Blaupunkt MVP 01 Manual de usuario

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@

BLAUPUNKT

MOBILE

VIDEO

SYSTEMS

VIDEO

PLAYER

MVP

01

PAL

7

607

900

031

(24v)

PAL/SECAM

7

607

900

082

(24v)

PAL

7

607

900

036

(12v)

IR

REMOTE

CONTROL

7

607 910

050

KH-C/VKD

3D93

420014

08/93

Kundendienstschrift

«

Service

Manual

PAL-Version

(...031,

...036)

Inhaltsverzeichnis

Seite

Table

of

Contents

Page

Technische

Daten

2

Technical

Data

2

Technische

Hinweise

2

Technical

Informations

2

Bedienungshinweise

MVP

01

3

Operating

Instructions

MVP

01

3

Erforderliche

MeBgerate,

Required

Servicing

Fixtures,

Schablonen

und

Spezialwerkzeuge

4

Jigs

and

Special

Tools

4

Service

Hinweise

5-13

Service

Notes

5-13

Mechanischer

Abgleich

14-40

Mechanical

Adjustment

Procedure

14-40

Elektrischer

Abgleich

41-44

Eiectricai

Adjustment

Procedure

41-44

Halbleiter-

AnschluBpunkte

45-47

Semi

Conductor

Connection

Points

45-47

Verdrahtungsplan

48-50

Interconnection

Schematic

Diagram

48-50

Blockschaltbilder

51-63

Block

Diagrams

51-63

Schaltbilder,

Platinen,

Oszillogramme

und

Schematic

Diagrams,

Component

Boards,

Spannungstabelle

64-94

Oscillograms

and

Voltage

Chart

64-94

Bedienungshinweise

IR-

Fernbedienung

95

Operating

Instructions

IR

Remote

Control

96

Schaltbild

und

Platine

SECAM-Teil

97-98

Schematic

Diagram

and

Board

SECAM

Section

97-98

Explosionszeichnungen

99-102

Exploded

Views

99-102

Ersatzteilliste

103-107

Spare

Parts

List

103-107

Technische

Daten

Technical

Data

ALLGEMEIN

GENERAL

Betriebsspannung:

12V

(...

036)

24

V

(...

031,

...

032)

Leistungsaufnahme:

15W

Power

consumption:

15

W

Betriebstemperatur:

0°c

~

40°C

Operating

temperature:

0°C

~

40°C

Luftfeuchtigkeit:

10

%

-

80%

Humidity:

10

%~-

80%

Abmessungen

BxHxT:

215

x

95

x

269,5

Dimensions

(WxHxD):

215

x

95

x

269.5

Masse:

ca.

3

kg

Weight:

approx.

3

kg

es

°

5

SS

f

:

CS

@®

VIDEO VIDEO

PAL-Version

(...031,

...036)

Bedienungshinweise

Operating

Instructions

Operating

voltage:

12

V

(...

036)

24V

(...031,

...

032)

Fernsehsystem

TV

system

CCIR:

625

Zeilen

CCIR:

625

lines

'

50

Halbbilder

50

fields

Hinweis:

Das

Gerat

darf

nur

mit

dem

beigelegten

Note:

The

unit_

may

only

be

connected

te

; .

Stromkabel

an

die

auf

dem

Typschild

ste-

operating

voltage

mentioned

on

the

type

labe!

PAL-Farbsignal

(...

031,

...

036)

PAL

colour

signal

(...034,

...

036)

hende

Betriebsspannung

angeschlossen

using

the

enclosed

power

cable.

PAL/SECAM-Farbsignal

(...032)

PAL/SECAM

colour

signal

(...032)

x

werden.

z

}

-

in-

hatten.

1)

POWER

—

to

switch

orvoff

Bandformat:

VHS

Band

format:

VHS

(i

POWER

zum

Ein-

und

Aussc

;

Q

;

‘

:

:

+

Hinweis:

Das

Gerat

schaitet

automatisch

*

Note:

The

unit

switches

on

automatically

Wiedergabesystem:

4

rotierende

Kopfe

Playback

system:

4

rotating

heads

ein,

wenn

eine

Cassette

eingeschoben

wird

and

starts

playback,

ifa

cassette

is

inserted.

VHS

Schragspurvertahren

VHS

helical

scan

und

geht

danach

in

die

Funktion

Wiederga-

Bandgeschwindigkeit:

B

P'

speed:

E

be.

(@}

TRACKING

+,-

—

to

eliminate

interference

patterns.

Press

Vor/Ric

aan

#

page

Lh

ti

asin

se

st

80)

(2)

TRACKING

+,-

—

zum

Ausblenden

von

Bildzittem

bei

Stand-

both

button:

Autotracking.

kspuilzeit:

.

6

Min,

ing

time:

approx.

6

min

bild.

Ausgangspegel:

1,0Vss

/

75Q

Output

level:

1.0Vpp

/

750

Beide

Tasten

driicken:

Autotracking.

3)

REW/

Ge)

~

after

STOP:

fast

rewind

Signal-Rauschabstand:

>

37

dB

SIN

ratio:

>37

dB

@Qrewe

-

al

eo

‘secciieia

iz

~

during

playback:

fast

picture

seek

tuning

-

il

4

<

Horizontalauflésung

Horizontal

(Ton

wird

sesivnpeichate?

(the

sound

will

be

muted).

ae

Farbe:

>

230

Linien

colour

resolution:

>

230

lines

*

zuriick

auf

normale

Wiedergabe:

Taste

©

seal

nied

playback:

press

button

PLA’

PLAY

emeut

driicken.

©

89am.

w

Wh

©

PLAY/x2

~

playback

(4)

PLAY/x2

Wiedergabe

£

‘

AUDIO AUDIO

~

Taste

2x

driicken,

Wiedergabe

mit

ca.

dop-

-

aie

ogc

ee

playback

with

approx.

