Aiwa CS-880E User manual

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AIWA’

[SERVICE

MANUAL)

GENERAL

Semiconductors:

Power

source:

Power

consumption:

Speakers:

Dimension:

Weight:

RADIO

SECTION

Frequency

range:

Intermediate

frequency:

Sensitivity:

(IHF,

THD

3%}

(S/N

10

dB)

(S/N

10

dB)

Image

rejection:

IF

rejection:

Total

harmonic

distortion:

a

ne

SPECIFICATIONS

17

ICs,

1

FET,

95

transistors,

68

diodes,

7

LED's,

1

LCD

E

model

Batteries

DC

13.5V

(UM-1

x

9)

Back-up

power

supply

(for

tuner

memory)

DC

3V

(UM-3,

“AA”

x

2)

AC

110

~

120V/220

~

240V

switchable

50/60

Hz

K

model

Batteries,

DC

13.5V

(UM-1

or

HP-2

x

9)

Back-up

power

supply

(for

tuner

memory}

DC

3V

(UM-3

orHP

—7

x

2)

K

model

AC

120V/240V

switchable.

50/60

Hz

Car

battery

(thru

car

adaptor)

E

model

140mm¢

x

2

(Woofer)

50mm¢

x

2

(Tweeter)

170mm¢

x

1

(Passive

Radiator)

588(W)

x

325(H)

x

163(D)

mm

8.6

kg

FM

87.5

~

108

MHz

MW

522

~

1,611

kHz

LW

146

~

353

kHz

FM

10.7

MHz

MW,LW

450

kHz

FM

14

+

6

dB

(at

88.0

MHz)

12

+

6

dB

(at

98.0

MHz)

12

+

6

dB

(at

108.0

MHz)

MW

47+5dB

(at

594

kHz)

45+5dB

(at

1008

kHz)

42+5dB

(at

1404

kHz)

LW

55

+5dB

(at

155

kHz)

54+5dB

(at

245

kHz)

55

+5d8

(at

344

kHz)

FM

45+

6dB

(at

108.0

MHz)

41

+

5

dB

(at

1,404

kHz)

45

+

10

dB

(at

344

kHz)

FM

80+

20dB

(at

88.0

MHz)

MW

2725

dB

(at

594

kHz)

FM

Less

than

1.5%

(at

98

MHz)

MW

1.7

+

1.0%

(at

1,008

kHz)

Code

No.

29-880-000-18

ji

DATE

OF

ISSUE

7/1981

22

+

3

dB

(at

1

kHz)

FM

22+

10dB

(at

98

MHz)

MW

60

10dB

(at

1,008

kHz)

LW

65+

10dB

(at

245

kHz)

FM

stereo

separation:

Auto

stop

level:

TAPE

RECORDER

SECTION

Tape

speed:

4.8

cm/s.

+

3%

Recording

system:

AC

bias

Erasing

system:

AC

erase

Record

bias

frequency:

61+

0.5

kHz

Less

than

1.5%

(PB)

Less

than

1.5%

(REC/PB)

Distortion:

Frequency

response:

METAL

tape

35

~

16,000

Hz

CrO,

tape

35

~

13,000

Hz

LH

tape

35

~

12,500

Hz

More

than

49/46

dB

_

[DC/AC}

(PB)

More

than

44/42

dB

{[DC/AC]

(REC/PB)

More

than

60

dB

More

than

38

dB

(REC/PB)

More

than

28W

(14W

+

14W)

90

+

5s.

(at

C-60)

Mechanical

auto

stop

125

415g

(1.23

+

0.15N)

Less

than

0.038%

(WRMS)

35

*18

gm

(343

“143

mN-m)

110

+

20

g-cm

(1078

+

196

mN-m)

MIC

3.5¢

jack

x

2

PHONO

pin

jack

x

2

Signal

to

noise

ratio:

(Un-weighted)

Erasing

ratio:

Separation:

Output

power:

FF

&

rewind

time:

Automatic

stop

system:

Pinch

roller

pressure:

Wow

and

flutter:

Take-up

torque:

FF

&

rewind

torque:

Input

terminal:

:

DIN

5P

Input

sensitivity/impedance:

0.3mV/3k2

DIN

500mV/470kQ2

PHONO

4mV

/47k2

Output

terminal:

DIN

5P

EXT.

SP

3.5@

jack

x

2

PHONES

6.3¢

jack

e

Noise

reduction

system

manufactured

under

license

from

Dolby

Laboratories

Licensing

Corporation.

e

Dolby

and

the

QQ

symbol

are

trademarks

of

Dolby

Labo-~

ratories

Licensing

Corporation.

©

Specifications

and

external

appearance

are

subject

to

change

without

notice

due

to

product

improvement.

