Nakamichi Cossette Deck- 2 Service Manual

Service Manual

Nakamichi

Cossette

Deel< 2

CONTENTS

1. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

2.

Removal Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.

1.

Top

Cover Ass'y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2. 2.

2. 3. Mechanism Ass'y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.

2. 5. Main

2. 6.

2.

3.

Test

4. Mechanical

4.

4.

4.

4. 4.

4. 5. Tape Travelling

4. 6.

4. 7. Reel

4. 8.

4.

5.

Parts

6. Electrical

7. Mechanism

7. 1. Synthesis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7. 2.

7. 3.

7. 4. Chassis Ass'y

7. 5. Mechanism Ass'y

8.

Mounting

8. 1. Main P.C.B. Ass'y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8. 2.

8. 3.

8. 4.

8. 5. Pin

8.

8.

9.

Schematic

9. 1.

9.

10. Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

11.

Block Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

11. 1. Amplifier

11. 2. Mechanism

12.

Timing Charts

12. 1. Timing

12. 2. Eq. Amp.

13.

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Cassette Case Cover Ass'y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

4.

Front

Panel Ass'y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

P.C.B. Ass'y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Power

7.

Tapes

1.

2. Head Base

3.

9.

Location

Adjustments

Diagrams

6.

7.

Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.

Supply

Control

and

Gauges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Adjustments
Tape Guide Height

Record/Playback

Pressure

Eject

Damper

Motor

Tape

Speed

Lubrication

for

Electrical

Ass

'y

and

Front

Panel Ass'y

Front

Chassis Ass'y

Power

Supply

Timer

Switch P.C.B. Ass'y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Headphone

Jack
Shut-off
Control

IC

Block Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Schematic Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

and

Eq. Amp.

Charts

& Logic P.C.B. Ass'y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Switch & Display P.C.B. Ass'y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Check

for

Record/Playback

Stroke

Check

Head

Adjustment

Check

Adjustment

Speed

Adjustment

Adjustment

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Adjustment

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(AOl)

(A03)

(A04)

and

Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

& Logic P .C.B. Ass'y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

P.C.B.

Ass'y.

P.C.B. Ass'y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

P.C.B. Ass'y

Switch

& Display P.C.B. Ass'y

Section

Frequency

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

Control

Frequency

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

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Azimuth

of

Pressure Roller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

(A02)

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

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

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

Section

Response

Alignment

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

in

Play

Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

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

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

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

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

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

........

Head

and

Erase

Head

. . . . . . . . . . . . . . . . . . . . . 5

and

Height

Check

, . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

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

...

. . . . . . . 5

11
11
12
12
13
14
15
15
17
18
18
19
19
19
20
20

26
26

28
28

30

r'

\

'

i

I

i

I

1.

GENERAL

1.1.

Production

Production

1.2.

Destinations

USA, CAN, EP, UK, AUS, SAU,

Abbreviation

USA - U.S.A.
CAN - Canada
EP
UK

No.

No.:

Europe
United

A327

Kingdom

OTR,

JPN

AUS - Australia
SAU ­OTR -Other
JPN -Japan

Saudi

Arabia

1.3.

Parts

(1)

(2)

1

Supply

Unstocked

Parts'

marked
stocked.
receive

Unsupplied

Parts
list)

your

without

are

not

So,

Parts

with

it

takes

order.

Parts

part

supplied.

"*"at

the

to

head

supply

time

Nos. (indicated

of

part

the

as"-"

No. are

parts

in

after

the

not

we

parts

1.4.

CAUTIONS/WARNINGS

(1)

Product

Parts

marked

Safety

with

Notice
the

symbol

ill

diagram have critical characteristics.
Use

ONLY

replacement

parts

manufacturer.

It

is

recommended

suitable

DC

supply

that

or

batteries

the

unit

procedures.

(2)

Leakage
Before
make
chassis resistance check.

1,6.

Package

returning

either

Ass'y

Current

the

(1)

a leakage

and

Check/Resistance

unit

to

the

customer,

current

If

the

leakage

Accessory

Assty

/,\

in

the

recommended

be

operated

during

initial

Check

make

check

or

current

schematic

by

from

check-out

sure

(2)

a line

exceeds

the

you

to

0.5

milliamp,
the

power

or

if

cord

the

resistance

is

less

from

than

240 k ohms,

chassis

to

either

the

side

unit

of

is
defective.
WARNING ­until

the

a

1.5.

Voltage
Voltage
Nakamichi Cassette
voltage
240

V

at

DO

problem

NOT

is

located

Selector

selector

is

installed
Deck 2 (Other & Saudi

selector

can

select

customer's disposal.

return

and

either

the

corrected.

on

the

110

unit

to

the

Rear

Panel

Arabia). The

V/127 V or

customer

of

the

220

V/

Schematic

Ref.

No.

01
02

Part

No,

OF04434A
OF04456A

Description

Packaa;e Ass•y
Packing

Carton

Box

Q•y

2
1

Fig. 1

2

Schematic

Ref.

No.

Part

No.

DA04397A
DA04399A
DA04406A
DA04398A
DA04396A

OD06116A

OD06115A
DA04388A

Accessory
Accessory
Accessory
Accessory

Accessory
Owner's

Germany)
Owner's
Pin-Pin

Cord

Description

Ass'Y
Ass'Y
Ass'Y
Ass'Y

Ass'Y
Manual
Manual

Ass'y

(USA,

CAN)
(EP)
(UK)
(AUS,

SAU,
(JPN)

(English/French/
(Japanese)

OTR)

Q•Y

1
1
1
1
1

1
1

2

2. REMOVAL PROCEDURES

2.1.

Top

Cover

Refer

(1)

2.2.
Refer
(1)

(2)

to

Loosen

F03

Cassette

to

Press
Ass'y).

Pull

Fig.

F02

Fig,

F01

(Top

the

2.2.

Ass'Y

2.1.

screws

Cover

Case

Cover

Eject

Knob

(Cassette

FOl

Ass'y),

Case

(2

Ass'y

Ass'y

pcs.)

Fig.

Cover

2.1

to

and

open

Ass'y)

F02

F01

upward.

(4

pcs.),

(Cassette

and

Case

remove

Cover

2.4.

Front
Refer
(1)
(2)

(3)
(4)

Panel

to

Figs,
Remove
Loosen
See

Press
Disconnect a connector
Ass'y),

2.4.1

the

screws

Fig.

2.4.1.

claws A (3

See

Ass'y

Top

Fig,

and

Cover

F03

pcs.)

2.4.2.

Fig.

2.4.2.
Ass'y

(2

pcs,),

downward

2.3

(CN-9)

referring

F02

(1

to

unhook

and

to

pee.)

remove

item

and

2.1.

them.
F04

F03

(Front

(2

pcs.).

Panel

2.3.
Refer
(1)
(2)

(3)
(4)

(5)

Mechansim

to

Fig.

2.3.
Remove
Remove

Loosen
Dissconnect

CN-15).
Remove

the

the

screws

F03

arrow.

Eject

Ass'y

Top

Cover

Cassette

FOl

connectors

(Mechanism

Knob

Case

(3

FOi

Cassette

Case

Cover

Fig,

Ass'y

Cover

pcs,)

Ass'y

2.2

referring

and

(CN-4,

Ass'Y)

to

AsSy

referring

F02

(1

pee.).

CN-5, CN-6,

in

the

item

direction

2.1.

to

item

CN-14

of

2.2.

and

the

FOi

~F02

Fig,

~A

~

""--..~~..._..

F03

2.4.1

A

Panel

F04

Ass'y

Fig.

2.4.2

Front

3

2.5.
Refer
(1)
(2)

(3)
(4)
(5)

Main

P.C.B.

to

Figs,
Remove
Loosen
See

Fig,

Slide

out

forward.
Loosen

F07

(Shield
Loosen
Ass'y),

Ass'Y

2.5.1

the

Front

screws

2.5.1.
F04

screws

Plate),

screws

and

FOl

(Front
F05
FOB

2.5.2.

Panel

(4

(2

See

(2

Ass'y

pcs.).

Chassis
pcs.)

Fig,

2.5.2.

pcs.)

F03

Fig,

2.5.1

referring

F02

(1

pee.)

Ass'y & Main

and

FOG

(2

and

remove

to

item

pcs,),

2.4.

and

F03

P.C.B.

and

F09

(Main P.C.B.

(2

pcs.).

Ass'y)

remove

2.6.

Power

Refer

to

Caution:

(1)

Remove

(2)

Push

<Al

(3)

Plili

@ )

Switch

(4)

Remove

(5)

Loosen
and

Supply & Logic

Fig.

2.6.

Unplug

the

Top

FOl

(~ower

).

F01

(Power

and

lift

it

Joint)

from

F01

(Power

screws

remove

F05

the

Cover

Switch

Switch

in

the
the

F02

(Power

P.C.B.

power

cord

Ass'y

referring

Joint)

Joint)
direction
Power

Switch

Joint).

(1

pee,),

Supply & Logic

Ass'y

from

the

to

rearward

~ntward

(.£)to

(3

disengage

pcs.)

P.C.B.

Switch.
F03

item

and

AC

(in
(in

outlet.

2.1.
the

the

FOl

F04

Ass'y),

direction
direction

(Power

(1

pee.),

F07

FO

Fig,

2.5.2

F09

Main

P.C.B.

Ass'y

2.7.
Refer
(1)
(2)

(3)

Control

to

Fig. 2.
Remove
Loosen
F03

(Shield
Loosen
remove

Switch & Display

7,

the

Front

F01

Plate),

F04

(Control

Panel

(2

(2

Switch & Display

screws
screws

F06

Fig,

Ass'y

pcs.)

pcs.),

Fig,

2.6

P.C.B.

and

2.7

Ass'y

referring

F02

unhook

to

item

(2

pcs.),

claws

P.C.B.

2.4.
and

(6

pcs.),

Ass'y).

remove

and

4

3.

TEST

TAPES AND GAUGES

(1)

400

Hz

Level

Tape
(2) 1 kHz
(3)

10

(4)

15

(5)

20

(6)

15
(7) 3 kHz
(8)

Tape
(9)

Reference

(10)

Reference

(11)

Reference

(12)

Head

(13)

Torque

Track

kHz

PB

kHz

PB

kHz

PB

kHz

Azimuth

Speed

Travelling

Alignment

Gauge

EXII

SX

ZX

(DA09005B)

Alignment
Frequency
Frequency
Frequency

Tape

and

Wow/Flutter

Cassette

Tape

Tape

Tape

Gauge

FWD

Tape

(DA09007B)
ReSPonse
Response
Response

(DA09004B)

(DA09071A)

(DA09111A)

(DA09110A)

(DA09109A)

(DA09092B)

(DA09082A)

Tape
Tape
Tape

Tape

4. MECHANICAL ADJUSTMENTS

4.1.

Tape

Guide

Height

Check

for

Erase

With

use

height

check

made,

wherein a small

base

while

Refer

to

Fig.

(1)

Record/Playback

(a)

Load

carefully

(b)

Place
9092B)

(c)

Slide
Playback
accepted

(d)

If

not,
(OC80048A),
to

raise
quantity

(2)

Erase

(a)

Load
carefully

(b)

Place
(DA09092B)

(c)

Slide
Head,
guide.

4.2.

