Bang & Olufsen Beomaster 4500, 3500 stereo receiver Service manual

~~
Bang ¿Olufsen
Modules
17
AM (LW/MW) ...........—.eservcevonocanoo
AM (MW) ............—..000rrererorucero
Amplifier & Power Supply
Microcomputer .............2.40200 0000000
IR Receiver .........-.w.onvranrronrorvamomerma
Operation panel ........os_eeerraereoonmeno
Socket Panel .......eos..r_enanceonanorensmoo
Riaa Amplifier ......... _e.eerenoanmmodernno
Transformer PCB ............2.22000 0000 ns
Led a sa ane nes au 000» diagr. B,C
page 2-3, 2-4
1-2
Bang & Olufsen
TECHNICAL SPECIFICATIONS
Long-term max. output power IEC
Harmonic distortion DIN/IEC
Power output 20-20,000 Hz IHF
Total harmonic distortion IHF
Dynamic headroom
Intermodulation IHF
2 x 55 watts/8 ohms
<0.08%
2 x 20 watts/8 ohms
<0.1% at 20 watts 20-20,000 Hz
1.6 dB/8 ohms
<0.1%
Response vs frequency:
Phono
Tape
Wideband damping factor
20-20,000 Hz +1.5 dB
20-20,000 Hz +1.5 dB
32
Input sensitivity/impedance:
Tape 1
Phono/ Tape 2
Tape 2/AUX
CD player
30 mV/100 kohms
30 mV/100 kohms
30 mV/100 kohms
30 mV/100 kohms
Signal-to-noise ratio:
Phono A-weighted >75 dB
Tape A-weighted >77 dB
CD A-weighted >77 dB
Channel separation 10,000 Hz >55 dB
Output:
Tape 500 mV/470 ohms
Headphones Max. 15 V/220 ohms
Bass control at 40 Hz +12 dB
Treble control at 12,500 Hz +12 dB
FM tuner section:
FM range
Type 2961, 2962, 2963, 2965 87.5-108.5 MHz
Type 2964 76-90 MHz
FM aerial impedance
75 ohms
Usable sensitivity mono
14 dBf-1.4 uV/75 ohms
Usable sensitivity stereo
19 dBf-2.5 uV/75 ohms
50 dB quieting sensitivity mono
19 dBf-2.5 uV/75 ohms
50 dB quieting sensitivity stereo
40 dBf-28 uV/75 ohms
Signal-to-noise ratio 65 dBf mono 75 dB
65 dBf stereo 70 dB
Frequency response 20-15,000 Hz +1 dB
Distortion at 65 dBf mono 0.3%
Distortion at 65 dBf stereo 0.3%
Intermodulation mono 0.1%
Intermodulation stereo 0.1%
Capture ratio 1.7 dB
Adjacent channel selectivity 10 dB
Alternate channel selectivity 70 dB
Spurious response 100 dB
Image response ratio 80 dB
IF response ratio 120 dB
AM suppression 57 dB
Stereo channel separation 40 dB
Subcarrier product rejection 70 dB
Bang &Olufsen
1-3
AM tuner section:
LW range Type 2961, 2962, 150-350 kHz
MW range Type 2961, 2962, 2963, 2964, 2965 520-1610 kHz
LW sensitivity 20 dB S/N ratio 80 pV
MW sensitivity 20 dB S/N ratio 60 uV
Power supply
Type 2961 220 V
Type 2962 240 V
Type 2963 120 V
Type 2964 100 V
Type 2965 240 V
Power frequency 50-60 Hz
Power consumption 10-135 watts
Dimensions WxHxD 62x7x25 cm
Weight 7 kg
Installationskit:
RIA amplifier (See PHONO OPTION page 1-5/1-6) 8002956
Subject to change without notice
Tilslutning af nettransformer/
Connection of Mains Transformer/
Anschluß von Netztransformator/
Branchement de transformateur secteur
[20V
220V
240V
|OOV
1-4
OPTIONS:
BEOMASTER 4500 I ET BEOLINKSYSTEM
Beolink-systemet kan stilles op pa to forskellige
mader alt efter brugsmenstre.
Situation 1:
Audio- og videosystemet placeret i nærheden af hin-
anden, sáledes at signalerne fra Beolink 1000 kan
opfanges af begge systemer samtidig.
Situation 2:
Audio- og videosystemet placeret langt fra hinanden,
f.eks. i forskellige rum, sáledes at signalerne fra
Beolink 1000 kun kan opfanges af et system ad
gangen.
Forprogrammering
Bade audio- og videoprodukterne i et Beolink-
system skal forprogrammeres i overensstemmelse
med den valgte opstilling. De skal anvende Beolink
1000 til at forprogrammere Beomaster 4500, som
skal veere i stand-by stilling.
Situation 1 (option 1):
Tryk [STORE].
OP 1.5 (eller OP 1.6) kommer frem pâ displayet,
som tegn pa at ordren er modtaget.
Situation 2 (option 2):
Tryk [STORE].
OP 2.5 (eller OP 2.6) kommer frem pá displayet,
som tegn pá at ordren er modtaget.
Beomaster 4500 kan ogsá forprogrammeres til optil-
linger i Master Control Link 2-systemet.
Hvis De placerer en MCL 2-enhed i nærheden af
Beomaster 4500 (Beolink-system, situation 2), skal
Beomaster 4500 stilles 1 option 3.
Hvis De placerer en MCL 2-enhed i samme rum
som audio- og videosystemet (Beolink-system, situa-
tion 1), skal Beomaster 4500 stilles i option 4.
Cifrene 5 og 6, som kommer frem pa displayet ved
siden af det valgte option-nummer (1-4), er specielle
options, som ogsâ gælder Master Control Link 2-
systemet. Option 5 angiver, at Beomaster 4500 er
‘master’ 1 MCL 2-systemet, og option 6 at Beomaster
4500 er ‘slave’ i MCL 2-systemet. Option 6 er til
fremtidig brug og ma ikke vælges.
For at vealge option 3 til 6, tryk [SOUND], det pagel-
dende nummer og derefter [STORE].
Nar Beomaster 4500 forlader fabrikken, star den 1
option 1.5.
Forskellige apparater kan sluttes til stikdáserne PH/
TP2 og AUX/TV. Hvis De f.eks. onsker at slutte en
sekundar bándoptager til AUX/TV-stikdásen, kan
De andre stikdisens indstilling i overensstemmelse
hermed. Beomaster 4500 skal vere i stand-by-stil-
ling, medens De gor det.
1. Tryk [PROGRAMMING] [7] samtidigt for at
se den aktuelle indstilling.
Bang &Olufsen
OPTIONS:
THE BEOMASTER 4500 IN A BEOLINK
SYSTEM
The Beolink system may be set up in two ways to
suit individual patterns of use.
Situation 1:
The audio and video systems are placed close to
each other so that the commands from the Beolink
1000 can be captured by both systems at a time.
Situation 2:
The audio and video systems are placed far apart,
e.g. in separate rooms, so that the commands from
the Beolink 1000 can be captured only by one
system at at time.
Pre-programming
Both the audio and video products in a Beolink
system must be pre-programmed according to the
chosen set-up. You must use the Beolink 1000 to
pre-program the Beomaster 4500, which must be in
stand-by mode during pre-programming.
Situation 1 (option 1):
Press [SOUND] [1] [STORE].
OP 1.5 (or OP 1.6) appears in the display confirming
that the commands have been received.
Situation 2 (option 2):
Press [SOUND] [2] [STORE].
OP 2.5 (or OP 2.6) appears in the display confirming
that the commands have been received.
The Beomaster 4500 can also be pre-programmed
for Master Control Link 2 system set-ups.
If you place an MCL 2 unit close to the Beomaster
(Beolink system, situation 2), the Beomaster 4500
must be set to option 3.
If you place an MCL 2 unit in the same room as the
audio and video systems (Beolink system, situation
1), the Beomaster 4500 must be set to option 4.
The digits 5 or 6 appearing in the display next to
the chosen option number (1-4) are special options
applying to the Master Control Link 2 system.
Option 5 indicates that the Beomaster 4500 is a
master in the MCL 2 system, and option 6 indicates
that the Beomaster 4500 is a slave in the MCL 2
system. Option 6 is for future use and must not be
selected.
To select options 3 to 6, press [SOUND], the appro-
priate number, then [STORE].
When the Beomaster 4500 leaves the factory, it is
set to option 1.5.
The sockets PH/TP2 and AUX/TV can be set to
accomodate different types of equipment. If for
example you want to connect a secondary tape
recorder to the AUX/TY socket, you simply change
the setting of the socket. The Beomaster 4500 must
be in stand-by mode while you are doing so.
Bang & Olufsen
Displayet viser OP, og det pâgældende
skilt TAPE 2, CD eller PHONO lyser.
2. Tryk [TAPEZ], eller efter
onske, for at vælge indstilling.
Маг Beomaster 4500 forlader fabrikken, er den ind-
stillet til TAPE 2. I stilling CD eller PHONO har De
folgende tilslutningsmuligheder:
PH/TP2 Option CD:
Tilslutning af Beogram 4500.
Option PHONO:
Tilslutning af en pladespiller uden
indbygget RIAA-forsterker. I dette
tilfeelde skal Beomaster 4500 forsynes
med en RIAA-forstærker (bestillingsnr.
8002956).
1-5
1. Press [PROGRAMMING] and [7] simulta-
neously to reveal the current option.
The display indicates OP, and the appro-
priate cue TAPE 2, CD or PHONO lights
up.
2. Press [TAPEZ], or as the case
may be, to select the option of your
choice.
When the Beomaster 4500 leaves the factory, it is
set to option TAPE 2. When set to option CD or
PHONO, the connection possibilities are:
PH/TP2 Option CD:
Connection of the Beogram 4500.
Option PHONO:
Connection of a record player without a
built-in RIAA pre-amplifier. In this case,
AUX/TV Options CD og PHONO: . the Beomaster 4500 must be provided
Tilslutning af et Beolink-kompatibelt , qe
| with a RIAA pre-amplifier (part no.
fiernsyn eller en Bang & Olufsen bandop-
tager 8002956).
AUX/TV Options CD and PHONO:
Connection of a Beolink compatible TV-
set or a Bang & Olufsen tape recorder.
WAHLMOGLICHKEIT: OPTION:
DER BEOMASTER 4500 ALS BESTANDTEIL LE BEOMASTER 4500 DANS UN SYSTEME
EINES BEOLINK-SYSTEMS BEOLINK
Das Beolink-System kann nach den individuellen
Benutzungsgewohnheiten auf zwei Arten installiert
werden.
Anordnung 1:
Audio- und Videosystem werden dicht beieinander
aufgestellt, so daß Befehle vom Beolink 1000 von
beiden Systemen gleichzeitig empfangen werden
können.
Anordnung 2:
Audio- und Videosystem werden voneinander
entfernt aufgestellt, z.B. in zwei verschiedenen
Räumen, do daß die Befehle vom Beolink 1000 nur
jeweils von einem System empfangen werden
können.
Vorprogrammierung
Sowohl das Hauptgerät des Audiosystems als auch
das des Videosystems in einem Beolink-System muß
je nach der gewählten Anordnung vorprogrammiert
werden. Für die Vorprogrammierung wird der
Beolink 1000 verwendet, der zu programmierende
Beomaster 4500 muß sich dazu in Betriebsbereitschaft
befinden.
Anordnung 1 (Wahlmöglichkeit 1):
[SOUND] [1] [STORE] driicken.
In der Anzeige erscheint als Bestätigung des
Empfangers der Befehle OP 1.5 (oder OP 1.6).
Anordnung 2 (Wahlmöglichkeit 2):
[SOUND] [2] [STORE].
In der Anzeige erscheint als Betätigung des
Empfangs der Befehle OP 2.5 (oder OP 2.6).
Le système Beolink peut être réglé de deux façons
s’adapter aux cas particuliers d'utilisation.
lère situation:
Les systèmes audio et vidéo sont placés à prozimité
l’un de l’autre, de sorte que les commandes de la
Beolink 1000 peuvent être captées par les deux
systèmes à la fois.
2ème situation
Les systèmes audio et vidéo sont éloignés l’un de
l’autre (dans des pièces différentes, par exemple), de
sorte que les commandes de la Beolink 1000 ne peu-
vent être captées que par un seul système à la fois.
Préprogrammation
Les unités centrales audio et vidéo d’un système
Beolink doivent toutes deux être préprogrammées
en fonction de l'installation adoptée. Vous devez
utiliser la Beolink 1000 pour préprogrammer le
Beomaster 4500, qui doit être en veille pendant cette
opération.
lère situation (option 1):
appuyez sur |SOUND] [1] et [STORE],
OP 1.5 (ou OP 1.6) s’affiche, confirmant la bonne
réception des commandes.
2eme situation (option 2):
appuyez sur et [STORE].
OP 2.5 (ou OP 2.6) s’affiche, confirmant ainsi la
bonne réception des commandes.
Le Beomaster 4500 peut également être prépro-
grammé pour des installations de système Master
Control Link 2.
1-6
Der Beomaster 4500 kann auch fiir Kombinationen
mit dem Master-Control-Link-2-System vorprogram-
miert werden.
Wird eine MCL-2-Einheit in der Náhe des
Beomaster 4500 aufgestellt (Beolink-System, Anord-
nung 2), mull der Beomaster 4500 auf die Wahlmó-
glichkeit Nr. 3 eingestellt werden.
Wird eine MCL-2-Einheit im gleichen Raum aufge-
stellt wie das Audio- und das Videosystem (Beolink-
System, Anordnung 1), muß der Beomaster 4500 auf
die Wahlmögglichkeit Nr. 4 eingestellt werden.
Die Dezimalstellen 5 oder 6, die in der Anzeige
hinter der gewählten Nummer (1-4) erscheinen,
beziehen sich speziell auf das Master-Control-Link-
2-System. Die Zahl 5 zeigt an, daß der Beomaster
4500 im MCL-2-System das Hauptgerät ist, die Zahl
6 zeigt an, daß der Beomaster 4500 im MCL-2-
System ein untergeordnetes Gerät ist, 6 ist aller-
dings für zukünftige Möglichkeiten gedacht und darf
nicht gewählt werden.