-CS-880E,K

|

|

AIWA

DISASSEMBLING

CHART

OF

MAIN

PARTS

e

To

avoid

troubles

when

disassembling

or

replacing

the

main

Parts,

follow

the

chart

diagram

as

below.

DSL

circuit

board

Main

cabinet

Level

meter

Display

circuit

board

MS

circuit

board

Dial

plate

Radio

chassis

(including

radio

chassis,

tuning,

display

MS,

AF

(pattern

side)

PC

Boards)

Tuning

circuit

board

AF

circuit

board

(Part

side)

MD-3

mechanism

AIwA

|

DISASSEMBLY

INSTRUCTIONS

Removing

the

Main Case

1)

Remove

11

screws

on

the

rear

fid

shown

by

arrows

<.

nN

5

RF

As

‘a

ae

cp

|

iy

<=

Oe

>®@

Oe

>

v

%

i)

v

2)

Remove

9

knobs.

|

CS-880E,K

Installing

the

Main

Case

1)

Check

that

the

fibre

apper

of

the

REC/PB

PC

Board

(pattern

die)

is

fixed

properly.

:

Nfejcsa

§6=9Firmly

fix

the

fibre

paper

using

two-sided

tape,

etc.

because

it

is

likely

to

lift

up

when

it

is

peeled

off

once.

2)

Lower

all

the

fever

switches

in

the

direction

of

the

arrow.

Fiber

paper

Reais)

Be

sure

to

instal!

in

the

order

(1)

—

(3).

Be

careful:

when

it

is

mounted

incorrectly,

it

may

damage

the

dial

plate

and

the

display

PC

Boards,

etc.

Bl3)

«Open

the

cassette

lid.

(It

is

not

required

to

remove

the

cassette

lid)

4)

Match

the

knobs

while

performing

item

3)

and

tapping

the

side.

A

rl

®6/]o

«5

AIWA

CS-880E,K

|

Nike

Removing

the

raciio

chassis

Installing

the

radio

chassis

1)

Be

sure

to

remove

the

level

meter

before

starting

work

to

1)

Hook’

the

jack

plate

to

the

tab

of

the

rear

lid

while

paying

prevent

the

pointer

of

the

level

meter

from

being

damaged.

attention

not

to

pinch

the

wire.

Compress

the

radio

chassis

against

the

direction

of

the

arrow

after

checking

that

the

tuner

PC

Board

is

inserted

into

the

rib.

2)

Loosen

the

screw

and

lift

up

the

hook.

“x

MD-3

mechanism

we

CS

=

i

afi

fA

3)

Remove

3

screws

and

lift

up

the

radio

chassis

in

the

direction

of

the

arrow.

The

radio

chassis,

REC/PB,

tuner,

MS

and

display

PC

Boards

are

removed

at

that

time.

|

“Settee

“Tri

gio

t

ae

Stee

.

7

AAS.

ATS

—

AIWA

|

|

CS-880E.K

Removing

Mechanism

1)

Loosen

the

screw

and

remove

the

hook

of

the

rod.

2)

Remove

4

screws

VT1@3—~25

sf

CS-880E,K

|

|

AIWA

Cautions

on

Disassembling

MD-3

Mechanism

Disassemble

or

repair

the

MD-3

mechanism

while

paying

attention

to

the

springs

and

levers,

etc.

shown

in

the

figure

below.

4

The

boss

should

come

to

this

position.

Lever,

Auto

A

Lever,

Auto

eject

Boss

(The

boss

of

the

lever

auto

A

should

come

outside

the

T

spring

auto

eject)

Trigger

lever,

REC

Lever,

REC

drive

Check

that

the

cam

is

always

kept

pressed

in

the

direction

of

the

arrow.

Gear,

PALY

T-spring,

Play

lever

Boss

(The

boss

should

be

on

the

right

side

of

the

lever

REC

driver)

Be

sure

to

hook

the

T-spring

(PLAY

lever)

to

the

cam

of

the

gear

when

installing

the

gear

PLAY,

Hook

it

from

the

inside

of

the

gear

using

a

clock

screwdriver

as

shown

in

the

figure.

Perform

the

same

for

the

gear

FR

and

cam

gear

PAUSE.

AIWA

DESCRIPTION

OF

THE

MD-3

MECHANISM

Description

of

the

PLAY

Operation

With

the

plate

button

pressed,

the

trigger

lever

(PLAY)

moves

in

the

direction

of

the

arrow

<«

(1),

the

gear

(PLAY)

is

released

from

the

boss

of

the

trigger

lever

(PLAY)

engages

with

the

gear

flywheel

and

rotates

in

the

direction

of

the

arrow

<

(2),

the

boss

(A)

of

the

gear

(PLAY)

touches

the

trigger

lever

(PLAY)

and

the

gear

stops

rotating.