Head

Refer

to

(1)

(2)
(3)

(4)

4.3.
Refer

(1)

(2)
(3)

(4)

(6)

(6)

Fig.
Load
carefully,
Head
and

the

Set

the

Place
9092B)
Contact
surface
end

of

ance

as

Record/Playback
Check

to

Fig,

Contact
Load a 16
cassette
Tum
channels
Load
the

cassette
Check
voltmeter
If

not,
required.
Apply a quantity
ment

Head

of

a

Head

for

in

use

4.1.

the

base

and

the

small

on

the

the

small

Head,

by

loosen
the

of

lock

Head

Tape

the

base

and

the

the

small

and

check

Base

Stroke

4.2.

the

base

then

to

eliminate

base.

cassette

the

small

on

the

the

and

the

small

shown

4.1.

an

AC

deck

the

Azimuth

become

a 1

kHz

deck

to

insure

are

replacement

Screw.

Alignment

the

Record/Playback

block

of

the

Head

Ali.gnmeht

Head

Tape

of

the

the

cassette

block

base.

block

and

tape

guide.

the

screw

µm

tight

Guide

of

the

the

cassette

block

the

base,

block

whether

Check

of

the

push

the

deck

in

block

block

Erase

block

Fig,

4.2.

Head

Azimuth

Play

mode.

Alignment

maximum.

Track

in

Play

that

the

-26
of

of

lock

Head

of

against

check

(0C80038A),

paint

Height

Head

against

Head

the

clearance

Play

of

Head

is

Alignment

mode,

readings
dB.
the

set

the

60

Record/Playback

set

small

on

base.

small

the

in

voltmeter

kHz

in

below

Record/Playback

Gauge

shall

be

pushed

Guide

Aligruneht

deck

in

the

Head
the

tape

to

insure

and

insert a shim

Head,

to

the

screw,

Alignment

deck

in

of

the

the

the

block

Alignment

base

toward

between

mode.

the

Head

with

the

surface,

located

within

Azimuth

to

the

Output

Tape

(DA09004B)

Screw

Tape
of

Record/Playback

tight

paint

and

Gauge

Height

or

Head

tape

until

both

(DA09003B)
(DA09002B)
(DA09001B)

(DA09006C)

(DA09092B).

Erase

Heads

straight

down

(DA09092B),

Gauge
Play
Alignment

guide

100

then

Play

is

accepted

the

Alignment

Record/Playback

and

Alignment

Jacks,

(DA09007B)

to

(DA09092B)

mode.

Gauge

of

the

that

the

(either

µm

(0C80039A))

tighten

Gauge

(DA09092B)

mode.

Alignment

guide

of

Gauge

(DA09092B)

Record/Playback

the

reference

Gauge

check

whether

the

specified

and

and

the

outputs

channels

Head

the

Azimuth

tape

and

by

on

Head

shall

Record/

block

30

apply

Gauge

the

the

(DA0-

Height

set
of

and

the
will

Align-

and

guide

to

the

(DA0-

µm

Erase

tape

pin

Head

the

toler-

the

both

set

AC

be

be

is

a

Fig. 4.1

Fig.

4.2

Azimuth

Alignment

Screw

Gauge

5

4.4.

Pressure

Refer

to

(1)

(2)

4.5,
Load a Tape
deck
(1)

(2)
(3)

Fig, 4.

In

Play
against
range
If

pressure

installation

Tape

Travelling

in

Play
After
ling

on

Tape

is

Tape

waving

Adjustment

3.

mode,

the

capstan

of

360

±40

is

point

Travelling

mode

to

more

than

the

Record/Playback

in

contact

is

small

measure

g,

out

of

of

Check

Cassette

check

2

seconds,

with

of

and

the

on

the

the

the

Pressure

the

the

Pressure

check

range,

Pressure

Fig.

4.3

(DA09071A)

followings:

the

Head

head

heads

Roller

of

whether

fluctuation

sufficiently,

correct

Roller

is

small.

and

the

Spring.

pressure

the

it

and

of

Pressure

pressure

by

changing

set
the

roller,

the
tape

Roller

is

in

the

cassette

travel-

4,

7,

Reel

Motor

Speed

(1)

Load a Torque
deck

in

(2)

a

(3)

4.8.
Refer
(1)
(2)

(3)

Play
After 5 to
Logic

P.C.B.

gauge,

Check

that

Tape

Speed

to

Fig.

4.6.

Connect a frequency

Load

a 3

it

Capstan

CCW:
CW:

kHz

back,

the

Motor
Motor

play
Adjust
the
counter.

Adjustment

Gauge FWD

mode.

10

seconds,

Ass'y

the

back

Adjustment

Speed

Tape

Speed

Motor

drives
drives

to

tension

counter

and

to

slowly,
fast.

in

(DA09082A)

adjust

VR501

obtain

exactly

is

in

to

Wow/Flutter

Adjustment
obtain

Play

a

range

the

3,000

Mode

on

45

of

Output

Tape

Volume

Hz

and

set

the

Power

g-cm

on

1.5

to

Jacks.
(DA09006C)

incorporated

on

the

the

cassette

Supply

the

torque

5 g-cm.

frequency

&

and

in

Decrease~

Increose

Fig,

4.6

Fig,

4.6.

Eject
Refer
Cassette
adjust
Screw.

.n_Oe<:reose

to

Fig.

Case

the

CCW:
CW:

Damper

4.5.

by

SPeed

Damper
Damper

Adjustment

Load a cassette

pressing

of

the

damper
moves

moves

fast.

slowly,

Eject

action

Iocc«>"'

Damper

Adjustment

Screw

Eject

Damper

4.4

tape,

button

by

the

and

and

Damper

with

closing

opening

it

by

hand,

Adjustment

the

4.9,

Lubrication

The

tape
the
(1)

(2)

(3)

(

4)

Note:

transport

following

parts

Molykote @ Grease

Cam

Motor

Thrust

FLOIL
Diamond
Anderol

portion

GB-TS-1

Washer

between

Oil

Reel

Hub

456
Capstan
we

suggest
equivalent
The

company·

(a)

Molykote @ Grease
Dowcoming
ku,

(b)

FLOIL
Kanto
Chiyoda-ku,

(c)

Diamond
Mitsubishi
Tokyo,

(d)

Anderol
Toyo
ku,

is

of a lubrication-free

are

replaced,

Pulley

on

the

Reel

(EP-56)

Shaft

Shaft

that

you

type,

dealing

Tokyo,

Tokyo,

Co.,

Japan

GB-TS-1

Chemicals

Tokyo,

Oil

Oil

Japan

456

Kokusai

Japan

(EP-56)

apply

(X5-6020)

Capstan

Hub

Ass'y

use

the

in

the

Ltd.,

Co.,

Japan

Co

..

Ltd.,

Oil

Co.,

the

Shaft

and

above

above

lubricant

(X5-6020)

1-15-1

Ltd.,

2-7

1-2-4

Toranomon,

Ltd.,

g..3.5

type

mechanism.

specified

Nishishinbashi,

Back

Tension

specified

Kanda

Hatchobori,

lubricant,

lubricant

is

as

Sakuma-cho,

When

Spring

or

follows:

Minato-

Minato-ku,

Chuo-

Fig.

4,5

6

5.

PARTS LOCATION

FOR

ELECTRICAL ADJUSTMENTS

Power Supply a

Logic

P.C.

B.

-------Rec.

Col.

Main

P.C.B.

