Kenwood Kx-4520 User manual

|

SERV.

29H

YZ

STEREO

CASSETTE

DECK

Knob(EJECT)

(K29-3807-04)

Knob

(POWER)

{K29-3805-04)

Foot

KX-4520

SERVICE

MANUAL

Cassette

lid

ass’y

(A53-)

GTENEG

GASMITTE

DESK

Kx-a5R0

Dressing

plate

(B50-)

(JO2-

1002-05)

x

Phono

jack

(E13-0482-05)

|

04

KENWOOD

PRINTED

IN

JAPAN

B51-3904-00(B)3301

-

Knob

(REC

LEVEL)

(K29-3804-04)

*

Panel

ass’y

(A20-5919-03)

Remote

control

ass’y

is

Knob

(A70-03

17-05)

(K27-2003-04)

x3

*

AC

inlet

(M

type

only)

(E03-0102-25)

cso

ORE

aR

ek

sem

meacseN

Miniature

phone

(SYSTEM

CONTROL)

(E11-0188-05)

*Refer

to

parts

list

on

page

42.

KX-4520

CONTENTS

CONTROL

AND

INDICATORS.........---------+-555

2

PC

BOARD

(Component

Side

View)

DISASSEMBLY

FOR

REPAIR.....-.-.-----++--

+2005

3

PC

BOARD

(Foil

Side

View)

........

BLOCK

LEVEL

DIAGRAM........-.--..-

2-02

e

sree

eee

5

SCHEMATIC

DIAGRAM

........-..--

CIRCUIT

DESCRIPTION

........---.

02.

eee

renee

6

EXPLODED

VIEW

(MECHANISM)...

MECHANISM

DESCRIPTION.........-.----.--

eee

ee

20

EXPLODED

VIEW

(UNIT)

.........-.

ADJUSTMENT

........2

00

e

cece

enter

eens

22

PARTS

LIST

........

002

eee

ee

eee

REGLAGE

225.08

Soe

et

B

ot

eSNG

heme

Lee

Yee

23

SPECIFICATIONS

.......-.--.--005>

ABGLEICH

3.0.5.

ccc.

cc

pet

ese

tine

0a

sede

gat

oe

te

24

CONTROL

AND

INDICATORS

TAPE/SOURCE

indicators

1

‘

AUTO

BIAS

indicator

PEAK

LEVEL

METER

Operation

indicators

SNTERT!

DOLBY

7

ray

GOUNTER

1)

OMBY

|

ip

me

so

2015

10

7

SB

2

1

0

1

FS

7

OB

1

OO

ence,

Tape

position

indicators

DOLBY

NR

indicators

Display

window

MULTLWAY

COUNTER

CCAS

key

—~\

COUNTER

RESET

key

AUTO

BIAS

key

Eject

key

TAPE/SOURCE

selector

(MONITOR)

key

REC/ARM

PAUSE

key

PAUSE

key

fi

REC

LEVEL

control

knob

Remote

contro!

light

receptor

REC

BALANCE

control

knob

PHONES

LEVEL

control

knob

PHONES

jack

Cassette

holder

Rewind

key

Te}

TIMER

switch

Fast

forward

key

[>>)

Play

key

co

POWER

switch

MPX

FILTER

switch

Stop

k

op

ney

DOLBY

NR

switches

ON/OFF

switch

B/C

selector

switch

Note

on

counter’s

preciseness

The

Jinear

tape

counter

used

with

this

unit

is

not

a

clock,

and

there

is

a

certain

error

between

the

displayed

time

and

real

recording

time

{this

is

un-

avoidable

because

this

unit

has

been

designed

to

be

capable

of

displaying

tape

time

also

during

fast

forward

and

rewind

operations

as

well

as

during

recording

and

playback).

The

degree

of

this

error

is

dependent

on

the

type

of

tape.

om

“*

Take

out

the

case

in

advance.

1.

2.

ONOARW

9.

10.

Remove

the

three

screws

@.

11.

Undo

the

four

catches

()

.

and

disconnect

the

board.

KX-4520

BLOCK

LEVEL

DIAGRAM

Remove

the

five

screws

:

Undo

the

three

catches

,

and

detach

the

front

pan-

el.

Remove

the

three

knobs

and

two

nuts

@.

Remove

the

two

screws

@.

Cut

the

two

convexes

eS

:

Disconnect

the

eight

connectors

6)

.

