Bang-olufsen Beocord v8000 User manual

BeoCord

V8000

Type

4601,

4605,

4606,

4609

Service

Manual

English,

German,

French

CONTENTS

Survey

of

modules

..

=

Specification

guidelines

for

service

use

Brief

operation

guide

.

Diagrams

etc...

Explanation

of

diagram

Circuit

diagram

symbols

2-1

Wiring

diagram...

2-4

Block

diagrams

.

2-5

-

2-6

Diagrams.....

List

of

electrical

parts

3

List

of

mechanical

parts

4

Adjustments

and

repair

tips

..

5

English

German

French

Electrical

adjustments

5-1

5-34 5-68

Mechanical

adjustments

5-7

5-40

5-74

Repair

tips

5-10

5-43

5-77

Circuit

description

5-30

5-64

5-100

Dismantling

6

Insulation

test

BANG

&

OLUFSEN

SURVEY

OF

MODUL

1-1

SURVEY

OF

MODUL

1-1

64

Mother

Board

...diagr.

C,

D,

E,

F,

G,

H

page

2-15

-

2-20

65

Input

/

Output

.....

.

diagr.

1,

J

page

2-21

-

2-22

66

AV

sockets...

..diagr.

M

page

2-29

67

Teletext

.diagr.

K

page

2-25

68

Transcoder

...

.

diagr.

L

page

2-27

69

Power

Supply

.diagr.

A

page

2-8

70

Interface

..

71

Front

processor......

73

Display

and

Control

..

seen

Giagr.

N

page

2-30

74

Front

End

B/G

..

diagr.

B

page

2-9

74

Front

End

Multi

...

iagr.

B

page

2-12

95

Tape

Deck

complete

SPECIFICATION

GUIDELINES

1-2

SPECIFICATION

GUIDELINES

BANG

&

OLUFSEN

SPECIFICATION

GUIDELINES

FOR

SERVICE

USE

BeoCord

V8000

AUDIO

L

(WHITE)

/

R

(RED)

Audio

in

0.1V

RMS

to

2V

RMS

>

100kQ

Cassette

format

VHS

CTV

system

*

See

type

survey

Cabinet

finish

White,

Grey.

High-gloss

lacquer:

Pearly

black,

Pearly

green,

Pearly

red,

Pearly

blue,

Pearly

grey

Type

4606

Pearly

black

only

Remote

control

via

Beovision

Beo4

or

BeoLink

1000

remote

control

Tuner:

Tuner range

45-855MHz:

VHF,

S,

Hyper,

UHF

Number

of

TV

programmes

99

Play

channels

(Modulator)

471-855MHz

(default

599MHz):

UHF

Picture

function:

Max.

playing

time

video

SP,

4

hours,

LP,

8

hours,

€-240.

NTSC:

SP, LP,

EP

Max.

playing

time

audio

LP,

8

hours,

E-240

Playback

tapes

recorded

in

NTSC

3.58MHz

and

NTSC

4.43MHz

in

HiFi

stereo

sound.

|

S-VHS

(VHS

quality)

Fast

forward

and

rewind

Approx.

95

sec.

E-180

Slow

motion

foreward

and

reverse

1/2,

1/12

x

normal

speed

Still

picture

Noiseless

Search

(cue)

foreward

and

reverse

PAL/SECAM:

5

x

and

11

x

normal

speed

NTSC:

5

x

and

7

x

normal

speed

Counter

Track

marker,

time

left,

time

used

Recording

system

HQ

Rotating

tape

heads

2

SP

video,

2

LP

video,

2

Hi-Fi

sound

Signal-to

noise-ratio

luminance

(SP

mode)

>

4803

Signal-to

noise-ratio

chrominance

(SP

mode)

2

38dB

(AM),

2

31dB

(PM)

Sound

video

tape:

Sound,

compatible

Hi

Stereo

Hi-Fi/mono

fixed

head

Stereo

decoder

=

-

__*Nicam/A2

Frequency

range

20-20,000Hz

+/-3dB

Distortion

(Hi-Fi

mode)