• •

~~~

Reel

CP!oy)

Motor

YR~!

IQ!

Speed~

VR!06r.rirl

Erase

Current~

VRIO,L VRf04L
VRl05R VRl04R VRl03R

l!I l!I l!I

VR103L

PloybockLevel (20KHz)

VRlllR

~ ~

VRl11L

VRl02L

0

l!I

Ploybock Level

!400Hzl

@'IJ

VLIOOR

MP>

"'"'

~

Fig,

5

7

6.

ELECTRICAL

ADJUSTMENTS

S'Il!P Il:Ell

Preliminary

1

Step

Reel

2

Motor Torque

Speed

Adjustment

(Play)

Tape Speed 3

3

Adjustment

Meter

4

Level

Calibration

SIGRAL

SOURCE

Gauge

FWD

(DA09082A)

kHz

Speed

and \low/

Flutter
Tape

(DA09006C)

400

Hz

to

Input

Jacks

OllTPDT

COllHl!CrIOll

Frequency

Counter

Output

Jacks

AC

Volt-

meter

to
Output
Jacks

Balance

Bias

Tape

MPX

Dolby

Playback

Playback

to

Tape

Record.Pause

MODE

Center

Tune -

Center

-

Type

Filter

-

OFF

NR

- OFF

-

Type

-

IV

IV

AD.JUST-

MEHT

Power

Supply

&

Logic

P.C.B.

VR501

Tape

Speed

Adj.

Volume

(Capstan

Motor)

Main

P.C.B.

VR112L
VR112R

Set

the

Play

1.

VR501

gauge.

2.

Check

value
value.

Adjust

capstan

the

frequency

Feed

1.

Level

dB

on

Adjust

2.
dB

segment

illuminating.

Rl!IWIKS

Cassette

back a Torque

to

that

is

the

motor

in

control
the

VR112L

obtain

the

within

volume

to

counter.

400

Hz

AC

of

Deck 2

deviation

incorporated

obtain 3 kHz

and

to

voltmeter.

(VR112R)
the

Gauge

45

g-cm

±5

g-cm

adjust

obtain

level

as

shown

FWD

on

of

of

500

so

meter

the

the

the

in

±15

the

mV

that

in

and

torque

center

the

Hz

Rec

-0.5
the

starts

MODE.

adjust

torque

on

0

MPX

5

Filter

Adjustment

Record/

6

Playback
Head Tape
Azimuth

19

kHz

:tlOO

to

Input

Jacks

15

kHz

Azimuth

(DA09004B)

Hz

AC

Volt­meter
Output

Jacks

AC

Volt­meter
Output
Jacks

Alignment Tape -

Playback

7

Level Level
Calibration

400

Hz

Tape

(DA09005B)

AC

Volt-

meter

Output
Jacks

to

to

to

Record,Pause

MPX -OFF/ON

Playback
Dolby

NR

-

OFF

MPX -OFF

Type

IV

Same

as

above

Main

P.C.B.

VL!OOL

VLlOOR

Record/
Playback
Head
Azimuth
Align­ment
Screw

Main
P.C,B.

VR102L
VR102R

Adjust

1.

500
Set

2.
adjust
reading
reading

Adjust

the

mV

(O

dB)

the

MPX

VLlOOL

on
will

the

Record/Playback

Alignment Screw

readings

for

both

voltmeter.

Adjust

the

VR102L
voltmeter.

AC

Rec

Level

on

the

Filter

(VLlOOR)

the

AC

be

less

to

obtain

channels

(VR102R)

control

AC

voltmeter.

switch

to

voltmeter

than

Head Azimuth

maximum

on

to

obtain

to

to

ON

obtain

(minimum

-30

dB).

the

500

obtain
and

minimum

AC

mV

on

8

STEP

l'IJ!K

SIGHAL

SOURCE

OUTPUT

COllllJ!CTION

K>DE

ADJUST-

MENT

8

9

Playback
Frequency

Response

Adjustment

Bias

Oscillation

Frequency
and

Erase
Current
Adjustment

400

Level

(DA09005B)

10 kHz

Frequency

Response

Tape

(DA09003B)

15 kHz

Frequency

Response

Tape

(DA09002B)

20 kHz
Frequency

Response

Tape

(DA09001B)

None

[Serial

Hz

Tape

PB

PB

PB

No.

=A32705801)

AC

Volt-

meter

to

Output

Jacks

Frequency
Counter

between

terminals

l

and

2

of

CN15

Main

P.C.B.

and

AC

Volt­meter
across
additional

0.1
resistor

the

ohm

Playback

Dolby

MPX -OFF

Tape

Record,Pause
Tape -

Type I

Dolby

on

MPX -OFF

Serial

[

A32701001-05800

NR

OFF

-

Type

NR

OFF

Nos.:

Main

-

P.C.B.

VRlllL

VRlllR

IV

Main

P.C.B.

VT!OO

-

JS!OO

VR106

J

1.

Load a 400

back.

2.

Load

frequency

them

back

readings

AC

Check

as
for

If
range,
satisfactory
compensates
response

3.

Conduct
Azimuth

1.

Connect
in
connect

2.

Adjust
on

If
106 kHz,
jumper

VTlOO

3.

Adjust

on

4.

After

adjustment,

oscillation

5.

Remove

and

10

back.

head

voltmeter

that

follows

400
10 kHz:
15 kHz:

20 kHz:

the

level

adjust

Alignment".

series

VTIOO

the

frequency

bias

oscillation

wire

again.

VR106

the

AC

completion

the

Hz

level

tape

read

kHz,

response

Adjust

azimuth

for

the

with

Hz

level

-20

-20

-20

the

at

20

the

15

kHz

both
with

playback

respect

tape.

dB

-2

dB

-2

dB

-2

at

20

VRlllL

results.

playback

kHz

.•

playback

and

tapes

the

record/play-

to

obtain

channels
each

tape.

to

+2

to

+3

to

+4

kHz

is

(VRlllR)

VRlllL

as

shown

20

levels

to

l_A=r

IOK

step

6 11Record/Playback

an

additional

to

the

the

AC

to

short-circuit

as

to

voltmeter.

re-check
frequency.

additional

20K

Erase

voltmeter

obtain

counter.

frequency

shown

left

obtain

of

the

the

0.1

0.1
Head and

105

JSlOO

20

erase

bias

play

it

level.

kHz

PB

and

play

maximum

on

the

are

the

level

dB
dB

dB
out

of

to
(VRlllR)

frequency

below:

Approx.

Head

ohm

resistor

across

kHz

±1

is

with

and

re-adjust

mV

(200

current

ohm

resistor.

the

obtain

5d8

it.

kHz

above

a

mA)

10

JS100

Bias

Trap

Adjustment

(Record

Amp.)

~or~

CD®

f

I>

None

(remove
input

signals)

CD®

12

AC
meter
between
pins
1

2 (GND)

3

2 (GND)

of

on

JS100

Volt-

(Leh)

(Reh)

TPIOO

Main

P.C.B.

and

or

and

8JS100

Same
above

as

9

Main

P.C.B.

VL102L
VL102R

Adjust

reading

VL102L

on

the

(VL102R)

AC

voltmeter.

to

obtain

minimum

STEP

11

IlEH

Record
Level
Calibration

and 18 kHz

Recording
Bias
Current
Adjustment

SIGl!IAL

SOUllCl!

400

Hz

(O

dB)

and

(-20

to

Input

Jacks

dB)

OUTPUT

COllHl!CTIOH

AC

Volt-

meter

and

Distortion

Meter

to
Output
Jacks

llODI!

Record and
Playback
Tape -

Type

IV/II/
I

Dolby

NR

OFF/C

MPX -OFF

-

AD.JUST-

MENT

Main

P,C,B,

(Level)
Type

IV

VR105L
VR105R

Type

II
VR104L
VR104R

Type I

VR103L
VR103R

(Bias)

Type

IV
VR109L
VR109R

Type

II
VR108L

VR108R

Type I

VR107L
VR107R

Adjustment

zx.

SX

1.

Set
mode.

2.

Feed
Level
on

the

3.

Load a

SX

tape

4.

Set

5.

Feed

rewind.
Adjust
VR104L

(VR103R)
played

(0

dB)

6.

Set

7.

Feed

rewind,
Adjust
VR108L

(VR107R)
played

(-20

8.

Repeat

times.

9.

Set

10.

Feed

rewind,

insure
distortion

and EXII
If

the
exceeds
VRlllL
Frequency

repeat
results

and
the

in

control

AC

reference

the

in

VR105L

(VR104R)

back
on

the

in

VR109L

(VR108R)

back

dB)

above 4

the

in

that

total
(VRlllR)

above

should
EX

tapes.

cassette
400

Hz

voltmeter.

and

reference
Dolby
400

Hz
and

play

for

EXII

output

the
Dolby
18

kHz

and

play

for

EXII

output

on

the

Dolby
400

Hz

and

play

the

is

tapes

harmonic

the

specified

Response

steps

are

obtained.

be made

and

to

deck

adjust

obtain
ZX

tape.

in

in

EXII

NR

switch

(0

dB)

and

it

back.

(VR105R)

for

SX

tape

for
tape

so

levels

Ac

voltmeter.

NR

switch

(-20

dB)

it

back.

(VR109R)

for

SX

tape

for
tape

so

levels

AC

voltmeter.

to 8 two

NR

switch

(O

dB)

and

it

back.

total

less

harmonic

than

and 1.6%

distortion
value,

in

Step 8 "Playback
Adjustment

till

the

order

Record/Pause

the

Rec

500

mV

(O

reference

tape.

to

OFF.

record,

ZX

tape•

and

VR103L

that

the

are

500

to

c.

and

record,

ZX

tape,

and

VR107L

that

the

are

50

mV

or

three

to

OFF.

record,

Check

to

1.2%

for

SX

ZX

tape.

for

re-adjust

11

, and

satisfactory

of

dB)

mV

10

7. MECHANISM ASS'Y AND PARTS LIST

7.1.

Synthesis

L12

12

06

IA02J

L05

~LOS

-~~5

~,14

~,.

Me¢hOnism

09(A041

A.Sy

uo

L04

02

L04

Fig,

7.1

11

*:

Unstocked

Schematic

Ref.

No.

7

.1.

Synthesis

01
02
03
04
05
06
07
08

09
10

11

12
13
14

L01
L02
L03
L04
L05

L06
L07

LOB
L09

L10
L11
L12

7

.2.

Front

AOl

01
02
03

LOl

7

.3.

Front

A02 -

01

02
03

04

05
06

parts.

Part

OH05710A
HA05935A

*

OH05711A
HA05930A

*

BA07947A

*

BA07960A

*

BA07945A

*

CA09049A

*

OJ06258A
OJ06259A
OB83916A

OH05824A
OE03032A

OE03632A
OE03366A
OE00921A
OE03054A

OE00860A
OE03212A

OE00896A
OE00868A

OE03551A
OE03157A
OE00859A

Panel

HA05930A
OH05714A

OJ06253A
OH05818A
OE00855A

Chassis

OH05723A
OC09392A
HA05929A
OJ06252A