Wiedergabesystem:

2

rotierende

Képfe

fir

HiFi

Playback

system:

2

rotating

HiFi

audio

heads

pelter

Geschwindigkeit

joubled

spee

.

u

i :

back

to

normal

playback:

press

button

PLAY

1

Kopf

far

Langsspur

1

head

for

longitudinal

track

ae

eres

ee

Epes

la

ea

Ausgangspege!:

-8

dBV

(400

mVss)

/

1

kHz

(1kQ)

Output

level:

-8

dBV

(400

mVpp)

/

t

KHz

(1kQ)

@

rr

—

nach

STOP:

schneller

Voriau

©)

GFF

—

after

STOP;

fast

forward

Ubertragungsbereich

Frequency

response

*

amBandende

automatisches

Zuriickspulen

*

automatic

rewinding

at

the

end

of

the

tape

HiFi:

20 Hz

—

20

kHz

HiFi:

20

Hz

—

20

kHz

—

bei

Wiedergabe:

schneller

Bildsuchlauf

-

during

playback:

fast

picture

seek

tuning

N

I

100

Hz

-

8

KH

No

.

(Ton

wird

stummgeschattet).

(the

sound

will

be

muted).

Oras

es

e

mal:

100

Hz

—

8

kHz

*

zurick

auf

normale

Wiedergabe:

Taste

*

backtonormal

playback:

press

button

PLAY

Signal-Rauschabstand

SIN

ratio

PLAY

emeut

drucken.

once

again.

HiFi:

>

68

dB

HiFi:

>

68

dB

€

STOP

~

Beenden

des

Bandiauts.

;

€)

STOP

—

switch

off

the

tape

winding

Normal:

>

40

dB

Normal:

>

40

dB

7)

PAUSE/STILL

-

Standbild

(Gerat

schaltet

nach

5

Min.

Stand-

PAUSE/STILL

-

still

(after

having

activated

the

still

for

5

min.

:

i

bild

aut

Stop)

;

the

unit

switches

over

to

stop)

*

zurick

auf

normale

Wiedergabe:Taste

+

backtonormal

playback:

press

button

PLAY

PLAY

nochmais

drucken.

once

again

.

.

. .

:

@)

EJECT

—

Cassettenauswurf.

‘

-

Technische

Hinweise

Technica!

Information

@

=

Cassohienschecht.

@

EJECT

-

coeeete

ee

eer

}

}

-

cassette

40:

AUDIO

OUT

=

—

Wahi

der

Tonspur:

HiFi

L+R.

HiFiL,

HIFiR,

=

: .

jaaee

‘

HiFIR

1.

Feuchtigkeitsanzeige

1.

Humidity

indicator

a

SELECT

keine

Anzeige

-

normale

Tonspur.

appeias

car

hibrre

pies

aahierta

ills

iF

Po

sich

fone

MVP

01

sete

cab

cca

rey

durch

bpd

ae

fd

in

=

MVP

01

(e.g.

condensation),

Gr

RESET

-

pa

ane

ia

des

Bandzahiwerkes

@

RESET

=

to

reset

the

tape

counter

to

"0

:

00.00"

ondensation,

so

erscheint

im

Display

ein

“d”.

isplay

will

show

“cd”.

®

SSnmannry

al

‘ .

42)

MEMORY

=

tostore

atape

position

combined

with

button

Bei

eingeschaltetem

Gerat

(POWER

ON)

wird

die

When

the

unit

is

tumed

on

(POWER

ON),

2

special

@2;

MEMORY

-

a

pret

pole

nad

.

Verbin-

V2

RESET

tia

unk

eioed

anaingtte

peal

Feuchtigkeit

an

der

Kopftrommeleinheit

durch

eine

heating

takes

charge

to

remove

the

humidity

at

the

head

sopet

ander

gespeicherten

Bandstelle

bei

the

stored

tape

position

when

fast

forwarding

parent

pseiia:

;

orem:

ae

aee

:

:

schnellem

Vor-

bzw.

Ricklauf.

or

rewinding.

aE

ad

se

nzeige

“d”

erloschen

ist

(nach

ca.

1

-

As

soon

as the

“d"

indication

goes

out

in

the

display

(after

@:

DISPLAY

-

zeigt

die

Funktionen

an.

Anzeige

.<"

@

~

indicates

the

functions.

Indication

“d"

.5

Std.),

kann

der

MVP

01

wie

gewohnt

betrieben

about

1-

1,5

hours),

the

MVP

01

can

be

put

into

operation

Feuchtigkeitsanzeige.

humidity

indication

werden.

again.

Ga:

REMOTE

—

infrarotempfanger

fiir

Fernbedienung.

Ga)

REMOTE

—

infrared

receiver

for

remote

contro!

2.

Betriebstemperatur

2.

Operation

temperature

&

oc

=

hse

sett

Betriebsspannung.

as}

DC

~

jack

for

operating

voltage

=

‘

Wird

durch

die

Umgebungstemperatur

die

Betriebs-

If

the

operating

temperature

of

the

MVP

01

becomes

too

:

7

ae

ies

Mees

tee

:

5

se

al

aeons

pinata

eer

01

zu

hoch,

so

blinken

die

Bedien-

=

ae

to

a

abucatieag

temperature,

the

display

*

Hinweis:

Die

Anschliisse

1

und

2

missen

Note:

The

connections

1

and

2

shall

both

lement-

-

,

indicators

wil

sta

ING.

beide

angeschlossen

werden.

be

connected.

oe

soeiea

ih

Cee

paths

priate

All

functions

will

be

blocked

to

protect

the

tape

and

the

a

AUTO

REPEAT—

zum

automatischen

Wiederholen.