Zum Auswählen der Programmierungsmöglichkeiten
3-6 drücken, dann die entsprechende Zahl
und zuletzt [STORE].
Werkseitig ist der Beomaster 4500 auf 1.5 einge-
stellt.
Die Buchsen PH/TP2 und AUX/TV können für den
Anschluß verschiedener Gerätetypen eingestellt
werden. Wenn z.B. ein zweites Tonbandgerät an die
AUX/TV-Buchse angeschlossen werden soll, ändert
man die Einstellung dieser Buchse. Bei diesem
Vorgang muß sich der Beomaster 4500 in Betriebs-
bereitschaft befinden.
1. Gelichzeitig [PROGRAMMING] und
driicken, um die eingestellte Wahl ange-
zeigt zu bekommen. In der Anzeige
erschient OP, das entsprechende
Lampchen fiir TAPE 2, CD oder PHONO
leuchtet auf.
2. Durch Drücken von [TAPEZ], oder
die gewünschte Wahl treffen.
Werkseitig ist der Beomaster 4500 auf TAPE2
eingestellt. Die vorstehende Beschreibung der
Anschlußmöglichkeit bezieht sich auf diese Einstel-
lung. Bei der Einstellung auf CD oder PHONO -
ergeben sich folgende AnschluBmoglichkeiten:
PH/TP2 Wahl CD:
Anschluß des Beogram 4500 Plattenspie-
lers.
Wahl PHONO:
Anschluf eines Plattenspielers ohne
eingebauten RIA A-Vorverstárker; in
diesem Fall mu der Beomaster 4500 mit
einem RIA A-Vorverstárker (Best. Nr.
8002956) ausgeriistet werden.
Wahl CD und PHONO:
Anschluf eines Beolink-kompatiblen
Fernsehgerätes oder eines Bang &
Olufsen Kassettendecks.
AUX/TV
Bang &Olufsen
Si vous placez un appareil MCL2 à proximité du
Beomaster 4500 (système Beolink, 2ème situation),
le Beomaster 4500 doit être réglé sur l’option 3.
Si vous placez un appareil MCL2 dans la même
pièce que celle où se trouvent les systèmes audio et
vidéo (système Beolink, 1ère situation), le
Beomaster 4500 doit être réglé sur l’option 4.
Le chiffre 5 ou 6 qui apparaît à l’affichage à côté du
numéro de l’option choisie (1-4) constitue une
option spéciale qui s'applique au système Master
Control Link 2. L'option 5 indique que le Beomaster
4500 est l’élément principal dans le système MCL 2,
tandis que l’option 6 indique que le Beomaster est
un appareil assujetti dans le système MCL 2. L’op-
tion 6 est réservée à plus tard et ne doit pas être
sélectionnée.
Pour sélectionner les options 3 à 6, appuyez sur
SOUND], le numéro correct et [STORE] pour conclure.
Le Beomaster 4500 est réglé en usine sur l’option
1.5 |
Les prises PH/TP2 et AUX/TV peuvent être réglées
pour s'adapter à différents types d'appareils. Ainsi, si
vous souhaitez brancher un deuxième magnétocas-
sette à la prise AUX/TY, il vous suffit de changer le
réglage de la prise. Le Beomaster 4500 doit être en
veille pendant cette opération.
1. Appuyez simultanément sur
[PROGRAMMING] et sur [7] pour afficher
l’option en cours.
L'affichage indique OP et, selon le cas, le
message TAPE 2, CD ou PHONO s’illu-
mine. |
2. Appuyez sur [TAPEZ], ou [PHONO!] pour
sélectionner l’option désirée.
Le Beomaster 4500 est réglé en usine sur TAPE2.
Les possibilités de branchement prémentionnés
s’appliquent à cette option. Lorsque l’option est CD
ou PHONO, les possibilités de branchement sont les
suivantes:
PH/TP2 Option CD:
Branchement de la platine tourne-disque
Beogram 4500.
Option PHONO:
Branchement d’une platine sans préam-
plificateur RIAA intégré. Dans ce cas, le
Beomaster 4500 doit être équipé d’un
préamplificateur RIAA (pièce n°
8002956).
Options CD et PHONO:
Branchement d’un téléviseur compatible
Beolink ou d’un magnétocassette Bang &
Olufsen.
AUX/TV
Bang &Olufsen
DIAGRAMFORKLARING
Pá diagrammerne er der angivet typenumre pá tran-
sistorer og ICer. Hvis positionsnummeret er efter-
fulgt af en stjerne, skal reservedelsnummeret altid
benyttes, da denne komponent er specielt udvalgt,
f.eks. TR102*
Komponenttryk og koordinatsystem
De storste printplader er forsynet med kompo-
nenttryk og et koordinatsystem pa bade print- og
komponentside.
Pá diagrammerne er enhver komponent forsynet
med et koordinatnummer. Dette fortæller i hvilket
koordinat pá printpladen, komponenten er placeret.
Koordinatnumrene er angivet med mindre skrifttype
end positionsnumrene. -
Styrekredsleb
I visse styrekredsleb er den aktive tilstand angivet
med en funktions- eller bogstavsangivelse. Denne
kan eksempelvis være ST.BY.= »low« 1 stand-by-
stilling eller ST.BY. = »high« i stand-by-stilling.
Ledningsforbindelser
Ledningsforbindelserne pâ diagrammerne er samlet
i »bundter« De enkelte ledninger er forsynet med en
af folgende koder:
INTERN FORBINDELSE PÁ EN DIAGRAMSIDE
|
12 20
\
Interne forbindelser pä en diagramside angives med
et tal. Knaekket pd ledningen viser, i hvilken retning,
den anden ende af ledningen findes.
FORBINDELSE TIL EN ANDEN DIAGRAMSIDE
DIAGRAM A
| |
€ (32
\ N
Forbindelsen til en anden diagramside angives med
et tal samt et bogstav for det diagram, forbindelsen
gár til.
Forsyningsspandinger
Alle forsyningsspændinger i diagrammerne er
angivet med en pil og en spændingsangivelse.
Eksempel:
Ved siden af spændingsangivelsen stâr der f.eks.
7 CON. Dette betyder, at den pâgældende forsy-
ningsspanding gar til 7 steder pâ den pâgældende
diagramside (7 CON. = 7 connections).
1-7
EXPLANATION OF DIAGRAM
Type numbers of transistors and ICs are indicated
on the diagrams.
If the position number is followed by an asterisk the
spare part number must always be used because the
component in question has been specially selected,
e.g. TR102*
Component print and coordinate system
The largest PCBs have component prints and a
coordinate system on both the print and the
component side.
On the diagrams every component has a coordinate
number. This indicates in which coordinate on the
PCB the component is situated. The coordinate
numbers are written in smaller print types than the
position numbers.
Control Circuit
In certain control circuits the active mode is indi-
cated by a function term or by an abbreviation. This
may be e.g. ST.BY.= low in the stand-by mode or
ST.BY. = high in the stand-by mode.
Wiring Connections
The wiring connections on the diagrams are
assembled in ‘bundles’. The individual wires are
provided with one of the following codes:
INTERNAL CONNECTION ON ONE DIAGRAM
PAGE
Internal connections on a diagram page are indi-
cated by a number. The bend of the wire indicates in
which direction the other end of the wire is found.
CONNECTION TO ANOTHER DIAGRAM PAGE
DIAGRAM C
| |
A32 A3
/ /
т — — = — = = =
A connection to another diagram page is indicated
by a number as well as by a letter of the diagram to
which the connection leads.
Supply Voltages
All supply voltages in the diagrams are indicated by
an arrow and a voltage indication.
Example:
“7 CON.”. This means that the supply voltage in
question goes to 7 different places on the diagram
page in question (7 CON = 7 connections).
1-8
STELSYMBOLER
Der anvendes 3 forskellige stelsymboler i apparatet.
| = Stel
| = Signalstel
| = Chassis
MALEBETINGELSER
Alle DC-spandinger er malt i forhold til stel med et
voltmeter med en indgangsmodstand pa 10 Mohm.
DC-spandingerne er opgivet i volt (V), f.eks. 0,7 V.
SYMBOL FOR SIKKERHEDSKOMPONENTER
/N
Ved udskiftning af komponenter med dette symbol
skal der anvendes komponenter med samme reser-
vedelsnummer. Den nye komponent skal monteres
pä samme mäde som den udskiftede.
Bang & Olufsen
GROUND SYMBOLS
Three different ground symbols are used in the set.
| = Ground
} = Signal ground
| = Chassis
MEASURING CONDITIONS
All DC voltages have been measured in relation to
ground with a voltmeter with an input resistance of
10 Mohms.
The DC voltages are stated in volts (V), e.g. 0.7 V.
SYMBOL OF SAFETY COMPONENTS
/N
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.
ADVARSEL!
LITHIUMBAT TERI — EKSPLOSIONSFARE
UDSKIF TNING MA KUN FORETAGES AF EN SAGKYNDIG.
OG SOM BESKREVET 1 SERVICE MANUAL.
WARNING!
LITHIUM BATTERY — RISK OF EXPLOSION
TO BE REPLACED BY QUALIFIED SERVICEMAN ONLY
AND AS DESCRIBED IN THE SERVICE MANUAL.
ADVARSEL
Kortslutning og overopladning af visse typer
lithium-batterier kan medfore en voldsom eksplo-
sion.
Ved udskiftning af lithium-batteriet i dette apparat
skal felgende iagttages:
Der skal anvendes batteri af samme fabrikat og
type som angivet i denne service manual
(se side 3-5).
Batteriet skal monteres ngjagtigt som det originale
batteri.
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 of the same make and type as
mentioned in this service manual (see page 3-5).
Place the battery exactly like the old one.
Bang &Olufsen
ERLAUTERUNGEN ZUM SCHALTBILD
Auf den Schältbildern sind Typen-Nummern fiir
Transistoren und IC's angegeben.
Wenn auf die Positionsnummer ein Stern folgt, ist
die Ersatzteilnummer zu benutzen, da diese Kompo-
nente speziell ausgewáhlt worden ist — Z.B. TR102*.
Komponentendruck und Koordinatensystem
Die grof3ten Printplatten sind mit Komponenten-
druck und Koordinatensystem sowohl auf der Print-
als auf der Komponentenseite (Bestiickungsseite)
versehen.
In den Schaltbildern ist jede Komponente mit einer
Koordinatennummer versehen. Diese gibt an, in
welcher Koordinate auf der Printplatte die Kompo-
nente angebracht ist. Die Koordinatennummer ist in
kleinerer Schrift als die der Positionsnummer ange-
geben.
Steuerschaltkreise
Bei gewissen Steuerschaltkreisen ist der aktive
Zustand durch eine Anzeige der Funktion oder eine
Buchstabenbezeichnung angegeben, z.B. STBY.=
>l0W” in der Bereitsschaftsstellung oder ST.BY. =
high” in der Bereitsschaftsstellung.
Leitungsverbindungen
Die Leitungsverbindungen sind auf den Schaltbil-
dern in „Bündeln” zusammengefaßt. Die einzelnen
Leitungen sind mit einer der folgenden Code-
Bezeichnungen versehen:
INTERNE VERBINDUNGEN AUF EINER SCHALT-
BILDSEITE
Interne Verbindungen auf einer Schaltbildseite
werden mit einer Nummer angegeben. Die Biegung
der Leitung zeigt, in welcher Richtung das andere
Ende der Leitung sich befindet.
VERBINDUNGEN AN EINE ANDERE SCHALT-
BILDSEITE
SCHALTBILD A
SCHEMA A
|
C3
\
|
(32
\
Eine Verbindung an eine andere Schaltbildseite wird
mit einer Nummer sowie einem Buchstaben des
Schaltbildes, an das die Verbindung geht, angegeben.
1-9
NOTICE EXPLICATIVE DES SCHEMAS
Sur les schemas, les numeros de types sont indi-
quees pour les transistors et les circuits imprimes.
Si le numero de position est suivi par un asterisque,
il est impératif d’utiliser le numéro de la pièce de
rechange, étant donné qu’il s’agit d’un composant
spécialement sélectionné, par exemple TR102*.
Composants imprimés et système de
coordonnées
Les circuits imprimés les plus grands sont munis de
composants imprimés et de systèmes de coordon-
nées sur la côté impression et sur la côté compo-
sant.
Chaque composant figurant sur un schéma est
pourvu d’un numéro de coordonnées. Ceci indique
dans quelles coordonnées de la carte le component
en question est situé. Les numéros de coordonnées
sont écrits avec des caractères plus petites que
celles des numéros de position.
Circuits de commande
Dans certains circuits de commande, l’état actif est
indiqué par un terme de fonction ou par une repré-
sentation en lettres. Celle-ci peut être p.ex. STBY. =
bas en position veille ou ST.BY. = haut en position
veille.
Connexions des fils
Les connexions de fils sur les schémas sont assem-
blées en «faisceaux». Chaque fil est pourvu d’un des
codes suivants:
CONNEXION INTERNE SUR UN COTE DU
SCHEMA
|
/
Connexions internes sur une page de schéma sont
indiquées par un chiffre. L’angle du fil indique la
direction dans laquelle l’autre bout du fil peut être
trouvé.
CONNEXION VERS UN AUTRE COTE DU
SCHEMA
SCHALTBILD C
SCHEMA C
| |
A32 A3
/ /
Une connexion vers une autre page de schéma est
indiquée par un chiffre et par une lettre indiquant le
schéma que la connexion relie.
1-10
Versorgungsspannungen
Alle Versorgungsspannungen in den Schaltbildern
werden mit einem Pfeil sowie einer Indikation der
Spannung angegeben.
Beispiel:
Neben der Netzspannung steht z.B. 7 CON. Dies
bedeutet, daß die Versorgung an 7 Stellen auf das
Schaltbild geleitet wird (7 CON. = 7 connections).
MASSE-SYMBOLE
Im Gerät werden 3 verschiedene Masse-Symbole
verwandt.
| = Masse
= Signal-Masse
1 = Chassis-masse.
MERBEDINGUNGEN
Alle DC-Spannungen sind im Verhältnis zu Masse
mit einem Voltmeter mit einem Eingangswiderstand
von 10 Mohm gemessen.
