Hitachi FX-10 User manual

Table of contents

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3.3

TaN

el

a

Mee

LL

No.so7e

|

FX-10

SERVICE

MANUAL

[E,

Z,

Bl

CAUTION

DANGER

Invisible

laser

radiation

when

open

and

interlocks

failed

or

defeated.

AVOID

DIRECT

EXPOSURE

TO

BEAM.

GEFAHR

Unsichtbare

Laser-Strahlung

wenn

Interlock

(Blockierung)

funktionsuntichtig

oder

abgeschaltet.

UNMITTELBAREN

KONTAKT

MIT

DEM

STRAHL

UNBEDIGT

VERMEIDEN.

DANGER

Faire

tres

attention

aux

radiations

émises

par

le

faisceau

laser

invisible

au

défaillance

du

verrouillage.

NE

JAMAIS

S'EXPOSER

DIRECTEMENT

AU

FAISCEAU.

VARNING

Nér

apparaten

Sppnats

och

skyddsanordningen

felar

eller

satts

ur

funktion

férekommer

osynlig

laserstralning.

UNDVIK

DIREKTE

BESTRALING.

ADVARSEL

Nar

apparatet

abnes

og

beskyttelsesanordningen

ikke

virker

eller

szettes

un

af

funktion,

forekommer

der

usynlig

laserstraling.

UNDGA

DIREKTE

BESTRALING.

ADVARSEL

Nar

denne

delen

er

apen

som

falge

av

at

lasen

er

utkoplet,

eller

ikke

fungerer,

eksisterer

det

usynlig

laserstraling.

UNNGA

A

BLI

UTSATT

FOR

DIREKTE

BESTRALING!

VARIOITS

Laite

lahettaa

nakymaténta

lasersdteilya,

kun

se

avataan

ja

kun

sisdiset

turvalukot

eivat

toimi.

VARO

JOUTUMASTA

ALTTIIKS!

SATEILYLLE.

CONTENTS

SPECIFICATIONS

WIRING

DIAGRAM

D-10

EXPLODED

VIEW

DISASSEMBLY

INSTRUCTIONS

PARTS

LIST

STANDARD

MAINTENANCE

DA-10

ELECTRICAL

ADJUSTMENT

DISASSEMBLY

INSTRUCTIONS

SCHEMATIC

DIAGRAM

INSTRUCTION

FOR

HANDLING

PWB

BOTTOM

VIEW

OPTICAL

SYSTEM

BLOCK

PICKUP

WIRING

DIAGRAM

PRECAUTIONS

FOR

CHECKING

BEAM

EXPLODED

VIEW

EMISSION

OF

LASER

DIODE

PARTS

LIST

PICKUP

REPLACEMENT

HMA-10

CD

ADJUSTMENT

DISASSEMBLY

INSTRUCTIONS

TROUBLESHOOTING

ADJUSTMENT

SCHEMATIC

DIAGRAM

SCHEMATIC

DIAGRAM

PWB

BOTTOM

VIEW

PWB

BOTTOM

VIEW

WIRING

DIAGRAM

WIRING

DIAGRAM

EXPLODED

VIEW

EXPLODED

VIEW

PARTS

LIST

PARTS

LIST

:

HS-FX10

HPT-10/HMA-10

DISASSEMBLY

INSTRUCTION

DISASSEMBLY

INSTRUCTIONS

SCHEMATIC

DIAGRAM

TUNER

ALIGNMENT

WIRING

DIAGRAM

SCHEMATIC

DIAGRAM

EXPLODED

VIEW

PWB

BOTTOM

VIEW

PARTS

LIST

SAFETY

PRECAUTION

following

precautions

should

be

observed

when

servicing.

Since

many

parts

in

the

unit

have

special

safety-related

characteristics,

always

use

genuine

Hitachi's

replacement

_

parts.

Especially

critical

parts

in

the

power

circuit

block

should

not

be

replaced

with

other

makers.Critical

parts

are

marked

with

A

in

the

circuit

diagram

and

printed

wiring

board.

:

ae

2.

Before

returning

a

repaired

unit

to

the

customer,

the

service

technician

must

thoroughly

test

the

unit

to

ascertain

that

it

is

completely

safe

to

operate

without

danger

of

electrical

shock.

The

1.

SPECIFICATIONS

AND

PARTS

ARE

SUBJECT

TO

CHANGE

FOR

IMPROVEMENT

COMPACT

DISC

STEREO

SYSTEM

—

__.,

July

1992

Consumer

Electronics

Division

FX-10

The

caution

labels

on

laser

usage

DA-10

CAUTION:

INVISIBLE

LASER

RADIATION

WHEN

OPEN

AND

INTERLOCKS

DEFEATED

AVOIDEXPOSURE

70

BEAM

ARSEL:

pores

LASERSTRALING

VED

ABNI

SIKKERHEDSAFBAYDERE

€R

UDE

AF

FUNKTION

UND!

ease

TENSE

FOR_STRALING.