<1%

VIDEO

IN

(YELLOW)

Video

in

1V,,

+/-

3dB

75Q

AV

&

V.TAPE

DECODER

1

Audio

R,,,

400mV

RMS

+1dB

<

1k

2

Audio

R,,

0.2V

RMS

to

2V

RMS

>

10k

3

Audio

L

out

400mV

RMS

+108

<

1k

4

Audio

ground

5

Blue

ground

6

Audio

L

in

0.2V

RMS

to

2V

RMS

>

10k

Pin?*

Blue

0.7V,,

750

8 Data

in/out

(AY)

Play

voltage:LogicO=Oto2V.

(4:3)

_

ae

Logic

1

=

9.5V

to

12V

(4:3)

=

Ry,

=

1k2

(43)

R,,

2

10k

~

(43)

4.5V

to

7VR,,,

<

1kQ

(16:9)

Pin8

Piay

voltage,

input

only

(TAPE

<2V

R,

>

10k

i

43)

DECODER)

=9.5V

R,>10k2

(43)

4.5V

to

7VR,,,

<

1kO

(16:9)

Ping

Green

ground

_

“Pin

10

Not

used

3%,

_Pint1*

Green

0.7V,,

758

.

12

Not

used

Pin13

Red

ground

14

Blanking

ground

15*

Red

0.7V,,

750

;

=a

16"

Blanking

=

~~

Logic

0

=

0

to

0.4V

=

Logic

1

= 1

to

3V

a

oe

-

“

17

Video

out

ground

18

Vdeo

in

ground

19

Composite

video

out

1V,,

+1/-2

dB

750

7

20

Composite

video

in

1V,,

+3/-3

dB

750

Signal-to-noise

ratio

>

63dB

(A-weighted)

Power

supply:

Mains

voltage

180-240

volts/SOHz

Power

consumption/minimum

Type

4601

and

4609

22

watts/2.1

watts

*

=

not

used

on

V.TAPE

DECODER

Subject

to

change

without

notice

Type

4605

and

4606

24

watts/2.1

watts

Dimensions:

WxHxD

38

x

9.7(incl.

feet)

x

28

cm

Weight

4.3kg

~

‘

—

Various:

Quickloading

Yes

Subtitles

from

Teletext

in

colours

‘

=

On

screen

display

Yes

Synchronous

Program

Recording

~VPS/PDC

Head

cleaning

___

Automatic

Timer

recording

8,

1

year

*TYPE

SURVEY

Modification

to

other

TV

transmission

systems

Type

System

Colour

NICAM

PAUSECAM

SYSTEM

B/G

é

4601

B/G

PAL

Eu

B/G

8005650

?

4605

B/G/LIL'/

PAUSECAM

F(GB)

—_—BIG/L/I

4606

BIG/DIK

PALISECAM

East

EU

_B/G/D/K

4609 /D/K

PAL

GB

I

1)

The

values

in

the

“VARIANT

SETUP”

must

be

changed

(see

section

5

Service

mode).

8005650

Transcoder

PCB

BANG

&

OLUFSEN

BRIEF

OPERATION

GUIDE

1-3

BRIEF

OPERATION

GUIDE

1-3

BRIEF

OPERATHON

GUIDE

Customizing

the

Beo4

For

this

operation

guide

the

VTR

is

connected

to

a

MX

4000/6000/7000

or

Enables

you

to

pre-program

the

Beo4

to

match

any

Bang

&

Olufsen

LX

50000/6000

TV.

For

operation

a

Beo4

remote

control

is

used.

If

a

system.

Remove

not

relevant

functions

(cues),

and

add

functions

you

want

BeoLink

1000

remote

control

is

used

a

setup

in

service

mode

has

to

be

to

appear

when

pressing

LIST

in

daily

use.

changed.

Beo4

display

MEO

and

hold

Then

press

shortly

CONFIG?

Select

function

(toggle)

ADD

or

REMOVE

(or

OPTION?)