Die DC-Spannungen sind in Volt (V) aufgegeben, z.B.
0,7 V.
SYMBOL FÜR SICHERHEITSKOMPONENTEN
/N
Bei der Auswechslung von Komponenten mit
diesem Symbol sind Komponenten mit der gleichen
Ersatznummer zu verwenden. Die neue Komponente
ist in derselben Weise wie die ausgewechselte
Komponente zu montieren.
Bang &Olufsen
Tensions d’alimentation
Sur les schémas tous les tensions d’alimentation
sont munies d’une flèche et d’une indication du
voltage.
Exemple:
À côté de l’indication du voltage est indiqué p.ex.
«7 CON». Cela signifie que la tension d’alimentation
en question est conduite à 7 endroits sur le schéma
(7 CON. = 7 connections).
SYMBOLES CONCENANT LA MASSE
On utilise trois signes différents pour indiquer la
masse dans l'appareil.
| = Masse
} =— Potentiel de masse du signal
| = Chassis
CONDITIONS DE MESURE
Toutes les tensions en courant alternatif (CA) sont
mesurées par rapport à la masse à l’aide d’un volt-
mètre avec une résistance interne de 10 Mohms.
Les tensions CC sont indiquées en volt (V), par
exemple 0,7 V.
SYMBOLE DES COMPOSANTS SECURITE
/N
En remplacant un composant portant ce symbole il
faut utiliser les composants du meme numero de
référence. Le nouveau composant doit être monté de
la même manière que celui qu'il remplace.
Bang &Olufsen
1-11
ADVARSEL!
LITHIUMBATTERI — EKSPLOSIONSFARE
UDSKIFTNING MA KUN FORETAGES AF EN SAGKYNDIG.
OG SOM BESKREVET | SERVICE MANUAL.
WARNING!
LITHIUM BATTERY — RISK OF EXPLOSIÓN
TO BE REPLACED BY QUALIFIED SERVICEMAN ONLY
AND AS DESCRIBED IN THE SERVICE MANUAL.
ACHTUNG LITHIUM-BATTERIEN
Kurzschlu und Uberladung von gewissen Typen
Lithium-Batterien konnen eine kräftige Explosion
verursachen. | |
Beim Auswechseln der Lithium-Batterie in diesem
Gerát nur eine Batterie von dem in dieser Service-
anleitung angegeben Fabrikat und Typ benutzen
(siehe Seite 3-5).
Die batterie muß genau wie die ursprüngliche
montiert werden.
Explanation of the fuse symbols
used in the set
Explanation de symboles du
fusible utilisés dans l’appareil
ATTENTION ACCUMULATEUR AU LITHIUM
Le court-circuit ou la recharge excessive de certains
accumulateurs au lithium peut entraîner une
violente explosion.
Il convient de respecter les indications suivantes en
cas de remplacement de l’accumulateur au lithium
dans cet appareil: Utiliser impérativement un accu-
mulateur de la marque et du modèle indiqués dans
ce manuel d’entretien (voir page 3-5).
Il est impératif de monter l’accumulateur exacte-
ment comme l’accumulateur initial.
Replace with the same type of 5 amperes 125 volts slow acting fuse.
T-5A
125V Remplacer par un fusible retardé de la même type et de 5 ampères
125 volts.
Replace with the same type of 2 amperes 125 volts slow acting fuse.
T-2A
125V Remplacer par un fusible retardé de la même type et de 2 ampères
125 volts.
Replace with the same type of 1 amperes 250 volts slow acting fuse.
F-1A
250V | Remplacer par un fusible retardé de la même type et de 1 ampères
250 volts.
ES rn mm
PCB2 FM
PCB1 AM
2-1 2-1
DIAGRAM FOR FM TUNER & MW SECTION
— 3050111 | /
m 8050112 mTYPE 2964 ONLY Rs
T QL! jLe de" 21 CT
1 E ol |
1] T
< a l
CIA Sha
2 6p8l ]
u | i |
+ Cla
IA
3
ale a
AGC R4
TK
4
C29
[220
{R34 R33 R32
TUNING VOLTAGE 4 C25
a. o
> ==
8 {cos 0.5p
[22°
mie SP FM TUNER
or ex o
RIB
+ ПБК]
Teo: 95
Jr
TUNING VOLTAGE
NC35
AL TOn2
Ш | +
; A55KHZ a С48
_ —B0+
| 2V . \ A \ AZ X 5 5
со 19 [20 | 7 15 16 M2 ||
MW TUNER 4 18
T > | AFC | | SIGNAL STRENGTH | —
OSC
N ALC
lx
Eo
mmm
RF
he 29m, C38 c9
250, 05 ¥ == м
C40 _ © Г 1: 10
AZ Mm Св
5.5-65p Cas C45 CE Al
- = Al Jeon
2-22p [220m
- >
(X CON.) = NUMBER OF VOLTAGE CONNECTIONS.
osc
The FM TUNER is a single unit.
With failure in this unit we recomment
replacing the whole unit.
However the part nos. of semi-conductors
are in the list of electrical parts.
R42 СЗ!
R
R49 , | R47
A Al
ral e 60 Look )
C15 C27 eBcsa98
In5 In5
rib I= I
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| AI
| 245
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/
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470
|
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-
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| 455 KHz
5
Le
AÑ ——
|2\
(1 CON)p34-9
- 12V
(1 CON)P34-10
P34-6
]
Bang &Olufsen
Bang & Olufsen 2-2
DIAGRAM A (FM 8: AM Section)
8001056
8001060 TYPE 2964
I2VA
AGC TUNER
AGC |
9 |
TUNER FRONT END |
9 A |
}
6 |
I
| 7
Cles
LM 1865
& TOR
IF QUT
Lal
© IF LIMITER
о 5
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5 8 5
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D
Ad
TR4
BC847B
2.5\
LM 358N ce
1/2 I
|
4
P27-7
80029 /5 ==
AM TUNER P54-
TUNING VOLTAGE
P34-4 TR7
BC847B
242 ||
SIGNAL STRENGTH
LW
P34-5
TR3
BC847B
(X CON.) = NUMBER OF VOLTAGE CONNECTIONS.
IC? ei
LA 340]
STEREO
DECODER
L
DECODER
AM/FM
MONO/ CHANGE
OSC
COMPARATOR STERE
OVER
CONTROL
13 115 14
31
[On
BC847B
Al
AE 7 *
3CON) P34- _
= 12V
3CON) P34- [0
34-6
“
32m
|
RDS P30-1¥
3
B2
6nd nD 220n
® = R 101/102 ONLY
TRS B2
BC B48B
|
MOUNTIED IN TYPE 2963
C5/76 ARE In IN TYPE 2963
A2
SENCE
IC3 a3
LC7217
Ow
TER 1/1
1/17,4 B
C44
A3
27p |2
P27-8
101
P27-10
—
+
aa
83 220n
TRY B2
BC 8488
TRIO al
BC848C
SOV
(3CON)
-12V
(1CON}
12V
TR6 84 (4CON
Ad
TOP-
STEREO
PLL DATA
P28-1
TUNING
CONTROL
(PLL)
PLL CLP
R57 P28-
Ad
330p
PLL DATA
C56 P28-
Ad
CE
C55
ña
330p
VOLTAGES ARE
MEASURED IN:
FM
(MW)
[LW]
2-3
DIAGRAM B (Input Select, Volume & Tone Control and RIAA Amplfier)
15
14
— 8002953 5
__
…
3
P24-4
P24-!
P25-6
7 8002982 LINE
6 8002956 RIAA
Cl
In
POWER FAIL
PL. ON/OFF
P25-4
mn
P24-3
PRG.MUTE
CONTROL
Da
1/2 ICI
TC 9164
INPUT
SELECT
RIGHT
D8
1/2 ICI
TC 9164
INPUT
SELECT
LEFT
TR! _ BC847B
CIS
4n7
BC850B
PH/TP2
150p
=ONLY WHEN
THE RECEIVER
HAS RIAA
AMPLIFIER
2-3 Bang & Olufsen
Cll
|
AB A7
4558
1/2 ICS
E3
1/2 IC4
LM
4558
1/2 IC6
1/2 IC7
LF 353
VOL .FINE
. COARSE
BALANCE)
LOUDNESS
IC2 87 LC 7537 VOLUME
TONE CONTROL RIGHT
cog
cs
[On
— |
(9CON)
C25
ES
1 00n
2V
1/2 IC9
4558 св
7
1/2 IC4es
LM 833N
Cll
In
4558 4558
1/2 IC9 1/2 IC8 СЭ
Bé
|50p
1/2 IC7
LF 353
D16
LOUDNESS
VOL .FINE
CONTROL
1/2 IC2 87 LC 7537 VOLUME
AND TONE CONTROL LEFT
(BALANCE)
107 ¿C109
AS
47p 14/p
108
B8
47p
К
PCB8 RIAA
510-3 VOLTAGES ARE MEASURED
19- WITHOUT SIGNAL
A A A A 0
Bang &Olufsen
— 5 8002953
P150
KE
DIAGRAM C (Power Supply & Output Amplifier)
2-4
POWER SUPPLY
Nn. 50/60 Hz
~D42
” 7
TRI9 P22-6
( )BC547B
30V
(2CON)
. ~B27
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TYPE 2963
(X CON.) =
NUMBER OF VOLTAGE CONNECTIONS.
P23 F2
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q P23 | 220n |
i | L | D24 » 33V
| Cal 54. (ICON)
q B2 == B3 B3 O
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2-5 2-5
DIAGRAM D (Microcomputer and IR In/Out)
/ 8002972
PCBS5, IR In/Out
5VA
ct7 40
4 BI |
р 5VA oon] +VB
B30% PI-6 AAL RA A 3
—€ ? T “2205 + * > —< DATA LINK PH/
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Al
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— + rr 39 KEY DATA 3
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== PUR
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| c139 MM
E52 820p L4 RIL
Van Нек {35 —>—e— KEY DATA 0
cia I 10. RE
| «БА
A280 PI-3 820p RÍA
LL Чак} 4 —<e— Y Pu cp
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6K8
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ST STATIC RAM 2. 768KHz
O J
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|
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| BI [27° | 5г
| a
o
| ©
1 |
! LI Bi :
| 455kHz TR
н a BCH58B
(X CON) = NUMBER OF VOLTAGE CONNECTIONS.
2-5 Bang 8: Olufsen
PCB drawing for PCBA see page 2-7
R38
Clio 5SVAD—y Ss
| о — R47 P3-2
DATA IN ana] ‚| | STROBE Si +— 1470 —— > B21 /
KEY О R39 С112
AUX [ENABLE | © ERI J 4700 |
т KEY Lui R48 P3-3
LEY T > R40 Leia
7 =! A | | R49 L700 |
WR WR DATA [22 —a70} — 3520
RAI 2 {ci r
5 5 Hitt Y
Е [30 — 28 R50 Р P3-5 618
AL ALE | CE 4— [470] + 3
e
z |
a DATA FE
25 > ve Q |
2 P3-7
26 - 26 о CLP ~Bl6 A
= —
27 - 27 o
- ©
x НН А оно нуно В
= > x 8 POWER FAIL
21 o
25 > a | RESET |
= P2-4
22 « 24 Lo 3 50/60Hz 342 /
2 | od we Ic 43
> m 155-2
V TS 24 | Бул 5] 256 X 8 RAM Р2-7 |
29 -_22 — ~ C45 /
PSEN >— 08 R34 … | 39 ON/OFF >
| 20 *\В |
a Г > ALE la | | B 9 p2-8 |.
AD, Be — Чао. АЗ» Az DA 9 AD 7 oi on/OFF 3 A
4 18
ao, FF — Ja, afr of — 404 |
P2-8
34 4 175 17 17 047 /
А, — 405 »: As As Dr ; ADS MUTE 3
AD, P- ap, 2 AFA, FF — a PLL CE
4 < pa 4 4 15 4 P3-1 AL3
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= 3 3 5 3 3 3 3 |
14
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R106
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B2
—
Bang 8: Olufsen 2-6
DIAGRAM E (Operation Panel) PCB drawing for PCB6 see page 2-8
E, 8001106
OUTPUTS
ТВ Е AS
CI
A3
др
TRI 4 as
BF
Cl
Ad
lep
CD PH
TR | 84a9 ТВ | Эмо
Cl
A9
I5p
Cl
A9
ТР2
TR24 a0
AUX
TR22412 TR23AII
OUTPUTS
\
ТВ 26 [13 TRE 7ala
TESTMODE
Pil-2 o
9V (20 CON)
KEY DATA O
KEY DATA 3
KEY DATA 2
KEY DATA
( X CON ) = NUMBER OF VOLTAGE CONNECTIONS.
2-6
2-6
D44 D43
SV
Ÿ coy
R54
DISP. DATA | _P8-14D60
Ty
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26
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BLOCK DIAGRAM CONTROL SYSTEM
PLL DATA
PLL CE
PLL CLP
LEFT TUNING
CONTROL
IC3
DATA
|
AL
N
АТС!
256X8 RAM
8032
DATA
LINK
>
=
PH/TP2
J
2 IR IN
IR TRANSMIT
2
AIC2 LAYCH
<
--
RESET
ATR4 |
POWER 409
51C101
5TRI01/102/1
PCB4, Microcomputer
2-7 Bang & Olufsen
R
6IC1/2
S
KEYBOARD
2 |
DISPLA
IVER
IC3
DISPLAY
~~
KEY ENABLE
INPUT VOLUMEN AND
INPUT _ SOUND
SELECT CONTROL
—
{ TONE CONTROL
41C4
12-19 256X8 RAM PRG.MUTE
И-М 8155-2
TING
OUTPUT
AMPL.
