JVC RC-545L Manuel utilisateur

MODEL

RC-545L/LB

FM-SW-MW-LW

4-BAND

RADIO

STEREO

CASSETTE

RECORDER

No.

1388

February

1979

RC-545L/LB

Contents

Page

SPECICATION

5.55.

iss

reich

vee

ele

SSR

Ree

area

tego

wes

ulate

cay

hte

hatder

WHE

dace

dlanit

bas

ibe

Gates

Main

Parts:

Locationic:

agen

ciscs.

Sone

far

lacs

ete

Shad

ale

eds

Wig

Uden

wane

Wye

SOS

Rane

owas

Disassembly

Replacement

........-

02.

ees

4,5

Tier

geareb

erat

seisi

aes

fos

boogaloo

SRL,

ral

aing!

las

Wane

eet,

SERN

wie

ald

Arisa

wie

6,7

Adjust

Recording

Bias).

ic:

Cee

eae

eee

Eee

ewe

Adjusting

Head

/AZimuth:

326...

ele

Be,

ere

Reig

cece

title

eee

ele

eee

Shee

ies dae

How’

Fit

Dial

Cordes

iis

eas

eos

eee

bee

Adjustment

Cassette

Mechanism.

2.2...

0...

eee

10,11

Block:

Diagram

ix¢.s:

pats

worse

Set

eats

ETS

Eee

Ete

Wiring

COnmection..-co5c5

she.

She

-dae

Betas,

Bua

hee

ete,

SOR

Sag

aed

Lgeee

-p

Oreerer

ala

was

Schematic

Diagram

RC-545L/LB

(Tuner)...

1.0...

eee

teens

Schematic

Diagram

RC-545L/LB

(Amplifier)...

2.0...

eee

Tuner:

Circuit:

Board:

Ass

'Voiitec.5.

cen

sie

hae

Sone

BASS,

BALLS

Ape

eae

eels

18,19

Exploded

View

Cassette

Mechanism

.........0

2...

eee

tenes

List

Cassette.

Mechanism

ccs

ice

dae

eee

See

Connector:Circuit

Board)

Assy

25.

aoa

86 ee

SER

OBA

LED

Circuit

Boatd

Ass’y.

cea

aces

cele

Sadho

MORN

ERE

ede

seed

aoe

Power

Supply

Circuit

Board

Ass’y

......

0...

eee

eee eee

eee

Exploded

View

Tuner

Chassis

Ass’y

2...

tee

eee

Exploded

View

Amplifier

Section...

....0..0

0.0.0.0.

24,25

Exploded

View

Front

Cabinet

....

0...

2.0...

cee

26,27

Exploded

View

Rear

Cabinet

(RC-545L)

0...

eee

nen

eee

Exploded

View

Rear

Cabinet

(RC-545LB)

1...

0...

eee

Final

Packing

Ass’y

(RC-545L)

2.0...

eee

tenes

Accessories.

(RE-S45

iso:

/aa/c

wale

cine

ali

daa

ale,

BARS

OOH

Final

Packing

Ass’y

(RC-545LB)

2... 0...

ee ee

eee

ene

Accessories

(RC-545LB).

0...

eee

eens

Specifications

DIMENSIONS:

9-1/2"

TUNER

SECTION

Frequency

Ranges

RECORDER

SECTION

Tape

Speed

Track

System

Recording

System

Erasing

System

S/N

Ratio

Fast

Forward

Time

Rewinding

Time

Wow

Flutter

AMPLIFIER

SECTION

Speakers

No.

1388

24.1cm(H)

42.4cm(W)

11.4cm(D)

16-3/4"

4-1/2”

88~108MHz

6~18MHz

540~1600kHz

150~350kHz

4.8

cm/s

(1-7/8

ips)

4-track

2-channel

stereo

Bias

Erasing

than

40dB

1kHz

Within

sec.

(C-60

cassette)

Within

sec.

(C-60

cassette)

0.14%

(WRMS)

12cm

(5)

3.22

WEIGHT:

Approx.