Gé)

AUTO

REPEAT

-

to

repeat

automatically

Indi

Fail

aera

apr

cassette

will

be

ejected.

'

.

‘@.

REMOTE

~

AnschiuB

fir

Kabelfernbedienung.

47)

REMOTE

~

connection

for

cable

remote

contro!

In

diesem

Fail

das

Ger&t

ausschalten,

bis

sich

die

tn

this

case,

turn

the

unit

off

until

the

temperature

in

the

AB

+20"

—

Video

und

Audio

Ausgangsbuchsen.

x

-

(2

—

video

and

audio

output

jacks

Temperatur

im

Fahrzeuginneren

abgekishtt

hat.

car

cabin

has

cooled

down.

ao

oe

Erfordertiche

MeBgerate,

Schablonen

und

Spezialwerkzeuge

Required

Servicing

Fixtures,

Jigs

and

Special

Tools

VHS-Testkassette

VHS

alignment

tape

8

627

000

540

Einstelpiatte

Post

adjustment

plate

8619

497

806

8619

497

816

Feineinstell-Schraubendreher

Fine

adjustment

screwdriver

8619

497

814

Schmiermittel

Lubricant

8

627

000

361

Lupe

Magnifying

glass

Sechskantschlisseisatz

Hexagonal

wrench

set

8619

497

811

8619

498 006

Bandzugwaage

Back

tension

meter

Spezialzange

Retaining

ring

remover

ea

(Zum

Enttemenund

Aufsetzen

von

Sicherungsringen)

{For

removing

and

inserting

retaining

rings)

8

619 498

001

8619

498

004

Einstell-Schraubendreher

Post

adjustment

screwdriver

of

Kopfreiniger

Head

cleaning

sticks

VA

8

627

000 364

Pinzette

8619

497

813

8619

497

807

8619

498

003

8

619

499

428

8

627

000

363

8

627

000

737

Héhenmefuhr

Ree!

table

height

fixture

Spezial-Schraubendreher

H-position

screw

driver

Winkel-Kreuzschiitz

Lock

screw

wrench

Mechanikerspiege!

Mechanics

‘mirror

Winkelpinzette

Angle

tweezers

A.

Service

Hinweise

A.

Service

Notes

When

servicing,

take

notice

of

following

items.

A.

Service

Position

1.

In

the

order

described

in

the

Disassembly

Section,

remove

the

Top

Cover

and

open

the

Main

C.8.A.,

page

14.

Then

carefully

place

it

into

the

Service

Position

as

shown

in

Fig.

1-1.

Operation

I

C.B.A.

Main

C.B.A.

Operation

1

C.B.A.

VCR

Unit

Fig.

1-1

2.

When

servicing

the

bottom

portion

of

the

Mechanical

Chassis,

remove

the

Mechanical

Chassis

from

Bottom

Case

removing

3

Screw

Covers,

2

Screws

(S

-

13),

2

Screws

(S

-

14)

and

Screw

(S

-

15)

in

Fig.

D7,

page

16.

3.

Next,

place

the

Mechanical

Chassis

up

side

down

as

shown

In

Fig.

1-2.

VCR

Unit

Main

C.B.A.

Operation

I

C.B.A.

Fig.

1-2

B.

Test

Point

Information

B-1.

Actual

Board

on

VCR

With

this

model,

al!

Test

Points

use

the

foil

solder

pad

for

connection

of

the

measuring

equipment.

B-2.

Schematic

and

C.B.A.

Diagrams

in

this

i

Service

Manual

on

pages

48

-

98

©

:

Used

for

the

indication

of

Test

Point

with

No

Test

Pin

(Foll

Solder

Pad).

C.

Simplified

Fauit

Finding

Point

(TP6002)

This

model

has

the

Simplified

Self-

Diagnostic

System

to

facilitate

finding

the

cause

when

the

Unit

shuts

off

or

stops

automatically.

1.

Preparation

Connect

the

OSCILLOSCOPE

probe

to

TP6002

on

the

System

Control

Section

of

the

Main

C.B.A.

2.

Indication

The

Signal

at

TP6002

indicates

the

foliowing

causes.

Note:

In

hormal

condition,

DC

+5V

Signal

at

TP6002

is

displayed.

fe]

ween

[i

‘|

1.

|

Takeup

Reel

Lock

Low

Voltage

There

Is

no

TAKEUP

REEL

Sensor

Pulse

for

5

seconds

or

1

second

(only

SEARCH

MODE).

(Takeup

Reel

Sensor

Puise

at

pin

68

ot

1C6001)

Cylinder

Lock

0.3Hz

Pulse

(Duty

50%)

3.0Sec

f———1

Cylinder

Motor

stops

in

the

REC,

PB,CUE,

REVIEW,

SLOW

or

STILL

mode

for

1

second.

{Cylinder

Lock

(

L)

signal

is

detected

inside

1C6001)

Exceeds

Loading/Unloading

Time

0.7Hz

Pulse

(Duty

50%)

1.4Sec

b—

Loading/unloading

time

exceeds

the

normal

loading/unloading

time,

with

no

shift

to

the

next

mode.

(Position

signals

supplied

from

Mode

Select

Switch

to

pins

11-

13

of

1C6001)

Exceeds

Cassette

Loading/Unloading

Time

intermittent

Pulse

Cass

ing

ti

ssbciled-obes

ette

loading/unloading

time

ex-

ceeds

the

normal

cassetie

load-

Sr

5\

|

ing/unloading

time,

with

no

shift

to

the

next

mode.

(Cassette

Off

(H)

/

Up

(M)

/

Down(L)

ee

Plt

OV

|

signal

at

pin

71

of

1C6001)

D.

Connection

of

the

Flexible

Cable

to

Trap

Connector

ee

eee

D.D.