Unground

@.

Undo

the

two

catches

at

the

both

sides,

and

detach

the

sub

panel

©.

Remove

the

two

screws

@

.

and

detach

the

shield

plate.

KX-4520

DISASSEMBLY

FOR

REPAIR

12.

Press

the

eject

button

to

open

the

cassette

holder

@.

13.

Setaside

the

eject

lever

to

the

left

side

®.

(When

detaching,

draw

it

out

in

the

upper

left

direc-

tion)

14.

Remove

the

four

screws

@

.

and

take

out

the

mecha-

nism.

15.

Disconnect

the

board

(X26)

(B/2)

®.

16.

Remove

the

seven

screws

;

17.

Disconnect

the

connector

.

18.

Draw

up

the

board

together

with

the

rear

panel

rear-

wards.

19.

When

detaching

the

knob

of

the

power

switch,

open

slightly

the

portion

indicated

by

arrows

using

a

lead

punch,

etc.

KX-4520

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KX-4520

CIRCUIT

DESCRIPTION

Description

of

component

Cassette

unit

(X26-1240-00)

Use/function

Operation/condition/compatibility

28C1740S

(Q,

R)

Playback

EQ

time

constant

Selects

between

120

psec

and

70

usec

of

playback

EQ

high-frequency

time

constants!

2SC945

(A)

(Q,

P

selection

switch

nee

i

[tape

_[an.2

|

Tine

constant

|

Normal

3180~120

(psec)

Chrome

3180~

70

(usec)

Metal

3180~

70

(usec)

2SC2878

(B)

Line

mute

switch

For

recording

or

playing

source,

the

10

(LM)

of

microprocessor

1C12

becomes

“H”

2SD1302

(S,

T)

and

044

thereby

turns

OFF

so

that

03

and

Q4

turn

OFF.

REC

-

PLAY

-

SOURCE

OTHER

2SC1740S

(Q,

R)

MPxX

filter

switch

An

“H"

or

“L”

signal

is

output

according

to

the

“ON”

or

“OFF”

operation

of

the

MPX

2SC945

(A)

(Q,

P)

filter

switch

(S1-C/3:

X25-3770

system)

so

that

Q5~Q8

turn

ON

or

OFF.

When

Q5~Q8

turn

ON,

the

MPX

filter

works.

2SC2878

(B)

Recording

mute

switch

For

recording,

the

171

(RM)

of

microprocessor

1C12

becomes

“H”

and

Q43

thereby

2SD1302

(S,

T)

turns

OFF

so

that

Q9~Q12

turn

OFF.

Q13,

14

2SC1740S

(Q,

R)

Recording

EQ

chrome

switch

When

a

chrome

tape

is

loaded,

the

10

(C)

of

extension

IC

1C13

becomes

“L”

and

2SC945

(A)

(Q,

P)

Q32

thereby

turns

ON

so

that

Q13

and

Q14

turn

ON.

Q15,

16

2SC1740S

(Q,

R)

Recording

EQ

metal

switch

2SC945

(A)

(Q,

P)

Q17,

18

2S8C17408S

(Q,

R)

Recording

EQ

peaking

selection

When

a

normal

tape

is

loaded,

the

11

(N)

of

extension

IC

IC13

becomes

“L"

and

2SC945

(A)

(Q,

P}

switch

Q31

thereby

turns

ON,

while

when

a

chrome

tape

is

loaded

Q32

turns

ON

in

the

same

process,

so

that,

either

way,

Q17

and

Q18

turn

ON

through

a

diode

matrix

D5

Q19

2SC1740S

(Q,

R)

Test

signal

mute

switch

For

AUTO

BIAS

operation,

the

5

(O/L)

of

extension

IC

1C13

becomes

"L”

and

Q19

2SC945

(A)

(Q,

P)

thereby

turns

OFF

to

pass

the

test

signal.

i

Except

for

AUTO

BIAS

operation,

Q19

is

ON.

Q20,

21

2SC1740S

(Q,

R)

Test

signal

filter

cutoff

frequency

For

AUTO

BIAS

operation,

selects

between

cutoff

frequencies

in

synchronization

with

2SC945

(A)

(Q,

P)

selection

switch

the

test

signal

frequency.

Fraguenc

400/10k

IC13

Fenuency

6

Except

for

AUTO

BIAS

operation,

Q20

and

Q21

are

OFF.