Power

Output

Input

Jacks

Output

Jacks

Input/Output

Jack

POWER

CONSUMPTION

SEMICONDUCTORS

ICs

Transistors

Diodes

POWER

SOURCE

4.5

(with

batteries)

9.9

Ibs.

Max.

5.4W

(2.7W+2.7W)(DC)

(2W+2W)(DC)

10%

THD

MIC

(0.8mV,

low

imp.)

Ext.

Speaker

(3.2~8Q)

Headphones

(80)

DIN

12W

(RC-545L)

9.5W

(RC-545LB)

(Microphone)

(Motor

governor)

9V,6

R20”,

“U2”

cells

equivalent

110/220/240V,

50/60Hz

Main

Parts

Location

RC-545L/LB

Fig.

Ref.

No.

Parts

No.

Parts

Name

Description

O’ty

*VXL4045-001

Knob

VOLUME

*VXKM520-30012

BALANCE

*VXKM520-30012

TONE

VXL4021-001

Tuning

VXKM520-20010

FINE

TUNING

*VJN4022-001

Pointer

*VQB012B-303

Bar

Antenn

Ass’y

L4,5

Circuit

Board

Ass’y

Tuner

Amplifier

Connector

Cassette

Mechanism

Ass‘y

EAS12P126SH

Speaker

12cm(5"’),

3.2Q

*V/DM5049-004-002

Connector

Wire

Ass’y

CN1-S

*\V/DM5049-004-001

CN304-S

*V/DM5049-004-004

”

CN303-S

*VDM5049-004-003

CN302-S

Note:

Asterisked

parts

(*)

show

“NEW

PARTS”.

Other

parts

are

all

“CURRENT

PARTS”;

therefore,

check

your

inventory

and

order

situation

before

placing

new

order

avoid

making

extra

stock.

The

circuit

board

assemblies

and

whole

assembly

cassette

mechanism

this

model

will

not

available

spare

parts.

The

parts

marked

are

the

important

parts

for

safety

assurance.

Use

the

specified

part,

when

replacing

the

safety

assurance

part,

never

use

equivalent

one.

No.

1388

RC-545L/LB

Disassembly

Replacement

Rear

Cabinet

Remove

the

battery

cover.

Remove

screws

(1)~(7):

SDSB3020R.

Disconnect

connectors

from

the

rod

antenna

(white)

and

power

supply

section

(red

black).

Amplifier

Circuit

Board

Take

off

the

volume,

balance

and

tone

control

knobs.

Disconnect

connectors

(B),

(C)

(D).

Remove

screws

(10)~(13):

SPSP3006VS

and

(14):

SBSB3014C.

Fig.

Tuner

Section

Set

the

tuning

dial

the

minimum

frequency.

Take

off

the

tuning

and

fine

tuning

knobs.

Disconnect

the

5-pin

connector

(A)

from

the

amplifier

section

and

connector

the

speaker

terminal.

Remove

screws

(8)

(9):

SBSB3025C.

Note:

Engage

the

pointer

the

front

cabinet

with

the

pointer

holder

the

tuner

chassis,

the

pointer

separates

from

the

holder

removing

the

turer

section

from

the

cabinet,

when

mounting

the

tuner

section

the

cabinet.

For

details

refer

page

Fig.

No.

1388

Fig.

Amplifier

Section

(with

Cassette

Mechanism)

BRWN

Take

off

the

volume,

balance

and

tone

control

knobs.

Disconnect

connectors

(A),

(B),

(C)

(D).

Remove

screws

(14)~(18):

SBSB3014C.

Open

the

cassette

case

depressing

the

STOP/EJECT

button

disengage

the

internal

mechanism.

Fig.

RC-545L/LB

Cassette

Mechanism

Power

Supply

Section

Remove

the

amplifier

section

accordance

with

the

Remove

screws

(21)

(22):

SBSB3014C.

item

Remove

screws

(10)~(13):

SPSP3006VS.

Desolder

wires

from

the

motor,

heads

and

leaf

switch

the

cassette

mechanism.

Fig.

Component

Parts

Cassette

Mechanism

The

cassette

mechanism

RC-545

the

essentially

the

same

RC-525

and

RC-323.

