Panasonic Cq-873ee User manual

Service

Manual

AUTO

PRODUCTS

CQ-873EE/EG

ata

ia

SPECIFICATIONS*

Power

Supply:

Current

Consumption:

Max.

Power

Output:

Power

Output:

Speaker

Impedance:

Tone

Controls:

Loudness

Control:

Battery

Back

Up

Current

Consumption:

Car

Stereo

Reproduction

System:

Tape

Speed:

Wow/Flutter:

Signal

to

Noise

Ratio:

FM

Stereo

Radio

Frequency

Range:

Intermediate

Frequency:

Maximum

Sensitivity:

MW

Radio

Frequency

Range:

Intermediate

Frequency:

.

Maximum

Sensitivity:

DC

12V

(11

~

16V)

Test

Voltage

14.4

V

Negative

Ground

Less

than

1.8A

(at

0.5W)

2x

20

W

(at

4Q)

2

x

13W

(DIN

45

324)

4~8Q

Bass;

+8

dB

at

100

Hz

Treble;

+8

dB

at

10

kHz

+8

dB

at

100

Hz

+8

dB

at

10

kHz

Less

than

2

mA

4-Track,

2-Program

Stereo

4.76

cm/sec.

Less

than

0.12%

(WRMS)

52

dB

(Dolby

NR

out)

62

dB

(Dolby

NR

in)

87.5

~

108

MHz

10.7

MHz

Less

than

4

dB/uV

(S/N

10

dB)

531

~

1,602

kHz

450

kHz

Less

than

26

dB/uV

(0.5

W)

Panasonic

ORDER-NO.

APD-8308-644

LW

Radio

Frequency

Range:

Intermediate

Frequency:

450

kHz

Maximum

Sensitivity:

Clock

Accuracy:

Dimensions**

:

Weight**:

153

~

281

kHz

Less

than

35

dB/uV

(0.5

W)

+30

sec./month

178(W)

x

140(D)

x

52(H)

mm.

1.7

kg

FEATURES

Electronic

tuning

FM

Stereo/MW/LW

radio

with

auto-

reverse

cassette

player.

New

DIN

full

frontal

design.

PLL

quarts

synthesizer

electronic

tuning.

Auto-seek,

18-station

preset

tuning

(6

FM,

6

MW,

6LW).

Adaptive

FM

front

end.

EIA

noise

suppressor.

24-hour

quartz

clock/frequency

digital

display.

Loudness

control

switch.

Fader

control.

ATC

(Automatic

Tone

Control)

ASC

(Automatic

Separation

Control)

*

Specifications

subject

to

change

without

notice.

*

Weight

and

Dimensions

shown

are

approximate.

***

C_120

tape

is

not

recommended

to

use.

Ia

~=—OS

CONTENTS

FUSE

REPLACEMENT

Page

Be

sure

to

use

a

fuse

of

specified

rating

(5

A,

1

A),

when

FUSE

REPLACEMENT

...............00-0

ee

1

replacing

a

blown

fuse.

DIMENSIONS

AND

LOCATION

OF

CONTROLS

....

1

Fuses

rated

at

higher

capacity,

use

of

any

substitute,

or

INSPECTION

OF

ELECTRONIC

TUNING

FUNCTION

2

connection

without

a

fuse

may

result

in

a

fire

hazard

of

INSTALLATION

INSTRUCTIONS

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

3,4

damage

to

the

unit.

DISASSEMBLY

INSTRUCTIONS

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

5

if

the

replacement

fuse

fails,

contact

your

nearest

shop.

See

5

CAUTION:

|

RADIO

BLOCK

ia

;

7

1.

Connect

the

BATTERY

LEAD

(yellow)

direct

to

the

WIRING

DIAGRAM:

aa

Otherwise,

time

and

memory

settings

can

not

RADIO

BLOCK

«1.0...

e

seer

eee

tenes

8

2.

If

battery

connection

is

disconnected

(such

as

during

ae

‘TAPE

BLOCK

GLLittiit

it

isinirtinsses

9

batter

|

t

harging

the

-

batter

——__

WAVEFORMS

OF

MICROCOMPUTER™

=

EOS

==

lactio

=

OPERATION

OF

MICROCOMPUTER

...........