2SD863

(E,

F)

Erase

head

excitation

For

recording,

a

push-pull

oscillation

is

made

at

f=210

kHz

to

flow

the

erase

current

and

the

bias

current.

28C3246

BIAS+B

ON/OFF

switch

For

recording,

the

25

(BIAS)

of

microprocessor

|C12

becomes

“H”

and

Q30

thereby

;

turns

OFF

and

Q25

OFF

so

that

Q24

turns

ON

to

apply

+B

to

the

erase

oscillator

and

the

HX

excitation

coil.

025

|

ass

|

az24

OFF

|

OFF

ON

OFF

o

DTC124ES

Bias

ON/OFF

switch

For

recording,

Q25

turns

OFF

to

let

the

bias

ON.

aa

Name

DTA124ES

ne

RISER

Orne

TELS

MRO

aE

OREO

SS

SRST

TY

DTC

~KX-4520

CIRCUIT

DESCRIPTION

Use/function

Operation/condition/compatibility

Bias

step

driver

For

AUTO

BIAS

operation,

the

bias

current

is

varied

to

correct

the

tape

recording/playback

frequency

response.

(MAX.

16

steps)

Due

to

the

“H’/"L”

action

of

the

pins

1~4

(B1~B4)}

of

extension

IC

1C13,

transistors

Q26~Q29

turn

OFF/ON

so

that

the

transistor

of

IC8

turn

OFF/ON

to

vary

the

bias

current.

Extension

IC

(1C13)

Driver

ATT

switch

(IC8)

B4

(P4):

H/L

Q29:

OF/ON

INVERTER

1:

OFF/ON

B3

(P3):

H/L

Q28:

OF/ON

INVERTER

2:

OFF/ON

B2

(P2):

H/L

Q27:

OF/ON

"INVERTER

3:

OFF/ON

Bi

(P1):

H/L

Q26:

OF/ON

INVERTER

4:

OFF/ON

Initial

value

B4—"L"

Q29=ON

INVERTER

1=ON

B1~3=—="H"

Q26~28-OFF

INVERTER

2~4—OFF

oe

Q30

2SA733

(A)

(Q,

P)

Bias

ON/OFF

driver

2SA933S

(Q,

R)

Q31~33

034,

36

DTA124ES

Refer

to

the

pertinent

description

under

Q24.

Tape

selector

driver

DOLBY

NR

mode

selection

switch

Tape/source

selection

control

DTC124ES

Extension

IC

(IC12)

N

(pin

11)

|

C

(pin

10)

|

M

(pin

9)

Q31

Normal

H H

ON

Chrome

L

H

OFF

Metal

H

OFF

Due

to

the

“H"/"L"

action

of

pins

11

(N),

10

(C)

or

9

(M)

of

extension

IC

IC13

depending

upon

the

tape

loaded

on

the

deck,

the

tape

selector

driver's

Q31,

Q32

or

Q33

turns

ON

for

a

normal,

chrome

or

metal

tape,

respectively.

To

provide

the

DOLBY

noise

reduction

mode

selected

by

the

DOLBY

NR

ON/OFF

and

B/C

switches

(S1-a/3,

b/3:

X25-3770

system),

due

to

the

“H"/*L"

action

of

the

8

(DOLBY

ON/OFF)

of

extension

IC

IC13,

Q36

and

037

turn

OFF/ON,

while

due

to

the

“H"/“L"

action

of

the

7

(DOLBY

C/B),

Q34

and

Q35

turn

OFF/ON.

Thus,

the

DOLBY

noise

reduction

mode

is

determined

by

"H’/“L”

combination.

poisy

|

powey

on/OFF

|

ooieye7S

[ase

|

axe

[ae

[oar

OFF

L

OFF

|

OFF

|

ON

|

ON

B

H

L

OFF

|

OFF

|

OFF

|

OFF

c

H

ON

|

ON

|

OFF

|

OFF

Due

to

the

“L"/"H"

action

of

the

9

(T/S)

of

extension

IC

IC13,

Q38

and

Q39

turn

ON/OFF

to

apply

an

“H’/"L”

signal

to

the

control

of

monitor

selection

analog

switch

IC3.

