Clarion HE-202A-B Service Manual

Cf-AR.IOI\T

SEFIVIC)T

MANLJAL

L

ATRAC}<

MODEL

CLARION

UsA

EUROPE BRANCH:

SHOJI. CO., LTD.

NEW KOJIMACHI BLDC.,3, 5-CHOME,

BRANCH: CLARION

2306 COTNER AVENUE,

2OoO HAMBURG 76,

CARTRIDGE

STEREO

PLAYEFI

HE.ZOZA(B)

SHOJI. CO., LTD.

CLARION SHOJI

LOS ANGELES, CALrF.,90064,

SCHOENE AUSSIOHT 35. OERMANY. PHONE:

KOJIMACHI,

(EUROPA)

OHIYOOA.KU,

(U.S.A.)

G.m.b.H.

u.s.a.

ÏOKYO,

pHoNE

2207ao7

FOR

HOME IJSE

JAPAN.

No.272-1178.272-1'l

PHONE

NO.265-2931-4

69. 479-5556.

:I.SPECIFIGAT!ONS:

TAPE SECTION

Reproduction:

Tape

speed:

Wow Flutter: Crosstalk

L

Crosstalk

AUDIO

SECTION

Círcuit

Audio

output:

Rated

output:

Distortion factor:

Gain and input lmpedance:

ratio:

S/N

Voltage

(adjacent):

(left

method:

amplif

and right):

(includes

ication

degree:

8 tracks, 2 channel, 4 stereo system

(9.5

37c ips.

Below Above 40dB Above

tape reproduction

Semi complimentary SEPP Above 3OW

5Wx2

Below lYo PHONO. PHONO.

AUX

Mtc

PHONO. 1 Above

PHONO.

cm/sec.)

0.37o

3OdB

ITL.

OTL

(at

the rated output)

1 Below 3mv(50ko)

Below

2

Below 150mV

Below

Above

2

AUX Above

Mtc

ïAPE

PHONO. 1 Above PHONO.

AUX

Mtc Above

Above Above

2 Above

Above

program

section)

150mV

(150ko)

3mV(10kO)

55dB 65dB 65dB 65dB 45dB 65dB 32dB 32dB 60dB

Frequency

Output band

Residual

Output

Damping Power supply

Power consumption:

Semiconductors:

Dimensions:

Weight:

characteristic:

width:

output:

impedance:

factor:

voltage:

or 2SC458LG

25C732

or 2SC458L

2SC373

or 2SC984

2SC735

25A562

2SD235

M-851 3A

x 1

SH-l

(OO1-0072-00

lODC

or 25A565 or 2SC1061

HV-23, HV-46

or

PHONO. PHONO. 2 30Hz

AUX 30Hz MIC 50Hz TAPE

(Stereo,

frequencyl

tion

30Hz

-

Each terminal

8Ox2

Above 20

AC 117V

50Hz)

Below 60W

19 transistors

x 7

x 2

x 4

x

2

x 4

x

6

or 0071-001

14"(356m/m)

1O.2"1259mIm)

7.9"(200m/m)

lbs.

14.4

í 30Hz

50Hz

endless

30,000H2

below 8mV

(8O)

6OHz(AC

(at

and

x 2

width,

(6.5

kgl

30,0O0H2

-

-30,000H2

30.0O0H2

-

-30,0O0H2

10,000H2

-

tape reProduc-

220V

max output)

1 1

diodes

height,

dePth

-t-

Printed

in Jopon 298-,l58ó-0C

*COMPONENTS:

MICROPHONE

DMA.O48-OOO

HE.2O2A

HA-2022-O4

280-291 280-2851

cAA-o10-000

HE-2028

HA-2022-O5

ss7-00

920-1

CAA-OI0-000

,fiEXTRA

SPEAKER

Specifications:

.

2way

o

Diameter

.

lmpedance:

o

Maximum

.

Output

o

Frequency

.

Dimensions:

.