12

fade

out.

To

reset,

follow

on

the

EGD:ASSIY

o.4.s

beet

aw

ate’

)

Boe

eee

Ee

ees

13

cs

:

operating

instructions,

SERVCING

OF

MODULE

............-..-005

14

ALIGNMENT

POINTS

............-.--0000-

15

ALIGNMENT

INSTRUCTIONS

..........-

16

to

19

eet

Sees

OPERATION

OF

AUTO-REVERSE

DECK......

20,

21

:

SERVICING

OF

CASSETTE

DECK...........

22,

23

GS)

PUSH

EXPLODED

VIEW

OF

AUTO-REVERSE

DECK:

;

~

UPPER

PORTION.

........-00ceceueeeee

24

bad

iene

SS

LOWER

PORTION

.........

cc

ce

eee

eeeee

25

“CR

Die

Ae

aig

Ah

Ren

el

OO

tall

dc

igecthce

a

26

/.

ROY

Pern

Ree

rena

ree

rer

re

27

ORDER

NO.

XBB1C10NR1

uti

Maen

me

eae

aad

oienbar

onde

28

cee

ees

PD

eee

ner

cn

tums

txt

otek

Seas

anee

set

29

EXPLODED

VIEW

(UNIT)

..........-----055

30

Push

in

and

rotate

counterclockwise

to

disconnect,

REPLACEMENT

PARTS

LIST

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

31

to

44

DIMENSIONS

AND

LOCATION

OF

CONTROLS

PROGRAM

SELECTOR

TREBLE

CONTROL

BASS

CONTROL

FADER

CONTROL

BALANCE

CONTROL

VOLUME

CONTROL

and

SEEK

TUNING

(Push)

with

POWER

SWITCH

MANUAL

TUNING

DOWN

(Time-Hour

Adjust)

LOUDNESS

SWITCH

Bee

MONAURAL/STEREO

SELECTOR

SWITCH

MANUAL

TUNING

UP

(Time-Minute

Adjust)

PRESET

STATION

SELECTOR,

1

to

6

with

LEDs

MEMORY

BUTTON

REWIND

BUTTON

FAST

FORWARD

BUTTON

EJECT

BUTTON

FM

BUTTON

LOCAL/DX

SELECTOR

SWITCH

MW

BUTTON

METAL

ON/OFF

SWITCH

LW

BUTTON

DOLBY

NR

SWITCH

DISPLAY

BUTTON

INSPECTION

OF

ELECTRONIC

TUNING

FUNCTIONS

1,

POWER

SWITCH

&

CLOCK

FUNCTION

3.

MANUAL

TUNE

FUNCTION

CONTROL

REMARKS

Frequency

counts

up

by

Turn

power

SW

of

Novindication

Depress

TUNE-U_

|

astep,

test

equipment

on

j j

quip

:

button

in

radio

LW

mode:

1

kHz

reception.

MW

mode:

9

kHz

Ilumination

and

LCD

display

FM

mode:

50

kHz

light

up

5

sec.

after

power

indicator

lit,

Turn

VOL:-POWER

knob

clockwise.

Frequency

counts

down

by

Depress

TUNE-D

a

step,

; :

;

button

in

radio

LW

mode:

1

kHz

Display

is

changed

from

radio

MW

mode:

9

kHz

-

Depress:

D-button

caeen

Ee

frequency:

-tO:.

time,-

-OF

=i

ME@.[

=

DS

Reo

oe

ee

EM:modez<502kHz===

to

radio

frequency.

Keep

depressing

Continuously

frequency

i

Memory

colon

lights

up.

Keep

pushing

¥

oto

counts

up

or

down,

button

and

depress

|

Minute

counts

up

by

a

step.

TUNE-D

button.

TIME-M

button.

00:00,

00:01--00:59,

01:00

Keep

pushing

M

Memory

colon

lights

up.

button

and

depress

|

Hour

counts

up

by

a

step.

TIME-H

button.

00:00,

01:00-—23:00,

00:00

L

REMARKS

Depress

M

button

when

station

signal

is

received.