OH05716A
OH05825A

No.

Synthesis
Top

Cover
Cassette
Volwne
Front
Timer

Ass'y

Front
Headphone
Control
P.C.B. Ass'Y
Mechanism
Power
Shield
Mechanism

Slide
BT4x8
(Black
BT3x8
(Black
BT3x8
(Black
BT3x8

(Black
BT3x8
BT3x6
BT2.6x6
Toothed
M3x6
BT3x8
(Black
M3x8
BT3x6
BT2.6x6

Front
Dummy

Push
Push
BT2x6

Front
Power

Power
Eject
Eject
Control
Tact

-

- Chassis

Ass'y

Description

Case

Cover

Knob

Panel

Ass'y

Switch

P.C.B.

Chassis

Ass'y

P.C.B.

Switch & Display

Ass'y

Switch

Joint

Plate

GND

Binding
$Binding
Lock

Washer

EB

Binding

Ass'Y

Spring

Binding

Ass'Y

Button
Spring

Ass'y

A

Wire

Projected

Ass'y

Knob

$Binding

Chromate)

@Binding

Chromate)

@Binding

Chromate)

$Binding

Chromate)

$Countersunk
EB

$Binding

$Binding

Chromate)

$Binding

$Binding

Panel

Cap
Knob
Knob

EB

Chassis

Switch

Switch
Knob
Spring

Knob

Knob

Ass'y

Ass'y

Ass'y

Ass'y

Washer
Washer

with

with

Washer

Faced
Faced

Q'y

7,2,

Front

Panel

Ass'Y

(A01)

1
1
3
1
1
1
1
1

1
1
1
2
1
1

Fig.

7,2

7

.3.

Front

Chassis

Ass'y

(A02)

02

01

[r·

Y<

.A

Q

-~

1
1

6
6

~

03

~-

1
1

1
1
1
3
2

Fig.

05

7.3

12

7.4.

Chassis

Ass'y

(A03)

01

LOil.

JL01

.

""

04_....,

0

LOI

02

LOS

~12

*:

Unstacked

Schematic

Ref.

7

.4.

A03

01

01
02

03
04
05

06

07

No.

Chassis

*

*
*

*

parts.

Part

No.

Ass'Y

-

BA07944A

BA07961A

BA07959A

BA07946A
OJ06267A

OB50176A
0B50178A
OB50177A

OB50175A
HA05833A
OB08504A
OB08093U
OB08348A
OB05241A
OB08219B
0B08533A

Chassis

Ass'Y

Power

Supply & Logic

Ass'y

(USA,

SAU,OTR)

Power

Supply & Logic

Ass'y

(JPN)

Main

P.C.B.

Pin

Jack

P.C.B.

Cushion

Power

Transformer

(USA,

CAN)

Power

Transformer

(EP,

UK,

Power

Transformer

Power

Transformer

Leg

Ass'y

Power

Cord

Power

Cord

Power

Cord

Power

Cord

Power

Cord

Power

Cord

Description

CAN,

Ass'y

P.C.B.

Ass'y

AUS)

(USA,
(EP)
(UK)
(AUS)
(JPN)
(SAU,

EP,

120V
230V
(SAU,

100V

CAN)

OTR)

P.C.B.
UK,

P.C.B.

OTR)

(JPN)

AUS,

Fig.

Q'y

1
1

1
1

1

5

1
1
1

1
4
1
1
1
1
1
1

7.4

13

Schematic

Ref.

No.

08

09

10

11

12

LOl

L02

L03
L04
LOS

LOG

Part

No.

OB90280A
OB90283A
OH05830A
OH05847A

OM05611A
OB07092U

0B90019A
OE03157A
OE03366A

OE03592A
OE03012A
OE00860A
OE00985A

Description

Cord

Bushing
AUS)
Cord

Bushing

JPN)

Rear

Panel
AUS,
Rear

Voltage
Voltage

(SAU,

Insu~Lock

BT8x8
BT3x8
(Black
BT4x6
(Black

BT3x12

(Black
BT3x6
(Black

M3x6

(Black

(SAU,

(USA,

JPN)

Panel

(SAU,
Lock
Selector

OTR)

$Binding

G:!Binding

Chromate)

$Binding

Chromate)

EB

Binding

Chromate)

ffi

Binding

Chromate)

E9

Binding

Chrontate)

OTR)

(USA,

(UK,

Plate

Switch

With
Projected

Washer

CAN,

SAU,
CAN,
OTR)

(OTR,

EP,

OTR,

EP,

SAU)

Washer

Faced

UK,

Q'y

1
1
1
1

1
1

2

*:

Unstoeked

Schematic

Ref.

7,5,

Mechanism

A04

01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17

18

19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41

42

43
44
45

46
47
48

49

50
51

52

53
54

55
56
57
58
59
60
61

LOl
L02

L03
L04
LOS
L06

L07
LOS
L09
L10
L11
L12
L13

L14
L15
L16
L17
L18
L19
L20
L21
L22

No.

parts.

Part

CA09049A

*

OC85310A

OC85309A
CA80006A
OC82720A
OC85414A
OC85301A
OC80037A
OC80019B

OC80013A

OC80014A

OC82719A
CA80725A
OC80612A
OC80613A
CA80001A
HA05936A
OG01365A
OC85303A
OC80044A
OC82710A
OC80004A
OC80005A
OG01371A
OC85304A
OC80045A
OC82703A
OC82697A
CA80726A
CA80005A
OC80008A
OC80007A
OC80009A
CA81646A
OC80027A
OC81415A
OC85302A
OC85311A
OC81417A
OC80017B
OC82721A
OC82709A
OC80025A
OC80024A

CA80011B

*

CA80204A

OC80628A
OC80030A

CA81648A

OC80031A
OC80428A

OC80033A
OC80034A
OC80035A
OC80036A
CA80009A
CA81647A
OC80010D
OC80012A
OC85305A
OC85306A

OC83380A
OE00698A
OE03052A
OE03235A
OE00181A
OE03042A
OE03043A
OE03437A
OE03049A
OE03226A
OE03038A

OE03436A
OE03053A
OC80038A

OC80039A
OC80048A
OE03046A

OE03040A
OE00222A
OE03035A
OE03036A
OE03044A
OE00691A
OE03048A
OE03041A

No.

Ass'y

Description

Mechanism
Eject

Eject
Damper
Eject

Eject
Cassette
Insu-Lock
Eject

Lock

Lock

Lock

Take-up
Spring
Reel
Cassette
Cover
Erase

2P

Connector
Erase
Head
Steel
Reinforce

Record/Playback
GP

Connector
Record/Playback
Azimuth
Head
Supply
Pressure
Pressure
Steel
Cassette
Control
Mode
Worm
Control
Motor

Cam

Record
Mechanism
Cassette
Record
Record
Shut-off
Brake
Brake
Reel
Reel
Capstan

Hold

Flywheel
Capstan
Sleeve

Floating
Flywheel
Capstan
Cassette
Eject
SP

Connector

GP

Connector
Idler
E-Ring

CS

Stopper
Damper
E-Ring
FT2,5x5
FT2.5xl0
FT2.5x3.5
Washer
Washer
M2x12
TP2x6
Wire

Shim

Shim
Shim
M2.6x6
FT2.5x3.5
E-Ring
M2x3.2
M2x4
FT2.5x20
M2x3
FT2.6x6
FT2.5x4

Ann

Spring

Arm

Ass'y
Lever
Lever

Case

Spring
Lever
Lever
Lever

Reel

Holder

Hub

Spring

Case

Plate

Head

E2D

Head

Collar

Base

Hold

Ball

3mm

Plate

Adjust

Base B

Reel

Roller
Roller

Ball

2mm

Case

MO"tor

Switch

Thrust

Motor

Thrust

Protector

Chassis B

Holder
Protector
Protector

P.C.B.
Ass'y
Spring

Motor

Holder

Motor

Flange

Spring

Belt

Rubber

Holder

Motor

Case

Sensor

Gear

2.5mm
Washer

3mm

EEi

Pan

ffiPan

ffiPan

1.8x3.2x0.5

2.1x4.5x0.1

$Binding

Holder

0.06T
O.lT

0.03T
@Pan

EEi

2mm

EEi

Truss

EEi

Pan

@Pan

@Pan

$Pan
ffiPan

Ass'y

Spring
A

Holder

Spring
Collar
B

Ass'y

Hub

Spring

Bush

B

B

Ass'y

Holder

Switch

2.4mm

Pan

(2A)

Hub

Ass'y

Ass'y

Ass'y

Plate

Head

Ass'y

Head

Spring

Ass'y
Ass'y
Spring

Ass'y

Holder

Stopper

Lever

Spring

Holder

Switch

Ass'y

Ass'y

Ass'y

Ass'y
Ass'y

(2A)

L

for

for

R

Erase

2G

R/P

Collar

Head

Head

1
1

1
1
1
1
1
4
1
1
1
1
1
2
2
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
3
1
1
3

1

1
1
1
1
1
1
1
1

1
1
1
1
1

1

1

1

1

3

3
1
1
1
1
1
1

1

Schematic

Ref.

No.

L23
L24
L25
L26
L27
L28
L29
L30
L31
L32
L33
L34

7.5.

Mechanism

Part

No.

OE03237A
OE03045A
OC85411A
OC85410A
OE00694A
OE03051A
OE03245A
OE03047A
OE03037A
OE03509A
OE03653A
OE03508A

Nut

Hex.
M2.6x3
Brake
Brake
Nut

Hex,
Washer
Plastic
M2.6x9
M2x5

Washer

Washer
Washer

Ass'y

(A04)

Description

M2.6

EEi

Binding
Washer
Washer

M2

2.5x7x0.8

Washer

@Pan

@Pan

1.3x3.4x0.5

1.6x4x0.25

1.

7x6x0.25

B
A

1.3x3.3x0.3

(2A)

Q~y

uo

L12

Fig,

7.5

L05

~

59

60

~

07

~

14

8.

MOUNTING

Notes:

1.

Mounting
printed

2. Diode is

diagram shows a dip side view

circuit

1S853,

wise specified.

3.

Abbreviation
TR

-Transistor,

ZD -Zener
Capacitance
RK -Carbon
Resistor,

RF

RC -Cement
CE -Electrolytic
Capacitor,
Capacitor,
CSP -

Polystyrene

Capacitor,

•

Semiconductor

Ref.

No.

Location

UlOO C-5

Ul01

U102

U103

Ul04
U105

U106

Q100L

QIOOR

QlOIL

Q101R
Ql02L
Q102R
Q108

Q104

Q105L
Q105R
Q106L
Q106R
Q107L
Q107R
Q108L
Q108R
Q109
QUO
Qlll
Q112
Q113L
Q118R
Q114L
Q114R

1-4
1-4

DIAGRAMS

AND

board.

181555,

for

part

or

name:

18Sl

76 unless

SiD - Silicon Diode,
Diode, Varicap - Variable
Diode

Resistor, RM - Metal

- Fail Safe

Type

Resistor,

Resistor

Capacitor,

CC

- Ceramic

CMM

-Metalized
Capacitor,

CT-Tantalum

Location

Ref.

C-9
F-9
1-9
H-6

F-11
H-11

D-5
D-5
D-6
D-5
F-10

F-8
H-8
G-7

1-7

G-7

1-6

G-6

E-2

F-8

F-8

F-8

E-2

H-4
E-2
F-8
E-4
F-4

Q115L

Q115R
Q116L
Q116R

Q117

Q118L

QllBR

Ql20

Q121L

Q121R
ZDlOO
Z0101
Z0102
Z0103L
Z0103R

Z0104L
Z0104R
0100
0101
0102
0103
0104
0105
0106
0107
0108
0109L
0109R
OllOL
OllOR

0111

CML - Mylar

Capacitor,

Mylar

C - Mica

Capacitor

Location

No.

E-4
F-4
E-6
F-6
E-2
c-11

C-11

1-9

E-6
F-6
C-7
D-7
F-6

H-11
H-11
I-11
I-11
D-5
H-8

1-7

I-7
G-7
F-2
E-7
E-6
D-11
H-11
H-11
I-11

I-11

F-6

PARTS

of

LIST

the

other-

Film

CPP

-PP

Capacitor,

8.1.

A

B

c

D

E

F

G

Main

P.C.B.

Ass'Y

2 3

e[OJ}:£2:~1

CN-10

4 5 6 7 8 9

10

11

H

Fig.

8.1

15

*:

Unstacked

Schematic

Ref.

No.

Main

8.1.

UIOO
UlOl
UI02
UI03
UI04
UI05
U106
QIOOL,R
Q101L,R
Q102L,R

Q103
Q104

Q105L,R
Q106L,R
Q107L,R
QIOSL,R

Q109
QUO
Qlll
Q112
Q113L,R