Weight:

HEAD

PHONE

6-00

-O0

ACCESSORIES:

KIT

SKA.O3O

speaker

of speaker:

permissible

sound

characteristic:

(air

system

input:

pressure:

HPA-OO3.OOO

Main Owner's Owner's

pump

Oil

Main unit

Booklet bag

pump

Oil

tight)

bass

treble

8í)

20W

98dB 50

-20,000H2

Width

Height

Length

10 lbs.

unit

guide guide

6%"

(cone

type)

10.2"(259mlm), 16"(406m/m),

8"(2}2mlml

(4.5

kg)

3"

(16

(7.5

Set

1

Each

í

Each

1

1 Each

1 Set

Each

1

Each

1

cml

cm)

Specifications:

o

Type: Moving type unidirectional

microphone

r

Frequency characteristic: 100

.

lmpedance:

.

Sensitivity:

.

Lead length:

.

Weight:

.

Microphone

stand:

-9,000H2

1oko

-60d8

(2m)

Ít.

6.6 lbs.

2.85

201-01 20-00

*FEATURES

r

Reproduction oÍ possible.

magnetic or

d ispl ayed.

.

With the LE-301 FM

multi band

phone

is available and by

pleasant

.

Sound in

combined

o

ITL-OTL circuits

mixed

8

By

combined use

crystal

broadcasts

performance

beautiÍul color can

with the color

but the input transformer

semi-complementary those troubles

maximum

ful aud

o

The compact

signed

bined

and oÍÍice.

with speakers, the unit is well suited Íor both home

due

less than 1o/o

with

io characteristic.

silver color front

with consideration to

track

type stereo

with a

pick-up,

eliminate not only the output transformer

to

excellent record

stereo

can be received. An

employing a dynamic microphone,

can

sound

as well by

lTL.

SEPP.

transformers. Audio output is 30W at

distortion

pack

record

cartridge

be enjoyed.

visually

be

(extra

graph

OTL

panel

ease of operation. When

(130

s)

(cartridge

set, wonderÍul

tape)

player

having

perÍormance

exclusive head

FM

enjoyed when

cost).

the

employment of a

thus doing away with

and

displays wonder-

is

mechanically de-

com-

is

a

is

!_

Specifications:

r

Type:

.

Frequency

o

Maximum

o

lmpedance:

.

Lead length:

.

Weight:

HEAD

PHONE

Specifications:

o

Type:

.

Frequency

o

Maximum

o

lmpedance:

.

Lead length:

e

Weight:

characteristic:

permissible

characteristic:

permissíble

MICROPHONE

Specifications:

o

Type:

.

Frequency

r

lmpedance:

.

Sensitivity:

.

Lead

o

Weight:

o

Microphone

characteristic:

length:

HPA.OOI.OOO

DMA-OsO.OOO

stand:

input:

Moving

coil

phone

20

-29,969t1,

0.5w

8l}

(2m)

ft.

6.6 (440

lbs.

9.7

Moving

coil

phone

,'

50

18,000H2

0.5W

8s,

(2m)

ft.

6.6 (350

lbs.

7.7

Moving

type unidirectional

microphone 100

10,000H2

-

10ko

-64d8

(2m)

6.6 ft.

(350

7.7 lbs.

201-O121-OO

type

s)

type

s)

g)

stereo

head

*GENERAL

OPERATION

o

.

power

The circuit

displaying superior characteristic. lÍ

circuit is

to an

prevent

short

overcurrent in each circuit

damage,

and right channel

blow, always

The unit radiation

countered.

lnstall

the unit

(Provide

a

MAINTENANCE AND

INSTRUCTION

stage is composed

circuited,

protecting

power

replace with

should not

be

is unsatisfactory

(BeÍer

to Fig.

place

in a

proper

space between the

a

píopsr

in a

lnstall the unit

(Provrde

of a sem i-complementary

the

transistors will

Íuses

are

supply a 1A rated fuse. installed

'1

sections.

in a location

as inductive noíses

)

where heat

plaoe

where

spaco between

the speaker

be

damaged

directly connected. To

provided

lf

a

radiation

unit and the

hoat radiation is

the unit and the wall.)

in

both left

fuse

should

where heat

may be

is

sufficient.

wall).

suÍÍjcient.

due

en-

I

-2-

1. CONNECTION METHOD

1-1 Speaker connection

Do not mistake terminal order. Facing the

unit, from the left,

(-),

and

the left

side §peaker terminals

(Refer

the right side

to Fig. 2)

!on

Itt

speaker

(j (+).