Memory

colon

lights

up.

(for

5

sec.)

Depress

a

preset

Memory

colon

lights

up.

Continuously

frequenc

eee

,

uses

¥

butto

of

1

to

6.

Preset

indicator

lights

up.

Depress

SEEK

counts

up,

Seek

stops

when

signal

is

received,

Change

frequency

fs

:

and

check

items

Local

indicator

lights

up.

1

&

2

for

other

Depress

LOCAL.

Continuously

frequency

preset

buttons,

button

and

depress

|

counts

up.

SEEK

button.

Seek

jstops

when

signal

is

received,

Check

items

1

to

3

for

each

LW,

MW

and

FM

bands.

Disconnect

antenna

and

depress

SEEK

|

Seek

does

not

stop.

button.

Check

6-preset

stationsare

received

on

LW,

MW

and

FM

bands.

Sound

silences

at

depressing

preset

button

due

to

muting

circuit.

L

i

——unscrewing

the

four

_(4)-screws

(two

foreach

side)

CQ-873EE/EG

FER

ALLEGE

NG

ARR

INSTALLATION

INSTRUCTIONS

UNIT

IN-DASH

INSTALLATION

Installation

Opening

In-dash

installation

of

the

unit

can

be

possibly

done

if

the

car’s

dashboard

has

an

opening

for

this

unit

as

shown

in

Fig.

1.

The

car’s

dashboard

should

have

a

thickness

of

not

more

than

5.5

mm

in

order

to

make

the

installation

of

the

unit

be

possible.

Installation

Procedure

1.

Fix

the

two

(2)

Front

Brackets

onto

the

left

and

right

sides

of

the

unit,

as

shown

in

Fig.

2.

Loosen.

the

Back-Up

Metal

on

the

Front

Bracket

by

TO

SECURE

THE

REAR

OF

THE

UNIT

Using

the

Rear

Supporting

Strap

(See

Fig.

4)

Fix

one

end

of

the

Supporting

Strap

to

the

rear

of

the

unit,

and

the-other

end

to

the

Fire

Wall

of

Car.

Using

the

Rubber

Cushion

(See

Fig.

5)

if

there

is

an

existing

Rear

Support

Bracket

on

the

Fire

Wall

of

Car,

simply

place

the

Rubber

Cushion

over

the

pro-

truding

bolt

on

the

rear

of

the

unit.

Then

mount

the

rear

of

the

unit

to

the

existing

Rear

Support

Bracket.

3.

Before

definitely

mounting

the

unit

to

the

car’s

dash-

board,

check

whether

the

rear

of

the

unit

is

properly

fixed

to

the

Fire

Wall

of

Car.

Refer

to

any

one

of

these

figures,

Fig.

4

or

5

that best

suits

stable

instal-

lation

of

this

unit.

Also

check

the

electrical

connections.

Mount

the

unit

to

the

car’s

dashboard

as

shown

in

Fig.

2.

4.

As

shown

in

Fig.

3,

the

upper

and

lower

ends

of

the

Back-Up

Metals

(both

sides)

should

be

properly

braced

onto

the

back

of

the

car’s

dashboard

by

tightening

the

screws.

In

other

words,

slide

the

Back-Up

Metals

up-

wards

and/or

downwards

while

tightening

the

screws.

5.

Fix

the

Trim

Plate

to

the

unit,

as

shown

in

Fig.

3.

Front

Bracket

x

2

YEFG01839A

For

installation

the

dashboard

thickness

should

be

up

to

5.5

mm.

Front

Bracket

Screw

w/Washer

x

2

YEJV12041

Front

Bracket

x

2

YEFG01839A

Dashboard

Trim

Plate

YEFC05295

CQ-873EE/EG

—

CQ-873EE/EG

Washer,

Plain

DISASSEMBLY

INSTRUCTIONS

XWG5FX

Washer,

Spring

CASSETTE

DECK

REMOVAL

KEYBOARD

BLOCK

REMOVAL

XWASBF

X

i

R

Dashboard

‘

cea

misting

on

the

cae)

1)

Remove

the

knobs

and

the

escutcheon

ass’y.