Cylinder

Unit-

P3501

Main

C.B.A.

For

the

Location

of

Pin

1

on

the

Trap

Connectors,

use

the

pin

1

indication

on

the

Typical

C.B.A.

D.O.

Cylinder

Unit

Flexible

Cable

Fig.

3-1

(Removal

or

installation

of

Flexible

Cable)

a.

Removal

4)

On

the

Trap

Connector,

pull

out

both

ends

of

the

Locking

Tab

surrounding

the

cable

end

to

release

the

Trap

portion

of

the

Connector.

Then

pull

Fiexible

Cable

out

to

remove

as

shown

in

Fig.

3-

2.

Flexible

Cable

Head

Amp

C.B.A.

Unit

Pull

beth

sides

of

tab

together

b.

Installation

1.

Insert

the

end

of

the

Flexible

Cable

into

the

Trap

Connec-

tor

so

it

lays

smoothly

across

the

slot.

Press

the

middie

of

the

Cable

firmly

against

the

Trap

Connector

slot,

and

hoid

it

securely.

.

Without

pinching

the

Cable,

press

the

Lacking

Tabs

in

against

the

Trap

Connector

until

both

ends

snap

into

their

locked

position.

_

Pull

lightly

on

the

Cable

to

check

for

positive

connection.

Le)

wo

b

Note:

Take

care

when

removing

or

installing

the

Flexible

Cable

to

prevent

Cable

damage.

E.

Cassette

Tape

for

servicing

with

Left

Side

Down

This

position

Is

used

only

when

servicing

the

Bottom

portion

of

the

Mechanical

Chassis.

If

misloading

of

the

cassette

tape

is

encountered

in

this

position,

press

the

Cassette

Tape

firmly

into

the

Cassette

Up

Unit

with

the

teft

thumb.

F.

Variable

Voltage

Isolation

Transformer

Because

a

Hot

Chassis

Ground

is

present

in

the

Power

Supply

Circuit,

an

Isolation

Transformer

must

be

used.

Also,

in

order

to

have

the

ability

to

Increase

the

input

voltage

slowly,

when

troubleshooting

this

type

Power

Supply

Circuit,

a

variable

isolation

transformer

is

required.

G.

Service

Test

Point

(TP6001)

The

detection

of

the

Supply

/

Takeup

Photo

Transisto:s,

Reel

Sensor

and

Cylinder

Lock

will

be

inhibited

when

TP6001

is

grounded

on

the

System

Control

Section

of

the

Main

C.B.A.

H.

Method

for

Manual

Loading

/

Unloading

of

VCR

Turn

the

Center

Pulley

Unit

in

Fig.

4

clockwise

(for

loading)

or

counterclockwise

(for

unloading)

while

pushing

the

change

lever

(located

on

bottom

side)

in

Fig.

§

or

pushing

the

piunger

of

the

solenoid

(located

on

top

side)

in

Fig.

6

as

indicated

by

the

arrow

mark

to

release

the

lock.

Bottom

View

ee

‘

.

\

S

Center

Pulley

b

|

Pitan

3

Fig.

4

Bottom

View

Change

t-ever

Fig.

6

|.

How

to

place

the

Cassette

Holder

in

the

Down

Condition

without

a

Cassette

Tape

In

the

Cassette

Holder

up

condition,

the

VCR

can

not

be

operated,

even

if

Service

Test

Point

(TP6001)

is

grounded.

To

place

the

Cassette

Holder

in

the

down

position

without

a

cassette

tape

use

the

following

procedure.

1.

Hold

the

Lock

Arm

with

right

thumb

until

the

Cassette

Holder

Unit

clears

the

Locking

Tab

of

the

Rear

Frame

Unit.

2.

Press

the

Sub

Holder

Unit

into

the

loading

condition

with

left

thumb

as

shown

in

Fig.7.

3.

After

clearing

the

Locking

Tab,

the

Cassette

Holder

Unit

will

move

Into

down

position

by

itself.

ee

Locking

Tab

\

Lock

Arm

Cassette

Holder

Unit

Cassette

Ulp

Unit

Fig.

7

J.

Service

of

Capstan

Rotor

Unit

The

Capstan

Rotor

Unit

is

supplied

as

a

replacement

part

In

a

complete

unit

with

a

spring

loaded

Capstan

pulley.

Do

not

remove

the

Retaining

Ring

on

the

Capstan

Pulley

of

the

Capstan

Rotor

Unit.

Capstan

Rotor

5

=

Retaining

Ring

\®)

Constan

Pulley

Fig.

8

K.

Cleaning

with

Isopropyl

Alcohol

91%

All

Isopropyl Alcohol

91%

must

be

removed

from

the

tape

path

after

cleaning

by

using

a

dry

Head

Cleaning

Stick

(8

619

497

813)

or

tape

damage

will

occur.

L.

How

to

defeat

the

Auto

Tracking

Function

To

defeat

Auto

Tracking

Function

piace

a

jumper

between

TP6003

and

GND

on

the

System

Control

Section

of

the

Main

C.8.A.

in

STOP

Mode

to

maintain

the

Neutral

Position.

M.

Black

Screws

on

the

Chassis

Black

Screws

are

used

on

the

Mechanical

Chassis

to

iden-

tify

screws

that

require

adjustment.

N.

Service

of

RF

Converter

Unit

|

Since

the

RF

Converter

Unit

has

already

been

adjusted

at

the

factory.

Do

not

try

to

adjust

the

4.5MHz

(F)

Crystal

Oscillator

Frequency

Control.

O.

Set

Tracking

to

the

Neutral

Position

Eject

and

reinsertion

of

Tape

will

access

the

Neutral

Track-

Ing

position.

ire)

P.