MODE

T/s

038 039

IC3

Pins.12

and

13

of

IC3

TAPE

L

ON

BV

sv

SOURCE

H

OFF

-8V

BV

Q40

25C1740S

(Q,

R)

Meter

amplifier

gain

selection

switch

{

For

AUTO

BIAS

operation,

Q40

turns

ON

to

raise

the

meter

amplifier

R-ch

gain.

The

AUTO

BIAS

test

signal

(—20

VU)

is

thus

amplified

for

easier

microprocessor

level

discrimination.

Except

for

AUTO

BIAS

operation,

Q40

is

OFF.

2SC945

(A)

(Q,

P)

Q41

DAT124ES

Test

signal/line

signal

selection

driver

For

AUTO

BIAS

operation,

the

5

(O/L)

of

extension

IC

IC13

becomes

“L”

so

that

Q41

goes

ON

to

turn

040

and

042

ON.

on

|

aa

|

aso

|

aaz

AUTO

BIAS

L

ON

OTHER

H

OFF

ye?

ee

a

Q43

DTC124ES

Test

signal

selection

switch

To

pass

the

test

signal

in

AUTO

BIAS

operation

for

recording

DOLBY

IC

IC4,

Q42

turns

ON

to

select

an

input

line.

2SA733

(A)

(Q,

P)

2SA933

(Q,

R)

Recording

mute

drive

Controlled

by

the

output

of

the

11

(RM)

of

microprocessor

IC12.

Also

refer

to

the

pertinent

description

under

Q9~Q12.

aaa

————|-284733(A)

(Q,

P)

2SA933

(Q,

R)

Line

mute

drive

Controlled

by

the

output

of

the

10

(LM)

of

microprocessor

IC12.

Also

refer

to

the

pertinent

description

under

Q3

and

Q4.

KX-4520

2SC1740S

(Q,

R)

2SC945

(A)

(Q,

P)

CIRCUIT

DESCRIPTION

Use/function

Operation/condition/compatibility

At

POWER

ON/OFF,

apply

“L”

to

the

27

(RESET)

of

microprocessor

1C12

and

the

16

(RST)

of

extension

IC

IC13

to

reset.

Microprocessor

reset

Right

after

POWER

ON

POWER

OFF

ON

OFF

after

a

fixed

}

OFF

after

a

fixed

time

of

ON

time

of

ON

Right

after

2SC17408

(Q,

R)

2SC945

(A)

(Q,

P)

Reel

motor

applied

voltage

selection}

Due

to

the

“H’/“L”

action

of

the

pins

14

(RPC1)

and

15

(RPC2)

of

microprocessor

switch

1C12,

Q47

and

Q48

turn

ON/OFF

to

vary

the

voltage

applied

to

the

4

of

reel

motor

driver

JC

1C15

in

such

a

manner

that

it

becomes

8

V

for

assist,

6

V

for

fast

forwarding

or

rewinding

or

3.5

V

for

play

or

recording.

Reel

motor

mode

|

RPC1

RPC2

L

H

L

2SC3246

Capstan

motor

ON/OFF

switch

For

recording

or

play,

the

13

(CPM)

of

microprocessor

1C12

becomes

“H”

so

that

Q49

turns

ON

to

rotate

the

capstan

motor.

2SC3246

2SC1740S

(Q,

R)

2SC945

(A)

(Q,

P)

2SC1740S

(Q,

R)

2SC945

(A)

(Q,

P)

2SA933S

(Q,

R)

2SA733

(A)

(Q,

P)

2SB941

(Q,

P)

DTC124ES

REC

+

PLAY

H

ON

OTHER

L

OFF

Due

to

the

“H"/“L”

action

of

the

12

(SOL)

of

microprocessor

IC12,

Q50

turns

ON/OFF

to

realize

each

operation

mode

of

the

mechanism.

Solenoid

ON/OFF

switch

Reel

pulse

detector

For

supply

reel

pulse.

Receiving

the

output

“H"/“L”

pulse

of

the

photoreflector,

Q51

turn

ON/OFF.

Reel

pulse

detector

For

takeup

reel

pulse.

Receiving

the

output

“H"/*L”

pulse

of

the

photoreflector,

052

turns

ON/OFF.

Due

to

the

ON/OFF

operation

of

the

HALF,

REC

INHIBIT,

CHROME

or

METAL

switch

used

with

the

mechanism,

Q53~Q56

turns

ON/OFF

correspondingly.

Microprocessor

1C12

thus

discriminates

the

cassette

tape.