1)

Remove

the

2

screws

|

2)

Unsolder

the

terminals.

Nut,

Hexagon

(existing

on

the

car)

XNGBAFXS

Bolt,

Hexagon

XV

G5C25FXS

ake

/

io

2

Washer,

Toothed

XWC5CF

X

G20

B@s@eneop

_—————

f

Supporting

Strap

Sty

ee

:

ESAS

‘

.

Escutcheon

Ass’y

Washer,

Plain

XNG5SAFXS

:

XWG5F

X

;

2)

Remove

the

upper

cover

by

the

3

screws.

3)

Remove

the

3

screws.

Washer,

Spring

XWADSBFX

-

|

REAR

VIEW

AND

CONNECTING

DIAGRAM

3)

Remove

the

4

screws

mounting

the

cassette

deck.

4)

Remove

the

keyboard

P.

C.

board.

4)

Lifting

up

the

deck

and

disconnect

CJ220.

Tiel

sy

white

Front

{

fol

$e

}

Foot

Switch

}

Speakers

mp

7

a

j

Cassette

Deck

black

,

Beek

{

~~

(Be

SS

Ronee

i

Speakers

cin

EC

SSS

=

>

DC

14.

—————_=_—_—=

:

black

POCA

CLOW

pees

speakers

{

Se,

y

en

<F5]

eas

Supply,

only

(ln

ee

¢

{

Power

Supply,

Motor

ANT

SCHEMATIC

DIAGRAM

»

MODELS

CQ-873EE/EG(TAPE

BLOCK)

PROGURAM

Aug.,

1983

POWER

CONTROL

Q220

2SB643

R221

680

SWITCHING

Q221

2SD636

22!

224

301

302

223

202

201

221

SWITCHING

Q222

2SD636

TAPE

EQ

AMP

1C201

YEAMLA3161

Ic

201

D221,

222

YEAD10E2

C303

0.027

R220

220

SOLENOID

CONTROL

Q223

2SD966

MOTOR

CONTROL

sw203

TAPE/RADIO

SELECTOR

SWITCH

SWITCHING

(METAL)

Q201,

301

2SD636

R313

-\W\-

R305

1.5K

af

7H

t

He

C305

0.047

=

= =

CN220

toh

Rech

DOLBY

NR

R213

1C202

YEAMHA12047

12K

ane

to

-—

p202

C213

A

R209

3.3K

;

i

R306

R206

33K

C205

0.047

R205

1.5K

Q224

2SA684

Q225,

226

2SD636

D202,

302

MA165

10

V220

sb

C313

0.033

R

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4.6V

4.4V

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301

TAPE

RUNNING

INDICATOR

Aug.,

1983

@)

TAPE

(PB3)

CQ-873EE/EG

@)

MW

(PA2)

AVN

inv

Y

yA

|

|_|

LW

(PA3)

EO1

(Not

Used)

ALVA

eal

@)

A+B

(PB1)

46:5

@))

SEGh

(PD3)

MUTE-2

(PB2)

:

D5

(Not

Used)

—11-—

@2

ALARM

(VDP)

YEAM1710G022

Function

State

Display

Data

Signal

Output

Muting

Output,

Active

Low

Crystal

OSC,

4.5

MHz

Power

Supply,

+5V

+0.5V

ONO!

AW)

N=

Phase

Detector

Output

Ground

Phase

Detector

Output

CE

Chip

Enable

Input

SD

Station

Detector

Input

Not

Used

FM

Programmable

Counter

Input

Part

Function

=

Not

Used

FM(PA1)

MW(PA2)

Band

Mode

Output,

Active

High

LW(PA3)

SEGh(PD3)

Static

Display

Clock

Signal

Output

ALARM(VDP)

|

Static

Display

Clock

Signal

Output

ALARM(VDP)

|

ARI

Alarm

Output

Power

Supply,

+5V

+0.5V

Key

Return

Signal

Source

Not

Used

PSC

Pre-Scaler

Control

INT

Break

Out

AM

Programmable

Counter

Input

BK(PC2)

DK(PC3)