Refer

the

service

manual

RC-525

RC-323.

Fig.

Jack

Board

Remove

the

amplifier

circuit

board

following

the

item

Remove

screws

(19)

(20):

SBSB3010Z.

Fig.

No.

1388

RC-545L/LB

Tuner

Alignment

Output

Measuring:

Alignment

Speaker

terminal

(Impedance

3.2Q),

output

level

50mW

(0.4V/3.2Q

)

Input

(SSG}

Modulation

400Hz,

Modulated

30%

[

Step

Frequency

Input

Signal

Place

Set

the

Band

Frequency

Given

aligned

Capacitor

Loop

Antenna

T2,3

Minimum

—_

(1F)

Repeat

the

Step

and

adjust

for

further

improvement.

360KH2

panei

To6

Repeat

the

Steps

160kHz

Signal

Repeat

the

Steps

and

adjust

for

further

improvement.

520kHz

Maximum

16B0KH2

eee

TC7

Repeat

the

Steps

10.

eoone

yarns

Repeat

the

Steps

13,

and

adjust

for

further

improvement.

Repeat

the

Steps

16.

S.OMAZ

Fod

Antenne

through

Dummy

Antenn

ie)

Discriminator

Alignment

Input

(Sweep

Generator)

Output

(Oscilloscope)

TP3

(hot)

Discriminator

Repeat

the

Steps

19,

and

adjust

for

further

improvement.

TP4

(hot)

TP7

TP6

(hot)

TP7

Mode

Place

aligned

Wave

form

T1,4

Peak

S-curve

Step

Discriminator

No.

1388

RC-545L/LB

Alignment

Input

(SSG):

Use

75Q

terminal,

modulation

400Hz

modulated

22.5kHz

deviation,

Connect

Hot

side

TP1

and

Cold

side

TP2.

Step

Frequency

Input

Signal

Place

Set

the

87.5MHz

Maximum

109MHs

TP1

TP2

TCA

Repeat

the

Steps

TP1

TP2

90MHz

Signal

106MHz 106MHz

Signal

Repeat

the

Steps

and

adjust

for

further

improvement.

MPX

Alignment

Dummy

Antenna

Regular

Method

Connect

frequency

counter

the

test

point

TPS.

Supply

the

monaural

signal

(98MHz,

60dB)

across

the

test

points

TP1

and

TP2.

Adjust

the

variable

resistor

VR1

that

the

frequency

becomes

19kHz

100Hz.

Simplified

Method

Tune

stereo

broadcast.

Set

the

variable

resistor

VR1

center

position

the

range

where

the

stereo

indicator

keeps

lighting.

R2=

800

10pF

Output

impedance

S.S.G.

Fig.

Parts

Arrangement

for

Alignment

No.

1388

RC-545L/LB

Adjusting

Recording

Bias

Frequency

Bias

Current

Connect

frequency

counter

across

TP101.

Connect

V.T.V.M.

across

TP101

and

TP201.

Set

the

BEAT

CUT

switch

left

position.

Adjust

the

variable

resistor

VR101

(L)

and

VR201

{R)

Adjust

the

oscillator

coil

L301

that

the

counter

that

the

voltage

becomes

4.5mV

(450uA/109).

indicates

68kHz.

VR201

1O)

TP101

Fig.

Adjusting

Head

Azimuth

Regular

Method

Connect

dual

channel

oscilloscope

the

speaker

terminals.

Set

the

MODE

switch

the

STEREO

position.

Playback

the

test

cassette

for

azimuth

adjustment.

Adjust

the

head

azimuth

that

the

output

signals

left

and

right

channels

will

become

maximum

and

phase.

Note:

single

channel

oscilloscope

will

used,

apply

the

left

channel

signal

the

X-axis

and

the

right

Output

the

Y-axis

and

draw

the

Lissajous

figure.

Simplified

Method

Connect

V.T.V.M.

across

the

speaker

terminal.

Set

the

MODE

switch

MONO.

—m

Angle

Playback

the

test

cassette

for

azimuth

adjustment.