QII4L,R
QI15L,R
Q1I6L,R
QI17
Q118L,R
QI20
Q121L,R
ZD100,I01

ZDI02
ZD103L,R
ZD104L,R
DlOO,IOI

0102,IOa
D104,I06
DI06,I07
DIOB
DI09L,R
DilOL,R
DllI
VTIOO
VLlOOL,R
VL10IL,R
VL102L,R
LIOOL,R

VR100
VR101
VR102L,R

VR103L,R
VR104L,R
VR105L,R
VR106
VR107L,R
VR108L,R
VR109L,R
VR110
VR111L,R
VR112L,R

RlOOL,R
R101L,R
R102L,R

R103L,R
R104L,R

R105L,R
R106L,R

RI07L,R

RlOSL,R

R109L,R

R110L,R

Rlll,112

RliaL,R

Rll4L,R

RI15L,R

R116L,R

R117L,R

R118L,R

Rll9L,R

R120L,R

R121L,R

R122L,R

R123L,R

parts.

Part

No.

P .C.B. Ass'Y

BA07959A

*

0B60831B
OB06146A
OBI1363A
0B06146A
OBI1027A
0B06387A
OB06370A

OB06124A

OBI0033A
OBI0033A
OBI0033A
0B10029A

OBI0053A
0BI0067A
OB10033A
OB06I42A
OB06I42A

OBI0102A

OBI0033A
0B06069A
OBI0053A
0BI0067A
OB06I42A
0B06142A
OB10033A
OBI005aA

0BI0067A
0BI005aA
OBI0067A
OBI2I68A

OB12168A
0BI2273A
0BI2289A

OB06398A

0B06398A
0B06398A
OB06398A
0B06a98A
OB06398A
OB06398A
OB06a9BB
0B51a60B
OB06690A
0B5Ia6IA
OB06696A
0B039I9C
0B30128A
0B30126A
OBa2192A
OBa2192A
OBa2192A
OBa2193A
0Ba219aA
OB32194A
OB32194A
OBa2194A
0B30127A
OB32191A
OBa2192A
OB09653A
OB09725A
0B25291A
OB25260A
0B252a6A
OB09749A
OB09749A
OB25280A
OB09709A
OB09689A
OB09689A
0B09683A
OB09673A
0B09700A
0B09698A
OB25a24A
OB26244A
OB26251A
OB25171A
OB09749A
OB25287A
0B25196A
OB09681A

Description

Main P.C.B. Ass'Y

Main P.C.B.

NJM4558DD

IC

IC

CX20I88
NJM4558DD

IC

IC

TC9I45P
NJM2043DD

IC
IC

NJM4556D

IC

NJM4558D

TR

2SCI

740S

2SCI

TR
TR
TR

TR

TR

TR
TR
TR

TR

TR
TR
TR
TR
TR
TR
TR
TR
TR
TR

TR

ZD

RDIOJSB2

ZD

RD10JSB2

ZD

RD3.aEB1

ZD

MTZ6.1C
SiD

SiD
SiD
SiD
SiD
SiD

SiD

SiD

BIAS OSC

L-C

Rec.

L-C

Inductor

VR

VR

Semi

Semi
Semi
Semi
Semi
SemiVR
SemiVR
Semi

VR

Semi

Semi

RK

RK

RM

RM

RM

RK

RK

RM
RK
RK
RK
RK
RK
RK
RK
RM

RM

RM

RM

RK
RM

RM
RK

7405

2SCI740S

2SA933S
DTAI44ES
DTCI43TS
2SC17408
2SC2240
2SC2240
2SAI320
2SCI

740S
2SB564
DTAI44ES
DTC143TS
2SC2240
2SC2240
2SCI

740S
DTAI44ES
DTC14aTS
DTA144ES
DTC143TS

lOV
lOV

a.av

5.IV
ISSl

76
1SS176
ISS176
ISSI

76
ISS176
ISSl

76
ISS176
1SSI

76

B0-1

Block

Peaking

Block

a6mH

lOOKMN

100KAx2

VR

SK

VR

SK

VR

5K

VR

!OK

VR

lOK
20K

20K

VR

20K

100KAx2

VR

2K

VR

SK

100

1/6W

lOOK

1/6W

lOK

1/4W F R197

4.

75K

I/4W

2.67K

1/4W

IM

I/6WJ

IM

1/6WJ

7.68K

I/4W

22K

1/6WJ
1/6W J

a.SK

1/6W J

a.aK

1.SK

1/6W J R206L,R
1/GW J

680

9.lK

1/6W

7.6K

1/6W

22.lK

1/4W

3.24K

1/4W F R21I

a.83K

1/4W

l/4W F

662
IM

1/6W J

9.09K

1/4W F R2I6,216

lK

1/4W F

1.5K

I/6W

(BL)
(BL)

(BL)
(BL)

Coil

J
J

F
F

F

J
J
F

F

J

Schematic

Ref.

No.

R124L,R
R125

R126,127

R128
RI29,130
RISI
RI32L,R
RI33L,R
RI34L,R

R135L,R
RI36L,R
RI37L,R

R138L,R

R139L,R

R140L,R
RI41L,R
RI42L,R
RI43L,R
R144L,R
R145
RI46

R147

RI48,I49
RI50
RISI,152
R153
R154L,R
RI55L,R
R166L,R
R157L,R
RI58
RI59
R160L,R
R161L,R
R162L,R
R163L,R
RI64L,R
R165L,R
RI66L,R
RI67L,R
R168L,R
Rl69L,R
R170
RI71
R172
R17aL,R
RI74L,R
R175L,R
Rl76L,R
R177L,R
R178
R179
R180L,R
R18IL,R
R182L,R
R183L,R
R184L,R
R186L,R
R186L,R
R187L,R
R188L,R
R189L,R
R190L,R
R191L,R

R192L,R

R19aL,R
R194L,R
R195L,R
R196

R198L,R
R199L,R

R200L,R
R201L,R

R202L,R
R20a
R204
R206L,R

R207L,R
R208L,R
R209L,R
R210

R2I2L,R
R213L,R
R214

ClOOL,R
ClOlL,R

Part

No.

0B09707A
0B25398A
OB24272A
0B09709A
OB09701A
0B09689A
OB09705A
OB25277A
0B09749A
OB09701A
OB09709A
0B09693A
OB09680A
OB09705A
OB09692A
OB09682A
OB09706A
0B0970IA
OB09684A
OB097I7A
0B09685A
OB09695A
OB09725A
0B09717A
OB09733A
0B09733A
OB097I1A
OB09719A
OB09677A
OB0974IA
0B0970IA
0B09725A
OB097a6A
OB097I9A
OB09689A
0B0969IA
OB09671A
OB09645A
0B09705A
0B09697A
OB09696A
OB09696A
OB09693A
0B09708A
OB0970IA
OB09705A
OB09695A
OB09653A
OB0168aA
OB01888A
OB09684A
0B09710A
OB09629A
0B0974IA
OB09330A
OB09651A
0B093aOA
OB097a1A
OB25287A
OB09711A
OB09686A
OB09655A
0B25301A
OB25293A
0B09749A
OB09'116A RK 43K
OB09716A
OB09709A
OB09726A
0B09677A
OB097I7A
OB09685A
OB097I8A
OB09726A
OB096a7A
OB09677A
OB09726A
OB09677A
OB09749A
OB09677A
0B09741A
0B09696A
OB09701A
0B09725A
OB09682A
OB0965aA
0B2402aA
OB09717A
0B40756A
OB41279A

Description

18K

RK
RM

130K

RF

68

22K

RK
RK lOK

3.3K

RK
RK 16K l/6W J
RM

7.I5K

lM

RK
RK lOK
RK 22K

4.7K

RK
RK

1.3K

RK 16K
RK

4.3K

RK

l.6K

RK 16K

lOK

RK
RK

2K

RK 47K

RK

2.2K

RK

5.6K

RK IOOK

47K

RK
RK

220K
220K

RK
RK 27K

66K

RK
RK

lK

RK

470K

lOK

RK
RK

100K

RK

270K

RK 56K

a.SK

RK

a.9K

RK

RK 560 l/6W J

RK 47 l/6W J

15K

RK

RK

6.8K

RK

5.6K

RK

5.6K

4.7K

RK

20K

RK
RK lOK
RK 15K

5.6K

RK

RK

100
16K

RM

RK lOK

2K

RK

24K

RK

RK 10 l/6W J

470K

RK
RK

lOOK
RK 82
RK

100K

RK

180K

9.09K

RM
RK

27K

2.2K

RK

120

RK

12,7K

RM

RM

10.5K

lM

RK

RK 43K l/6W J

22K

RK
RK

100K

lK

RK

47K

RK
RK

2.2K

RK

51K

RK

lOOK
RK

22 l/6W J

1K

RK
RK

lOOK
RK

lK

lM

RK

lK

RK

470K

RK

6.2K

RK
RK lOK

100K

RK
RK

1.6K

RK

IOO
Fuse

Resistor

RK

47K

1µ

CE

CML

2700P

1/6W

J

1/4W

F

1/4W

J

1/6W

J

I/6W

J

1/6W J CI07L,R

I/4W F CI09L,R

1/6W J CilOL,R

I/6W J ClilL,R
1/6W J CI12L,R
1/6W J CII3L,R
1/6W J CI14L,R
1/6W J CI15L,R

I/6W J C116,I17

l/6W J

I/6W

J
I/SW J CI20L,R
I/SW J C12IL,R
I/SW J C122L,R

1/6W J CI23L,R

I/SW J C124L,R
I/SW J C125L,R

l/6W J

I/6W J CI27

1/6W J CI28,I29
1/6W J C130

l/6W J

1/6W

J

I/6W

J

1/6WJ

I/6W

J
I/6W J CI36L,R
I/6W J Cia7L,R
I/6W J C138L,R

1/6W J C139L,R

I/6W

J

l/6W J

1/6W J C145L,R

I/6W J C146L,R

1/6W J C147L,R

l/6W J

1/6W

J

1/6W

J

l/6W J

I/6W J C152L,R

1/4W F

I/4W

J

I/6W

J

l/6W J

1/GW J

1/4W J

1/6W

J

1/4W

J

1/6W

J

1/4W

F

1/6W

J

l/6W J

1/6W

J

1/4W

F

1/4W

F

1/6W J

1/6WJ
1/6W

J

1/6W

J

1/6W

J

1/6W J
1/6W J

1/6W

J

l/6W J

1/6W

J

l/6W J

I/SW

J

I/6W

J

1/6W

J

1/6W

J
I/GW J

1/6W

J

1/6W

J

l/6W J

I/6WJ

1

l/6W

(LN)

50V

J

J

50V

Schematic

Ref.

No.

C102L,R
C103L,R

C104

C105L,R
CI06L,R

CIOSL,R

Cl

IS

C119

C126L,R

C13IL,R
Cla2L,R
c1aa

C134L,R

C135L,R

C140
C141,142
C14a

C144

CI48L,R
C149L,R
C150L,R
C151L,R

C15aL,R
C154L,R
CI55L,R
Cl66
C157L,R

C158

C159,160

Cl61L,R
C162L,R
C16a
C164L,R
C165
C166
8100
S101
S102

S103
Sl04
S105

JS100

CN3

CNlO

CNll

CNla

CN14
CN15
CNI6

CN17

TPlOO

Part

No.

OB41275A
OB40756A
OB40115A
OB41286A
OB41143A
OB41295A
OB41296A
OB4I302A
OB4I288A
OB4I300A
OB41306A
OB41139A
OB41I33A
OB4II33A
OB40092A
OB40115A
OB40090A
OB41277A
OB41394A
OB41282A
OB40487A
OB4I280A
OB4I276A
OB4I277A
OB41298A
OB41286A
OB41286A
OB4I28IA
OB40I12A
OB40112A
OB40756A
OB4I294A
OB41278A
OB4I28aA
OB40487A
OB41709A
OB4I974A
OB40112A
OB4I4a2A
OB4I4I4A
OB41974A
OB40732A
OB41a94A
OB41289A
OB40723A
OB40114A
OB4I274A
OB41400A
OB4I284A
OB4I402A
OB40758A
OB40078A
OB40114A
OB41420A

OB40078A
OB40758A
OB40758A
OB40114A
OB41a86A
OB41298A
OB40092A
OB70177A
OB70177 A Push
OB70177A
OB70176A
OB70176A
OB70176A
OB84359A

OB84127A

OB84288A
OB8146aA
OB84289A
OB81464A
OB8I46aA
OB81459A
OB8I460A
OB84280A
OB81460A
OE00868A

OJ06255A
OJ06268A

CML

CE
CE

CML O.OIµ
CPP
CML
CML
CML
CML
CML
CML
CPP
CPP
CPP

CE
CE
CE

CML
CPP
CML

CE

CML
CML
CML
CML O.Iµ
CML
CML O.OIµ
CML

CE
CE
CE

CML
CML
CML

CE

cc
cc

CE

CPP
CPP

cc

CE

CPP
CML O.OISµ

CE
CE

CML
CPP
CML
CPP

CE
CE
CE

CPP

Serial

Aa2705801

CE
CE
CE
CE

CPP
CML

CE

Push
Push

Push

Push
Push
Header
Serial
Aa2706801
Header

Serial

Aa2701001 • 06800
6P-T
GP-T
6P·T

7P-T
6P-T

2P-T
aP-T

3P--T

aP·T

BTaxS

Volume

Main

Descdption

1200P

50V

1µ

50V

(LN)

4.7µ

50V

50V

5600P

IOOV G

0.056µ

50V

0.068µ

50V

0.22µ

50V

0.0I5µ

50V

0.15µ

50V

0.47µ

50V

3900P

IOOV G

2200P

100V

2200P

IOOV G

220µ

25V

4.7µ

50V

47µ

25V

1800P

50V

220P

50V

4700P

50V

IOµ

25V

3300P

50V

1500P

50V

1800P

50V

50V

O.OIµ

50V
50V

3900P

50V

1µ

50V

1µ

50V

Iµ

50V

(LN)

0.047µ

50V

2200P

50V

6600P

50V

IOµ

35V

47P

50V

lOOP

60V

1µ

60V

8200P

50V

1500P

50V

IOOP

60V

22µ 26V

220P

50V

50V

47µ

I6V

3.3µ