Playback

Operation

Starts

the

VTR

and

plays

the

tape

Calls

up

the

listof

cues

REPEAT

or

FORMAT

GD

lays

the

tape

instantly

Toggle

through

cues

ED

"1a

the

Press

to

add/remove

cue

Removed

cues

blinks

rer:

é

(off

=

ADD

cue)

EMD

las

the

current

track

from

the

beginning;

press

twice

to

play

the

Press

for

Plays

the

tape

from

a

specific

position

(time

used

or

time

\

S

E

u

To

leave

add/remove

setup

MRECCieft)

e.g.

2:15

Keo

‘

_

wes

<YElow>

Cues

forward

through

the

tape,

press

again

to

accelerate

<CGREEN

>

Cues

backwards

through

the

tape,

press

again

to

accelerate

CBWE

>

Plays

the

tape

in

slow

motion,

press

again

to

accelerate

BLUES?

RED_

>

Plays

the

tape

backwards

in

slow

motion,

press

again

to

accelerate

xD

Fast

forward

mode

ED

fast

rewind

mode

Still

picture,

press

twice

to

enter

stop

mode

Resumes

playing

at

any

time

2

Menu

Operation

rF

>»

Y

or

Enters

the

menu

for

V.Tape

(this

menu

is

not

available

on

ED

Reveals

the

options

available

for

an

item

all

TV's.

If

this

is

the

case,

press

to

or

Notes:

then

enter

the

V

Tape

main

menu

directly)

20>}

1.

Only

in

PAUSECAM

variants

EMD

Select

the

“V.Tape

menu”

line

through

ok

,

2.

AUTO

=

setting

a

track

marker

each

Key

in

information

time

a

recording

is

started

Enters

the

V

Tape

main

menu

ED

Vovess

the

cursor

(red

line)

up

or

down

Stores

all

the

informations

in

a

menu

av

Set

or

clear,

srack

markers

curing

play

Back:

and

4,

Adjustment

of

modulator

frequency

<z=a@D>

Moves

to

the

without

storing

any

new

then

information

GO

Moves

to

the

selected

menu

Leaves

the

menus

2-1

EXPLANATION

OF

DIAGRAM

=

2-1

CIRCUIT

DIAGRAM

SYMBOLS

BANG

&

OLUFSEN

EXPLANATION

OF

DIAGRAM

Position

nos.for

the

components

Note

on

the

components

Connections

from

one

diagram

to

another

MEASURING

CONDITIONS

Symbol

of

safety

components

AN

Lithium

battery

1XXX

Crystals,

filters,

fuses,

connectors

etc.

2XXX

Capacitors

3XXX/_

Resistors

AXXX

5XXX_

Coils,

transformers

and

the

like

6XXX_

Diodes

7XXX_—

Transistors

and

IC’s

Components

marked

with

the

letter

“X”

means

that

the

component

is

planned

to

be

fitted.

Components

marked

with

the

letter

“Y"

means

that

the

component

is

used

only

in

certain

variants.

Example:

[DGR.F

(D1)

|

VS

2495!

DGR.F

(D1)|

=

The

other

end

of

the

wire

is

to

be

found

on

DIAGRAM

F

in

coordinate

no.

D1.

VS

2495

=

The

wire

in

coordinate

D1

is

going

to

capacitor

2495

in

the

Video/Chroma

circuits

on

DIAGRAM

F.

The

DC

voltages

and

oscillograms

are

measured

in

relation

to

ground.

The

DC

voltages

and

oscollograms

are

measured

in

RECORD

or

PLAY

mode,

with

a

colour

bar

signal

and

a

picture

carrier

at

503.25

MHz

(CH

25).

When

replacing

components

with

this

symbol,

components

with

identical

part

numbers

must

be

used.

The

new

component

must

be

mounted

in

the

same

way

as

the

one

replaced.

WARNING

Short-circuit

and

overcharging

of

some

types

of

lithium

batteries

may

result

in

a

violent

explosion.