;

AVATTAESSA

af

SUQJALUKITUS OHITETTAESSA

OLET

Ara

NAKYMATTUMALLE

LASERSATEILYLLE

ALA

KATSO

Cc

LASS

1

VARNING:

—_

OSYNLIG

LASERSTRALNING

NAR

DENNA

DEL

AR

LASER

PRODUCT

OPPNAD

OCH

SPARREN

AR

URKOPPLAD

BETRAKTA

EJ

STRALEN!

HITACHI

sectto

DA-to

MADE

IN

SINGAPORE

HECHO

EN

SINGAPUR

Hitachi

Ud

__

FABRIQUE

A

SINGAPOUR

SPECIFICATIONS

e

Preamplifier-Tuner

(HPT-10)

Dynamic

bass:

7OHz

10

dB

e

Accessories

Tuning

range:

FM

:

87.5

to

108.0MHz

(SOKHz

step)

Signal

to

Noise

ratio:

96dB

AM

foop

antenna:

1

MW:

522

to

1,611kHz

(9kHz

step)

Antenna

holder

and

screws:

Iset

LW

:

153

to

281kHz

(kHz

step)

e

CD

Player

(DA-10)

System

connector

cable

(9P):

1

Sensitivity

(S/N

26dB):

FM

:

1.54V

Frequency

response:

5

to

20,000Hz

System

connector

cable

(15P):

1

MW:

61dB/m

Dynamic

range:

98dB

Pin

cord

(2P):

1

LW

:

68dB/m

Signal

to

noise

ratio:

103dB

Pin

cord

(1P):

2

Signal

to

Noise

ratio

Distortion

(1kHz):

0.007%

Remote

control

(RB-10)

1

(mono):

70dB

Separation

(1kHz)

97dB

Separation

(Stereo):

40dB.

input

sensitivity:

Aux

300mV/47kohms

e

General

Specifications

Phono

3mvV/47kohms

(switchable)

Power

supply:

AC230V,

50Hz

[E,Z]

DAT

300mvV/22kohms

Power

consumption:

330W

AC240V,

50Hz

[B]

Output/impedance:

DAT

rec

200mV/tkohms

Dimensions:

Pre

out

200mV/1kohms

CD

Player:

225

(W)

x

83

(H)

x

262

(D)

mm

Frequency

response:

10

to

20,000Hz

(DAT)

Preamplifier-Tuner:

225

(W)

x

83

(H)

x

275(D)

mm

Distortion

(1kHz):

0.005%

Tape

Deck:

225

(W)

x

115

(H)

x

262

(D)

mm

Signal

to

Noise

ratio:

95dB

Power

Amplifier:

225

(W)

x

115

{H)

x

321

(D)mm

Tone

control:

Bass

+/-8dB

(100Hz)

Weight:

Treble

+/-8dB

(10kHz)

CD

Player:

2.0kg

Preamplifier-Tuner:

—1.8kg

e@

Tape

Deck

(D-10)

Tape

Deck:

2.8kg

Frequency

response:

Nor:

40

to

15,000Hz

Power

Amplifier:

5.9kg

CrO2

:

40

to

16,000Hz

Timer

accuracy:

Within

60

seconds

at

monthly

Metal

:

40-17,000Hz

rate

Signal

to

Noise

ratio:

72dB

(Dolby

C

on)

56d8

(Dolby

off)

e@

Speaker

Systern

(HS-FX10)

Wow

flutter:

0.08%

wrms

System:

16cm

3-way

speaker

system

Impedance:

6ohms

@

Power

Amplifier

(HMA-10)

Max.

Power

(Music):

100W

Output

power:

SOW

+

50W

0.02%

(SINUS)

Dimensions:

199

(W)

x

396

(H)

x

255

(D)

mm

Distortion

(1/42P):

0.015%

Weight:

10kg

Frequency

response:

10

to

50,000Hz

Specifications

are

subject

to

change

without

Input

sensitivity:

200mV/47kohms

notice

for

performance

inprovement.

Check

that

exposed

parts

are

acceptably

insulated

from

the

supply

circuit

before

returning

the

instrument

repaired

to

the

customer.

INSTRUMENT

-

Checking

method

|

Power

(Operate)

switch

is

set

to

ON.