Torminal

oÍ the main

rear of the

terminals

plate

on the

unit.

are

main

(+)

rear

Amplifier

left and

both

Remove

main unit

rear

unit

mechanism

two

The

printed circuit

the escutcheon.

Íacing

amplifier

the

lf

or

wiring

if

blown

increased.

both sides

i. AmpliÍier

fuse is

This

mismatch

the

output

ïhereÍore.

speaker.

Chassis drawn

protection fuse

channels)

right

rubber

four

the

mechanism

internal panel can not

referring

amplifier

to

protection

board

protection

color sound

speakers

When

are

protection

or faulty

aíter

below

employing

balanced

fuse

employed

connection

transistor,

care

should be exerclsed

wlth

is

x 2

1A

screws,

based

from

removed,

be

4'

Fig.

on

(Hefer

the

to

fuses

left side

Fig'

Íuse

graph carefully'

are

8O

additional

not

are

and

(1A)

protect

to

may-cause

resulting

(individual

withdraw

then

Since

side'

the

are

5)

blows,

employed,

below

remove

mounted

the

of

check

fuses

The

and

speakers,

8O'

the

rear

the speaker

the amplifier.

an

overcurrent in

transistor

in

when connecting the

base.

Rubber

for

fuses

the

the main

internal

the

on

section

will

power

that

insure

Speaker

breakdown.

be

is

L

L,

Right side speikor.

Ngte:

Do

8O.

increased, the amplifier fuse

sound

1-2 Record

With the

PHONO-'l

player,

connect to PHONO-2.

prevent

To

ground

lead to

not use

lf

magnetic type

and for

speakers having

speakers

will

player

of below 8O are used and the

be

heard.

connection

pick-up

crystal

the

inductive

noises,

the GND terminal on the

(PHONO-1) Íór magnotic typo

Receptacle

(Refer

stereo

ceramic

or

connect

(PHONo-2)

an impedance

be blown

will

to

Fig. 3)

player,

pick-up

type

player

the

main unit.

pick-up

ooímic

crystal or

for

Fis.2

blow

of

output

and no

connect to

stereo

board or

playor.

typo

protoction Íuso

AmpliÍieÍ

This Íus is omployéd

the ilplifior.

or omployed to

an

trilsistor,

breakdown.

shouli,

oonnocting

Spoaker mismatch

curront rn the output

ovor

rosulting in transistor

TheÍefore, care

be exorcisod when

tho

protoct

gpeaker.

to

(A)

may

protsct

oaso

Home sloroo

unit bottom sotion.

main

scutcheoG

----

Fis.4

./

To r@ord

day6r.

1-3 AUX

The

output, tape

100mV.

2.

SERVICE

2-1

(auxiliary

AUX terminal is

recorder line

POINTS

lndividual knob operating instruction

When operating the

minimum.

Replacement

2-2

method

input)

used with

output or

SELECT

Íor amplifier

terminal

fuse

to faulty

capacity

speaker

Fuses of the

blown fuses

designaled

due

amplifying

other outputs

radio tuner

appx

of

knob, turn the volume

protection

must be used when

wiring or other

replacing

reasons-.

Fig.

5

o

Cleaning

the

The head surface will

teriorated

occurs During

to

with

clean the head surÍace with a swab

the

rainy season,

(Refer

head

prolonged

to Fig.

become

stereo

clean the

6)

pack

tone

usage.

dipped

hoad

dirty and

head once a week.

Reproducing

quality

When this

in alcohol.

Fis.

de-

6

-3-

.