How

to

read

the

Disassembly

/

Assembly

Procedures

(For

Cabinet

Part)

(For

Mechanica!

Part)

ae

a

ae

®

UNHOOK/UNLOCK/

RELEASE

ADJUSTMENT

/UNPLUG/UNSOLDER

-CONENON

ee

Ses,

Alignment

Procedures

for

Mechanisa

iten

13-2

aE

SETTING

PLATE

it

(+)

Sea,

Aligrment

Procedures

tor

Mechanism

(tee

13-2

2(C-1),

24P-1),

4(P-2)

cMote

2>

|

(+)

Sea,

Setting

Condition

in

Fig

Dud

@®:

Order

of

steps

in

Procedure

When

reassembling,

perform

the

step(s)

in

the

reverse

order.

These

numbers

are also

used

as

the

identification

(location)

No.

of

parts

in

Figures.

@®:

Starting

No.

followed

by

corresponding

part

which

can

be

removed

at

this

stage.

See

example

below.

Example:

Pressure

Cam

Cap

can

be

removed

without

removing

any

other

parts

beca

Abseasiivar

thane

nadig

9

any

Pp

use

the

STEP/LOC.

No.

and

the

But

Pressure

Roller

Arm

Unit

can

be

removed

only

after

removing

Pressure

Cam

Cap

(No.@)

@:

Part

to

be

removed

or

installed.

@:

Location

of

part.

T=Top;

B=Bottom

®:

Fig.

No.

showing

Procedure

or

Part

Location.

©:

Identification of

part

to

be

removed,

unhooked,

unlocked,

released,

unplugged

d

'

.

5

,

,

unclamped

o}

P=Spring;

W=Washer

Bee

atic

C=Cut

Washer,

A=Retaining

Ring

N=Nut;

S=Screw

%

=

Unhook,

unlock,

release,

unplug

or

unsolder

2(C-

2)=2

Cut

Washers

(C-

2)

@:

Adjustment

information

for

installation.

#

=

Condition

for

adjustment

(+)

:

Refer

to

Exploded

Views

for

Lubrication

intormation.

Q.

Replacement

procedure

for

Leadiess

(Chip)

Component

The

following

procedures

are

recommended

for

the

replace-

ment

of

the

leadiess

components

used

In

this

Unit.

4.

Preparation

for

replacement

a.

Soldering

tron

Use

a

pencil-type

soldering

Iron

that

uses

less

than

30

watts.

b.

Soider

Eutectic

Solder

(Tin

63%,

Lead

37%)

is

recom-

mended.

c.

Soldering

time

Do

not

apply

heat

for

more

than

4

seconds.

d.

Preheating

Leadless

capacitor

must

be

preheated

before

Instal-

lation.

{130°C

-150°C

,

for

about

two

minutes.)

Note:

a.

Leadless

component

must

not

be

reused

after

removal.

b.

Excessive

mechanical

stress

and

rubbing

of

the

component

electrode

must

be

avoided.

2.

Removing

the

leadiess

component

Grasp

the

leadiess

component

body

with

tweezers

and

alternately

apply

heat

to

both

electrodes.

When

the

solder

on

both

electrodes

is

melted,

remove

leadless

component

with

a

twisting

motion.

Note:

a.

Do

not

attempt

to

lift

the

component

off

the

board

until

the

component

is

completely

disconnected

trom

the

board

by

a

twisting

action.

b.

Take

care

not

to

break

the

copper

foil

on

the

printed

board.

Soldering

Iron

Fig.

9

3.

installing

the

jeadiess

component

a.

Presolder

the

contact

points

of

the

circuit

board.

YA

Soldering

fron

Z_—~

Presoider

eal

ee

Fig.

10

b.

Press

the

part

downward

with

tweezers

and

solder

both

electrodes

as

shown

below.

uv

Wweezers

Glia

Soldering

tron

~——

Solder

Fig.

11

Note:

Do

not

glue

the

replacement

leadiess

component

to

the

circuit

board.

R.

How

to

remove

/

install

the

Flat

Pack

IC

1.

How

to

remove

the

Flat

Pack

IC

(with

Hot

Air

Flat

Pack

IC

Desoldering

Equipment)

(FOR

EXAMPLE)

Fig.

12

(1)

Prepare

the

Hot

Air.

Fiat

Pack

IC

DESOLDERING

EQUIPMENT.

And

then

apply

hot

air

to

Flat

Pack

IC

about

5~8

seconds,

(2)

Remove

the

Flat

Pack

IC

with

tweezers

while

applying

the

hot

air.

CAUTION

:

1.

Do

not

supply

the

hot

air

to

the

chip

parts

around

the

Fiat

Pack

IC

for

tong

time

as

damage

may

occur

to

the

chip

parts

around

the

Flat

Pack

iC.

Hot

Air

Flat

Pack

IC

C.B.A.

a

Desoldering

og

Equipment

Masking

Sa

Tape

q

Tweezers——"

Flat

Pack

IC

Fig.

13

Put

Masking

Tape

around

the

Flat

Pack

!C

to

protect

adjacent

parts.

2.

The

Flat

Pack

IC

on

the

P.C.B.

is

affixed

with

glue,

so

be

careful

so as

not

to

break

or

damage

any

foil

under

the

iC

or

at

each

pin

when

removing

it.

(with

Soldering

tron)

(1)

Use

desoldering

braid

to

remove

the

soider

from

all

pins

of

the

Flat

Pack

IC.

Use

solder

flux

applied

to

all

pins

of

the

Flat

Pack

IC

to

allow

easy

removal.

Desidering

FlatPackic

Braid

Soldering

Iron

Fig.

14

(2)

Lift

each

lead

of

the

Flat

Pack

IC

upward

one

by

one

using

a

sharp

pin

or

non

solder

wire

(iron

wire),

while

heating

the

pins

using

a

fine

tip

soldering

iron

or

a

hot

air

blower.