When

replacing

the

lithium

battery

in

this

set,

note

the

following:

Use

only

batteries

at

the

same

make

and

type

as

mentioned

in

this

service

manual

(see

page

3-4).

Place

the

battery

exactly

like

the

old

one.

ADVARSEL

LITHIUMBATTERI

-

EKSPLOSIONSFARE

UDSKIFTNING

MA

KUN

FORETAGES

AF EN

SAGKYNDIG

0G

SOM

SESKREVET

|

SERVICE

MANUAL,

WARNING

|

LITHIUM

BATTERY

-

RISK

OF

EXPLOSION

‘TO

BE

REPLACED

BY

QUALIFIED

SERVICEMAN

ONLY

‘AND

AS

DESCRIBED

IN

THE

MANUAL

Circuit

diagram

symbols

Circuit

diagram

symbols

for

video

signals,

chroma

signals

and

status

commands.

Various

signals

on

one

lead:

Record

BD.

I/II

switch-over

eam

Playback

D

TAME

1.1

MHz

Signal

(SECAM)

ves]

Aspect

ratio

16:9

2Fgc]

Double

subcarrier

frequency

we]

Aspect

ratio

4:3

WL]

Oplocoupler

pulses

[]]

Frame

carers]

627 KHz

Signal

(PAL)

Chassis

Reference

potential

Seperate

chassis

connection

Switching

voltage

for

record

ARG]

Voltage

dependent

on

the

selected

frequency

Control

voltage

for

MENU

signal

bar

7100008

at]

AM/FM

switch

over

aa

==]

Automatic

Tuning

Search

Level

Ae

Status

f.

auto

SECAM

switchover

Zura

|

Autom.

SECAM-EAST

identification

AV

switching

voltage

Status

for

the

switching

voltage

onAV-I

Evaluation

of

an

external

switching

voltage

Switching

voltage

on

AV-|

(dependent

on

the

evaluation

of

U-AV.II)

Blue

BD.

III

switch-over

Burst

Key

pulse.

Signal

Blanking

CVS

BLANK

qe

Sutching

Sa

with

DOS

or

OSD

superimposed

on

a

ud

BE

TP

ae].

Field

Memory

Status

Ear]

Sense

of

Rotation

CAM

|

Camera

cCvs

roan,

Selo

-

Video

-

Signal

CH

Chroma

signal

vu

oH

Chroma

envelope

(Video)

CLK

Clock

line

CLOCK

Gocws]

Clock

line

serial

interface

TZ]

Contol

vata,

capstan

motor

wPEE]

Black

White-Colour

Switching

Voltage

[fear]

Y/C

component

input

signal

Gonrw]

Controlled

FM

Commas}

Remote

Control

Data

via

the

CONTROL-S-socket

oe

|

[uf]

Canal

Plus

LCTL]

sync

pulse

[SYN]

[Fz]

Threshold

Voltage

Crispening

CV

status

CV/RF

switch-over

Video

signal

BANG

&

OLUFSEN

CIRCUIT

DIAGRAM

SYMBOLS

=

2-2

CIRCUIT

DIAGRAM

SYMBOLS

2-2

CVBS

signal

FBAS

Farb

-

Bild

-

Ausblank

-

Synchron

DATA

Data

line

bea

oe

Data

line

serial

interface

Dropout

attenuation

Dropout

Killer

Voltage

8

DOS-CCVS/picture

switch-over

:

Subtitle

Recording

=

EE

Drum

Stop

Status

DTL

Data

transfer

line

Edit-Controller

acknowledge

EC-BUSY

EC-CLK

Clock

from

Central-

to

Edit-Controller

Edit

Status

eo

Data

from

Central-

to

Edit-Controller

eorr2

ry

Loop

through

video

«

TPE]

_

Fast

blank

pulse

enable

FAL]

Fieldpulse

)

F

1)

Filament

F1/F2

Function

"ON"

status

FOT

Riga

|

Halt

line

frequency

Flying

erase

head

FM

picture

[7as]