Motor

CareÍully

hole with

Lubrication

sect ion.

lubrication

apply

two

the attached

is

easily

(ReÍer

or three

pump

oil

performed

to Fig. 7)

drops oÍ oil to

every 1,000 hours.

the

on

rhe

motor oil

main unit bottom

r

AC receptacle

The AC receptacle

(AC

117V

available

however,

receptacle

dangerous.

independent

is

above

for

instructions

220V)

117V

other

located

outtet. This

power

oÍ the

(AC

electrical

rear

on

of the

AC

switch. Power

22OV)

2A.

appliances,

main

117V

Do not

as

such

unit is

an AC

(AC

22OV)

consumption,

employ

practice

a

is

this

is

{.WHEN

(50

Hz

When

the

Remove

main unit

A. Connect

chassis

side of

(Refer

LINE FREoUENCY

Hz)

or 60

the frequency

main unit,

the four

internal mechanism

a white

to

the

terminal.

to Fig.8.)

adjust

lead from

right

of

as Íollows.

rubber

(50H2

Home stereo

tS DIFFERENT

power

the

based

from

the

-+6OHz)

(for

lead

Red

Orange lead (for

main unit bottom

source

difÍers from that

screws, then

the side.

section

withdraw the

motor on the bottom

50Hz)

60Hz)

Fig.7

*INDIV!DUAL

1. AMPLIFIER

Power

supply volrage

Output impedance

1-1 Power

A. lmproper power

quality

distortion

heating.

adjusted.

B.

Ouiescent current Íormed

at the

ln this case,

the

current

20mA).

Measuring

'100

to the

(01

resistor the followíng

LeÍr Riqht

1-2 Power

The

of

maximum

voltage (Upper

V6g

and

distortion

varying

the

of

Normally.

1-3 lndividual

When tape external

and

vacuum-tube table.

input terminal

adjustment

Tone

Left

Volume

SECTION

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

quiescent

stage

(crossover

Therefore,

measurement

amplifier

adjust the

Ílowing

method:

-250mA

2-3250-00)

side

stage voltage

values.

(L)

(R)............

side

undistorted

With

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

of the

lower

waveÍorms increases.) 30kO semi-f

VCf

is

15

-

input

reproduct

performed

or

voltmeter

quality

adjustment

and

right

balance ...........-...........

adjustment

ADJUSTMENT

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

quiescent

current

AC 117V,

(AC22OY

BO

current

quiescent

current,

distortion)

current

may

protectíng

leÍt

in the

the fuse

varied,

síde

range,

adjust

(L)

pre

45

30

Íuse_

to

ampliÍier

removed,

and

the

-55mA

-

balance adiustment

power

output is

stage transistors

become unsymmetrical,

Therefore, adjust

ixed

17V.

terminal

ion

volume

is

extremely

(012-3249-00).

resisror

voltage gain

or

small,

with a CR

to

obtain

the values

Hz

60

SOHz)

adjustment

results

in tone

or transistor

must be

be conveniently per

the value

the 50OO

quiescent

lornd

section

tester

semi-flxed

current

carefully

(15

swjtched

35-4

decreased

unbalanced.

voltage

the volume

gain

.. Maximum

adjustment

measurement

oscillator

in the

Maximum

Center

VCf

Írom an

Íollowing

over-

with

and

by

and

-

to

§

Put into the

B-

Thick Slim

iíl

0

lNV

(9

,6)

@

/,(/

pulley

upside

down.

side ..... for 50 Hz

side

.......-

for

60

Hz

Fig.

Measured

terminal lnput

TAPE

PHONO

1

PHONO

2

Fis.

8

9

AUX

Mrc

FM radio

Note

1.

TAPE

producing ad.iustment

resistor

lf

a test tape

and C192 175pF

4v

lf

the

veniently

cartridge

reproducing

500H2- 10VU Íull

(01

2-27

oÍ the

sígnal from the

1

1dB

'l75rrv

located

voltage mV

140rV

2mV

1 2OmV

I 2OmV

3mV

5OmV

sensitivity

deviates, adjust

4-OOO],.

is

not available.

pre-ampliÍier

CB

value

is hard to read, an

as

shown in

Output voltage V lated Írequency

Above 3.5V Above

3.5V

Above 3.5V Above 3.5V Above

3.5V

Above

3.5V

is

at

set

4V

width tape. lÍ the using the

disconnect

section,

oscillator and adjust the

Fig.

the

then

attenuator

10.

l,OOOHz

1

l,OOOHz

r

t

1dB

sensirivity

1OkO

semi-fixed

leads Írom C2

apply a 500H2,

5OOHz

,OO0Hz

,000H2

when re

gain

is con-

\-

Hz

to

-4-

ATT :