4IC3 64KX8ROM27512
RELAY
STR 13/33
+33 Vv
+ 12V
POWER F
Bang &Olufsen 2-8 2-
BLOCK DIAGRAM SIGNAL PATH
|
т
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TA
STROB
WC
FM TUNER DETECTOR STEREO я e u
o
7 2ICI DECODER
2IC2
Col 17
\
VOLUME
AND TON
FM TUN. VOLTAGE
12 AM/FM
PLL DATA
PLL DATA
PLL CLP(™
PLL CE
AM
ITRI-6
AM
1/2 ICI
1/2 1TC
PCB6, Operation Panel
POWER FAIL С
27TR4/14/23/26 а
| OUTPUT -
+ AMPLIFIES | ©
SICS cs
2
TR9 ed
MUTING |
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<{ 16/33 | |
| |
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M
3TR13/33 dq —
SRL4 | ON/OFF
3-1
LIST OF ELECTRICAL PARTS DE
ePCB 01, 8002975
AM (LW/MW)
Type 2961, 2962
a
a
3-1
TED
Ola =
Resistors not referred to are standard, see page 3-8
A indicates that static electricity may destroy the component
* Specially selected or adapted sample
IC1 8340757 136 LA 1245
TR1 8320757 51 BC 818-40 TR6 8320611 59 BF 512
TR2 8320753 51 BC 856B TR7- 8320755 51 BC 847B
TR3 8320755 51 BC 847B TRS
TR4 8320758 57 PMBF 4392 TRY 8320636 51 BC 849B
TRS 8320753 51 BC 856B
D1 8300569 253 VAR AM-TUN D5 8300569 253 VAR AM-tun
D2 8300385 209 BA 423 D6- 8300385 209 BA 423
D4 8300385 209 BA 423 D7
R11 5370330 220kQ 20% 0.1W R37 5011007 330 5% 1/2W
R35 5011007 330 5% 1/2W
C1 4010177 22nF-20+80% 50V C25 4000231 68pF 5% 50V
C2 4010178 47nF -20+80% 50V C27 4010171 1.5nF 10% 50V
C3 4000342 1nF 10% 50V C28 4010178 47nF -20+80% 50V
C4- 4010166 100nF -20+80% 50V C29 4000280 68pF 5% 50V
C5 C30 4010176 10nF -20+80% 50V
C6 4200362 4.7pF -10+50% 16V C31 4010178 47nF -20+80% 50V
C7 4200342 10pF -10+50% 63V C32 4000342 1nF 10% 50V
C8 4000287 220nF -20+80% 25V C34 4000293 47pF 5% 50V
C9 4200342 10uF-10+50% 63V C35 4010170 2.2nF 10% 50V
C10 4000351 1.5nF 5% C36 4340003 5.5-65pF
C11 4010177 22nF-20+80% 50V C37 4010178 47nF -20+80% 50V
C12 4200362 4.7pF -10+50% 16V C38 4010177 22nF-20+80% 50V
C13 4000347 330pF 2% 50V C39 4010170 2.2nF 10% 50V
C15 4010171 1.5nF 10% 50V C40 4340003 5.5-65pF
C16- 4010166 100nF -20+80% 50V C41 4000240 56pF 5% 50V
C17 C42 4010170 2.2nF 10% 50V
C18 4000287 220nF -20+80% 25V C43 4340002 2-22pF
C19- 4010166 100nF -20+80% 50V C44- 4010166 100nF -20+80% 50V
C21 C45
C22 4010196 1.8nF 5% 50V C46 4000229 150pF 5% 50V
C23 4010166 100nF -20+80% 50V C47 4200129 100pF -20+50% 16V
C24 4340002 2-22pF C48 4201035 2.2pF-10+50% 63V
L1 8020558 Coil LB SO116 L4 8020560 Coil LB SO116
L2 8020562 Coil 455KHz L5 8020557 250uH
L3 8020561 Coil 455H L6 8020559 125uH
P33 7220279 Plug 2/2 P34 7220432 Plug 10/10
@BP1 8030056 Filter 455KHz
X1 8030088 455KHz
@By replacement, see section 7, “AM/FM display indication” or “Erasure of RAM”.
Bang &Olufsen
PCB 03, 8002953
AMPLIFIER & POWER SUPPLY
3-2
C18 4100235 680pF 5% 63V C53 4000282 180pF 5% 50V
C19 4200525 22uF 20% 10V C54 4010132 1nF 10% 50V
C20 4100238 3.3nF 5% 63V C55- 4000284 330pF 5% 50V
C21 4100260 2.2nF 2,5% 63V C57
C22 4200630 0.68uF 20% 50V C58 4010157 10nF 10% 50V
C23 4200510 10uF 20% 16V C59 4200525 22uF 20% 10V
C24 4100261 6.8nF 2,5% 63V C60- 4010132 1nF 10% 50V
C25 4010166 100nF -20+80% 50V ~~ C63
C26 4010132 1nF 10% 50V C64 4010157 10nF 10% 50V
C27 4010166 100nF -20+80% 50V C65 4000286 470pF 5% 50V
C28 4000287 220nF -20+80% 25V C66 4200517 2.2uF 20% 50V
C29 4100261 6.8nF 2,5% 63V C67 4010173 4.7nF 10% 50V
C30 4010166 100nF -20+80% 50V C68 4200512 1uF 20% 50V
C31 4010157 10nF 10% 50V C69 4000290 22nF 10% 50V
C32 4010173 4.7nF 10% 50V C70 4200129 100uF-204+50% 16V
C33 4000239 33pF 5% 50V C71 4010173 4.7nF 10% 50V
C34 4010171 1.5nF 10% 50V C72 4200625 3.3uF 20% 50V
C35 4200510 10uF 20% 16V C73- 4010157 10nF 10% 50V
C36 4010132 1nF 10% 50V C74
C37 4200512 1pF 20% 50V C75 4010132 1nF 10% 50V
C38 4100210 1.5nF 5% 63V C76 4000286 470pF 5% 50V
C39 4200512 1uF 20% 50V C76 4000352 1nF 5% 50V.
C40 4200515 4.7uF 20% 25V Only type 2963.
C42 4010132 1nF 10% 50V C77 4010173 4.7nF 10% 50V
C43 4200129 100pF -20+50% 16V cC78 4010157 10nF 10% 50V
C44 4000278 27pF 5% 50V C79 4010173 4.7nF 10% 50V
C45 4200523 0.47uF 20% 50V C80 4010157 10nF 10% 50V
C46 4000142 82pF 5% 63V C81 4010173 4.70Е 10% 50V
C47 4200510 10uF 20% 16V C82 4200483 47uF 20% 16V
C48 4010132 1nF 10% 50V C83 4000287 220nF -20+80% 25V
C49 4030023 47nF -20+80% 16V C100 4000324 390pF 5% 50V
C51- 4010132 1nF 10% 50V |
C52
L1 8022239 Coil 32mH 2% L5 8022240 Coil 19.5mH 2%
L2 8020569 Coil 18uH 10% L6 8022239 Coil 32mH 2%
L3 8020568 Coil 2.7uH L8 8022239 Coil 32mH 2%
L4 8022239 Coil 32mH 2%
Pl 7210673 Socket 75Q p27 7220432 Plug 10pol.
P26 7220429 Plug 7pol. P28 7220426 Plug 4pol.
@BPi- 8030090 Filter 10,7MHz
eBP3
X1 8030087 Crystal 456KHz X2 8090076 Crystal 3.60MHz
IC1A 8340759 136 TC 9164 C IC5- 8340790 103 4558
IC2A 8341040 136 LC 7537 IC6
IC3 8350045 141 STK 4151-5 IC7 8340763 136 LF 353
IC4 8340930 103 LM 833N IC8- 8340790 103 4558
IC9
TR1 8320514 20 BC 546B TR19 8320497 20 BC 547B
TR2 8320497 20 BC 547B TR20 8320514 20 BC 546B
TR4- 8320514 20 BC 546B TR21 8320369 31 BD 534
TRS TR22 28320497 20 BC 547B
TRS 8320785 32 BD 138-10 TR23- 8320503 20 BC 557B
TR9- 8320497 20 BC 547B TR24
TR10 TR25- 8320497 20 BC 547B
TR11 18320785 32 BD 138-10 TR26
TR12 88320497 20 BC 547B TR27 8320503 20 BC 557B
TR13 8320503 20 BC 557B TR28 8320369 31 BD 534
TR14 8320514 20 BC 546B TR29 8320497 20 BC 547B
TR15- 8320503 20 BC 557B TR30- 8320525 19 MPSA 16
TR16 TR31
TR17 8320497 20 BC 547B TR32- 8320497 20 BC 547B
TR18 8320369 31 BD 534 TR34
D1 8300058 209 1N 4148 D6 8300154 209 BZX79C 6V8
D2- 8300023 209 1N 4002 D7 8300058 209 1N 4148
D3 D8 8300036 209 BZX83C 4V7
D4 8300154 209 BZX79C 6V8 D9 8300058 209 1N 4148
D5 8300058 209 1N 4148 D10 8300023 209 IN 4002
Bang &Olufsen
D12- 8300058 209 1N 4148 D22- 8300058 209 1N 4148
D13 D23
D14 8300313 209 BZX83B 15 D24 8300487 KBU6D
D15 8300541 209 3V3 D25 8300058 209 1N 4148
D16 8300058 209 1N 4148 D26 8300212 209 1N 4448
D17 8300023 209 1N 4002 D27 8300023 209 1N 4002
D18 8300058 209 1N 4148 D28 8300128 209 BZX83C 5V6
D19 8300023 209 1N 4002 D101- 8300482 217 LL 4148
D20 8300058 209 1N 4148 D116
D21 8300169 209 ZPD 79B 5V1
R5 5020226 7.5kQ 1% 1/4W R103 5020194 1.58kQ 1% 1/4W
R10 5020814 562Q 1% 1/4W R106 5020814 562Q 1% 1/4W
R11 5020200 2.1kQ 1% 1/4W R120 5010819 56kQ 2% 1/4W
R34 5220036 330kQ 10% 1/2WNTC R130 5020159 100Q 10% 0,3W
R36 5020529 274Q 1% 1/4W R135 5020341 7.68kQ 1% 1/4W
R55 5020292 17.8kQ 1% 1/4W R141 5020159 1000 10% 0,3W
R59 5020335 10.2kQ 1% 1/4W R143 5020228 8.87kQ 1% 1/4W
R70 5100175 0.330 10% 2W R144 5010819 56kQ 2% 1/4W
R71 5020231 11.3kQ 1% 1/4W R147 5020455 470Q 5% 1W
R78 5010819 56kQ 2% 1/4W R149 5020455 470Q 5% 1W
R94 5020770 4.42kQ 1% 1/4W R165- 5020814 5620 1% 1/4W
R96 5020291 3.32kQ 1% 1/4W R166
R102 5100175 0.330 10% 2W R167 5020636 1.8kQ 5% 1W
C1 4200510 10pF 20% 16V C58 4130306 100nF 10% 63V
C2 4200271 47uF-10+100% 63V C59 4200271 47uF -10+100% 63V
C3 4010155 220pF 10% 63V C60 4200721 47pF -10+100%
C4 4130311 680nF 10% 63V 40V Bipolar
C5 4130103 100nF 20% 250V C61 4130313 470nF 20% 63V
C6 4100209 470pF 5% 63V C62 4200510 10pF 20% 16V
C7 4130233 220nF 20% 63V C63 4010111 3.3nF 10% 63V
C9 4000205 150pF 5% 63V C65 4010105 1nF 10% 63V
C11 4000205 150pF 5% 63V C66- 4130306 100nF 10% 63V
C13 4200510 10uF 20% 16V C67
C15 4200516 47uF 20% 16V C69 4130313 470nF 20% 63V
C17 4130104 220nF 20% 100V C70- 4200512 1uF 20% 50V
C18 4200510 10uF 20% 16V C71
C19 4000193 47pF 5% 63V C72 4130104 220nF 20% 100V
C20 4200417 4700pF -10+50% 16V C73 4201082 100uF -10+100% 40V
C21 4200523 0.47uF 20% 50V C74 4010111 3.3nF 10% 63V
C22 4100209 470pF 5% 63V С75- 4200512 1uF 20% 50V
C23 4000193 47pF 5% 63V C78
C24 4000243 100pF 5% 63V C79 4200342 10pF -10+50% 63V
C25 4130306 100nF 10% 63V C80- 4200512 1uF 20% 50V
C26 4000243 100pF 5% 63V Cal
C27 4010122 680pF 10% 63V C82 4200789 220uF 20% 100V
C28 4000193 47pF 5% 63V C83 4010122 680pF 10% 63V
C29 4130233 220nF 20% 63V C84 4200516 47pF 20% 16V
C30 4000193 47pF 5% 63V C85 4200525 22uF 20% 10V
C31 4130311 680nF 10% 63V C86 4130233 220nF 20% 63V
C32 4200510 10uF 20% 16V C87 4200342 10pF -10+50% 63V
C33 4010167 2.7nF 10% 100V C88 4130233 220nF 20% 63V
C34 4200510 10pF 20% 16V C89 4010155 220pF 10% 63V
C35 4200510 10uF 20% 16V C90- 4010106 10nF-20+80% 40V
C36 4010167 2.7nF 10% 100V C92
C37 4130103 100nF 20% 250V C93 4200515 4.7uF 20% 25V
C39 4010105 1nF 10% 63V C94 4130313 470nF 20% 63V
C41 4130104 220nF 20% 100V C95- 4010155 220pF 10% 63V
C43 4200510 10pF 20% 16V C97
C44 4200721 47uF-10+100% C100 4200524 10uF 20% 25V
40V Bipolar C101 4200561 10pF 20% 50V
C45 4010027 1nF 10% 63V C102 4200524 10pF 20% 25V
C47 4130306 100nF 10% 63V C103- 4200512 1uF 20% 50V
C48 4200510 10uF 20% 16V C106
C49 4010155 220pF 10% 63V C107 4000193 47pF 5% 63V
C51 4200510 10pF 20% 16V C108- 4000193 47pF 5% 63V
C52 4200778 6800pF 20% 50V C110
C53 4200510 10uF 20% 16V C111- 4010105 1nF 10% 63V
C54 4200778 6800uF 20% 50V C113
C55 4200510 10pF 20% 16V C114 4010027 1nF 10% 63V
C56 4130306 100nF 10% 63V C115- 4010105 1nF 10% 63V
C57 4200510 10pF 20% 16V C116
Bang &Olufsen
ePCB 04, 8002972
MICROCOMPUTER
Resistors not referred to are standard, see page 3-8
A indicates that static electricity may destroy the component
* Specially selected or adapted sample
L1- 6850165 Coil 3uH
L2
P15 7220428 Plug 6pol. P23 7220689 Plug spol.