50V

IOOOP

60V

390P

50V

6800P

50V

470P

50V

22µ

50V

IOOµ

I6V

a.aµ

50V

2700P

50V

No.:

-

100µ

16V

2.2µ

60V

2.2µ

50V

a.3µ

60V

100P

50V

0.1µ

50V

220µ

25V
Switch
Switch
Switch
Switch
Switch
Switch

3P

No.:

-

2P

Nos.~

Post
Post
Post
Post
Post
Post
Post
Post

Post

ID

Binding

Holder

Shield

(1)

J

J

J

J

J

J

J
J

J

J

J

J
J

J

(LN)

J

(LN)

J

J
J

(LN)

J

(LN)
(LN)
J

J

J

(2)

(1)

J

J
J

J

G

J
J
J

J
J

J
J
J

J

J

16

8.2.

Power

Supply & Logic

P.C.B. Ass'Y

2

3

4

5

6

7

8

•

Semiconductor

Ref.

No,

U401
U402
U403
U601

U502
IP461
IP462

Q401

Q402

Q403

Q404
Q406

Q406

Q407

Q501
Q502
Q503
Q504

Location

Location

B-5

B-5

D-5
E-3
B-2
E-7
A-4
C-5
F-6
G-4
G-4
F-4
F-4
E-4
E-4
E-4
F-4
B-3

Ref,

Q505
Q506
Q507

ZD401
ZD402
ZD403
ZD601
ZD602
D401
D402
D403
D404

D406

D406
D407
D408
D409
D410

No.

Location

B-2
B-1
B-1
C-4
C-4
F-5
C-3
B-1
E-6
D-6
E-6
E-6
F-6
E-6
E-6
E-6
D-4

G-4

Ref.

0411

D412
D413
D414
D416
D416
D417

D501
D502
D503
D504
D505
D606
D607
D508
D509

D510

No.

Location

F-4
F-4
G-4
F-4

G-4

F-4

G-4

D-2
D-2
E-4
E-3
F-4
F-4
F-4
F-4
F-1
E-2

Fig.

8.2

17

*:

Unstocked

Schematic

Ref.

Power

8.2.

U501
U502

Q501

Q502
Q503

Q504

Q505
Q506

Q507
Z0501
Z0502
0501,502
0503,504
0505,506
0507,508
0509,510
X501
VR501
R501
R503
R504
R505,506
R507
R508,509
R510
R511,512
R513
R514,515
R51G
R517
R518,519
R520,521
R522,523

R524,525
R526
R527,528
R529
R530
R531,532

R533,534
R535
R536,537
R538
R539
R540,541
R542,543
R544,545
R546,547
R551,552
R553,554
R555
R556

R557

R558
R559
R560
R561

C501

C502

C503

C504,505
C50G,507
C551
C552
C553,554
C555,556

U401
U402
U403

Q401

parts.

No.

Supply & Logic

BA07944A

*

BA07961A

*

-Logic­OB11861A

OB11368A
OB10068A
OB10030A

OB10053A

OB10062A
OB10026A
OB10062A
OB10030A
OB12290A
OB12288A
OBOG398A
OB06398A
OB06398A
OB06398A
OB06398A
OB92033A
OB32192A
OB09701A
OB09701A
OB09G89A
OB09677A
OB09677A
OB09701A
OB09677A
OB09677A
OB09693A
OB09701A
OB09693A
OB09701A
OB09701A
OB09701A
OB09701A
OB09701A
OB09701A
OB09701A
OB09693A
OB09701A
OB09701A
OB09701A
OB09701A
OB09701A
OB09701A
OB09677A
OB09677A

OB09677A

OB09677A
OB09677A
OB09677A
OB09677A
OB24273A
OB09701A
OB09G81A
OB09695A
OB09717A
OB09G77A
OB05575A
OB40078A
OB47117A
OB40023A
OB41553A
OB41944A
OB40078A
OB4128GA
OB41553A
OB41553A

-Heat
OB118G2A

OB11863A

OB11753A

OB06451A
OE007G6A
OJ06256A

Part

No.

P,C.B. Ass'Y

Power
Logic

(USA,

UK,

OTR)

Power
Logic

(JPN)

IC

IC
TR
TR
TR
TR

TR

TR

TR

ZD

ZD

SiO
SiD
SiD
SiO
SiO
Crystal
Semi

RK lOK

RK

RK

RK

RK

RK lOK

RK

RK

RK

RK

RK

RK lOK

RK lOK 1/GW J

RK lOK

RK

RK lOK

RK lOK

RK lOK

RK

RK lOK
RK lOK

RK lOK

RK lOK

RK

RK lOK

RK

RK

RK

RK

RK

RK

RK

RF

RK

RK

RK

RK

RK

RK
CE

cc

CML

cc
cc

CE

CML

cc
cc

Sink-

IC

IC
IC

TR

M3x8 e Binding ( 4)

Heat

Description

Supply

& Q402

P,C,B.

Ass'y

CAN,

EP,

AUS,

SAU,

Supply

&

P .C.B. Ass'Y

µP075106CW

LB1649
OTC114ES
2SC1740S
DTA144ES
DTC144ES

2SA933S

DTC144ES

2SC1740S

5.6V

5.lV
lSSl

76
1SS176
1SS17G
1SS176

lSSl

76

4.0MHz

VR

5K

1/6W J R403

lOK 1/GW J

3.3K

1/6W J R405
1/GW J

lK

1/6W J

lK

1/6W J R408

lK

1/6W J R409

lK

1/GW J

4.7K

1/GW J

lOK 1/GW J

4.7K

1/6W
1/6W

1/6W

lOK

1/6W
1/6W
1/GW J
1/6W

4.7K

1/6W

1/6W J
1/6W J

1/6W
1/6W

lOK 1/GW J

1/6W J

lK

1/GW J

1/6W J

lK
lK

1/6W

lK

1/6W

lK

1/GW J

1/6W J

lK

lK

1/GW J

27

aw

lOK

1/6W

1.5K

1/6W J

5.6K

1/6W J

47K 1/6W J

1/6W J

lK

560

1/4WJ

100µ

lGV

0.1µ

50V

25V

lGV

25V
25V

(1)

50V

50V

50V

Z

Z

Z
Z

0.22µ

0.01µ

lOOOP

100,u

0.01µ

0.01µ

0.01µ

NJM7812FA
NJM7912FA
NJM7805FA

2SB1015

Sink

J
J

J
J
J

J
J

J
J

J
J

J

K

Schematic

Ref.

No.

Q403,404

Q405

Q406
Q407

IP451

IP452

ZD401
Z0402
ZD403
0401,402
0403,404

0405,406
0407,408
0409
0410,411
0412,413
0414,415
0416,417
R401
R402

R404
R406

R407

R410
R451
C401

0402,403
0404,405
C40G,407
C408
C409
0410,411
C412
C413
C414
C415
C416
C417
C418
C419
C420
S401

CNl
CN2
CN3
CN4
CN5
CN6
CN7
CNS
CN9
CNlO

CNll
CN12
CN17

Part

No.

-

Power

Supply

OB06303A
0B10030A
OB10062A
OB10053A
0B10062A
0B11725A

OB11638A

OB12314A
OB12317A
OB12285A
0BOS282A
0B12365A

0B12365A
OB123G5A
OB123G5A
0B06398A
OB06398A
0B06398A
OBOG398A
0B05629A
OB01G81A
0B01706A
OB09709A
0B09703A
0B09733A
OB09725A
OB09717A
OB09733A
0B09701A
OB24023A
0B41825A

OB4182GA cc

OB47117A
0B47117A
0B47117A
OB40097A
0B40096A
0B40084A
0B40085A
OB40082A
0B40121A
OB40104A
0B40497A
0B40758A
OB40754A
OB40753A
0B47117A
0B71012A

-

Miscellaneous
0B60834B
0B81323A

0B81573A
OB8389GA
0B81465A
OB814G3A
OB81459A
0B84302A
0B84296A
OB84281A
0B83900B
OB83901B
0B83902B
OB83915B
OB84275A

OE03355A

TR
TR
TR
TR
TR
IC

ICP-N1Q..T104RC

0.4A

IC

ICP-N20·T104RC

0,8A

ZD

MTZ12B

ZD

MTZ13B

ZD

MTZ4.7A
SiO

OBA10B/OBA10C
SiO
SiD
SiD
SiO
SiD
SiD
SiD
SiO

RK

RK

RK

RK

RK

RK

RK

RK

RK

RK

Fuse

cc

(USA,

UK,

OTR)

(JPN)

cc
cc
cc

CE

CE

CE

CE

CE

CE

CE

CE

CE

CE

CE

cc

Power

Power

Logic

5P-T

6P-T

GP
8P-T

GP-T

2P-T

lOP-T

8P-T

3P-T

GP

GP

4P

3P
Wrapping

2P

Earth

Description

­2SB772

2SC17408
DTC144ES

0TA144ES
OTC144ES

12V

13V

4.7V

1SR35-100A
1SR35-100A
1SR35-100A
1SR35-100A
1SS176

lSSl

76

lSSl

76

lSSl

76

2.7K

1/4WJ

3.3K

1/4W

47

1/4W
1/6W

22K

12K

1/6W

220K

1/GW J

lOOK

1/6W

47K 1/6W J

220K

1/GW J

lOK

1/GW J

Resistor

4700P

400V

CAN,

AUS,

SAU,

4700P

250V

0.1µ

50V

0.1µ

50V

0.1µ

50V

3300µ

25V

2200µ

25V

3300µ

1GV

4700µ

16V

1000µ

16V

220µ

50V

100µ

35V

470µ

25V

2.2µ

50V

0.47µ

50V

0.33µ

50V

0.1µ

50V

Switch

­Supply

P.C.B.

Post

VH

Post

VH

Connector

Post
Post

Post

Post·

Post

Post
Connector
Connector

Connector
Connector

Terminal

(2)

Plate

(1)

1

EP,

Ass'Y

Ass'Y
Ass'Y
Ass'Y
Ass'Y

Z
Z
Z

(LN)

(LN)
(LN)

Z

&

J
J
J
J

J

8.3.

8.4.

Schematic

Ref.

No.

Timer

8.3.

*

S701

CN9

Headphone P .c.B.

8.4.

*

PJlOl
C:N"l6

Timer

Switch

P.C.B.

Ropoot/Tlmor

,,

"<

',

'·

'S70f

:--·r

...

.:....~----·"'71

•1 ....

-o.o:

-~po

;

•""

.

.•.;•

)<.,

<°·-CN·,91

3'rrj"'C;6,1

L.---J

Fig,

..

0

~~:SJ<

\,.''"-

8.3

P.C.B.

<

d~~

1-L.i<(Bl:

'----'

Headphone

:o

..

Fig.

8,4

Part

No.

Switch

P.C.B.

Ass'y

BA07947A

0B60837B
0B70175A
OB83899A

BA079GOA

0B60832B
OB81478A

0B83904A

Timer

Ass'y

Timer

Slide

3P

Ass'y

Headphone P .c.B.
Ass'y

Headphone
Headphone
3P

Ass'y

((-)

- I

Ass'Y

;::,:i.

•I'.

; I

---

DesCl'iption

Switch

Switch

Switch

Connector

Connector

,,

-··

P.C.B.

P.C.B.

2-4

Ass'y

P.C.B.
Jack

Ass'y

18

8.5.

8.6.

Pin

Jack

,,

C701

0::-!K>

Shut-off

P.C.B. Ass'Y

P .C.B. Ass•y

Fig.

Fig.

8.5

8.6

;.·····.r·"'-

.

.;.1--;:r;·"')"

:,

'l

'71

,,,,, ,

__

'o·~·

~--+12V

"""

'"""

t

Lc~lc

PC

8.

7.

Control

Switch & Display

0

P.C.B.

Ass'y

*:

Unstocked

Schematic

Ref.

Pin

8.5.

C701

$702
PJlOO
PJ701
CN12
CN13

Shut-off

8.6.

QOOl
Q002

ROOl
R002
R003

No.

Jack

*

0B60836B
OB41553A
OB70178A
0B84334A
OB84028A
OB81461A
0B83903A
OE03355A

CA80011B

*

OC80047A
0B06388A
OB06389A

OC81330A
OB09841A
OB09840A

parts.

Part

No.

P.C.B,

Ass'y

BA07946A

P.C.B.

Ass'y

Description

Pin

Jack

Pin

Jack

0.01µ

cc

Slide

Switch

Pin

Jack

Stereo

4P-T

Post

7P

Connector

Earth

Plate

Shut-off

Shut-off

TR

2SC2812
Photo
NJL5141

RM

750
RK

15K

RK

680

P .C.B.
P.C.B,

2-2

4P

Mini

(1)

P.C.B.
P.C.B.

Reflector

Assty

AsSy

Assty

Schematic

Ref.

No,

Control

8.7.

U601

Q601,602
Q603,604
Q605,606
Q607,608
Q609,610
Q611
R601
R602
R603,604
R605
R606,607
R608
R609,610
R611,612
R613,614
R616,616
R617
R651
R652
R653
R664
C601
C602

C603
S601,602
S603.604
S605,606

$607,608

CN7

CNS
FL601

Part

No.

Switch & Display

BA07945A

*

OB60835B
OB11860A

OB10030A
OB10030A
OB10030A
OB10030A
0Bl0030A
0Bl0030A
OB09713A
OB09701A
OB09677A
0B09677A
OB09717A
0B09717A
OB09717A
OB09717A