-60d8

1 75mV

V,:

\,12:175pV

Note 2.

lf

measurement oÍ the individual ínput terminals in the

ampliÍier section

check

s:

proves

normal,

perform

the

Fis. 10

following

2-1 Area

lnsert

position

adjustment

the area adjusting tape,

from the top

adjustment to

turning the adjusting adjusting

chassis.

hole

(ReÍer

(employing

(2

channels 2

obtain maximum leÍt

screw with a screwdriver through

indicated

to Fig.

by

1 1)

a test tape)

the

set

-6

and ríght

AREA. ADJ

adlustrng hole

head to

tracks)

printed

the

second

perform

and

outputs by

on

the the

L

A.

When tape the

D

When the volume Írom the external input terminal is small,

check the

Note

3.

reproduction volume

and apparatus connections.

head

connected

apparatus.

is small,

lf the ampliÍier section measurement

check

and

is abnormal, refer to

trouble shooting i nstructions.

1-4 Trouble

(When

A. Program

B.

Speaker

source

performance

C. Ad.lustment

due to fauity

Frequency

D.

The above

thought

characteristics

obtai

faulty

ned.

parts

are all

to

be involved

k-È{r}-*ï

TAPE

PHONO 1 PHONO

2

AUX

Mlc

FM radio cartridge

Higher

hamonics

distortion Íactor

shooting

quality

tone

faulty-

deteriorated.

deviates

parts

in

the ampliÍier.

characteristics

in

the amplifier.

possible

near the

ratings in the following

OHz

5

dB

13t3 16t3

0:! 1

O+1

Ot3

ot3

Below

sal at 5W output F:1,OOOH,

bad tone

acoustically

is

and the

causes.

perform

1

OOHz

dB

11a3

13

L2

0 0 0 o

quality

poor.)

distortion factor

are

considerably

ln

cases where

measurements

5OOHz

1,OO0Hz

dB

o

4+2

3tl

o 0 o o

is increased

varied

the main

to ascertain

table

5,OOOHz

dB

o o o 0 o

due

can be

dB

7x2

ot1

O+1

Or1

0+'1

adjust

unit

the

to

is

if

1

0,oooHz

dB

13Í3

0.5+ 1

0.5t 1

_1il

1r1

2-2 Azimuth adjustment

Refer to Fig.

lnsert the azimuth adjusting tape

to the second

head

tracks) and and right outputs by

a

screwdriver

AZIMUTH ADJ

12

perform

through

printed

position

adjustment to obtain the maximum

turning the

on

Area adiusting

(employing

a test

(5kHz

whole width), set the

from the top

adjusting screw slowly with

the adjusting

hole

the chassis.

screw

tape)

(2

channels,

indicated

Fis.

1 í

2

-6

left

by

Measurement ....

lf

characteristics are near

the

quality

is

still

A. ln

the case

BeÍerence output Reference Load

impedance

quality

Tone

poor;

tape reproduction,

oÍ

voltage

voltage Apply

input

adiuster

the ratings

possible

in the table,

or worn head or deviation of adjustments in the

section. Check the above.

B. With

2. HEAD POSITION

sound from external input, check the apparatus

nection.

AND HEAD ANGLE

ADJUSTMENT

When the

volume,

the

ad.iust

SCTEWS.

head

poor

head

position

sound

position

or angle to the tape

quality

or crosstalk result. ln

by the AFEA, and

deviates,

AZIMUTH

O.115V

par

8o

(Pure

resistance)

Maximum

and tone

causes are a

mechanism

insufÍicient

such

adjusting

1-3

tone

dirty

con-

cases,

-5-

Adjustment

2-3

available

lnsert a

channel,

maximum Next,

quality

stereo

1

-

volume

perform

turning

by

ad]ustment, however,

procedure

(8

pack

tracks), set

5 tracks) and

turning

by

the adjustment

the azimuth

can

when

perÍorm

the area

necessary

be obtained

not

Fig.12

tape is not

a test

the

adjustment

ad.iusting screw slowly.

to the top

head

to obtain the

to

obtain high

adjusting screw.

from this method.

(1

tone

Accurate