BK

Signal

(A

to

F)

Input

DK

Signal

(125Hz)

Input

Not

Used

C(PBO)

ARI

Control

Output,

Active

Low

2

A+B(PB1)

ARI

Control

Output,

Active

High

5

6

MUTE-2(PB2)

TAPE

(PB3)

Muting

Output,

Active

High

Tape

Mode

Output,

Active

High

ARI(PAO)

ARt

Mode

Output,

Active

High

i6

xX

1016

ROM

DEC

fig

Key

Return

Signal

Source

Key

Matrix

Input

za

Not

Used

Key

Matrix

Input

Not

Used

-—12-

Not

Used

Static

Display

DK

Signal

Output

Static

Display

Load

Signal

Output

|

—

Top

View

—

=~

=

a

rs}

Br)

9

Latch

Input

Data

LCD

DOT

PATTERN

~

8

$

o>

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yuo

|o4

LCD

ASSEMBLY

Shift

Register

(32

bits)

DOT/7

SEG

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reset

Station

Decoder

BERREAE

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D7

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D4

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’

SEGMENT

DECODER

PATTERN

YEAMUPD6321G

LCD

SEGMENT

CO-873EE/EG

|

SERVICING

OF

MODULE

NOTES

FOR

REMOVAL:

2)

Do

not

stress

to

the

flexible

portion

when

inserting.

1)

Completely

unsolder

the

junction

between

the

module

and

the

PCB,

and

then

depress

it

from

the

lower

side.

2)

Do

not

remove

it

by

the

plier

and

hard

wares.

3)

Do

not

rub

the

tip

of

the

soldering

iron

on

the

terminal

of

module

when

unsoldering.

Never

by

plier

GOOD

3)

Do

not

misfit

or

open.

Completely

unsolder

t

Slightly

depress

NOTES

FOR

RE-INSTALLATION:

1)

Insert

the

module

into

the

PCB

to

meet

direction.

©

GOOD

4)

Do

not

stab

or

bite

the

module

by

the

screwdriver,

the

plier,

etc.

|

5)

The

module

must

be

no

tilt.

90°

GOOD

CHIP

ICs

AND

CHIP

DIODES

YEANC1623,

YEANC1009A

MA151K

Cc

Anode

Base

|

Cathod

Collector

B

!

Emitter

|

:

E

Top

View

;

\

YEANB624

,

YEANA812

Base

Collector

B

Emitter

Top

View

aa

ALIGNMENT

POINTS

2)

@

13)

@

oO 4)

@

oO

C121

VR502

L104

VR501

L103

C127

C133

1FT101

L106

(281

kHz)

|

(no

signal)

(531

kHz)

|

(89.9

MHz)

|

(153kHz)

|

(1602

kHz)

||

(263

kHz)

(900

kHz)

(164

kHz)

10)

L101

(164

kHz)

12]

15)

L105

TPS

Ly

(603

kHz)

@

O-

TP5

dd,

C115

(263

kHz)

7)

1FT102

(900

kHz)

@

L102

(603

kHz)

®

S

C131

©

TP2

(1404

kHz)

QO.

IFT150

cid,

OTPS

(95.1

MHz)

:

\o

@

ae

C54

OTPS

(107.9

MHz)

®

<

C112

>

O-

(1404

kHz)

Q

i

@

C61

(107.9

MHz)

1FT801

98.1

MHz

®

@

®

114)

(3)

16)

®

6]

8

VR801

VR151

VR152

L51

IFT51

VR150

L53

C62

L54

(98.1

MHz)

(88.1

MHz)

(95.1

MHz)

(98.1

MHz)

(88.1

MHz)

| |

(108.0

MHz)

(87.5

MHz)

(999

kHz)

|

(89.9

MHz)

|.

{*1:

Shorting

for

TP2

and

TP5]

[DOLBY

NR

PCB]

@

TP2

@

TPS

10n16V

220kQ

TP2

@yTO

TP5

TPR

TPL

P.

C.

Board

Chassis

P.C.