(Exposed

part)

Next,

measure

the

resistance

value

between

the

both

poles

of

attachment

cup

(Power

supply

plug)

and

the

CD

OUT

terminal

of

rear

plate

and

check

that

the

resistance

value

is

500

kohms

or

more.

Insulation

tester

(DC

500V)

DISASSEMBLY

INSTRUCTIONS

CASSETTE

DECK

1.

Open

the

cassette

covers

and

take

out

the

cassette

tapes.

2.

Remove

five

screws

(@

holding

the

metal

case.

3.

Remove

six

screws

holding

the

cassette

mechanism

set.

Figure

1

5.

Remove

a

screw

©

and

eight

screws

©

holding

the

cassette

mechanism.

6.

Push

two

tabs,

take

out

the

cassete

lid.

Figure

3

FX-10

Remove

eight

screws

©

_

holding

the

deckamplifier

PCB.

Figure

2

FX-10

|

STANDARD

MAINTENANCE

Whenever

a

unit

is

brought

in

for

service

or

repair,

it

should

be

cleaned

and

lubricated

and

the

head

should

be

demagnetized.

1.

Cleaning:

Clean

the

head

and

all

tape

handing

surfaces

using

standard

cleaner

and

cotton

swabs.

Wipe

dry.

2.

Demagnetization:

Do

not

use

magnetized

tools

near

the

head,

since

they

can

magnetize

it.

With

normal

use,

the

head

with

retain

small

amounts

of

residual

magnetism

which

results

in

increased

noise

and

loss

of

high-frequency

response.

Use

a

standard

tape

head

demagnetizer

to

demagnetize

the

playback

head.

3.

Lubrication:

Use

a

high-grade

of

specially

formulated

lubricant

in

the

appropriate

places.

Lubrication

is

normally

required

only

when

parts

tend

to

bind,

or

after

long

period

of

use.

Use

all

lubricants

sparingly

and

avoid

contact

with

other

parts.

ELECTRICAL

ADJUSTMENT

Pre-Adjustment

Procedures

1.

Be

sure

to

demagnetize

and

clean

the

head

before

proceeding

with

head

adjustment.

2.

Never

use

a

magnetized

screwdriver

for

the

head

adjustment.

Tape

Speed

Adjustment

(Figure

4)

a

ae

Connect

a

Frequency|

Cassette

1

|

Cassette

1

FIR

|

|

vRa01

*

Test

Tape:

MTT-111N

Counter

to

the

CN201

*

2940Hz~3060Hz

of

Fig.

4.

Cassette

2

F/R

VR402

Set

(Deck)

Frequency

Counter

[Sd

Figure

4

FX-10

Playback

Head

Azimuth

Adjustment

(Cassette

1)

(Figures

5

and

6)

1.

Connect

and

output

meter

or

oscilloscope

to

each

of

the

CN201.

2.

Playback

and

12.5

kHz

test

tape

and

turn

the

azimuth

adjustment

screw

to

obtain

the

maximum

output

level

of

the

left

and

right

channels,

in

the

forward

and

reverse

play

modes.

3.

When

the

output

level

of

the

left

and

right

channels,

and

forward

and

reverse

position

differs,

readjust

to

the

make

the

both

channels,

and

both

directions

at

the

same

level.

4.

After

adjustment,

secure

the

screw

with

lock

paint

or

glue.

Record/Playback

Head

Azimuth

Adjustment

(Cassette

2)(

Figures

5

and

6)

1.

Connect

and

output

meter

or

oscilloscope

to

each

of

the

CN201.

2.

Playback

and

12.5

kHz

test

tape

and

turn

the

azimuth

adjustment

screw

to

obtain

the

maximum

output

level

of

the

left

and

right

channels.

3.

When

the

output

level

of

the

left

and

right

channels

differs,

readjust

to

make

the

both

channels

at

the

same

level.

4.

After

adjustment,

secure

the

screw

with

lock

paint

or

glue.

Set

(Deck)

Output

Meter

i

——rs

Gnd

——C)

Figure

5

Figure

6

FX-10

Playback

Level

Adjustment

(Figure

7)

[seo]

connect

[song

[Aaun

|

omens

=i

Cassette

1

L-ch

VR217

R-ch

VR317

Cassette

2

L-ch

VR216

R-ch

*

Output

Level

580mV

+2dB

*

Test

Tape:

MTT-150

Connect

a

Output

Meter

to

the

CN201

of

Figure

7.

Bias

Frequency

Adjustment

(Cassette

2)

(Figures

8

and

10)

sof

men

[sete

[rome

[pee

L172

*

105kKHz

+1kHz

Recording

Level

Adjustment

(Cassette

2)

(Figure

9)

Metal

Position

Rec

mode

Connect

a

Frequency

Counter

to

the

TP101

(Bias)

and

TP102

(Gnd).