P16 7220319 Plug 8pol. P25- 7210418 Din 7pol,
P17 7220427 Plug 5pol. CD-TP1-AUX/TV
P18 7220425 Plug 3pol. P27
P20 7220561 Plug 4pol. P28 7210510 Socket
P21 7220428 Plug 6pol. P150 7500124 Solder flab
P22 7220432 Plug 10pol.
F1 6604009 1A F4 6600095 5AT 250V
F2 6600095 5AT 250V 6600079 SAT 125V, type 2963
6600079 5AT 125V, type 2963 7500223 Holder for Fuse.
F3 6600009 2AT 250V
6600058 2AT 125V, type 2963
RL1 7600092 Relay 9V RL4 7600093 Relay 9V
8002686 PCB with diodes
ICIA 38341069 136 8032 IC4A 8341150 136 8155-2P
IC2A 8340777 136 74 HCT 573 @IC5SA 8341105 136 PCF8583
IC3A* 8341178 136 27512 7200056 Socket for IC3
TR1- 8320497 20 BC 547B TR5- 8320497 20 BC 547B
TR2 TR6
TR4 8320503 20 BC 557B
Di 8300029 209 BZX79C 12 D9 8300056 209 ZTE 1.5
D2- 8300058 209 1N4148
D8
C15 4030038 100nF -20+80% 25V С112- 4000236 470pF 10% 50V
C17 4030038 100nF -20+80% 25V C117
C18 4200546 470pF -10+50% 6.3V C118 4010132 1nF 10% 50V
C20 4200330 100pF -10+50% 10V C119 4010170 2,2nF 10% 50V
C22 4030038 100nF -20+80% 25V C120- 4010132 1nF 10% 50V
C23- 4000167 18pF 5% 63V C121
C24 C122 4010170 2,2nF 10% 50V
C25 4030038 100nF -20+80% 25V C123 4010132 1nF 10% 50V
C28 4200330 100pF -10+50% 10V C124 4010170 2,2nF 10% 50V
C29 4000134 10pF 5% 63V C125- 4000323 330pF 5% 50V
C30 4200510 10pF 20% 16V C126
C32 4010122 £680pF 10% 63V C127- 4010132 1nF 10% 50V
C101 4010170 2,2nF 10% C128
C103 4000323 330pF 5% 50V C130 4010132 1nF 10% 50V
C104- 4010170 2,2nF 10% 50V C132 4010132 1nF 10% 50V
C105 C136 4010170 2,2nF 10% 50V
C107- 4010170 2,2nF 10% 50V C138- 4000327 820pF 5% 50V
C110 C141
C111 4000323 330pF 5% 50V
P1- 7220764 Plug 10pol. P4 7220204 Plug 6pol.
P2 P5 7220202 Plug 5pol.
P3 7220763 Plug 7pol. P6 7220760 Plug 3pol.
OBy replacement, see section 7, “AM/FM display indication” or “Erasure of RAM”
PCB 05, 8002961
IR RECEIVER
Resistors not referred to are standard, see page 3-8
A indicates that static electricity may destroy the component
* Specially selected or adapted sample
|9
—
L1- 8020578 Coil 10uH 10% L6- 8020342 Coil 10uH
L5 L7
X1 8090075 Crystal 12.0MHz X2 8090078 Crystal 32.768KHz
ФВ! 8700027 Batteri Lithium ЗУ
IC1 8340373 136 TC 4001 BP
TRI 8320579 20 BC 549C TRS 8320510 20 BC 558B
TR2 8320625 42 BF 240 TR101- 8320509 20 BC 548B
TR3 8320509 20 BC 548B TR102
TR4 8320510 20 BC 558B TR103 8320682 32 BD 788
TR5 8320625 42 BF 240
TR6- 18320509 20 BC 508B
TR7
Di 8330140 203 TSHA 5502 D107- 8330140 203 TSHA 5502
D2- 8300058 209 1N 4148 D110
D6
C1 4010128 470pF 10% 63V C18 4130315 15nF 5% 63V
C2 4130230 100nF 20% 63V С19 4010128 470pF 10% 63V
C3 4010128 470pF 10% 63V C101 4010106 10nF-20+80% 40V
C4 4000137 47pF 5% 63V C102- 4000243 100pF 5% 63V
C5 4000243 100pF 5% 63V C103
C6 4010103 2.2nF 10% 63V C104 4010128 470pF 10% 63V
C7 4130313 470nF 20% 63V C105 4200512 1pF 20% 50V
C8 4010128 470pF 10% 63V C106 4010155 220pF 10% 63V
C9 4000193 47pF 5% 63V C107 4010128 470pF 10% 63V
С10 4010128 470pF 10% 63V C108 4000142 82pF 5% 63V
С11 4130233 220nF 20% 63V C109 4200517 2.2uF 20% 50V
С15 4130230 100nF 20% 63V C110 4200342 10uF-10+50% 63V
Cl6 4010128 470pF 10% 63V C111 4130230 100nF 20% 63V
C17 4000137 47pF 5% 63V
L1 8020562 455KHz L101 8020660 Coil 100uH
P10 7220246 Plug 5pol.
ВР1 8030056 Filter 455KHz
X1 8330024 455KHz 1KHz
@By replacement, see section 7, “AM/FM display indication” or “Erasure of RAM”
Bang &Olufsen
PCB 06, 8001106
OPERATION PANEL
PCB 07, 8002982
SOCKET PANEL
PCB 08, 8002956
RIAA AMPLIFIER
3-6
IC1- 8340780 101 MC 14044 IC3A 8340467 124 MM 5450N
IC2A |
TR1- 8320740 BF 840
TR27
D1- 8330184 246 Led Red D35- 8300482 217 LL 4148
D17 D42 |
D18- 8330188 246 Led Green D43- 8300557 209 BYM10
D27 D45
D28- 8330184 246 Led red
D34
R58 5370327 22kQ 20% 0,1W
C1- 4000274 12pF 5% 50V C20 4000276 18pF 5% 50V
C6 C21- 4000274 12pF 5% 50V
C7 4000219 10pF 5% 50V C23
C8- 4000274 12pF 5% 50V C24 4000276 18pF 5% 50V
C9 C25- 4000274 12pF 5% 50V
c10 4000219 10pF 5% 50V C27
C11 4000274 12pF 5% 50V C28- 4000323 330pF 5% 50V
C12 4000219 10pF 5% 50V C35
C13- 4000274 12pF 5% 50V C36- 4000292 100pF 5% 50V
C14 C39
C15- 4000275 15pF 5% 50V C40 4010176 10nF-20+80% 50V
C16 C41- 4010166 100nF -20+80% 50V
C17 4000261 22pF 5% 50V C42
C18- 4000275 15pF 5% 50V
C19
P8 7220691 Plug 5pol. P11 7220408 Plug 11pol.
P9 7220692 Plug 2pol.
DP1 8330244 Display red 4x7
D2 8300562 250 75.6
С1- 4130214 10nF 20% 63V C7 4000319 150pF 5% 50V
C3 C17- 4010132 1nF 10% 50V
C4 4010027 1nF 10% 63V C18
C5- 4130214 10nF 20% 63V C21 4000319 150pF 5% 50V
C6
P19 7220470 Plug 6pol. P104- 7210689 Power Link
P24 7220561 Plug 4pol. P105
P25 7220428 Plug 6pol. 7210520 3pol. Speaker 2.
P103 7210418 PH/TP2 7210521 4pol. Speaker 1.
TRI 8320755 51 BC 847B TR4 8320768 51 BC 850B
TR2 8320768 51 BC 850B TR5 8320769 51 BC 849C
TR3 8320769 51 BC 849C
D1 8300482 217 LL 4148 D2 8300562 250 Z5.6
C1 4010157 10nF 10% 50V C12 4010195 2.7nF 5% 50V
C2 4010167 2.7nF 10% 100V C13 4000286 470pF 5% 50V
C3 4010195 2.7nF 5% 50V C14 4000319 150pF 5% 50V
C4 4000319 150pF 5% 50V C15 4010173 4.7nF 10% 50V
C5- 4010166 100nF -20+80% 50V C16 4200688 47uF 20% 50V
C6 C17- 4010132 1nF 10%
C7 4000319 150pF 5% 50V C18
C8 4010167 2.7nF 10% 100Y C19- 4200423 2.2uF 20% 50V
C9 4000286 470pF 5% 50V C20
C10 4000290 22nF 10% 50V C21 4000319 150pF 5% 50V
C11 4010157 10nF 10% 50V
PCB 09, 8001116
TRANSFORMER PCB
Type 2961, 2962, 2965
PCB 09,8001117
TRANSFORMER PCB
Type 2963, 2964
PCB 17, 8050111
PCB 17, 8050112 Type 2964
TUNER
Resistors not referred to are standard, see page 3-8
=
Р19 7220470 Plug бро!. P103 7210418 PH
P24 7220561 Plug 4pol. P104- 7210689 Power Link
P25 7220486 Plug 6pol. P105
D1- 8300023 109 1N 4002
D2
C1 4200821 1000uF -20+50% 6.3V
L1 8022296 Coil 2x0.4MH
90C1 4010113 22nF 30% 25V
90T1 8013409 Transformer
R1 5000194 3.3mQ 10% 1/2W
Ll 8022296 Coil 2x0.4MH
TR1 8320766 53 BF 995 TR3- 8320672 51 BFS 20
TR2 8320766 53 BF 995 TR4
D1- 8300301 209 BB 204/Blue
D4
For remote control Beolink 1000, see service manual
MASTER CONTROL LINK no. 3538711
Bang &Olufsen
Standard Resistors:
Resistors SMD 2% 1/8 W
SMD 5% 1/8 W
Resistors 5% 1/2 W
Resistors 5% 1/4 W
Resistors 5% 1/8 W
5%
2%
2%
2%
2%
2%
3-8
5%
5%
x1
x10
x100
x1K
x10K
x100K
x1M
x10M
1.0
1.1
1.2
5011623
5011624
5011625
5011647
5011648
5011649
5011218
5011669
5011219
5011227
5011681
2011682
5011241
5011689
5011490
5011256
5011694
5011257
5011267
5011707
5011708
5011730
1.3
1.5
1.6
5011626
5011627
5011628
5011650
5011651
5011652
5011670
5011220
5011671
5011683
5011228
2011684
5011242
5011243
5011690
5011258
5011259
5011695
5011709
5011710
5011711
1.8
2.0
2.2
5011629
5011630
5011216
5011653
5011654
5011655
5011672
5011673
5011674
5011229
5011685
5011230
5011244
5011691
5011245
5011260
5011696
5011261
5011712
5011713
5011714
2.4
2.7
3.0
5011634
5011635
9011731
5011656
5011657
5011658
5011675
5011497
5011499
5011686
5011231
5011500
5011246
5011247
5011692
5011697
5011262
0011698
5011715
5011716
5011717
3.3
3.6
3.9
5011217
5011636
5011637
5011659
5011660
5011661
5011676
5011677
5011221
5011232
5011687
5011233
5011248
5011249
5011491
5011263
5011264
5011699
5011718
5011719
5011720
4.3
4.7
5.1
5011638
5011639
5011640
5011662
5011269
5011663
5011498
5011222
5011678
5011688
5011234
5011235
5011492
5011250
5011493
5011700
5011265
5011701
5011721
5011722
5011723
5.6
6.2
6.8
5011641
5011642
5011643
5011664
5011665
5011666
5011223
5011224
5011225
5011236
5011237
5011238
5011251
5011693
5011252
5011702
5011703
9011704
5011724
5011725
5011726
7.5
8.2
9.1
5011644
5011645
5011646
5011667
5011270
5011668
5011679
5011226
5011680
5011239
5011240
5011489
5011253
5011254
5011255
5011705
5011266
5011706
5011727
5011728
5011729
(Glue dots, approx. 200, part no. 3181932).
x1
x10
x100
x1K
x10K
x100K
x1M
x10M
1.0
1.2
1.5
5011406
5010727
5011000
5011001
5011002
5011013
5011014
5011015
5011028
5011030
5011031
5011044
5011045
5011046
5010313
5011058
5011059
5011069
5010421
5011071
5011083
1.8
2.2
2.7
5010857
5011335
5010787
5010708
5010803
5011016
5010815
5011018
5011033
5011034
5010055
5011047
5011048
5011049
5011061
5011062
5011072
5011074
5011075
3.3
3.9
4.7
5010255
5010765
5011007
5010782
5011009
5011019
5011021
5011022
5011037
5010700
5010035
5011051
5010036
5011063
5011065
5010381
5010392.
5011078
5.6
6.8
8.2
5010874
5011010
5011011
5011012
5011023
5011024
5011026
5011041
5011042
9011043
5010810
5010038
5011066
5011067
5011068
5011079
5011080
5011081
x1
x10
x100
x1K
x10K
x100K
x1M
x10M
1.0
1.2
1.5
5010592
5011348
5010506
5010595
5010468
5010065
5010128
5010057
5010040
5010153
5010247
5010059
5010046
5010053
5010049
5010047
5010063
5010054
5010665
5010093
5010638
1.8
2.2
2.7
5010682
5010925
5010822
5010448
5010403
5010362
5010092
5010000
5010066
5010064
5010298
5010135
5010079
5010141
0010072
2010120
5010083
5010791
5010245
5010431
3.3
3.9
4.7
5011377
5010888
5010253
5010622
5010411
5010044
5010070
5010058
5010076
5010069
5010048
5010075
5010060
5010045
5010117
5010073
5010077
5010848
5010714
5011513
5.6
6.8
8.2
5010706
5010904
5010880
5010151
5010039
5010056
5010067
5010144
5010068
5010041
5010052
0010154
5010061
5010062
5010091
5010071
5010074
5010505
5010658
xl
x10
x100
x1K
x10K
x100K
x1M
x10M
1.0
1.2
1.5
5011464
5011351
5011463
5011357
5011084
5011443
5010816
5011442
5011178
5010935
5011338
5011364
5011440
5011341
5011398
5011459
5011175
5011460
5020875
1.8
2.2
2.7
5011032
5011376
5011471
5011350
5010886
5011355
5011361
5011353
5011362
5011344
5010833
5011366
5011468
5011369
5011370
5011342
5011478
3.3
3.9
4.7
5011363
5011438
5011038
5011337
5011441
5010827
5011157
5011363
5011346
5011457
5010937
5011371
5011372
5011343
5011462
5020876
5.6
6.8
8.2
5011412
5011356
5011466
5011358
0011336
5011354
5010885
5010839
5011339
5011166
5011367
5011368
5011340
5011458
5011373
4-1
LIST OF MECHANICAL PARTS
Survey of screws and nuts
Parts not shown
Modul01 8002975
8001052
AM (LW/MW)
AM (MW)
Bang ¿Olufsen
Modul02 8001056
8001060
0201 7210673
FM. Type 2961/62/63/65
FM. Type 2964
FM Socket
Modul03 8002953
Amplifier & Power Supply
Heat sink
0301 2622248 Washer
0302 2819175 Spring
Modul04 8002972 Microcomputer
0401 3164713 Cover top
0402 3164713 Cover bottom
Modul05 8002961
0501 3164714
0502 3164714
IR Receiver
Cover top
Cover bottom
Modul06 8001106
0601 3131257
0602 3907059
0603 3131258
3947286
Operation Panel
Housing small
Rubber
Housing big
Tape one roll of 1m.
