JVC DR-E34BK Bedienungsanleitung

DR-E34BK

DR-E34LBK

JVC

SERVICE

MANUAL

STEREO

DOUBLE

CASSETTE

DECK

RECEIVER

DR-E34BK

MODEL

No. DR-E34LBK

~ -

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Contents

Page

Safety

Precautions

.......

..........

....

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

1- 2

Instruction

Book

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

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

1- 3

Disassembly

Procedures

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

................... 1-16

Explanation

System

Control

....

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

1-17

Description

Major

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

Explanation

Other

.....

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

1-23

Internal

Connections

the

Display

Tube

...

....

1-25

Adjustment

Procedures

(Cassette

Deck)

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

Page

Adjustment

Procedures

(Tuner

)

.....

.......

1-29

Connection

Diagrams

.........

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

...

....

......

.... 1

-30

Schematic

Diagrams

....

......

...

..........

...

.. In

sertio

Printed

Circuit

Boards

.....

......

....

Insert

Block

Diagrams

...

......

...........

......

...

.....

ertion

Parts

List

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

....

........

Separate-vo

ume

Insertion

No.

20162

Mar

1990

www.audiodna.sk

DR-E34BK

DR-E34LBK

-Safety

Precautions

------

---

------,

The

design

this

product

contains

special

hardware

and

many

circuits

and

components

specially for

safety

purposes.

For

continued

protection,

changes

should

made

e original design unless

authorized

writing

the

manufacturer.

Replacement

parts

must

identical

those

used

the

original ci

rcuits.

Service

should

be p

er·

formed

qualified

personnel

only.

Alterations

the

design

circuitry

the

product

should

not

made.

Any

des

alterations

the

product

should

not

made.

Any

design

alterations

additions

will

void

manufacturer

warranty

and

will

furt

relieve

the

manufacturer

responsibility

for

personal

injury

property

damage

sulting

t h

erefrom.

Many

electrical

and

mechanical

parts

the

product

have

special

safety-related

character

istics.

These

characte

stics

are

often

not

evident

from

visual

inspection

nor

can

the

protect

affo

ded

them

necessarily

obtained

using

replacement

components

rated

for

higher

voltage,

wattage,

etc.

Replacement

parts

which

have

these

spec

safety

characteristics

are

identified

the

Parts

List

Service

Manual.

Electrical

components

having

such

features

are

identified

shading

the

schematics

and

( 5 )

the

Parts

in t

Service

Manual.

The

use

sub-

stitute

replacement

which

does

not

have

the

same

safety

characteristics

the

recommended

replacement

part

shown

the

Parts

List

Service Manual

may

create

shock,

fire,

othe

zards.

The

leads in

the

products

are

routed

and

dressed

with

ties, cl

amps

tub

ings,

barriers

and

the

ike

sepa

rated

from

live

parts,

high

temperature

parts,

ving

parts

and/or

sharp

edges

for

the

prevent

ion

electr

shock

and

fire

hazard.

When

service

required

, t he original lead

rout

ing

and

dress

should

observed,

and

should

confirmed

that

they

have

been

return

norma

after

re-ass

embling

Leakage

current

check

(

Elect

rica

shock

hazard

test

ing)

After

re-assembling

the

product

always

perform

isolation

check

the

exposed

metal

parts

the

product

(antenna

terminals

kno

bs.

metal

cabinet.

screw

heads,

headphone

jack,

con

trol

shafts,

etc.)

the

product

safe

operate

without

danger

electrical

shock.

not

use

a li

iso

lation

transformer

during

this

check.

• Plug

the

line

cord

directly

into

the

outlet.

Using a

"Leakage

Current

Tester",

measure

the

leakage

current

from

each

exposed

metal

part

the

cabinet.

particularly

any

exposed

metal

part

having a

return

path

the

chassis,

known

good

earth

ground.

Any

leakage

current

must

not

exce

0.5

(r.

m.s.).

•

Alternate

check

method

Plug

the

line

cord

directly

into

the

outlet.

Use

voltmeter

having 1

ohms

per

olt

sensi-

tivity

the

following

manner.

Connect

1,500.Q

10W

esistor

paralleled

a 0 .

15µF

AC-type

capac

itor

tween

exposed

metal

part

and

known

good

earth

round.

Measure

the

voltage

across

the

resistor

with

the

voltmeter.

EE3

VOL

TMETEA

(Hav

1000

ohms

volt.

sensitivity.)

0--

Move

the

resistor

connection

each

exposed

meta

part,

particularly

any

exposed

metal

part

having a

return

path

the

chassis,

and

measure

the

volt-

age across

resistor

Now

, reverse

the

plug in

the

outlet

and

repe

each

measurement

ltage

measu

must

not

exceed

0 .

V AC

(r.m.s.).

