Transformer - Bang & Olufsen Type 2651 Service Manual

Bang &Olufsen
6 - 7
DISASSEMBLY
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PCB 8 CD
- Remove the rear panel.
- Remove the two transport screws
for CD as well as the two screws
holdi ng t he metal rea r p la t e .
- Loosen the spring-loaded pins,
and push upwards and out of the
holder (watch out for the flat
c able t o t he C D driv e me c h a n is m ).
PCB 9 Gear sensor
See Gearbox.
PCB 10 Mains
- Remove the rear panel.
- Remove the Tape/Keyboard front
f r am e.
- Re mo v e t he plugs 10P 1 0 , 1 0 P 1 1
and 10 P 12 as w el l as the sc re w
h o l d i n g P C B 1 0 .
- Remove the five screws holding
the transformer.
- P ull P CB 10 bac k w ard s a n d o u t o f
t he produc t by pulli ng c a u ti o u sly
at the transformer.
PCB 11 RE-deck electronics
- Remove the Tape/Keyboard front
frame.
- Remove the three screws holding
the cover plate, and take out the
t ape t r ans port mec han is m . PC B 1 1
is located at the very top of the
tape transport mechanism.
PCB 12 Oscillator
See PCB 7 Tape.
PCB 17 Front end
See PCB 1 Tuner.
PCB 20 Door sensor
See CD front frame.
PCB 21 Active antenna
S e e Handl e.
PCB 22 Active filter
S e e P CB 2 A m pli f i er.
PCB 8 CD
- Ruckwandteil entfernen.
- Die beiden Transportschrauben
fur den CD-Teil sowie die beiden
S ch ra u b e n , d i e d i e R u c k p l a t t e a u s
Metall festhalten, entfernen.
- Federzapfen losen und
a n s c h l i e B e n d n a ch o b e n u n d a u s
d e r H a l te ru n g h e ra us d r u c k e n (a u f
d a s F l a ch ka b e l fu r d a s C D-
Laufwerk achten!).
PCB 9 Getriebefiihler (Gear
Sensor)
Si e h e h ie rzu Ge t ri e b e .
PCB 10 Netzteil (Mains)
- Ruckwandteil entfernen.
- Tape/Keyboard-Frontrahmen
entfernen.
- Ste ckve rb i n d u n g e n 1 0 P 1 0 , 1 0 P 1 1
u n d 1 OP 1 2 so w i e d i e S c h r a u b e , d i e
PCB 10 festhiilt, abmontieren.
- Die 5 S ch ra u b e n , d i e d e n
Tra nsformator festha lten,
a b mo n ti e re n .
- Du r ch vo rsich t i g e s Z i e h e n a m
Transformator PCB 10 nach hinten
a u s d e m Ge r d t h e r a u s z i e h e n .
PCB 11 'RE-Deck elektronic'
- Tape/Keyboard-Frontrahmen
entfernen.
D ie 3 S ch ra u b e n , d i e d i e
Abdeckplatte halten, entfernen
und das Tape-Laufwerk
herausheben. PCB 11 sitzt ganz
oben auf dem Tape-Laufwerk.
PCB 12 Oszillator
Si e h e h ie rzu P C B 7 T a p e .
PC B 1 7 ' F ro n t E n d '
Si e h e h ie rzu P C B 1 T u n e r .
PCB 20 Tiirfiihler (Door Sensor)
S ie h e h ie rzu C D - Fr o n tr a h m e n .
PCB 21 Aktivantenne (Active
Antenna)
S ie h e h ie rzu H a n d g ri f f.
PCB 22 Aktivfilter (Active Filter)
Siehe hierzu PCB 2 Verstdrker
( Am p lif ie r).
Carte "PCB 8 CD" (platine laser)
- Deposer la face arridre.
- Enlever les deux vis de transfert du
C D a i n s i q u e l e s d e u x v i s
m a i n te n a n t l a p l a q u e m e t a l l i q u e
a r r i d r e .
- Enfoncer les ergots elastiques et
repousser la carte vers le haut pour
la sortir de son support (farc
attention au c6ble en nappe reli6
a u m 6 c a n i s m e d ' e n tr a i n e m e n t d u
q D .
Carte "PCB 9 Gear sensor"
(capteur de pignonnerie)
V o i r p i g n o n n e r i e .
Carte "PCB 1O Mains" (secteur)
- Deposer la face arridre.
- Deposer le panneau frontal
decoratif de la platine-cassettes et
d u c l a v i e r .
D 6 b ra n c h e r l e s fi c h e s 1 0 P 1 0 ,
1 0 P 1 1 e t 1 0 P 1 2 e t e n l e v e r l a v i s
m a i n t e n a n t l a c a rt e P C B 1 0 .
- E n l e v e r l e s 5 v i s m a i n t e n a n t l e
transformateur.
- S o r t i r l a c a r t e P C B 1 0 d e l ' a p p a r e i l
en extrayant prudemment le
transformateur.
Carte "PCB 11 RE-deck
electronic"
D6poser le panneau frontal
decoratif de la platine-cassettes et
d u c l a vi e r .
E n l e v e r l e s 3 v i s m a i n t e n a n t l a
plaque de protection et soulever
le m6canisme d'entrainement de
la cassette. La carte PCB 11 est
l o g e e s u r l e h a u t d u m e c a n i s m e .
Carte "PCB 12 Oscillator"
(oscillateur)
V o i r " P C B 7 T a p e " .
Carte "PCB 17 Front end"
V o i r " P C B 1 T u n e r" .
Carte "PCB 2O Door sensor"
(6metteur-r6cepteur
de la porte)
Voir "panneau frontal decoratif de
l a p l a t i n e l a s e r " .
Carte "PCB 21 Active antenna"
(antenne active)
V o i r " p o i g n e e " .
Carte PCB 22 Active filter (filtre
actif)
V o i r " P CB 2 A m p l i f i e r" .
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