Board

Chassis

—15—

CQ-873EE/EG

ALIGNMENT

INSTRUCTIONS

@

Power

supply

voltage:

DC

14.4

V

@

Volume

control:

Set

for

0.5

W

output

@

Output

impedance:

4Q

@

Loudness

switch:.

OFF

@

Output

power:

0.5

W

®@

Bass

Control:

Center

@

Balance

control:

Center

@

Treble

control:

Center

@

DX/LOCAL

Switch:

DX

1.

VARACTOR

VOLTAGE

ALIGNMENT

Alignment

Band

VTVM

:

Item

Selector

Connection

Display

Remarks

153

kHz

‘«

Adjust

for

1.2

V

LW

VARACTOR

;

*

Adjust

for

5.0

V

VOLTAGE

281

kHz

*

Repeat

steps

2

&

3

times,

:

and

finish

at

C121.

531

kHz

|.

*

Adjust

for

1.2

V

Meroe

J1(VAR)—Ground

*

Adjust

for

9.0

V

1602

kHz

C127

*

Repeat

steps

2

&

3

times,

finish

at

C127.

.

*

Adjust

for

1.2

V

FM

VARACTOR

:

*

Adjust

for

9.0

V.

VOLTAGE

:

+

Repeat

steps

2

&

3

times,

and

finish

at

C62.

DC

Power

Supply

2.

LW/MW

I-F

ALIGNMENT

Signal

Input

VTVM

;

eye

Lilien

often

|

Bey

|

Adin

|

Rete

|

400Kz

Mod)

|

receptacle

|

TP7—Ground]

900 kHz

|

iF+

to5

Band

Selector

AM

Signal

Generator

Monitor

Scope

CAR

STEREO

w/RADIO

—16—

|

CO-873EE/EG

3.

FM

I-F

ALIGNMENT

Band

Signal

Selector

Generator

10.7

MHz

Sweep

Generator

with

Markers

(C)

FM

IF

Capacitor

acoo

C7

Ootn

O

—I

it

1

i}

i

t

1

Input

VTVM

Terminal

Connection

Display

Adjust

Remarks

TP3—Ground

(U-Curve}”

Antenna

receptacle

TP2—Ground

(S-Curve)}

eer

ats

=

-]CAR

STEREO

4.

LW/MW/FM

RF

ALIGNMENT

Band

Signal

Selector

Generator

164

kHz

[400Hz

Mod.]

LW

263

kHz

[400Hz

Mod.]

603

kHz

[400Hz

Mod.]

|

MW

RF

|

MW)""4404

kHz

[400Hz

Mod.]

ne

88.1

MHz

[400Hz

Mod.]

FMRF

|

FM

107.9

MHz

[400Hz

Mod.]

w/RADIO

Input

VTVM

Terminal

Connection

Antenna

Speaker

receptacle

Terminals

AM

Dummy

AM/FM

Signal

Generator

S02

15p

oR)

(See

SAPS

CAR

STEREO

w/RADIO

Display

164

kHz

263

kHz

603 kHz

IFT

51

|.

Adjust

for

maximum

amplitude

and

syn-

metrical

curve.

omic:

IFT

150

Adjust

1404

kHz

VTVM

Adjust

for

maximum

amplitude

and

proper

linearity

between

about

+100

kHz

markers.

U-Curve

TP3

S-Curve

Remarks

*

Adjust

for

maximum.

*

Repeat

steps

2

&

3

times,

and

finish

at

low

frequency

of

each

alignment

item.

Oscilloscope

7.

FM

MULTIPLEX

ALIGNMENT

Align-

.

Band

Signal

Input

VTVM

:

Frequency

Counter

no

signal

Belem

(19

kHz)

FM

“

ar

ae

Antenna

Speaker

[400Hz

Mod.]

receptacle

Terminals

5.

FM

AGC

ALIGNMENT

Band

Signal

Input

VTVM

Selector

Generator

Terminal

Connection

*

Set

volume

control

for

0.5

W

output.

at

pitas

Antenna

Speaker

98.1

MHz

+

Attenuate

signal

[400Hz

Mod.]

receptacle

Terminals

;

generator

output

to

z

Mod.

11

dB

(uV)

and

adjust

for

3

dB

down

output.