0B09717
OB09717A
0B09629A
0B09701A
0B09693A
OB09705A
OB09701A
OB41974A
OB40158A
OB40173A
0B70161A
OB70161A
OB70161A
OB70161A
0B83897A
OB83898A
OB90461A
OJ06219C
OJ06238A

A

Description

P.C.B. Ass•y

Control

Switch

Display

P.C.B. Ass'Y

Control

Switch

Display

P.C.B.

MSC7112-01SS

IC

2SC1740S

TR

2SC1740$

TR

2SC17408

TR

2SC17408

TR
TR

2SC1740S
2SC1740S

TR
RK

33K

RK

lOK

RK

lK
lK

RK

47K

RK

47K

RK

47K

RK

47K

RK

47K

RK
RK

47K
10

RK
RK

lOK

4.7K

RK

15K

RK
RK

lOK

100P

cc

100µ

CE

1µ

CE
Tact

Switch

Tact

Switch

Tact

Switch

Tact

Switch

lOP

Connector

SP

Connector

FL

Display

FL

Cushion

FL

Stopper

60V

l/6W
1/6W
1/6W
1/6WJ
1/6W
1/6W

1/6W
1/6W
1/6W
1/6W

1/6W
1/6W
1/6WJ
1/6W

1/6W

60V

6.3V

Ass'Y

(2)

(2)

&

&

J
J
J

J
J

J
J

J

J
J

J
J

J

J

Ass'y

19

Fig.

8.7

9. SCHEMATIC DIAGRAMS

9,1,

IC

Block

Diagrams

lnver1in9 Input A

Non-lnverlin9

Fig,

9.1.1

Input

A

-v

Operational
4558DD,

(TOPV!EW!

45560,

Amp,

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Input

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Non-Inverting

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IC

45580,

2043DD

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Motor

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Forward

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Driver

6-----

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LB1649

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SIG

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SIG

A3

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_______________

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Analog

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SW83

Selector

B!

62

TC9145P

I

...J

'°

SIG

9

COM 8

83

20

U501

µPD75106CW

Pin

Signal
Name

No.

-

1
2

REM

3

4

RELP

5

LVR

LVL

6

7

KSl

8 KSO I

MREM

9

10

HD2/3

-

11

12

DCLK

18

DDAT

14

DEN

15

-

16
17

18

POFF

19

LMUT

20

RMUT

21

BIAS

22
23

-

24
25

HPLY

26

HREC

27

RMSP

(Microprocessing

In/
Out

Not

I

Remote

I

Reel

I

while
running.

Reh

I

converted
is

transferred

via

pin

Leh

I

same
Record

I

Stop/Counter
input.

Stop

Counter
Counter

System

I

"L":

selected.
Connected

I

Not

0

Clock

0

Serial

0

which

infonnation,
Enable

0

Active

Not

I

Power

I

power

Line

0

Record

0

Record

mode.

Bias ON

0

Not

0

Record/Playback

0

"L":

Record/Playback

0

0

Record

L'

Reel
Becomes

used.

control

motor

take-up

input

13

input

as

above L VR

switch

switch

remote

"Tape

used.

(Open)

for

serial

data

includes

signal

"H".

used.

Connected

OFF

is

turned

Power

H
L

mute

mute

mute

/OFF

used.

(Open)

Playback

motor

"L"

H~

L

Unit

Function

Connected

receiver

pulse

reel

for

level

in

this

IC

to

the

(DDAT).

for

level

input.

Search/Counter

ON:

Search

switch

Reset

switch

mode

1"

is

selected,

to

GND.

data

for

Display

display

to

Display

signal

OFF.

OFF

signal

output.

signal

is

released

signal

head

mode.

head

mode.

"L":

speed

select

in

play

Reel

(MPU))

to

input.

hub

meter.

and

Display

meter.
{Reh).

"L"

ov

signal

DDAT

to

input.

output.

output.

select

"H":

select

mode.

motor

GND.

signal

Pulse

is

rotating,

Input

the

Control

The

when

ON:

ON:

3.3V

input.

"H":

at

Control

data

Control

GND.

Becomes

Active

Active

only

"L":

signal

Record

signal

Playback

signal

runs

input.

train

i.e.,

level

converted

IC

function

pressed.
Reset

1.6

v

"Tape

pin

13.
IC (U601),

ond

IC

{U601).

"L"

"L".

"L".

in

Record/Play

Bias

output.

mode.

output.

mode

output.

slow

is

input

tape

is

A/D-

result

(U601)

is

the

switch

2"

control

when

ON.

Signal

Pin
No.

Name

28

-

29

RMR

is

RMF

30

31

NC

32

VDD

33

-

34

35

ASMR

is

36

ASMF

In/
Out

0

0

0

-

-

0

0

0

Not

used.

Reel

motor

Becomes

Reel
Becomes

"H"

H

_J\

L •

motor

"H"

:_J

No

connection,

Supplied

Not

Control
Becomes
reverse
FF/REW).

Control
Becomes
forward
Pause-Play).

used.

with

motor

"H"

{in

motor

"H"
(in

Function

(Open)

drive

control

in

Rewind

Rewind

drive

control

in

Play

or

Play,

'

+5

V.

{Open)

reverse drive signal

when

tuming

the

direction

Turns
reverse.

H

_sL

L

forward

when

turning

the

direction

Turns

forward.

signal

output.

mode.

mode

signal

output.

Fast

Forward

FF

mode

the

control

of

Play-Pause-Stop-

control

drive signal

the

control

of

FF/REW-Stop-

control

output.

motor

output,

motor

mode.

motor

motor

:_sL

Tape

type

select

signal

37
38

39
40

41

42
43

44

45

TAP

B

TAP

A

~

DLBY

MPX

TIM B I
TIMA

REC
PRO

RESET

I

Dolby

I

MPX

I

"L":
Repeat/Timer

Record

I

"H":
System

I

Type
Type

I

Type

II

Type

IV

NR

Mode

DolbyNR
Dolby

NR

Dolby

NR

filter

MPX

Mode

OFF
Auto

Repeat

Timer

Play

Timer

Record

protect

Recording

reset

H l

L

t::=J

mode

OFF
B L
C L L

switch

Filter

switch

signal

Power

input.

TAPA

H H

L H

H/L

select

signal

DLBY

H

signal

input.

ON,

uH"=OFF

signal

TIMA

H H
L H
H L
L L

switch

signal

is

allowed,

input.

ON

Approx.

160

TAP

L

input.

input.

input.

Active

msec

B

B/C
H/L

H

TIM B

"L".

21

Pin
No

46
47

48

49

50

51

52

53
54
55

56

57
58
59

60

61

62

63

64

.

---

---

--

Signal
Name

X2

Xl

-

-

MREC

MPLY

MSTP

RREM

EJC

CAM2
CAMI
CAMO

--

KFF

---

KREW

KPUS

KPLY

vss

In/
Out

-

0

0
0

0
0

0

I

I

I

l
I

I

-

4

MHz

crystal

Not

used.

Record

mode

Play

mode signal

Stop

m o

de

System

remote

Not

used. (Open)

Cassette
Becomes
is open.

Cam
mechanism
of

In

switch

CAMO,

FF switch

REW switch

Pause swit

Play

switch

Ground

ed.

Function

is connected

(Open)

signal out

output.

signal

output. Active "L".

return

switch

can

CAMl

signal

signal

ch

signal

signal

signal

while the

signal

be

and

input. "L"

input.

input.

"L"

.

put.

Acti

signal

input.

Casse

input. Mode

sensed

according

CAM2.

"L"

input.

"L"

"L"

Active "L"

ve "L".

outpu

t.

Cover

tte

when

pressed.

when pressed.

when presse

when

pressed.

to

.

of

Ass'y

the

states

d.

P13/ 1NT3

P12

/

1NT

Pl

f I INT I

P

IO/ INTO

PTH03

PTHOZ

PT HO I

PT

P22/PCL

P21

/PTO

P20

/ ?TOO

P

03

P02/SO

POl/SCK

POO /

INT

Pr 23

p 1

p 12 1

P120
P 1

p t

P 13 I

p

P143

P142

P 14 I

P l

HOO

TI

T

p

/ $I

130

v

Vss

Vss:

Voo: •5V

1

RESE

Xl.X2: Oscillator Jn/ O

3

I

0

2

1

GNO

T :

Res

et

ut

UlOl

Pin

N

1

2 ,41

3

4,3

E

5

2

O

II

23

I

4

22

33

32

40

NC

oo

(T

OP VIEW

P90
P9
P

92

P9
P80
PS
P82
P

83

P

70
P71
P72
P73
P6
PG I

P

62
P63

XI

X2

RESET

P50
P51
P52
P53
P40
P41
P4
P43
P30
P3
P32
P33

)

TIO

PT0

0/P20

T II

PTOl/P21

Sl / P 0 3

SO/

P

SCK

/PO

INT

O/PIO

lNT

I /

Pl

1NT2/

P I 2

1NT

3/Pl3

lNT

4/POO

PTH00-PTH03

BAS

l C

lNTfRVAL

TIME R

PROGRAM COUN T

(

CO

PC

CL

OUTP

NTROL

L/P22

OCK

6016x8

UT

02

I

I

Fig. 9.1.4

(13)

PR

MEM

ROM

OGRAM

ORY

Bils

OlV[OER

CLO

ER

)

Fx

/2.

N

CK

CLOCK

GE

NERATOR

XI

Microprocessing

DECODE

a

CO

NTROL

X2

STAN08Y

CONTROL

Unit

IOATA MfMORYI

320x4

(MP

U) µ

RA

M

Bi1s

MPU

CLOCK

-

b b

V

ao

Vss AESE T

P075106CW

POO-P03

PIO-P13

P20-

P23

P30-P3

P

40 -P43

P50-P53

PGO-

P63

P70-P73

P80 -P83

P9

0-P93

P12

0-P123

Pl30- P 133

P1

40-P

3

143

7

.

8,3

9,3

10,3:

11,

12,3

1 3,31

U60

Pin
No

.

1

2

3

4
5

to

16

.

17
to
21

3~

,

'

3:

:

l

22

22

UlOl

Pin

1

2,41

3

4,39

5

6,37

7,36

8,35

9,34

10,33

11,32

12,31

13,30

CX20188

No.

(Dolby

Signal

Name

Vee

Rec.

In

I

Ref.

PB

In

CAL/Rec./
PB

PB

FB

Rec.

FB

GND

Line

Out

SSK

VF

In

HPF

H

TCH

2

w

NW

:

1-Q

.,~

MO

::::

