Aiwa CS-880E Manual de usuario

AIWA’

[SERVICE

MANUAL)

GENERAL

Semiconductors:

Power

source:

Power

consumption:

Speakers:

Dimension:

Weight:

RADIO

SECTION

Frequency

range:

Intermediate

frequency:

Sensitivity:

(IHF,

THD

3%}

(S/N

dB)

(S/N

dB)

Image

rejection:

Total

harmonic

distortion:

SPECIFICATIONS

ICs,

FET,

transistors,

diodes,

LED's,

LCD

model

Batteries

13.5V

(UM-1

Back-up

power

supply

(for

tuner

memory)

(UM-3,

“AA”

110

120V/220

240V

switchable

50/60

model

Batteries,

13.5V

(UM-1

HP-2

Back-up

power

supply

(for

tuner

memory}

(UM-3

orHP

—7

model

120V/240V

switchable.

50/60

Car

battery

(thru

car

adaptor)

model

140mm¢

(Woofer)

50mm¢

(Tweeter)

170mm¢

(Passive

Radiator)

588(W)

325(H)

163(D)

8.6

87.5

108

MHz

522

1,611

kHz

146

353

kHz

10.7

MHz

MW,LW

450

kHz

(at

88.0

MHz)

(at

98.0

MHz)

(at

108.0

MHz)

47+5dB

(at

594

kHz)

45+5dB

(at

1008

kHz)

42+5dB

(at

1404

kHz)

+5dB

(at

155

kHz)

54+5dB

(at

245

kHz)

+5d8

(at

344

kHz)

45+

6dB

(at

108.0

MHz)

(at

1,404

kHz)

(at

344

kHz)

80+

20dB

(at

88.0

MHz)

2725

(at

594

kHz)

Less

than

1.5%

(at

MHz)

1.7

1.0%

(at

1,008

kHz)

Code

No.

29-880-000-18

DATE

ISSUE

7/1981

(at

kHz)

22+

10dB

(at

MHz)

10dB

(at

1,008

kHz)

65+

10dB

(at

245

kHz)

stereo

separation:

Auto

stop

level:

TAPE

RECORDER

SECTION

Tape

speed:

4.8

cm/s.

Recording

system:

bias

Erasing

system:

erase

Record

bias

frequency:

61+

0.5

kHz

Less

than

1.5%

(PB)

Less

than

1.5%

(REC/PB)

Distortion:

Frequency

response:

METAL

tape

16,000

CrO,

tape

13,000

tape

12,500

than

49/46

[DC/AC}

(PB)

than

44/42

{[DC/AC]

(REC/PB)

than

(REC/PB)

than

28W

(14W

14W)

5s.

(at

C-60)

Mechanical

auto

stop

125

415g

(1.23

0.15N)

Less

than

0.038%

(WRMS)

*18

(343

“143

mN-m)

110

g-cm

(1078

196

mN-m)

MIC

3.5¢

jack

PHONO

jack

Signal

noise

ratio:

(Un-weighted)

Erasing

ratio:

Separation:

Output

power:

rewind

time:

Automatic

stop

system:

Pinch

roller

pressure:

Wow

and

flutter:

Take-up

torque:

rewind

torque:

Input

terminal:

DIN

Input

sensitivity/impedance:

0.3mV/3k2

DIN

500mV/470kQ2

PHONO

4mV

/47k2

Output

terminal:

DIN

EXT.

3.5@

jack

PHONES

6.3¢

jack

Noise

reduction

system

manufactured

under

license

from

Dolby

Laboratories

Licensing

Corporation.

Dolby

and

the

symbol

are

trademarks

Dolby

Labo-~

ratories

Licensing

Corporation.

Specifications

and

external

appearance

are

subject

change

without

notice

due

product

improvement.

-CS-880E,K

AIWA

DISASSEMBLING

CHART

MAIN

PARTS

avoid

troubles

when

disassembling

replacing

the

main

Parts,

the

chart

diagram

below.

DSL

circuit

board

Main

cabinet

Level

meter

Display

circuit

board

circuit

board

Dial

plate

Radio

chassis

(including

radio

chassis,

tuning,

display

MS,

(pattern

side)

Boards)

Tuning

circuit

board

circuit

board

(Part

side)

MD-3

mechanism

AIwA

DISASSEMBLY

INSTRUCTIONS

Removing

the

Main Case

Remove

screws

the

rear

fid

shown

arrows

‘a

>®@

Remove

knobs.

CS-880E,K

Installing

the

Main

Case

Check

that

the

fibre

apper

the

REC/PB

Board

(pattern

die)

fixed

properly.

Nfejcsa

§6=9Firmly

fix

the

fibre

paper

using

two-sided

tape,

etc.

because

likely

lift

when

peeled

off

once.

Lower

all

the

fever

switches

the

direction

the

arrow.

Fiber

paper

Reais)

sure

instal!

the

order

(1)

—

(3).

careful:

when

mounted

incorrectly,

may

damage

the

dial

plate

and

the

display

Boards,

etc.

Bl3)

«Open

the

cassette

lid.

(It

not

required

remove

the

cassette

lid)

Match

the

knobs

while

performing

item

and

tapping

the

side.

®6/]o

«5

AIWA

CS-880E,K

Nike

Removing

the

raciio

chassis

Installing

the

radio

chassis

sure

remove

the

level

meter

before

starting

work

Hook’

the

jack

plate

the

tab

the

rear

lid

while

paying

prevent

the

pointer

the

level

meter

from

being

damaged.

attention

not

pinch

the

wire.

Compress

the

radio

chassis

against

the

direction

the

arrow

after

checking

that

the

tuner

Board

inserted

into

the

rib.