(Figures

8

and

10)

Connect

a

Output

Meter

to

the

CN201.

Connect

a

Audio

Signal

Generator

to

the

“AUX”

terminal

of

Pre-Tuner

section.

(Figure

9)

Set

the

Deck

REC/

PAUSE

mode

with

normal

Tape.

Adjust

the

level

of

L/R

of

410mV

the

Audio

Signal

Generator.

Record

and

playback.

*

REC/Playback

Level

410mV

+0.5dB

Bias

Current

Adjustment

(Cassette

2)

(Figure

9)

Deck

Amplifier

PWB

Top

View

Connect

Output

Meter

to

the

CN201.

Connect

a

Audio

Signal

Generator

to

"AUX”

terminal

or

Pre-Tuner

section.

(Figure

9)

Set

the

Deck

REC/

PAUSE

mode

with

CrO2

Tape.

Adjust

the

level

of

41imV

at

CN201

the

Audio

Signal

L/R.

Generator.

Record

and

playback

«

REC/Playback

Level

41mV

+0.5dB

—

0dB

Set

(Deck)

Output

Meter

Frequency

Counter

L@-L-G0E-B208

Figure

10

l

|

Gnd

Gnd

A

countermeasure

of

statical

electricity

(Figure

11).

Connect

a

ceramic

capacitor

0.1

UF

the

chassis

to

deck

Figure

7

Figure

8

display

PWB.

Set

(Pre-Tuner)

Set

(Deck)

Audio

Signal

Generator

Output

Meter

I

I

Gnd

Figure

9

Figure

11

ae

-7T-

Sg:

FX-10

Cer

ete

a

1

2

|

i

k

te

Teno

Fs

Tal

a

Make

leakage

current

or

resistande

mesurments

to

betermine

that

exposed

metal

parts

are

acceptably

insulated

from

the

supply

circuit

before

SCHEMATIC

DIAGRAM

ratiininy

the.

sppience

to:

the

custoner

Leakage

current

from

microphone

jack

and

battery

terminals

should

not

exceed

0.7

mA

as

measured

Passette

Deck

through

a

2.0

kohm

resistor

paralleled

by

a

0.45

mfd

capacitor

to

the

earth

ground.

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PRODUCT

SAFETY

NOTICE

Many

electrical

and

mecnanial

parts

in

this

chassis

neve

special

characteristics.

These

characteristics

often

pass

unnoticed

and

the

protection

afforded

by

them

cannot

necessarily

be

obtained

by

using

replacements

components

rated

for

higher

voltage

etc.

Replacement

parts

that

nave

these

special

safety

characteristics

are

identified

in

this

manual

and

its

supplements:

electrical

components

having

such

featues

are

idintified

by

#\

in

the

schematic

diagrans

and

Before

replacing

any

of

these

components.

read

the

parts

list

in

this

manual

carefully.

Tne

use

of

substitute

replacement

parts

that

do

not

have

tne

same

safety

characteristics

es

specified

in

tne

parts

list

may

create

shock.

fire.

TAPE

1

ICs

Voltage

[V]

[

Jicror}ic103]IC105

[3{

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[

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20

|

i

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BIO

1€102]1C106]1C10:

tnJolofaurjr

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co

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(a)

ire)

INC

in

ESE

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—

Bed

ford

ea)

en

fonin

en

co

oo

|

In

bee

ie

ROJO

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4]

|

2

|

[3

|

[4

|

[5

|

[6

|

[

8

|

[9

|

141

|

112

|

[43

|

[14

|

FX-10

PWB

BOTTOM

VIEW

NOTE

TAPE

2

ICs

Voltage

[V]

TAPE

1

}

The

Original

PWB

Top

View.

emi

fcvoa

es

Transistor

Voltage

[V]

Cassette

Deck

Switch

Electrical

capacitors:

@

mark

is

plus

side.

bars

md

ae

Hime

eam

:

rie

ie

a405

To.0

[|

0.0

[

00

|

TAPE

2

Transistor

Voltage

[V]

Cc

[Q702

[13.0

[16.9

|

12.4

|

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ND|—

kes

i

rN

wo

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lo

rei

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of

wo

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SEE

PEERS

URED

er

BEES

ee

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check

position:

Play/Forward

position

X-10

WIRING

DIAGRAM

Cassette

Deck

MOTOR

MOTOR

DECK

AMP.

PW.B.

=

R/P

HEAD

~

DECK

DISPLAY

PW.B.

a