~

N

.,

~

I

N

"

N

.:

k

N

N

I

I

:i:

I

>-<

N

N

N

:i:

.!.

N

I

I

N

N N

N

I

I

I

--'

J,

--'

-,

I

I I

I
I
I
I

I

L_l-N

v

T

>

.:

"'

NR

IC)

Function

Positive

power

supply

R

ecord

isg

nal

input

Reference

PB

Calibration/Recording/Playback
minal.

Playback

Record

GND

Line
min

Spectral

Encode

HLS

HLS
tion

signal

signal

terminai

signal

al.

circuit

high-pass

detector

terminal

current

input

signal

feedback

.

(decoded

skewing

input

filter

2.

.,

..

input

terminal.

input

terminal.

feedback

terminal.

signal)

switch terminal.

terminal.

terminal.

time

constant

Fig

terminal.

terminal

terminal.

, 9.

1.5

.

select

output

determina-

·.:;

Dolby

ter-

ter-

NR

"'-

-,

:i:

~

..

:i:

IC

Pin

14,29

15,28

16,27

17,26

18,25

19

20,23

21,22

38

40

42

..,_

-

.!,

:i:

u

,_

CX20188

No.

,24

:i:

u

,_

Signal

TCH

WTH

TCL

TCL

WTL

HPFL

ANTS

Rec.

OFF

CAL

VEE

,_

I

~

Name

1

2

1

Out

/B/C

In

"-

-,

--'

u

,_

~

HLS
tion

terminal

HLS

LLS
tion

terminal

LLS
tion

terminal

LLS

weighting

LLS

high-p

Anti-saturation

Record
te

rminal.

Dolby
terminal

Calibration

Negative

O"

-

-1

--'

~

..

:i:

Function

detector

weighting

detector

detector

signal

NR

.

power

__J

NT

,

0

~

time

1.

terminal.

time

2.

time

1.

terminal

ass

filter .terminal.

terminal.

(encod

OFF/B-type/C-type

input

terminal. Not

supply

I

I
I

I

I

I
I
I

I

constant

constant

constant

.

ed

input

signal)

select

used.

terminal.

determina-

determina-

de

termina-

output

I

U601

Pin
No.

1
2

3

4

5

to

16

.

17
to
21

22

MSC7112

Signal
Name

OSCl
OSCO

--

POR

VDD

Dl
to
Dl2

LEDl
to
LED5

vss

(Display

In

/

Out

I

0

I

-

0

0

-

Controller)

An

RC

oscillation

Reset

signal

reset

when

Supplied

FL

tu

be

(D8-Dl2

Not

used.

Ground

Function

circuit

circuit.

inpu

"L"

with

grid drive

are

(Open)

ed.

.

+5

not

is

t

V.

output.

used.)

conn

at

ect

power

ed

for

ON.

making

The

IC

an

Pin

Signal

No.

Name

23

VEE

24

SEG

is

to to

39

40

41

42

SEG

SCLK

DATAIN

LOAD

In

/

Out

-

Supp

P

0

FL

tube

A

(SEGP -SEGN

I

Shift

Shif

rising

I

Contro
mechanism

I

Da

internal

ts t

ta

lied with

anode

clock

he

data

edge.

l &

latch

register

Function

- 25

V.

drive

are

input

for

at

pin

displa

y

control

MPU

pulse. The

at

the

output.

not

serial

Active

used

.)

internal

41

(DATAIN)

data

(U501).

data is latched

falling ed

shift

sent

ge.

"H''.

register.

at

from

MSB

every

first.

to

the

the

constant

al.

constant

determina-

determina-

constant

-

nninal.

al.

ded

signal)

e/C-type

Not

mput

tenmnal.

shift

(DATAIN)

determina-

output

select

used.

register

at

every

.

data

is

latched

edge

sent

MSB

.

from

first.

to

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tube

side

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colors

view

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shown

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in (

).

illustrated

unless

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36

37

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TIMING CHARTS AND EQ. AMP. FREQUENCY RESPONSE

'l':l:mi.na

Overall

Charts

Timing

Chart

(2)

Mechanism

Control Button Ploy

Mode

Control

Timing

Stop Ploy

Reel

Line Mute

Rec.

Chart

Mode

Blos

Mute

Pause

Motor

Stop Ploy Stop

I

Rec.

+ Ploy

Pause

Rec.IP lo

Ploybock

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Fig.

12.1.1

Rec./Pouse

Record

Rec./Pouse Rec,/Ploy stop

I I

I

I

L_

Rew.

F.F. Ploy

Rew.

F.F.

Pio

Stop

Stop

Control Motor

Reel Motor

CAMO
CAMI
CAM2

Fwd.

Rev.

Fwd.
Rev.

"

'

"

'

"

'

CAMO/l/21Com
Control

Motor

Reel

Motor

Position Switch

Dlrecllon:

Direction:

Conlochl:

Fwd.•F.F./Rew,+Sfop-

Rev.•

Ploy-

Fwd

... PloyorF.F.

Rev

...

Pause

Rew.

L•ONtMoke),H•OFF!Breok)

Pause-Ploy

-stop-F

.F./Rew.

Fig,

12.1.2

28

12.2.
(1)

Eq.

Amp,

Playback

Frequency

Frequency

20

Response

Response

(2)

Record

iii

"O

z

~

..

"'

Current

J5

JO

5

0

-5

-JO

-J5

20

20

J5

JO

5

0

Frequency

'

....

~~,

Response

~

,......,

....

~

JOO

......

!'....

.........

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...

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FREQUENCY

Fig,

12.2.1

(Hz I

J20µs

!Type

.

(Type

I I I

_

......

II

'

70µs

Ir,

1111

!Type II

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,,,~

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/

.\

/

/

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/

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70µs

(Type Ill

I

70µs

!Type

rv1-

~

-5

20

JOO

JK

FREQUENCY

Fig,

12,2,2

29

(Hz I

JOK

20K

13.

SPECIFICATIONS

Track Configuration

Heads

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

Motors

<Tape

Transport>

<Mechanism>

Power

Source

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

Power Consumption

Tape Speed

Wow and Flutter
Frequency Response

Signal to Noise Ratio

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

Dolby C-Type

<70

µs,

Type

Dolby B·Type

<70

µs,

Total

Erasure

Channel

Crosstalk

Bias Frequency . . . . . . . . . . .

Input

Type

Harmonic

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

Separation

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

(Line)

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

........

.......

..........

........

..........

........

NR

On

IV>

NR

On

IV>

Distortion

.........

. . . . Less

Output

Line

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

Headphones

Fast-Wind Time

Dimensions*

Approximate

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

...........

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

Weight

........

4 tracks/2-channel stereo

2 (erase head x 1, record/playback x
DC

servo motor (capstan drive) x 1

DC

motor

(reel drive) x 1

DC

motor (cam drive) x 1

120,

220,

240

or

25

W max.

1-7/8

ips. (4.8 cm/sec.) ±0.5%

less than

less

20-20,000

Better

Better

Less
Better
Better
Better

105

50

0.5 V

2.2

Approx.

430
16·15/16

±0.11

than

0.06% WTD RMS

Hz ±3 dB

than

70

than

64

than

1.2%

than

1.6%

than

60

than

36

than

(400

60

kil

Hz, O dB)

Hz

mV/40

mW/8 Q

95

seconds (with C-60 cassette)

(W) x 100

(W) x

% WTD Peak

dB

dB

<400

<400
dB
dB (1 kHz, 0 dB)
dB

(400

(H) x

3·15/16

110/127

(400

(400

(100

(1

Hz, 0 dB)

/220/240

Hz, 3%

Hz, 3%

Hz, 0

dB

Hz, 0 dB,

Hz,

+10

kHz, 0 dB)

320

(D)

mm

(H) x

THD,

THD,

Type
Type

dB)

12·5/8

5.4 kg/11 lbs. 14 oz.

1)

V,

50/60

!HF

A·WTD RMS)

!HF

A-WTD RMS)

I/IV>

JI>

(D) inches

Hz

*:

Dimensions

• Specifications and Design

• Dolby noise reduction manufactured under license from Dolby Laboratories Licensing Corporation.

• "DOLBY" and the double·D symbol OD are trademarks

do

not

include protruding parts. Height

are

subject to change for further improvement

is

the panel height.

of

Dolby

without

Laboratories Licensing Corporation.

notice.

30

Service Manual

Cossette

Deel<

2

Nakamichi Corporation/Tokyo Office
Nakamichi America Corporation
Nakamichi Canada
Nakamichi
Nakamichi GmbH

00061311A

Australia

Shinjuku Daiichi Seimei Bldg., 2-7-1 Nishishinjuku, Shinjuku-ku,
19701 South Vermont Ave., Torrance, CA
276

South West, Marine Drive, Vancouver, B.C.

Level

2,

61A

Dunning

Ave.,

Praunheimer LandstraBe 32, 6000 Frankfurt

Rosebery,

90502

N.S.W.

Phone: [phone]

VSX

2R4 Phone: (604)

2018

Phone:

Main

90

Phone: [phone] (Office),

(02)

Tokyo

163 Phone: [phone] Telex: 2324721 (NAKAM J)

324-7535

313--707117090

2025

(Service)

0·900910A

Printed

in

Japan