VTVM

_

Oscilloscope

§

CO-873EE/EG

Remarks

-

Connect

a

10uU16V

between

TP2

and

ground,

and

220kQ

between

TP5

and

ground

(*1).

«

Adjust

for

19

kKHz+30Hz.

«

Adjust

for

maximum

_2paration.

8.

FM

ASC

ALIGNMENT

CAR

STEREO

w/RADIO

Band

Signal

Input

VTVM

Selector

Generator

Terminal

Connection

Display

89.9

MHz

Antenna

Speaker

38

dB

receptacle

Terminals

|

89.9

MHz

[400

Hz

Mod.]

6.

SEARCH

TRIGGER

&

SENSITIVITY

ALIGNMENT

*Set

VR151

fully

clockwise.

+

Adjust

for

20

dB

separation

at

38

dB

input.

Band

Signal

Input

VTVM

“

*

Short

circuit

between

TP9—Ground

IF

T801

TP8

and

ground.

98.108

MHz

:

54

dB

ee

98.1

MHz

Adjust

for

maximum.

[non-Mod.]

?

Speaker

VRi52

|

*

Adjust

to

stop

search

Terminals

tuning

at

15

dB

input.

999

kHz

*

Set

DX/LOC

in

DX.

Antenna

Speaker

Ra

28

dB

receptacle

Tareninals

999

kHz

Adjust

to

stop

search

{400

Hz

Mod.]

:

tuning

at

28

dB

input.

CAR

STEREO

w/RADIO

TP4

Frequency

Counter

19kHz:

10%,

400Hz:

30%

AM

Dummy

502

15p

AM/FM

Signal

Generator

oR]:

OO

VTVM

_

Oscilloscope

9.

DOLBY

NR

ALIGNMENT

CAR

STE

w/RADIO

Remarks

TCC-130

TPR—Ground

V

R201

+

Adjust

for

300

mV.

DOLBY

NR

ea

TCC-130

TPL—Ground

VR301

—19-—

Paes

|=

Seas

*

Adjust

for

300

mV.

OPERATION

OF

AUTO-REVERSE

DECK

INSERT

=)

PLAY

Cassette

Hook

Cassette

Holder

Insert

a

cassette

tape

into

the

cassette

holder.

The

cassette

hook

is

un-

@

hooked

and

the

cassette

holder

is

set

in

tape

loaded

condition.

Depress

the

FF

button

(

»

)

and

the

FR

plate

(FT)

is

slided

back-

ward

until

it

is

locked.

The

FR

action

lever

FR

idler

Lever

oo

FR

Action

Lever

lever.

(F)..is

meshed.

to

The

slot

arm

is

turned

@J|

and

the

clutch

gear

lever

is

turned.

Tape

Inserted

Clutch

Gear

Lever

Head

Insertion

Link

Head

Action

Gear

The

clutch

gear

is

mesh-

ed

to

the

head

action

gear.

the

reel.

Motor

driving

system

Indepressing

the

FF

-

Clutch

Gear

The

head

action

gear

Head

Action

Plate

(B)

Head

Action

Plate

(A)

rotates,

©

The

head

insertion

link

moves.

Solenoid

(Hofd)

The

head

action

plate

(A)

.moves

and

the

head

action

plate

(B)

turns.

The

chassis

ass’y

with

pinch

rollers

moves

to

the

cassette

tape.

The

play

fock

plate

@

turns

to

the

solenoid

and

the

deck

locks

to

play.

Motor

driving

system

on

playing

FR

tdier

Lever

(R)

button

(4),

operation

is

same

as

above.

PLAY

==)

MANUAL

PROGRAM

SELECTOR

Depress

the

selector

button.

program

The

program

Solenoid

is

absorbed.

The

gear

stopper

is

un-

hooked

through

the

solenoid

hook

lever.

selector

The

program

gear

rotates.

The

reverse

arm

is

turn-

ed

and

the

program

selector

plate

is

slided.

Program

Selector

Gear

Cam

Lever

Solenoid

Hook

Lever

|

Program

Selector

Plate

-

pe)

ee

Panasonic CQ-873EE User manual

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