Modul07 8002982
Socket Panel Bracket
Modul08 8002956
Riaa Amplifier
Modul09 8001116
8001117
Transformer PCB. Type 2961, 2962, 2965
Transformer PCB. Type 2963, 2964
Modul17 8050111
Tuner
8050112 “Tuner Type 2964.
9001 2530507 Bracket 9008 3458606 Top plate
9002 2938154 Bushing 9009 2818090 Spring
9003 3358238 Cold plate 9010 2542732 Bracket
9004 2816169 Spring 9011 3168782 Glass display
9005 6271102 Mains cord, 9012 3114302 Chassis
type 2961, 2962 9013 3454515 Bottom
6270328 Mains cord, type 2963 9014 2542707 Bracket
6271119 Mains cord, type 2964 9015 3103083 Foot
6270297 Mains cord, type 2965 9016 3322119 IR window
9006 3152367 Bracket 90T1 8013409 Transformer
9007 3168740 Bracket 90TF1 6609024 Thermal fuse
1 2013144 PT. Screw 3x8 5 2038118 Screw AM 3x6
2 2038117 Screw AM 3x4 6 2013153 PT. Screw 3x6
3 2015130 PT. Screw 3.5x30 7 2013138 PL. Screw M2.9x6.5
4 2013154 PT. Screw 3x16
6275832 Mains wire bundle 3502662 Owner's Manual DK
6276010 Complete set of wires. 3502663 Owners Manual S
2569086 Cable tray 3502664 Owner's Manual SF
3456182 End piece, right 3502665 Owner's Manual GB
3456183 End piece, left 3502666 Owner's Manual D
Fodder 3stk. 3502667 Owner's Manual NL
3392039 Outer box 3502668 Owners Manual F
3397532 Foam packing, Top 3502669 Owner's Manual GR
3397657 Packing 3502670 Owner's Manual I
3946038 Foil (1m). 3502671 Owner's Manual E
3502672 Owner's Manual
USA/CDN
3502673 Owner's Manual CDN
For remote control Beolink 1000, see service manual MASTER CONTROL LINK
no. 3538711
4-2
Bang &Olufsen
Expl. view
NN
Na NS
EX
ve т
Ve
1 \
Y:
—
7-3
6
4-2
4-2
P34
10
PIN3
—PIN1
AM stop level
ки! (О)
11
[@] !F
C36
LW
PIN13 ox
cu©) [el],
20 1
IC1
L2
10 L3
MW
Osc O]:
— —
C12
va RA
:
R
|] Le 1/ Ch. Separation
nt 2
Jk =a
TP
FMIF
R
#[]® vp
PIN 8—[]
$ R14 R84
"
Left Right
FM AF Output
PIN17
24 13
IC3
4 +? PIN14
20 11 Detector
PINS 1C1 [O]
1 10 L3
PIN8 PINS
* © SR
Mono/Stereo FM stop level
Change over
PIN4 PIN3
7 1
P26
PCB 6 BACK VIEW
TESTMODE
5-1
JUSTERINGER
SV forsyning
Bang &Olufsen
ADJUSTMENTS
OV power supply
Et DC-voltmeter tilsluttes 5V forsyningsspændingen
(anoden af 3D9). Spændingen skal være inden for
4,8V-5,25V. Hvis spændingen er hajere end 5,25V,
klippes J10.
PCB6 (Back view)
Connect a DC voltmeter to the 5V power supply (the
anode of 3D9). The voltage must be in the range
from 4.8V to 5.25V. If the voltage is higher than
5.25V, J10 must be cut.
Lysintensitet
Et milliamperemeter tilsluttes i serie med 6D45
(5V). En 10 kohms modstand forbindes fra ben 20
til ben 22 pá 61C3. Tryk f.eks. CD pá betjenings-
panelet: Alle lysdioder skal nu være tændt, bortset
fra 7-segment displayet.
6R58 justeres, til der mâles 275 mA.
10 kohms modstanden afmonteres.
HF-JUSTERINGER
Bemærk! For at lette betjeningen af apparatet ved
HF-justeringer, skal disse foretages i
»TEST- MODE<.
»[EST-MODE«: Kortslut »TEST-MODE«-stikket pa
PCB4 og sat samtidig netstikket i. Fjern kortslut-
ningen pa »TEST-MODE«-stikket.
I »TEST-MODE« kan modtageren skiftes mellem de
frekvenser, der benyttes ved justering. Tryk 0 pá be-
tieningspanelet og tryk derefter de nedenstáende tal
for at veelge de tilherende frekvenser:
5
| pps В H
|
o L
Brilliance
Connect a milliamperemeter in series with 6D45
(5V).
Connect a 10 kohm resistor to pin 20 and pin 22 of
61C3.
Press e.g. “CD” on the operation panel: Now all
LEDs must be lit except the 7-digit display.
Adjust 6R58 until a reading of 275 mA is obtained.
Remove the 10 kohm resistor.
RF ADJUSTMENTS
Note! To facilitate the operation of the receiver
during the RF adjustments, set the receiver in the“
TEST MODE”.
“TEST MODE”: Short circuit the TEST MODE plug
on PCB4 and simultaneously connect the receiver to
the mains supply.
Remove the short-circuit on the “TEST MODE” plug.
In the “TEST MODE” the receiver can shift between
the frequencies used at the adjustments. Press 0 on
the operation panel, then press the numbers listed
below to choose the corresponding frequencies.
Bang &Olufsen
LW MW FM
Tryk: Frekvens Tryk: Frekvens Tryk: Frekvens
25 150 KHz 20 520 KHz 30 875 MHz
26 160 KHz 21 575 KHz 31 88,0 MHz
27 330 KHz 22 1000 KHz 32 108,0 MHz
28 350 KHz 23 1550 KHz
24 1610 KHz
Bándskift sker automatisk.
NB! Type 2664 FM frekvens-
omrade = 76,0-90,0 MHz.
FM (2964)
Tryk Frekvens
40 76,0 MHz
41 88,0 MHz
42 90,0 MHz
Udskiftning af FM-tuner
Ved udskiftning af FM-tuner er det kun nedvendigt
at justere MF-spolen 17L7.
MF
Tilslut et oscilloskop til ben 8 pa 2IC1.
En sweepgenerator tilsluttes antenneindgangen og
indstilles til 875 MHz.
Tryk 30 (875 MHz).
Justér 17L7 til max. og symmetrisk MF-kurve.
TUNER JUSTERINGER
(Kun hvis tuneren er fejljusteret)
Oscillator
Der skal ikke tilfejes signal.
Tilslut et DC-voltmeter mellem 17TP11 og ben 8 pá
tuneren.
Tryk 30 (875 MHz) og justér 17L8 til OV.
HF 87.5 MHz
Tilslut et oscilloskop til ben 8 pá 21C1.
En sweepgenerator tilsluttes antenneindgangen og
indstilles til 875 MHz.
Tryk 30 (875 MHz).
Justér 171.2, 1714, 17L5 og 17L7 til max. og symme-
trisk MF-kurve.
HF 108 MHz
Tryk 32 (108 MHz).
Sweepgeneratorens frekvens andres til 108 MHz, og
17R32, 17R33 og 17R34 justeres til max.
5-2
LW MW FM
Press: Frequency Press: Frequency Press: Frequency
25 150 KHz 20 520 KHz 30 875 MHz
26 160 KHz 21 575 KHz 31 88,0 MHz
27 330 KHz 22 1000 KHz 32 108,0 MHz
28 350 KHz 23 1550 KHz
24 1610 KHz
The frequency band shift
takes place automatically.
Note! “Type 2964 FM fre-
quency range = 76.0-90.0 MHz.
FM (2964)
Press: Frequency:
40 76.0 MHz
41 88.0 MHz
42 90.0 MHz
Replacement of FM tuner
When replacing an FM tuner, it is only necessary to
adjust the IF coil 17L7:
IF
Connect an oscilloscope to pin 8 of 2IC1.
Connect a sweepgenerator to the aerial input and
adjust it to 875 MHz.
Press 30 (87.5 MHz).
Adjust 17L7 to maximum and symmetrical IF curve.
TUNER ADJUSTMENT
(Only if the tuner is incorrectly adjusted)
Oscillator
Do not feed a signal.
Connect a DC voltmeter between I7TP11 and pin 8
on the tuner.
Press 30 (87.5 MHz) and adjust 17L8 to OV.
RF 87.5 MHz
Connect an oscilloscope to pin 8 of 2IC1.
Connect a sweepgenerator to the aerial input and
adjust it to 875 MHz.
Press 30 (875 MHz).
Adjust 17L2, 17L4, 17L5 and 17L7 to maximum and
symmetrical IF curve.
RF 108 MHz
Press 32 (108 MHz).
Change the frequency of the sweepgenerator to
108 MHz, and adjust 17R32, 17R33 and 17R34 to
maximum.
9-3
Detektor
Tilslut et oscilloskop til ben 8 ра 21С1.
Tilslut et DC-voltmeter mellem ben 9 pá 21C1 og
ben 14 pá 21С1.
En málesender tilsluttes antenneindgangen og ind-
stilles til 88 MHz.
Tryk 31 (88 MHz).
Finindstil mâlesenderens frekvens til min. forvræng-
ning af det 2. harmonisk i signalet, som vist pa
kurven.
RIGTIG
FORKERT
Justér 21.3 sd tat mod OV som muligt.
Efter detektor-justeringen skal FM-display-indike-
ring indstilles (se afsnit 7).
FM LF-output
En málesender tilsluttes antenneindgangen og ind-
stilles til mono, 88 MHz, 1mV EMF +/-75 KHz,
1kHz modulation.
Tilslut et LF-voltmeter til 2P26-3 (hejre) og 2P26-4
(venstre).
Tryk 31 (88 MHz).
Justér 2R84 (hojre) og 2R14 (venstre) til 1V RMS.
(Type 2963 justeres til 700 mV RMS).
Kanalseparation
En stereokoder (Encoder) tilsluttes antenneind-
gangen og indstilles til 88 MHz og umoduleret
signal i den ene kanal.
Tilslut et LF-voltmeter til den umodulerede kanat -
2P26-3 (hgjre) eller 2P26-4 (venstre).
Tryk 31 (88 MHz).
Justér 2R21 til min. signal i den umodulerede kanal.
Tilslut LF-voltmeteret til den anden kanal, og indstil
her stereokoderen til umoduleret signal.
Kontroller, om der er symmetrisk kanalseparation.
Hvis ikke, justér indtil dette opnés.
FM stop-niveau
En málesender tilsluttes antenneindgangen og ind-
stilles til 88 MHz, 10 uV EMF, +/-75 KHz.
Tilslut DC-voltmeter til ben 8 pa 2IC3.
avin
PU
Bang &Olufsen
Detector
Connect an oscilloscope to pin 8 of 21C1.
Connect a DC voltmeter between pin 9 of 2IC1 and
pin 14 of 2IC1.
Connect a signal generator to the aerial input and
adjust it to 88 MHz.
Press 31 (88 MHz).
Fine-tune the frequency of the signal generator to
minimum distortion of the second harmonic of the
signal, as shown on the curve.
CORRECT
INCORRECT
Adjust 2L3 as close to OV as possible.
After adjusting the detector, set the FM display indi-
cation (see section 7).
FM AF output
Connect a signal generator to the aerial input and
adjust it to mono, 88 MHz, 1mV EMF, +75 KHz,
1KHz modulation.
Connect an AF voltmeter to 2P26-3 (right) and
2P26-4 (left).
Press 31 (88MHz).
Adjust 2R84 (right) and 2R14 (left) to 1V RMS.
(Adjust type 2963 to 700 mV RMS).
Channel separation
Connect a stereo encoder to the aerial input and
adjust it to 88 MHz and an unmodulated signal in
one channel.
Connect an AF voltmeter to the unmodulated
channel -
2P26-3 (right) or 2P26-4 (left).
Press 31 (88 MHz).
Adjust 2R21 to minimum signal in the unmodulated
channel.
Connect the AF voltmeter to the other channel and
adjust the stereo encoder to an unmodulated signal
in the same channel.
Check whether there is symmetrical channel separa-
tion. If not, adjust until this is obtained.
Bang 8 Olufsen
Kortslut ben 17 pá 21C3 til stel.
Drej 2R12 mod uret til stop.
Tryk 31 (88 MHz).
Drej 2R12 med uret til ben 8 pá 21C3 skifter fra
hej til lav.
Kortslutningen pá ben 17 pá 21C3 fjernes.
Mono/stereo-skift
En málesender tilsluttes antenneindgangen og ind-
stilles til 88 MHz, 10 uV EMF, x75 KHz.
Tilslut et DC-voltmeter til ben 8 pd 2IC3.
Drej 2R8 mod uret til stop.
Tryk 31 (88 MHz).
Drej 2R8 med uret til 21C3 ben 8 skifter fra hoj til
lav.