Actuatng

chassis__

——2—_____**—

(

Gear,

Flywheel

Gear,

Flywheel

|

CS-880E,K

When

the

gear

(PLAY)

rotates,

the

lever

(PLAY)

moves

in

the

direction

of

the

arrow

<

(3)

along

the

cam

groove

on

the

rear

of

the

gear

to

push

up

the

operation

chassis

in

the

direction

of

the

arrow

<

(4).

The

PLAY

button

which

has

been

locked

is

released

by

pressing

the

STOP

button,

the

trigger

lever

(PLAY)

moves

in

the

direction

of

the

arrow

<

(5),

the

boss

(A)

of

the

gear

(PLAY)

is

released

and

the

PLAY

operation

stops.

Capstan

Pinch

lever

ass‘y

Lever,

PALY

Trigger

lever,

PLAY

Lever,

PLAY

Flywheel

When

the

STOP

button

is

pressed,

the

lever

moves

in

the

direction

of

the

arrow

and

the

trigger

lever

PLAY

releases

the

boss

(A)

of

the

gear

(PLAY).

cs.80E,k

|

|

AIWA

Description

of

the

F

F

Operation

When

the

FF

button

is

pressed,

the

trigger

lever

FF

moves

in

the

pein

ee

ae

ee

ned

HSCeHON

DTG

IRS

BS

ROW

Feet

AN

Dee

Ot

eas

PH

ean

eee

lever

B

moves

in

the

ron

e

the

arrow

2

(3),

the

ER

lever

C

and

engages

with

the

gear

wheel

to

rotate

in

the

direction

of

the

Z

compresses

the

gear

of

the

FR

lever

Ass’y

against

the

Take-up

f

the

trigger

lever

FF

:

arrow.

«

(2),

the

boss

(A)

touches

the

boss

0

o

reel

disc

ass’y

to

perform

the

FF

operation.

Boss

A

FR

lever

B

Gear,

FR

.—.——

Boss

B

Trigger

lever,

FF

FR

lever

C

FR

lever

ass’y

Gear,

Flywheel-

-

——!

Co

Take-up

reel

disc

Supply

reel

disc-—

FR

lever

ass’y

—

AIWA

|

|

CS-880E,K

REW

Operation

When

the

REW

button

is

pressed,

the

trigger

lever

REW

moves

in

The

FR

gear

B

is

moved

in

the

direction

the

arrow

<

(4)

by

means

the

direction

of

the

arrow

<

(1)

and

pushes

the

lever

REW

in

the

of

the

cam

of

the

gear

FR

following

the

rotation

of

the

gear

FR,

direction

of

the

arrow

<

(2).

The

trigger

lever

FF

releases

the

boss

pulls

the

FR

lever

C

in

the

direction

of

the

arrow

<

{5)

and

moves

A

of

the

gear

at

that

time,

the

gear

FR

engages

with

the

gear

fly-

the

FR

lever

ass‘y

in

the

direction

of

the

arrow

+

(6)

to

rotate

the

wheel,

rotates

in

the

direction

of

the

arrow

<

(3),

boss

B

touches

Take-up

ree!

disc

reel

disc

ass‘y

to

perform

the

REW

operation.

the

trigger

lever

FF

and

rotation

stops.

Boss

A

FR

Jever

B

Lever,

REW

Trigger

lever,

REW

|

eed

FR

lever

C

FR

lever

ass’y

Gear,

Flywheel

Trigger

FF

Supply

reel

disc

E

:

Take-up

reel

disc

FR

lever

ass‘y

~~

CS-880E,K

|

|

AIWA

Description

of

the

PAUSE

Operation

When

the

PAUSE

button

is

pressed,

the

trigger

lever

PAUSE

moves

The

PAUSE

lever

moves

in

the

direction

of

the

arrow

+

(3)

along

in

the

direction

of

the

arrow

<

(1),

the

boss

A

of

the

gear

PAUSE

the

cam

groove

of

the

PAUSE

gear

at

that

time.

The

PLAY

idler

is

released,

enages

with

the

gear

flywheel

and

rotates

in

the

lever

and

the

pinch

lever

ass’y

is

moved

to

perform

the

PAUSE

direction

of

the

arrow

<

(2),

the

boss

B

touches

the

trigger

PAUSE

operation

at

that

time.

and

rotation

stops.

When

the

PAUSE

button

is

pressed

again,

the

button

is

released

from

locking

and

simultaneously

the

boss

B

of

the

gear

PAUSE

is

released

from

the

trigger

lever

PAUSE

and

the

PAUSE

operation

;

A

is

released.

Lever,

PAUSE

Boss

Gear,

PLAY

:

Boss

B

Gear,

PAUSE

Gear,

Flywheel

Triggerlever,

PAUSE

Play

idler

lever

Lever,

PAUSE

Pinch

lever

ass’y

—)

fe

el

10