FM

envelope

picture

FM

picture

identification

FSG]

Subcarrier

frequency

G

Green

oF

a

Line

insertion

Composite

-

Video

-

Baseband

-

Signal

tp

[REC

T

ub

Tick

Mx

SYN

ur]

FE

PLL

SYNC

Automatic

unthread

on

switch

off

RF/AV

switch.over

RF/CV-AV

switch-over

Chroma

head

switching

pulse

Video

head

switching

pulse

Control

voltage,

headwheel

motor

IFsignal

Coincidence

voltage

Longplay

switchover

Long/Economy-Play

Status

at

longplay

record

LP-trick

status.

Mixed

sync.

Status

NTSC.

NTSC-PAL

switch

over

Output

enable

PAL/NTSC

Pay

TV

switching

voltage

Playback

status

Playback

FM

Picture

Control

Picture

in

picture

Sync

pulse

from

HPLL

u

SAT-ID

[sat-MuT

se

SCK

SCL

uf

SF

SDA

[ap

Se

Rea

SECAM

Sl

SO

SP-HI

SP-OPT

Control

switching

during

picture

search

Red

RE

status

Record

status

Reset

pulse

RF

record

voltage

Read

out

clock

VHS/S-VHS

Switching

SAT

deviation

SAT

(Satellite)

Mute

identification

SAT

mute

Sand

castle

Serial

clock

line

°C

Bus

clock

line:

"Scrambler"

switching

voltage

FC

Bus

data

line

Status

SECAM

east

Status

SECAM

west

SECAM

Serial

data

input

Serial

data

output

Head

switching

pulse

for

freeze

frame

Freeze

frame

optimisation

Still

picture

S-VHS

Playback

Standard

switch

-

over

Data

Transfer

Pulse

ThA

Mensse

i

TS

is

TE

TUN,

o-wv

HE

uNe.FM

fioaal

V-SYNC

TEI

I

ve

“EP

VinEO

TRIV

mf

Wav

4

gy

wee

e/a

S-VHS

detection

voltage

FM

Envelope

Video

S-VHS.

Black/White-Switching

Voltage

SECAM

EAST/WEST

scanning

voltage

End

of

tape

Switching

voltage

for

testpattern

generator

Threading

Transcoder

mode

Start

of

tape

Tape

start/tape

end

detection

Tape

tension

voltage

Tuning

voltage

UHF

switch-over

Uncontrolled

FM

from

the

tape

Unthreading

Vertical

sync

pulse

or

inserted

V-pulse

V

insertion

Field

insertion

enable

VHF

switch

over

FM

Envelope

Video

VHS

FM-Envelope

Status

VPS/Teletext

Control

voltage

,

winding

motor

Video

WR

status

Y

insertion

2-3

CIRCUIT

DIAGRAM

SYMBOLS

=

2-3

CIRCUIT

DIAGRAM

SYMBOLS

BANG

&

OLUFSEN

Circuit

diagram

symbols

for

Audio

signals

Record

sensitivity,

left

channaal

Record

sensitivity,

right

channel

I

hy

iy

Meter

reading,analog

left

Meter

reading,

analog

right

And

2-channel

sound

status

Microphone

input

=)

playback

status

lw

Zero

adjustment

of

audio

indicator

8

GBE

Delayed

control

voltage

5

AGC

(Automatic

Gain

Control)

AGC

oe]

"Canal

plus"

signal

for

audio

wor]

Audio

signal,

left

moon]

Audiosignal,

right

AUDIO)

Audio

signal,

Mono

FF

‘Automatic/manuel

switch-over

"_cui|

Sound

channel

1,2

status

‘CHICHE

Channel

1

,channel

2,

Stereo

Control

input

select

switch

a

Dubbing

Sound

fade-in/fade-out

FAD

cua]

FM

sound

status

fi]

Audio

FM-signal

from

tape

rt

Fucs]

FM

sound

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2050

2052

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Bang-Olufsen BeoCord V8000 User manual

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