Soldering

tron

Fig.

15

{with

tron

Wire)

(1)

Use

desoidering

braid

to

remove

the

solider

trom

ait

pins

of

the

Flat

Pack

IC.

Use

solder

flux

applied

to

al!

pins

of

the

Flat

Pack

IC

to

allow

easy

removal.

{2)

Affix

the

wire

to

workbench

or

solid

mounting

point

as

shown

in

Fig.

16.

{3)

Pull

up

wire

as

the

solder

melts

so

as

to

lift

the

IC

lead

from

the

P.C.B.

contact

pad,

while

heating

the

pins

using

a

fine

tip

soldering

iron

or

hot

air

blower.

Hot

Air

Blower

Solid

Mounting

Point

Se

tron

Wire

~——

Of

Soldering

Iron

Pull

up

gently

to

remove

Fig.

16

Note:

When

using

a

soldering

iron

care

must

be

taken

to

ensure

that

the

Flat

Pack

IC

is

not

being

held

by

giue

or

the

P.C.B.

may

be

damaged

if

force

is

used.

If

glue

is

holding

the

IC,

then

heat

the

IC

with

hot

air

to

loosen

the

glue.

2.

How

to

install

the

Flat

Pack

IC

(1)

Use

desoldering

braid

to

remove

the

solder

from

the

foil

of

each

pin

of

the

Flat

Pack

IC

on

the

P.C.B.

so

you

can

install

a

replacement

Fiat

Pack

IC

more

easily.

(2)

The

”

@

"

mark

on

the

Flat

Pack

IC

indicates

pin

1.

(See

Fig.

17)

Make

sure

this

mark

matches

the

1

on

the

P.C.8.

when

positioning

for

installation.

Then

pre-soider

the

four

corners

of

the

Fiat

Pack

IC

(See

Fig.

18)

“Example”

Pin

1

of

the

Flat

Pack

IC

is

indicated

bya

"@"

mark.

Fig.

17

Soldering

tron

Presoider

Fiat

Pack

IC

Fig.

18

(3)

Solder

all

pins

of

the

Flat

Pack

IC.

Make

sure

that

none

of

the

pins

have

solder

bridges

between

Pins

on

the

Flat

Pack

IC.

S.

Special

Note

All

integrated

circuits

and

many

other

semiconductor

de-

vices

are

electrostatically

sensitive

and

therefore

require

special

handling

techniques

described

under

the

“ELEC-

TROSTATICALLY

SENSITIVE

(ES)

DEVICES”

section

of

this

service

manual.

T.

Voltage

Measurement

1.

Voltage

Chart

a.

Color

bar

signal

in

SP

mode.

b.

----:Unmeasurable

or

unnecessary

to

measure,

2.

Schematic

Diagram

a.

Audio

Section

monoscope

signal

in

PB

mode.

b.

Other

Sections

color

bar

signal

in

PB

mode.

Note:

Voltage

Indications

for

PB

mode

on

Schematic

are

as

shown

below.

2.5

PB

mode

-13-

U.

How

to

Read

Waveform

=,

©

Connecting

Font

“~@

D

vons/Niv

@

Volis/Ow

@

Connecting

Paint

©

Tine/Div

@

Trigger

Channel

of

ine

scope

(1:

UPPER,

2:

LOWER,

@

Operation

Moge

of

VCR

@

Wavetorm

Paint

on

Schematic

m—®

@

AV}:

Peak

to

Peak.

V.

Indication

for

Zener

Voltage

of

Zener

Diodes

The

Zener

Voltage

of

Zener

Diodes

are

indicated

as

such

on

schematic

Diagrams.

Example:

(6.2V)...Zener

Voltage

W.

“©”

Marks

on

C.B.A.

layout

indicate

“©”

indicates

the

connection

gaint

between

the

Foil

Side

and

the

Component

Side

the

C.B.A.

X.

How

to

identify

Connectors

on

Schematic

Diagram

Each

connector

is

labeled

with

a

connector

No.

and

Pin

Nc.

indicating

what

it

is

connected

to,

in

other

words,

its

counter

part.

Connections

between

large

P.C.B.’s

and

small

circuit

Boards

are

illustrated

on

the

large

P.C.B.

schematics,

Use

the

interconnaction

schematic

diagram

to

find

the

connections

between

associated

connectors.

Example:

The

connections

between

C.B.A.s

are

as

shown

below.

MAIN

C.B.A.

(TO

HEAD

AMP

ASS'Y)

(P3001-1

P3501

11]

|

P3001-2§P3s01-1

|

C.B.A.

to

which

[

P3007

-

3]

1Pa501-9

|

this

connector

is

P3001-4

1P3501-4

|

connected.

|

F

|

Connector

No.

Connector

No.

and

Pin

No.

to

and

Pin

No.

on

which

connector

on

the

left

is

Main

C.B.A.

connected.

B.

Mechanischer

Abgleich

B.

Mechanical

Adjustment

Procedure

Second

Shieid

J

Sheet

1.

DISASSEMBLY

OF

CABINET

PARTS

1.

DISASSEMBLY

FLOW

CHART

2.

DISASSEMBLY

METIIOD

This

flow

chart

indicates

the

disassembly

steps

of

the

cabinet

parts

and

the

P.C.

Boards

in

order

to

gain

access

to

REMOVAL

item(s)

to

be

serviced.

When

reassembling,

perform

the

slep(s)

in

the

reverse

order.

Bend,

roule

and

dress

the

Fiat

REMOVE

Cables

as

they

were

originally.

%*

UNLOCK/RELEASE/

, .