AM
For at undgá indvirkning fra AGCen anbefales det
at kortslutte 1C12.
LW-oscillator
Der skal ikke tilfores signal.
Tilslut et DC-voltmeter til 1P34-1.
Tryk 25 (150 kHz).
Justér 11.4 til 2V £0,25V.
Tryk 28 (350 kHz).
Justér 1C36 til 25V+/-0,5V.
Gentag eventuelt proceduren.
MW-oscillator
Der skal ikke tilferes signal.
Tilslut et DC-voltmeter til 1P34-1.
Tryk 20 (520 kHz).
Justér 1L6 til 2V —0,2V.
Tryk 24 (1610 kHz).
Justér 1C24 til 25V+/-0,5V.
Gentag eventuelt proceduren.
AM MF
En sweepgenerator tilsluttes antenneindgangen og
indstilles til centerfrekvens 455 kHz 10 kHz.
Tilslut et oscilloscop til ben 13 pâ 1IC1.
Tryk 23 (1550 kHz) og kortslut 1R16.
Justér 1L2 og 1L3 til max. og symmetrisk MF-kurve.
Kortslutningen over 1R16 fjernes.
5-4
FM stop level
Connect a signal generator to the aerial input, and
adjust it to 88 MHz, 10 uV EMF, +75 KHz.
Connect a DC voltmeter to pin 8 of 2IC3.
Short-circuit pin 17 of 2IC3 to ground.
Turn 2R12 anticlockwise to stop.
Press 31 (88 MHz).
Press 2R12 clockwise until pin 8 of 2IC3 changes
from high to low.
Remove the short-circuit on pin 17 of 2IC3.
Mono/stereo change over
Connect a signal generator to the aerial input and
adjust it to 88 MHz, 10 uV EMF, +75 KHz.
Connect a DC voltmeter to pin 8 of 2IC3.
Turn 2R8 anticlockwise to stop.
Press 31 (88 MHz).
Turn 2R8 clockwise until pin 8 of 2IC3 changes
from high to low.
AM
To avoid interference from the AGC it is recom-
mended that 1C12 be short-circuited.
LW oscillator
Do not feed any signal.
Connect a DC voltmeter to 1P34-1.
Press 25 (150 kHz).
Adjust 114 to 2V +0.25V.
Press 28 (350 kHz).
Adjust 1C36 to 25V +/- 0.5V.
Repeat the above procedure, if necessary.
MW oscillator
Do not feed any signal.
Connect a DC voltmeter to 1P34-1.
Press 20 (520 кН»).
Adjust 1L6 to 2V +/- 0.2V.
Press 24 (1610 kHz).
Adjust 1C24 to 25V +/- 0.5V.
Repeat the above procedure, if necessary.
9-5
ANTENNEKREDSE
MW-antennekredsene skal justeres forst.
MW
En málesender tilsluttes antenneindgangen og ind-
stilles til 1550 kHz, 30% modulation.
Tilslut et oscilloskop eller et LF-voltmeter til ben 13
pá lICI1.
Tryk 23 (1550 kHz).
Justér 1C43 til max. udgangsniveau.
Málesenderens frekvens andres til 575 kHz.
Tryk 21 (575 kHz).
Justér 1L5 til max. udgangsniveau.
Gentag evt. proceduren.
LW
Maálesenderens frekvens andres til 330 kHz.
Tryk 27 (330 kHz).
Justér 1C40 til max. udgangsniveau.
Málesenderens frekvens andres til 160 kHz.
Tryk 26 (160 kHz).
Justér 1L1 til max. udgangsniveau.
Gentag eventuelt proceduren.
AM stop niveau
Kortslutningen over 1C12 fjernes.
En málesender tilsluttes antenneindgangen og ind-
stilles til 1 MHz, 30% modulation og 50 uV.
Tilslut DC-voltmeter til 1P34-3.
Tryk 22 (1000 KHz).
Justér 1R11 til spendingen pá 1P34-3 skifter fra hoj
til lav.
Apparatet bringes ud af » TEST-MODE«x ved at
netforsyningen afbrydes
Bang €: Olufsen
AM IF
Connect a sweepgenerator to the aerial input and
adjust it to centre frequency 455 kHz 10 kHz.
Connect an oscilloscope to pin 13 of 1IC1.
Press 23 (1550 kHz) and short-circuit 1R16.
Adjust 1L2 and 1L3 to maximum and symmetrical
IF curve.
Remove the short-circuit on 1R16.
AERIAL CIRCUITS
The MW aerial circuits must be adjusted first.
MW
Connect a signal generator to the aerial input and
adjust it to 1550 kHz, 30% modulation.
Connect an oscilloscope or an AF voltmeter to pin
13 of 1IC1.
Press 23 (1550 kHz).
Adjust 1C43 to maximum output.
Change the frequency of the signal generator to
575 kHz.
Press 21 (575 kHz).
Adjust 1L5 to maximum output.
Repeat the above procedure, if necessary.
LW
Change the frequency of the signal generator to 330
kHz.
Press 27 (330 kHz).
Adjust 1C40 to maximum output.
Change the frequency of the signal generator to 160
kHz.
Press 26 (160 kHz).
Adjust 1L1 to maximum output.
Repeat the above procedure, if necessary.
AM stop level
Remove the short-circuit on 1C12.
Connect a signal generator to the aerial input and
adjust it to 1 MHz, 30% modulation and 50 uV.
Connect a DC voltmeter to 1P34-3.
Press 22 (1000 KHz).
Adjust 1R11 until the voltage on 1P34-3 changes
from high to low.
Cancel the “TEST MODE” by disconnecting the
receiver from the mains supply.
Bang &Olufsen 6-1
ADSKILLELSE DISASSEMBLY
Betjeningspanel Operation panel
En tynd genstand presses op i hullet mærket med Insert a thin object in the hole on the bottom which
en pil pâ bunden. is marked with an arrow.
Betjeningspanelet presses samtidig mod venstre. At the same time, push the operation panel towards
the left.
Topplade Top panel
De fem skruer mærket À fiernes. Remove the five screws A.
Toppladen kan nu vippes op og fjernes. The top panel can now be removed by lifting it and
pulling it upwards.
Bund
Skruerne B i bunden fjernes.
Bunden kan nu aftages.
Bottom
Remove the screws B in the bottom.
The bottom can now be removed.
7-1
Bang &Olufsen
REPARATIONSTIPS REPAIR TIPS DS
Reparation i tuningssystemet Repairs in the tuning system
Tuningssystemet bestár af en tunings-IC (21C3), som The tuning system consists of a tuning IC (21C3)
danner henholdsvis en FM tuningsslojfe og en AM which makes an FM tuning loop and an AM tuning
tuningsslojfe. 21C3 styres af mikrocomputer- loop respectively. 21C3 is controlled by the micro-
systemet pá PCB4. computer system on PCB4.
. S81 FM FM Osc. Freq.
> TUNER
go т / Poo
и | Tuning Voltage | 19 | Microcomputer |
= | Integrator | 4 | |
= | 21C4 | < CLP | 14 |
=
= 2R35 71 -m | 2R45 22 oni > Data | 15| 416! |
| | Control | |
|
| y |
2R76 | a , 2R2 - 24 21C3 5 Data > В | —
| 2 | 4 |
| «CE | 32 |
au |
fo si 18 L---s----- -
PS /
= AM AM Osc Freq.
TUNER
Nedenstáende viser nogle metoder til at ábne In the following will be described some methods for
tuningsslojferne og kontrollere de forskellige blokke opening the tuning loops and checking the different
i slejferne. blocks in the loops.
Kontrol af integrator til tuningsspænding, 21C4. Checking the integrator for the tuning voltage, 21C4
FM: FM:
2R45 afmonteres. Remove 2R45.
Tilslut et DC-voltmeter til ben 7 pá 21C4. Modta- Connect a DC voltmeter to pin 7 of 21C4.
geren stilles i FM stilling. Set the receiver to FM.
Der monteres en 6,8 kohms modstand fra ben 6 pá Mount a 6.8 kohm resistor from pin 6 of 21C4 to m
21C4 til stel. Spendingen pá ben 7 pá 21C4 skal nu ground. The voltage on pin 7 of 21C4 must now rise
stige til ca. 30V. to approx. 30V.
Den ende af 6,8 kohms modstanden, der gär til stel, Move the end of the 6.8 kohm resistor which is
flyttes til +5V. Spendingen pä ben 7 pâ 2IC4 skal nu connected to ground to +5V. The voltage on pin 7 of
falde til ca. 0,7V. 21C4 must now fall to approx. 0.7V.
2R45 monteres igen. Remount 2R45.
AM: AM:
2R2 afmonteres. Remove 2R2.
Tilslut et DC-voltmeter til ben 1 pá 21C4. Modta- Connect a DC voltmeter to pin 1 of 21C4.
geren stilles 1 AM stilling. Set the receiver to AM.
Der monteres en 6,8 kohms modstand fra ben 2 pá Mount a 6.8 kohm resistor from pin 2 of 2IC4 to
21C4 til stel. Spaendingen pá ben 1 pá 2IC4 skal nu ground. The voltage on pin 1 of 21C4 must now rise
stige til ca. 30V. to approx. 30V. -
Den ende af 6,8 kohms modstanden, der gár til stel, Move the end of the resistor which is connected to
flyttes til +5V. Spaendingen pá ben 1 pá 21C4 skal nu ground to +5V. The voltage on pin 1 of 2IC4 must
falde til ca. 0,7V. now fall to approx. 0.7V.
2R2 monteres igen. Remount 2R2. —
Kontrol af oscillatorkredslobet og frekvenstalleren i
21C3.
Checking the oscillator circuit and the frequency
counter in 2IC3.
Bang &Olufsen
FM:
2R35 afmonteres. -
Tilslut en variabel DC stromforsyning til ben 8 pá
FM tuneren.
Tilslut en frekvensteeller til ben 19 pá 21C3.
Indstil modtageren til FM, 100MHz.
Nár DC stromforsyningen andres fra 3V til ca. 25V,
skal oscillator-frekvensen folge med, d.v.s. endre sig
fra 98,2 MHz til 118,7 MHz (fra 87,5 + 10,7 til 108
+ 10,7).
Tilslut et DC-voltmeter til ben 22 pá 21С3.
DC stromforsyningen reguleres ned indtil frekven-
stælleren viser en frekvens, der er lavere end 110,7
MHz. Ben 22 pá 21C3 skal nu veere lav. Stromforsy-
ningen reguleres op, indtil frekvenstælleren viser en
frekvens, der er hejere end 110,7 MHz. Ben 22 pá
21C3 skal nu veere hgj.
2R35 monteres igen.
AM:
2R76 afmonteres.
Tilslut en variabel DC stromforsyning til punkt A.
Tilslut en frekvenstæller til ben 18 pá 21C3.
Indstil modtageren til AM, 200 KHz (langbelge).
Nár DC stromforsyningen andres fra 2V til ca. 25Y,
skal oscillator-frekvensen folge med, d.v.s. endre sig
fra 605 KHz til 805 KHz
(fra 150 + 455 til 350 + 455).
Tilslut et DC-voltmeter til ben 21 pá 21C3.
DC stromforsyningen reguleres ned indtil frekven-
stælleren viser en frekvens, der er lavere end
655 KHz. Ben 21 pâ 2IC3 skal nu vere lav. Strom-
forsyningen reguleres op indtil frekvenstælleren
viser en frekvens, der er hojere end 655 KHz. Ben
21 pâ 2IC3 skal nu være hoj.
2R76 monteres igen.
Ovenstäende afprovning kan ogsâ gores i mellem-
bolge-frekvensomrádet, modtageren skal blot ind-
stilles til en mellemboelgefrekvens, f.eks. 1 MHz.
Mellembglge-frekvensomrade: 520 KHz til
1610 KHz. Mellemfrekvens 455 KHz.
Testfunktioner (TEST-MODE)
Beomaster 4500 bringes i »TEST-MODE« pa
folgende made:
Kortslut TEST-MODE stikket pá PCB4 og sat
samtidig netstikket i. Fjern kortslutningen pa TEST-
MODE stikket.
7-2
FM:
Remove 2R35.
Connect a variable DC power supply to pin 8 of the
FM tuner.
Connect a frequency counter to pin 19 of 2IC3.
Set the receiver to FM and a frequency of 100 MHz.
When the DC power supply is changed from 3V to
approx. 25V, the oscillator frequency must also
change, i.e. move from 98.2 MHz to 118.7 MHz
(from 87.5 + 10.7 to 108 + 10.7).
Connect a DC voltmeter to pin 22 of 2IC3.
Turn down the DC power supply until the frequency
counter shows a frequency which is lower than
110.7. Pin 22 of 2IC3 must now be low. Turn up the
power supply until the frequency counter shows a
frequency which is higher than 110.7. Pin 22 of 2IC3
must now be high.
Remount 2R35.
AM:
Remove 2R76.
Connect a variable DC power supply to point A.
Connect a frequency counter to pin 18 of 2IC3.
Set the receiver to AM and a frequency of 200 KHz
(long wave).
When the DC power supply is changed from 2V to
approx. 25V, the oscillator frequency must also
change, i.e. move from 605 KHz to 805 KHz (from
150 + 455 to 350 +455).
Connect a DC voltmeter to pin 21 of 2IC3.
Turn down the DC power supply until the frequency
counter shows a frequency which is lower than 655
KHz. Pin 21 of 2IC3 must now be low. Turn up the
power supply until the frequency counter shows a
frequency which is higher than 655 KHz. Pin 21 of
21C3 must now be high.
Remount 2R76.
The same test can also be carried out in the middle
wave frequency range. In that case the receiver
should be set to a middle wave frequency, e.g.
1 MHz.
Middle wave frequency range: 520 KHz to
1610 KHz. Intermediate frequency 455 KHz.
Test functions (TEST-MODE)
Set the Beomaster 4500 in the »TEST-MODE« in
the following way:
Short-circuit the TEST MODE plug on PCB4 and
simultaneously connect the receiver to mains.
Remove the short-circuit on the TEST MODE plug.
L PCB 6 BACK VIEW
TESTMODE
7-3
Der kan nu valges mellem nedenstidende testfunk-
tioner ved at trykke de tilsvarende tal pá betjenings-
panelet. Resultaterne af testfunktionerne udlæses pâ
displayet.