Adjust

the

head

angle

for

maximum

output.

Note:

The

output

voltage

shows

three

peaks

while

adjusting

head

angle

illustrated

the

right

adjust

for

maximum

peak.

Check

that

the

output

difference

between

MONO

and

STEREO

within

3dB.

No.

1388

Fig.

’

RC-545L/LB

How

Fit

Dial

Cord

Fit

the

dial

Cord

Dial

Cord

Material

Tetoron

Diameter

cord

0.6mm

(24

mil)

Whole

length

cord

775mm

(30-1/2’’)

Turn

the

dial

drum

fully

clockwise.

Fit

the

cord

numerical

order

shown

Fig.

14.

Fix

the

pointer

holder

the

cord

and

adjust

the

starting

point.

Turn

the

dial

drum

fully

counterclockwise.

Set

the

left

edge

needle

holder

the

projected

marking

the

chassis

shown

Fig.

and

fix

the

cord

the

holder

lock

paint.

PWN

Engaging

the

pointer

with

the

pointer

holder

Set

the

pointer

holder

the

minimum

frequency

turning

the

dial

drum

fully

counterclockwise.

Set the

pointer

assembled

the

cabinet

the

projection

POINTER-~—>

the

cabinet

shown

Fig.

16.

HOLDER

Mount

the

tuner

section

the

cabinet

and

engage

the

pointer

with

the

holder.

MARKING

Fig.

POINTER

PROJECTION

Fig.

Aigew

No.

1388

RC-545L/LB

Adjustment

Cassette

Mechanism

Play

Timing

the

playback

mode,

the

clearance

(A)

between

the

pinch

roller

arm

and

the

stopper

head

base

should

within

0.2

0.3

mm.

the

clearance

beyond

the

limits,

bend

the

part

(B)

pinch

roller

arm

adjust

the

clearance

shown

Fig.

17.

Pinch

Roller

Arm

Stopper

(Head

Base)

0.2

~0.3

Fig.

Check

see

that

the

take-up

idler

turns

the

same

time

the

pinch

roller

the

take-up

idler

turns

first

and

then

the

pinch

roller

turns,

when

the

PLAY

button

pressed.

the

pinch

roller

turns

very

later

than

the

take-up

idler,

bend

the

part

(C)

head

base

which

contacted

with

the

take-up

idler

the

part

(D)

the

(E)

direction

shown

Fig.

18.

the

take-up

idler

turns

later

than

the

pinch

roller,

bend

the

part

(C)

(F)

direction.

Head

base

Take-up

Idler

Fig.

No.

1388

Cue

Review

Mechanism

Timing

Cue

Action

the

playback

mode,

check

see

that

the

take-up

reel

disk

stops

turning

after

the

pinch

roller

has

stopped

turning

stops

the

same

time

and

then

the

mechanism

becomes

fast

forwarding

mode

when

the

CUE

button

has

been

pressed.

the

timing

out

order,

adjust

following

the

item

‘Play

Timing”.

Timing

Review

Action

the

playback

mode,

check

see

that

the

take-up

reel

disk

stops

turning

after

the

pinch

roller

has

stopped

stops

the

same

time

and

then

the

mechanism

becomes

rewinding

mode,

when

the

REVIEW

button

has

been

pressed.

the

timing

out

order,

adjust

following

the

item

“Play

Timing”.

Pause

Timing

the

playback

mode,

check

that

the

PAUSE

button

locked

and

the

mechanism

temporarily

becomes

stop

mode

when

the

PAUSE

button

has

been

pressed,

and

that

the

button

released

and

the

mechanism

becomes

playback

mode

when

the

button

has

been

pressed

again.

the

mechanism

becomes

fast

forwarding

mode,

when

the

PAUSE

button

has

been

gradually

pressed,

bend

the

part

(G)

pinch

roller

arm

the

arrow

direction

adjust

that

the

take-up

reel

and

the

pinch

roller

stops

the

same

time

shown

Fig.

19.

Pause

Bar

Pinch

Roller

Arm

Fig.

40's

Ce manuel convient aux modèles suivants

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