This

corresponds

0.5 rnA

m.s

.).

i Place

this

prnbe

_.__...__

_,,""'

_ _

___._--<

•• on each exposed

15000

,o w

metal

pan.

Good

eanh

ground

Warning

This

equipment

has

been

designed

and

manufactured

meet

international

safety

standards

2. It

the

legal

responsibility

the

repairer

ensure

that

these

safety

standards

are

ainta

ed.

Repairs

must

made

accordance

with

the

relevant

safety

standards.

It is essential

that

safety

critical

compo

nents

are

replaced

approved

parts

mains

voltage

selector

provided.

check

setting

for

local voltage.

1-2 (No.

20162)

www.audiodna.sk

Schematic Diagram

■

Tuner Section

Notes:

i==J

FOR

[

..,

.,.,

Shows

ltage

the

chassis

with

signal

input

indicates

+8 p

owe

supp

ly.

indicates

- 8

power

supply.

ndicates

signal

path.

When

replacing

the

parts

the

darkned

are ( - ) and

those

marked

with

, be sure

use

the

.designated

parts

ensure

safety.

This

the

standard

circuit

diagram.

The

design

and

contents

are

subject

change

without

notice.

DR-E34BK

DR-E34LBK

(No

20162)

www.audiodna.sk

E34

DR-E34LBK DR-E34BK

DR-E34LBK

■

Tuner

Section

(2)

CM)

LEV

UM.DI

181(

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GNAL

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SIGNAL

SIOW..

- - -

- - - - - - - -

- - - -

---

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---

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----

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----

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r-----------------------------------

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---

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r----------

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...

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-'--+--'--+--J._J___.....,_____Ji--4----..J-

......

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~"'~....J:=+--+-.-,

.......

--1--

~ ~

s,\-

----1

---1

----le-

- -

-+---

--1

.,.

Notes:

Shows

age

the

has

sis

with

signal i

nput.

rndicates

powe

supply.

When

replacin

the

parts

the

dark

ned

are

I - ) a

those

marked

wit

.&.

, be sure

use

the

designated

parts

to ensure

safety.

3. i

ndi

cates

- B

power

suppl

This

the

standa

rd c

uit

iagram.

4 .

indica

sig

nal

path.

The

design

and

conten

ts are

sub

ect

change

wit

out

not

ice.

(No.

20162)

(No

20162

)

www.audiodna.sk

■

Cassette

Power

Amplifier

Section

r----------------------------------------------------------------------------------

Notes:

---

1 -

1 1

Shows

ltag

the

chassis

with

signa

input.

indicates

power

supply.

indica

tes

- B

power

supply.

indicates

signal

path.

____

---

AL~

19)

FOR

WEST

8ElllWfY

- ii

~SOI\!

\'Cl.

TASE

SELECTOI!

LOCATIOH

700

0 0

I .

L'=

~:::::::=~==~

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~AA,~~~A>,..A~,._,.,'-A.

•---.

...,.__...,._

._.....

A,'.

.J'l'

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-------

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

. _ .!!•

......

.....

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C.I

1031

Flll>4

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C,.

IJ,

11-M,10tl

replac

the

rts

darkned

are

( - l

and

those

marked wi

Lt.

, be sure

use

the

designated

parts

ensure

safety

This

the

standard

rcuit

diagram

The

sign

and

contents

are

subject

to cha

nge

without

notice

DR-E

34BK

DR-

E34

LBK

(

201

)

www.audiodna.sk

SEA

System

Control

Section

DR-

E348K

DR-E3

4LBK

OR-E34BK

DR-E34LBK

-..or:

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--7

.....

________________

______

_____________

Notes:

Shows

voltage

the

chassis

with

signal i

ind

ates

power

supply

indicates

- B

power

supply

indicates

signal

path.

replacing

the

par

the

darkned

are I - l a

those

marked wi

th&.

, be sure

use

the

designated

parts

ensure

safety.

his

the

sta

ndard c

uit

diagram

The

design

and

con

are

subject

change

without

notice

(No.

20162

)

!No

20162

)

www.audiodna.sk

Printed Circuit Boards

■

Tuner

PC Board (ENA-

094

)

A-

099

)

OR-E34BK

DR-

E34

(No.

20162

)

www.audiodna.sk

■

Cassette

and

Power

Primary PC Board (ENB-

101

roo

t • z

(/)

l/)

DR-E34BK

DR-E34LBK

(No

2016

DR-E34BK

DR-E34LBK

(

2016

I '

www.audiodna.sk

■

System Control and

Display PC Board

(ENC-073)

DR-E34BK

DR-E34LBK

(No.

20162)

www.audiodna.sk

[

■

Cassette and

AMP

PC Board (

ENJ-036)

DR-E3

DR-

E34

LBK

(No.

20162)

DR-E34BK

DR-E34LBK

(No.

62)

www.audiodna.sk

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