UNPLUG/UNCLAMP/

UNSOLDER

@

Top

Cover

2(S-

1)

Clam

@

Top

Cover

@®

Front

Panel

Ass'y

@

Operation

|

and

®

Main

C.B.A

NC.B.A.s

*

P4201,

*

P6002,

(S-

2)

3(S-

3),

5(S-

4),

@

Main

C.B.A.

*

P7551

Fig.

DS

4(S-5),

Shield

Sheet,

(S-

6),

(S-7),

(W-

1),

Connectors,

Clamper

®

Power

Supply

ASS'Y

and

Jack

C.B.A.

*

P1301,

(S-

8),

2(S-8),

*

P1001

(S-

10),

(S-

11),

P.C.B.

Angle-

R,

3(S-

12),

*

(L-1)

@

Mchanism

Chassis

Screw

Covers,

2(S-

13),

2(S-

14),

{S-

15)

Mechanical

Chassis

Fig.

D1

List

of

Abbreviations

:

2(S-

1)=2

Screws

(S-

1)

(L-

1)=Locking

Tab

(L-

1)

(W-

1)=Washer

(W-

1)

G)

Jack

C.B.A.

Unit

©

Power

Supply

Ass'y

Front

Panel

Ass'y

Fig.

D4

Fig.

D6

Cassette

Up

Unit

@

Machanical

Chassis

Screw

Covers

Fig.

D7

Reference

<Note>

In

Table

2:

1.

When

reinstalling

the

Cassette

Up

Unit,

take

care

so

as

not

to

place

the

Position

Detect

Switch

of

the

Cassette

Up

Unit

onto

the

Switch

Cam

Gear.

2.1)

pase

lift

the

Mechanical

Chassis

from

the

Bottom

ase.

2)

When

handling

Mechanical

Chassis,

do

not

touch

mechanical

parts

on

it.

CAUTION

:

When

reinstalling

the

Mechanical

Chassis,

at

first,

position

the

left

and

right

rear

corners

of

the

Chassis,

then

position

other

corner.

2.

PROCEDURE

FOR

CLEANING

UPPER

CYLINDER

UNIT

1.

Position

the

Video

Head

to

permit

access

for

cleaning,

and

hold

the

Upper

Cytinder

to

keep

it

from

turning

while

cleaning.

2.

Gently

rub

the

Video

Heads

in

the

direction

of

tape

travel

with

a

Head

Cleaning

Stick

(8

619

497

813)

moistened

with

Isopropy!

Alcohol

91

%.

3.

Repeat

for

the

other

Video

Heads.

CAUTION:

All

Isopropyl

Aicohol

91%

must

be

removed

from

the

tape

path

after

cleaning

by

using

a

dry

Head

Cleaning

Stick

or

tape

damage

will

occur.

fi

Lae

Cylinder

SJ

ideo

Head

Cleaning

Stick

(8

619

497

813)

Fig.

M1

Note:

1.

Do

not

rub

vertically.

2.

Do

not

apply

any

pressure

to

the

head.

If

contaminant

Is

not

easily

removed,

continued

gentle

wiping

will

usually

remove

it.

3.

Clean

the

Cylinder

surface

with

Isopropyl

Atcoho!

91%

if

fingerprints

are

present

after

cleaning

the

Video

Head.

See

Caution

above.

3.

ADJUSTMENT

PROCEDURES

1.

REPLACEMENT

OF

UPPER

CYLINDER

UNIT

1-1.

REMOVAL

OF

UPPER

CYLINDER

UNIT

Work

with

extreme

care

when

removing

or

replacing

the

Upper

Cylinder

Unit.

Do

not

touch

Video

Heads

during

servicing.

1.

Unsolder

only

the

Lead

Pins

which

are

Indicated

by

*t

t

’

marks

as

shown

in

Fig.

M2.

2.

Remove

2

Screws

with

Washers

(A)

and

gentty

lift

the

Upper

Cylinder

Unit

from

the

shaft.

oe

ae

Screws

with

Washers

{A}

6

Lead

Pins

(AR.

2L,

6R)}

6

Lead

Pins

(6L.

2R,

AL)

Fig.

M2

1-2.

CLEANING

OF

D.D.

CYLINDER

SHAFT

AND

THE

SURFACE

.

Before

reinstalling

a

new

unit,

clean

the

D.D.

Cylinder

Shaft

and

the

surface

that

engages

with

the

Upper

Cylinder

with

a

soft

cloth

dampened

with

isopropyl

Alcohol

91%

in

Fig.

M3.

See

Caution

under

2.

Procedure

tor

Cleaning

Upper

Cylinder

Unit.

1-3.

REPLACEMENT

OF

UPPER

CYLINDER

UNIT

1.

Install

the

new

Upper

Cylinder

Unit

carefully

so

that

the

Lead

Pins

are

properly

matched

on

the

Head

Relay

Board.

For

details

on

the

installation

position,

reter

to

Fig.

M4.

Note:

1.

install

the

Lead

Pins

with

extreme

care

so as

not

to

damage

them.

install

the

Upper

Cylinder

so

that

the

color

of

the

P.C.B.

on

the

Upper

Cylinder

matches

the

color

of

the

P.C.B.

on

the

D.D.

Cylinder

(White

to

White,

Green

to

Green)

(indicated

by

‘+

T°

Marks)

Holes

for

6

Lead

Pins

(AR,

2L.

6R)

Upper

Cylinder

Holes

for

6 Lead

Pins

(6L,

2R.

AL)

(Indicated

by

‘ft

T°

Marks)

6

Lead

Pins

D.D.

Cylinder

Fig.

M4

2.

Tighten

2

Screws

with

Washers

(A)

shown

in

Fig.

M2

and

resolder

the

Lead

Pins

to

the

Head

Relay

Board.