Loosen

the

screw

and

lift

the

hook.

“x

MD-3

mechanism

afi

Remove

screws

and

lift

the

radio

chassis

the

direction

the

arrow.

The

radio

chassis,

REC/PB,

tuner,

and

display

Boards

are

removed

that

time.

“Settee

“Tri

gio

Stee

AAS.

ATS

—

AIWA

CS-880E.K

Removing

Mechanism

Loosen

the

screw

and

remove

the

hook

the

rod.

Remove

screws

VT1@3—~25

CS-880E,K

AIWA

Cautions

Disassembling

MD-3

Mechanism

Disassemble

repair

the

MD-3

mechanism

while

paying

attention

the

springs

and

levers,

etc.

shown

the

figure

below.

The

boss

should

come

this

position.

Lever,

Auto

Lever,

Auto

eject

Boss

(The

boss

the

lever

auto

should

come

outside

the

spring

auto

eject)

Trigger

lever,

REC

Lever,

REC

drive

Check

that

the

cam

always

kept

pressed

the

direction

the

arrow.

Gear,

PALY

T-spring,

Play

lever

Boss

(The

boss

should

the

right

side

the

lever

REC

driver)

sure

hook

the

T-spring

(PLAY

lever)

the

cam

the

gear

when

installing

the

gear

PLAY,

Hook

from

the

inside

the

gear

using

clock

screwdriver

shown

the

figure.

Perform

the

same

for

the

gear

and

cam

gear

PAUSE.

AIWA

DESCRIPTION

THE

MD-3

MECHANISM

Description

the

PLAY

Operation

With

the

plate

button

pressed,

the

trigger

lever

(PLAY)

moves

the

direction

the

arrow

<«

(1),

the

gear

(PLAY)

released

from

the

boss

the

trigger

lever

(PLAY)

engages

with

the

gear

flywheel

and

rotates

the

direction

the

arrow

(2),

the

boss

(A)

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

the

direction

the

arrow

(3)

along

the

cam

groove

the

rear

the

gear

push

the

operation

chassis

the

direction

the

arrow

(4).

The

PLAY

button

which

has

been

locked

released

pressing

the

STOP

button,

the

trigger

lever

(PLAY)

moves

the

direction

the

arrow

(5),

the

boss

(A)

the

gear

(PLAY)

released

and

the

PLAY

operation

stops.

Capstan

Pinch

lever

ass‘y

Lever,

PALY

Trigger

lever,

PLAY

Lever,

PLAY

Flywheel

When

the

STOP

button

pressed,

the

lever

moves

the

direction

the

arrow

and

the

trigger

lever

PLAY

releases

the

boss

(A)

the

gear

(PLAY).

cs.80E,k

AIWA

Description

the

Operation

When

the

button

pressed,

the

trigger

lever

moves

the

pein

ned

HSCeHON

DTG

IRS

ROW

Feet

Dee

eas

ean

eee

lever

moves

the

ron

the

arrow

(3),

the

lever

and

engages

with

the

gear

wheel

rotate

the

direction

the

compresses

the

gear

the

lever

Ass’y

against

the

Take-up

the

trigger

lever

arrow.

(2),

the

boss

(A)

touches

the

boss

reel

disc

ass’y

perform

the

operation.

Boss

lever

Gear,

.—.——

Boss

Trigger

lever,

lever

ass’y

Gear,

Flywheel-

——!

Take-up

reel

disc

Supply

reel

disc-—

lever

ass’y

—

AIWA

CS-880E,K

REW

Operation

When

the

REW

button

pressed,

the

trigger

lever

REW

moves

The

gear

moved

the

direction

the

arrow

(4)

means

the

direction

the

arrow

(1)

and

pushes

the

lever

REW

the

cam

the

gear

following

the

rotation

the

gear

FR,

direction

the

arrow

(2).

The

trigger

lever

releases

the

boss

pulls

the

lever

the

direction

the

arrow

{5)

and

moves

the

gear

that

time,

the

gear

engages

with

the

gear

fly-

the

lever

ass‘y

the

direction

the

arrow

(6)

rotate

the

wheel,

rotates

the

direction

the

arrow

(3),

boss

touches

Take-up

ree!

disc

reel

disc

ass‘y

perform

the

REW

operation.

the

trigger

lever

and

rotation

stops.

Boss

Jever

Lever,

REW

Trigger

lever,

REW

eed

lever

ass’y

Gear,

Flywheel

Trigger

Supply

reel

disc

Take-up

reel

disc

lever

ass‘y

CS-880E,K

AIWA

Description

the

PAUSE

Operation

When

the

PAUSE

button

pressed,

the

trigger

lever

PAUSE

moves

The

PAUSE

lever

moves

the

direction

the

arrow

(3)

along

the

direction

the

arrow

(1),

the

boss

the

gear

PAUSE

the

cam

groove

the

PAUSE

gear

that

time.

The

PLAY

idler

released,

enages

with

the

gear

flywheel

and

rotates

the

lever

and

the

pinch

lever

ass’y

moved

perform

the

PAUSE

direction

the

arrow

(2),

the

boss

touches

the

trigger

PAUSE

operation

that

time.

and

rotation

stops.

When

the

PAUSE

button

pressed

again,

the

button

released

from

locking

and

simultaneously

the

boss

the

gear

PAUSE

released

from

the

trigger

lever

PAUSE

and

the

PAUSE

operation

;

released.

Lever,

PAUSE

Boss

Gear,

PLAY

Boss

Gear,

PAUSE

Gear,

Flywheel

Triggerlever,

PAUSE

Play

idler

lever

Lever,

PAUSE

Pinch

lever

ass’y

—)

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