}

TP.

4

(can.

D)

—

15.2

dBv

ar37/)

[jprse

TP2

TP4

4

tpa

REC.DOL.L

a

&

REC.DOL.R

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Pioneer CT-91a User manual

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