3.Clean

the

Upper

Cylinder

with

a

deerskin

swab

(Cleaning

Stick)

saturated

with

Isopropyl

Alcohol

91%.

See

Caution

under

2.

Procedure

for

Cleaning

Upper

Cylinder

Unit.

Note:

Upon

completion

of

reptacement,

confirm

performance.

'f

required,

perform

“TAPE

INTERCHANGEABILITY

ADJUSTMENT",

especially

“HORIZONTAL

POSITION

ADJUSTMENT

OF

AYC

HEAD”.

=48:-

2.REPLACEMENT

OF

D.D.

CYLINDER

UNIT

Work

with

extreme

care

when

removing

or

feplacing

the

D.D.

Cylinder

Unit.

Do

not

toucn

Video

Head

during

servicing.

1.

Remove

the

Mechanical

Chassis

tram

the

Bottom

Case.

2.

Place

the

Unit

up

side

down.

3.

Remove

Black

Screw

(A)

and

the

Grounding

Plate.

4.

Disconnect

Connectors

P3501

on

the

Main

C.B.A.

and

P1502

on

the

D.D.

Cylinder

Unit.

5.

Remove

3

Screws

(B)

and

then

iitt

the

D.0.

Cylinder

Unit

stowly

from

the

top

side.

Black

Screw

{A}

Grounding

Plate

Bottom

View

Bottom

View

Fig.

M5

~

2

Note

:

Since

there

is

very

jittle

clearance

between

D.0D.

Cylinder

Unit

and

chassis,

remove

the

D.D.

Cylinder

Unit

gently

and

carefully.

8.

Reinstall

the

new

D.D.

Cylinder

Unit

on

the

chassis

by

reversing

the

procedure

previously

described.

Note:

1.

Reinstall

the

new

0.D.

Cylinder

Unit

so

that

the

2

projections

on

the

chassis

meet

the

2

holes

on

lower

surface

of

the

D.D.

Cylinder.

Then

fit

the

new

D.D.

Cylinder

Unit

to

the

chassis

by

turning

it,

refer

to

Fig.

M5

-~

3.

Hoid

the

D.D.

Cylinder

with

extreme

care

so

as

not

to

touch

the

Heads

or

the

tape

path

on

the

Cylinder.

If

they

are

touched

then

clean

it

with

a

deerskin

swab

(Cleaning

Stick)

saturated

with

Isopro-

pyl

Alcohol

91%.

See

Caution

under

2.

Procedure

for

Cleaning

Upper

Cylinder

Unit.

Turn

clockwise

while

looking

at

it

from

the

Bottom

Side

Fig.

MS

-

3

2.

Upon

completion

of

replacement

procedure,

confirm

pertormance.

ff

any

further

maintance

is

required,

perform

"TAPE

INTERCHANGEASILITY”

with

the

alignment

tape

(8

627

000

540).

3.

Adjustment

of

the

Grounding

Plate

Is

required

after

installation.

Refer

to

tem

3.

3.

CONFIRMATION

OF

GROUNDING

PLATE

INSTALLATION

POSITION

Purpose

:

To

optimize

the

position

of

Grounding

Piate.

Symptom

of

Misadjustment

:

May

cause

Cylinder

rotating

buzz.

4.

Remove

the

Mechanical

Chassis

from

the

Bottom

Case.

2.

Stand

the

Mechanical

Chassis

with

left

side

down.

3.

Check

to

see

If

the

Grounding

Piate

is

properly

set

in

a

position

just

less

than

imm

(but

not

more

than

1mm)

as

measured

from

the

center

of

the

plate

to

the

center

of

the

Cylinder

Shaft

as

shown

in

Fig.

M6.

If

required,

adjust

the

Grounding

Plate

position

by

loosening

Black

Screw

(A).

Note:

Never

install

the

Grounding

Plate

in

the

opposite

position

{on

the

front

side

of

the

center

of

the

Cylinder

Shaft),

but

always

within

a

maximum

of

1mm

to

the

rear

side

of

the

center

of

this

shaft.

Black

Screw

(A}—,

Grounding

Plate

Rotating

Direction

Center

4.

POSITION

ADJUSTMENT

OF

TENSION

POST

(PRELIMINARY)

Purpose

:

To

feed

a

constant

tension

to

the

tape

so

that

tape

runs

with

stability,

by

performing

a

preliminary

adjustment.

Symptom

of

Misadjustment

:

1)

If

the

adjusted

value

is

below

the

specification,

the

tape

tension

is

not

sufficient,

thus

causing

a

tape

slack

to

occur.

2)

if

the

adjusted

value

is

above

the

specification,

the

tape

tension

is

too

high,

thus

causing

tape

damage

to

occur,

*

Equipment

Required

:

2MM

Hex.

Wrench

--rerseersserereeeeeeeees

(Purchase

Locally)

1,

Remove

the

Cassette

Up

Unit.

2.Connect

TP6001

and

GND

on

the

System

Control

Section

of

the

Main

C.B.A.

through

a

jumper

wire.

3.

Push

the

PLAY

button

to

complete

foading

operation

sequence.

4.

As

soon

as

loading

is

completed,

disconnect

the

AC

plug.

5.

Insert

the

Hex.

Wrench

(2mm)

into

the

nut

on

the

Tension

Band

Fastener

and

adjust

it

(only

counter-

clockwise)

as

indicated

by

the

arrow

so

that

the

outside

edge

of

the

Tension

Post

lines

up

with

the

outside

of

the

P1

Post

as

shown

in

Fig.

M7

(as

viewed

looking

down

the

+

edge

of

the

Cassette

Side

Plate

(L)

Unit).

6.

Remove

the

Hex.

Wrench

(2mm),

and

the

jumper

{TP6001

-—

GND),

plug

in

AC

Cord,

then

complete

unloading

operation

sequence,

-19-