Q53

for

HALF,

054

for

REC

INHIBIT,

Q55

for

CHROME,

O56

for

METAL.

FL

display

circuit

regulated

power

supply.

Key

matrix

switches

—30

V

power

supply

HX

siow

start

switch

For

the

switch

logic

to

slowly

turn

up

the

bias

oscillation

waveform

for

recording,

refer

to

the

pertinent

description

under

024.

M5220P

Playback

EQ

amplifier

CXA1330S

Playback

DOLBY

noise

reduction

MB84066BM

MPD4066BC

Monitor

selection

switch

Selection

between

tape

monitor

and

source

monitor

CXA1330S

Recording

DOLBY

noise

reduction

M5218P

NJM4558D

‘Recording

amplifier

MPC1297CA

HX

PRO

IC

TD62554S

Normal/chrome

tape

bias

setting

Chrome

INVERTER

1:

ON

INVERTER

3:

ON

Normal

INVERTER

2:

ON

INVERTER

4:

ON

Leh

Rech

TD62554S

Bias

step

Refer

to

the

pertinent

description

under

Q26~Q29.

M5218L

M5218P

NJM4558D

Headphone

amplifier

Meter

amplifier

Refer

to

the

pertinent

description

under

Q40.

BA6138

Meter

drive

amplifier

1/2

power

compressor

amplifier

aa

“ag

Sagi

omponent(s)

1C12

Name

M50941-317SP

CXD1067P

CIRCUIT

Use/function

KX-4520

DESCRIPTION

Operation/condition/compatibility

Microprocessor

Extension

IC

M519517ASL

PST529D

Reset

IC

Refer

to

a

separate

section.

Refer

to

a

separate

section.

BA6229

Ree!

motor

drive

IC

AN7908F

MPC7908HF

The

6

of

IC15

is

made

“L"

to

drive

the

reel

motor

in

the

forward

direction,

whereas

the

5

of

IC15

is

made

"L”

to

drive

it

in

the

reverse

direction.

Also

refer

to

the

pertinent

description

under

Q47

and

048.

Signal

system

regulated

power

supply

AN7808F

MPC7898HF

MPC7812H

MPC781

2HF

=

V

power

supply

+8

V

power

supply

Signal

system

regulated

power

supply

+12

V

power

supply

Mechanism

and

microprocessor

system

regulated

power

supply

MPC7805H

MPC7805HF

NJM78L05A

MPC78LO5J

+5

V

power

supply

Microprocessor

system

regulated

power

supply

+5

V

power

supply

Display

unit

(X25-3770-00)

ne

Q2

Q3

Name

2SC17408

(Q,

R)

2SC945

(A)

(Q,

P)

2SC1740S

(Q,

R)

2SC945

(A)

(Q,

P}

2SC17408

(Q,

R)

2SC945

(A)

(Q,

P)

2SC17408S

(Q,

R)

2SC945

(A)

(Q,

P)

MPD7564CS-113

Current

buffer

for

1GA

Current

buffer

for

1GB

Current

buffer

for

2GB

Remote

contro!

reception

microprocessor

Tape

selector

driver

regulated

power

supply

Operation/condition/compatibility

Compatible

if

Vebg

is

more

than

50

V

and

lemax.

is

more

than

100

mA.

Compatible

if

Vepo

is

more

than

50

V

and

Icmax-

More

than

100

mA.

Compatible

if

Voy

is

more

than

50

V

and

!omax-

More

than

100

mA.

At

POWER

ON,

the

port

q

of

IC12

(X26-1240-00

A/21)

becomes

“H”

from

“L"

and

the

output

of

Q4

becomes

“L”

from

“H”

to

reset

IC1.

KX-4520

Key

name

CIRCUIT

DESCRIPTION

Description

PLAY

KEY

>

(I<)

Conditions

of

nonacceptance

When

pressed

singly,

the

play

mode

is

engaged.

@

Play

stops

at

the

tape

end.

When

pressed

simultaneously

with

the

REW

key,

the

tape

is

rewound,

then

played.

®

Concurrently

with

the

pressure,

the

tape

is

rewound.

@

Play

starts

at

the

tape

head.

@

During

CCRS

@

During

AUTO

BIAS

operation

@

Without

cassette

half

Display

>

3.45

Linear

counter

Ad

Flickers

>»

Lights

Linear

counter

STOP

KEY

L

When

pressed,

all

operation

stops.