Funktion:
AM/FM display-indikering
Udlæsning af HF-version
Udlæsning af software version
ROM/RAM-test
Lysdiode-test
Sletning af RAM
Skift mellem HF modtager-
frekvenser
Tryk:
о NUE WoO
0-42
Beomaster 4500 bringes ud af » TEST-MODE« ved at
afbryde netspandingen.
0 AM/FM display-indikering:
FM display-indikering skal indstilles efter udskift-
ning af PCB4, 41C5, 4В1, 407, 4R66, PCB2, 2BP1,
2BP2 eller 2BP3 eller efter indgreb i FM detektor-
kredslobet.
AM display-indikering skal indstilles efter udskift-
ning af PCB4, 41C5, 4B1, 4D7 4R66, PCB1 eller
1BP1.
Bring apparatet i » TEST-MODE-«.
Tryk 7 (RAM sletning).
Tryk 0, nár »7« holder op med at blinke i displayet.
FM:
Indstil modtageren til en kendt station, f.eks.
96,0 MHz:
Tryk 2 (displayet viser 875 MHz FM).
Tryk GOTO.
Tryk > eller < til modtageren stopper pá den kendte
station, f.eks. 96,0 MHz (Bemærk! Displayet kan
vise en forkert frekvens).
Indtast nu den kendte frekvens, f.eks. 96,0 MHz:
Tryk PROGRAMMING.
Tryk GOTO.
Tryk den kendte frekvens, f.eks. 960.
Tryk STORE. Det sidste ciffer i displayet vil nu vise
et tal, hvis indstillingen er OK. Hvis displayet viser
----, er indstillingen ikke OK.
AM:
Tryk 1 (displayet viser 150 KHz AM eller 520 KHz
AM).
Tryk PROGRAMMING.
Tryk GOTO.
Tryk den frekvens der stir pd 1BP1 (450, 455 eller
460).
Bang &Olufsen
You can now choose between the following test func-
tions by pressing the appropriate digits on the
operation panel. The results of each test can be read
on the display.
Press: Function:
0 AM/FM display indication
3 Reading of RF version
4 Reading of software version
5 ROM/RAM test
6 LED test
7 Erasure of RAM
2 Change between RF receiver
frequencies
0-42
0 AM/FM display indication:
The FM display indication must be adjusted after
replacement of PCB4, 41C5, 4B1, 4D7, 4R66, PCB2,
2BP1, 2BP2 or 2BP3 and after servicing the FM
detector circuit.
The AM display indication must be adjusted after
replacement of PCB4, 41C5, 4B1, 4D7, 4R66, PCB1 or
1BP1.
Set the receiver in the “TEST-MODE”.
Press 7 (erasure of RAM).
When there is no longer a flashing “7” in the display,
press 0.
FM:
Set the receiver to a station for which you know the
exact frequency, e.g. 96.0 MHz:
Press 2 (the display shows 87.5 MHz FM).
Press GOTO.
Press > or < until the receiver finds the known
station, e.g. 96.0 MHz (NOTE! The display may
show a wrong frequency).
Now enter the exact frequency, e.g. 96.0 MHz:
Press PROGRAMMING.
Press GOTO. |
Press the known frequency, e.g. 960.
Press STORE. If the setting is OK, the last digit of
the display shows a number. If the setting is not OK,
the display shows ----. -
AM:
Press 1 ( the display shows 150 KHz AM or 520
KHz AM).
Press PROGRAMMING
Press GOTO.
Press the frequency which is stamped on 1BP1 (450,
455 or 460).
Bang & Olufsen
Tryk STORE. Displayet vil nu vise den indtastede
frekvens, hvis indstillingen er OK. Hvis displayet
viser ----, er indstillingen ikke OK.
3 Udlæsning af HF version:
Apparatet skal vaere i » TEST-MODE<«,
Tryk 3.
Display:
0= Europa (type 2961, 2962).
FM 875-108 MHz, efterbetoning 50 usS.
AM 150-350 KHz, 520-1610 KHz,
frekvens-step 9 KHz.
1= USA, Canada (type 2963).
FM 875-108 MHz, efterbetoning 75 uS.
AM 520-1610 KHz, frekvens-step 10 KHz.
2= Japan (type 2964).
FM 76-90 MHz, efterbetoning 50 uS.
AM 520-1610 KHz, frekvens-step 9 KHz.
3= Australien (type 2965).
FM 875-108 MHz, efterbetoning 50 uS.
AM 520-1610 KHz, frekvens-step 9 KHz.
4 Udlæsning af software version:
Apparatet skal vere i »TEST-MODE«
Tryk 4.
Display:
X.Y= en talværdi (f.eks. 1.40) som angiver, hvilken
version software (41C3) apparatet indeholder.
5 ROM/RAM test:
Apparatet skal være i »TEST-MODE«.
Tryk 5.
Display:
1-11= 1 — 1 1
ROM (4IC3) RAM (4IC1 КАМ (41С5)
og/eller
41C4)
Hvis displayet udelukker et af tallene, er der fejl i
den pâgældende IC.
6 Lysdiode test:
Apparatet skal være i >TEST-MODEx<.
Tryk 6.
Alle lysdioder og displays tændes i 6 sekunder,
hvorefter alle slukker, undtagen én.
7-4
Press STORE. If the setting is OK, the display
shows the frequency you have entered. If the setting
is not OK, the display shows ----.
3 Reading of RF version:
The receiver must be in the » TEST-MODE<«.
Press 3.
Display:
0 = Europe (type 2961, 2962).
FM 875-108 MHz, deemphasis 50 uS
AM 150-350 KHz, 520-1610 KHz,
frequency step 9 KHz.
1= USA, Canada (type 2963).
FM 875-108 MHz, deemphasis 75 uS
AM 520-1610 KHz, frequency step 10 KHz.
2= Japan (type 2964).
FM 76-90 MHz, deemphasis 50 uS.
AM 520-1610 KHz, frequency step 9 KHz.
3= Australia (type 2965).
FM 875-108 MHz, deemphasis 50 uS.
AM 520-1610 KHz, frequency step 9 KHz.
4 Reading of software version:
The receiver must be in the “TEST-MODE”.
Press 4.
Display:
x.y = a number (e.g. 1.40) indicating which version
software (4IC3) is mounted in the receiver.
5 ROM/RAM test:
The receiver must be in the “TEST-MODE”,
Press 5.
Display
111= 1 — 1 1
ROM(4IC3) RAM(4IC1 RAM(41C5)
and/or
41C4)
If the display leaves out one of the numbers, there
is a fault in the IC in question.
6 LED test:
The receiver must be in the » TEST-MODE<«.
Press 6.
All LEDs and displays are lit for 6 seconds, then all
go out except one.
7-5
7 Sletning af RAM(4ICS5):
Ved RAM-sletningen slettes alle indlæste AM og FM
programmer. Balance, bas, diskant og loudness
bliver sat til 0 og volume bliver sat til 40. Options
bliver sat til 1.5 og TAPE2 (ang. options se igvrigt
tekniske specifikationer, afsnit 1).
Sletning af RAM skal foretages efter udskiftning af
PCB4, 41C5, 4B1, 4D7 eller 4R66.
Apparatet skal vere i » TEST-MODE<«.
Tryk 7.
20-42 Apparatet kan skiftes mellem nogle givne
modtager-frekvenser:
Apparatet skal vere i » TEST-MODE«
Tryk 0.
Tryk nedenstáende tal for valg af den tilherende
frekvens.
MW LW FM
Tryk: Frekvens Tryk: Frekvens Tryk: Frekvens
20 520 KHz 25 150 KHz 30 87,5 MHz
21 575 KHz 26 160 KHz 231 88,0 MHz
22 1000 KHz 27 330 КН: 32 108,0MHz
23 1550 KHz 28 350 KHz 24 1610KHz
Bandskift sker automatisk.
Type 2964 FM frekvensomrade = 76,0-90,0 MHz.
FM(2964)
Tryk: Frekvens
40 76,0 MHz
41 88,0 MHz
42 90,0 MH
Montering af FM PCB
Montering af PCB2, bestillingsnr. 8001056.
Montering i type 2961 og 2962 (Europa):
J4, R101 og R102 skal afmonteres.
C5 og C76 skal ændres til 470 pF
Med R14 og R84 omjusteres LF output, se side 5-3.
Montering i type 2965 (Australien):
J4, R101 og R102 skal afmonteres.
C5 og C76 skal ændres til 470 pF.
J46 skal monteres.
Med R14 og R84 omjusteres LF output, se side 5-3.
Kalkpletter pâ aluminiumsoverflader
Eventuelle kalkpletter pá aluminiumsoverfladerne
som felge af indtorrede vanddráber kan fjernes med
et kalkoplesningsmiddel, f.eks. 30% eddikesyre.
Bang 8 Olufsen
7 Erasure of RAM (4IC5):
When the RAM is erased, all preset AM and FM
stations are cancelled. Balance, bass, treble and
loudness will be set at 0 and volume will be set at
40. Options are set to 1.5 and TAPEZ ( for further
information about Options, see technical specifica-
tions, section 1).
RAM must be erased after replacement of PCBA,
41C5, 4B1, 4D7 or 4R66.
The receiver must be in the “TEST-MODE”.
Press 7.
20-42 The receiver can change between certain
given receiver frequencies.
The receiver must be in the »TEST-MODE-.
Press 0.
Press the following digits for choosing the corres-
ponding frequencies.
MW LW FM
Press: Frequency Press: Frequency Press: Frequency
20 520 KHz 25 150 KHz 30 87.5 MHz
21 575 KHz 226 160 KHz 31 88.0 MHz
22 1000 KHz 27 330 KHz 32 108.0MHz
23 1550 KHz 28 350 KHz
24 1610 KHz
The frequency band shift takes place automatically.
Type 2964 FM frequency range = 76.0-90.0 MHz.
FM (2964)
Press: Frequency:
40 76.0 MHz
41 88.0 MHz
42 90.0 MHz
Mounting FM PCB
Mounting PCB2, part no. 8001056.
For mounting in type 2961 and 2962 (Europe):
Remove J4, R101 and R102.
Change C5 and C76 to 470 pF.
Using R14 and R84, adjust LF output, see page 5-3.
For mounting in tupe 2965 (Australia):
Remove J4, R101 and R102.
Change C5 and C76 to 470 pF.
Mount J46.
Using R14 and R84, adjust LF output, see page 5-3.
Lime stains on aluminium surfaces
Lime stains on the aluminium surfaces, caused by
dried water drops, can be removed by a lime
dissolving solution, e.g. 30% acetic acid.
Bang &Olufsen
ISOLATIONSTEST
Ethvert apparat skal isolationstestes, efter at det har
været adskilt. Testen udfores, nâr apparatet er
samlet igen og er klar til udlevering til kunden.
Der ma ikke forekomme overslag under testen!
Isolationstesten udfores ра felgende made:
De to stikben pá netstikket kortsluttes og tilsluttes
den ene af terminalerne pá isolationstesteren. Den
anden terminal tilsluttes stelbenet ¡ hovedtelefon-
stikdásen.
OBS!
For at undgá beskadigelser af apparatet er det
vigtigt, at begge terminaler pá isolationstesteren har
virkelig god kontakt.
Spaendingsreguleringen pá isolationstesteren drejes
langsomt op, indtil en spending pá 1,5-2 kV er
opnaet. Her skal den holdes i ét sekund, hvorefter
der langsomt drejes ned for spazendingen igen.
8-1
INSULATION TEST
Each set must be insulation tested after having been
dismantled. Make the test when the set has been
reassembled and is ready to be returned to the
customer.
Flashovers must not occur during the testing proce-
dure!
Make the insulation test as follows:
Short-circuit the two pins of the mains plug and
connect them to one of the terminals of the insula-
tion tester. Connect the other terminal to the chassis
pin of the headphone socket.
NOTE!
To avoid damaging the set it is essential that both
terminals of the insulation tester have good contact.
Slowly turn the voltage control of the insulation
tester until a voltage of 1.5-2 kV is obtained. Main-
tain that voltage for one second, then slowly turn it
down again.
Beomaster 3500
Type 2966-2967-2968-2969-2970
SERVICEANVISNING
SERVICE MANUAL
Bang &Olufsen
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BEOMASTER 3500, TYPE 296X
List of Electrical parts
PCB04, 8001220
MICROCOMPUTER
IC3 8341350 IC EPROM
See drawings on pages 4-2
List of Mechanical parts
9008 3458723 Top Plate
9012 3114361 Chassis
Bemærk!
Returner mikroprocessormodulet, bestillingsnr.
8001220 for ombytning, hvis Beomaster 3500-dis-
playet viser CODE.
Undga ved servicering pa PCB4 at fjerne eller kort-
slutte forsyningsspændingen fra lithium-batteriet til
den statiske RAM, pos. 41C5.
Hvis det sker slettes dataerne i RAM og Beomaster
3500 viser CODE i displayet.
Bemerkung!
Das Mikroprozessor-Modul, Bestell Nr. 8001220 fiir
Umstausch zuriicksenden, falls die Beomaster 3500-
Anzeige CODE zeight.
Die Versorgungsspannung von der Lithiumbatterie
zum statischen RAM, Pos. 4IC5, bei Service auf dem
PCB4 nicht entfernen oder kurzschliessen.
Falls die passiert werden die Daten in RAM annul-
liert und Beomaster 3500 zeigt CODE in der
Anzeige. |
Note!
Return the microprocessor module, part no.
8001220, for replacement if the Beomaster 3500 dis-
plays CODE.
When servicing PCB4 avoid removing or short-cir-
cuiting the supply voltage from the lithium battery
to the static RAM, pos. 41C5.
If this happens the data in the RAM are erased and
Beomaster 3500 displays CODE.
Observer!
Retourner le module microprocesseur, no. 8001220
pour remplacement si lindicateur de Beomaster
3500 marque CODE.
Au service de PCB4 ne pas enlever ou court-circui-
ter le tension d'alimentation de la batterie lithium
pour le RAM statique, pos. no. 41C5.
Si se passe les informations du RAM son annullées
et le Beomaster 3500 marque CODE.
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