@

When

pressed

during

CCRS,

the

CD

player

also

stops.

When

pressed

simultaneously

with

the

FF

key,

the

tape

zero-stops

in

the

FF

direction.

®

Concurrently

with

the

pressure,

the

tape

is

fast

forwarded

and

when

the

linear

counter

display

reaches

“0.00”,

stops.

When

pressed

simultaneously

with

the

REW

key,

the

tape

zero-stops

in

the

REW

direction.

©

Concurrently

with

the

pressure,

the

tape

is

rewound

and

when

the

linear

counter

display

reaches

"0.00",

stops.

EJECT

SW

When

pressed,

all

operation

stops

and

the

cassette

half

is

ejected.

@

When

pressed

during

CCRS,

the

CD

player

also

stops.

els

@

During

CCRS

@

During

AUTO

BIAS

operation

@

Without

cassette

half

®

During

play

®

During

recording

Linear

counter

>>

Linear

counter

dd

Linear

counter

Linear

counter

The

tape

selector

display

goes

out.

PAUSE

KEY

REC

KEY

TAPE/SOURCE

KEY

1.

When

pressed

during

play,

the

play

pause

mode

is

engaged.

When

pressed

during

recording,

the

recording

pause

mode

is

engaged.

2.

When

pressed

simultaneously

with

the

REC

key,

the

recording

pause

mode

is

engaged.

1.

When

pressed

during

stop

or

recording

pause,

the

recording

mode

is

entered.

2.

When

pressed

simuitaneously

with

the

PAUSE

key,

the

recording

pause

mode

is

enyaged.

3.

When

pressed

during

recording,

ARM

(auto

recording

mute)

is

performed.

@

The

recording

mute

mode

is

engaged.

4

sec

after,

the

recording

pause

mode

is

entered.

1.

Selection

is

made

between

tape

and

source.

@

At

power

ON,

the

tape

is

engaged.

@

For

play

or

recording,

the

tape

is

automatically

engaged.

@

For

recording

pause,

the

source

is

automatically

engaged.

————__—__—__

®@

During

CCRS

@

During

AUTO

BIAS

operation

@

Without

cassette

half

@

During

CCRS

@

During

AUTO

BIAS

operation

@

Without

cassette

half

@

Without

recording

tab

@

During

CCRS

@

During

AUTO

BIAS

operation

®

Without

cassette

half

@

Without

recording

tab

PLAY

PAUSE

b>

ff]

REC

PAUSE

p>

J]

@

Linear

counter

REC

>

©

>ile

>

@

Lights

Flickers

REC

PAUSE

Linear

counter

@

During

CCRS

@

During

AUTO

BIAS

operation

+————

For

tape

TAPE

SOURCE

For

source

COUNTER

RESET

KEY

AUTO

BIAS

KEY

1.

The

linear

counter

is

reset

to

“0.00”.

@

While

pressed,

“0.00”

is

held.

@

When

pressed

during

zero-stop,

the

stop

mode

is

engaged.

1,

The

AUTO

BIAS

operation

is

performed.

@

The

tape

is

fast

forwarded

(FF)

for

1

second.

@

After

that,

up'from

the

deepest

bias

step,

400

Hz

and

10

kHz

are

recorded

alternately

(300

msec

each)

and

level-checked

repeatedly

(300

msec

each)

up

to

the

fullest

range.

In

this

process,

when

400

Hz

level

<

10

kHz

level,

the

operation

hereat

stops

and

the

tape

is

rewound

to

the

start

point.

@

When

pressed

when

the

auto

bias

setting

is

already

made,

the

setting

is

canceled.

(However,

the

setting

cannot

be

canceled

during

recording.)

©

For

between

tape

and

source,

the

tape

is

automatically

selected.

adams

CCRS

®

During

AUTO

BIAS

operation

@

Except

during

stop

@

Without

cassette

half

@

Without

recording

inhibit

tab

During

setting

AUTO

BIAS

Flickers

Setting

already

made

AUTO

BIAS

Lights

CCRS

KEY

+

10

The

deck

enters

the

CCRS

operation

together

with

the

CD

player.

©

For

operation,

refer

to

a

separate

paper.

an

@

During

CCRS

operation

®

During

AUTO

BIAS

operation

@

Without

cassette

half

®@

Except

during

stop

@

Without

recording

inhibit

tab

Kenwood KX-4520 User manual

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