Bang & Olufsen Beogram CD 5500 Service Manual page 5

Bang &Olufsen
DIAGRAMFORKLARING
Pa diagrammet er der angivet typenumre pa transi-
storer og IC'er i de tilfeelde hvor typenummeret er
entydigt for komponentens placering i kredslobet —
feks. TR20/BC 557B
Hvis positionsnummeret er efterfulgt af en stjerne
skal reservedelsnummeret benyttes, da denne
komponent er specielt udvalgt - feks. TR102*.
Ledningsforbindelser
Ledningsforbindelserne pa diagrammet er samlet i
»bundter«, De enkelte ledninger er forsynet med
koder, der fortzeller hvortil de gar.
INTERN FORBINDELSE
PA EN DIAGRAMSIDE
FORBINDELSE TIL EN ANDEN
DIAGRAMSIDE
DIAGRAM A
| i
a 32
Een Cees
Forsyningsspeendinger
En pil og spendingen viser, hvor forsyningsspendin-
gerne gar ind i et print.
Symbol for sikkerhedskomponenter
2-1 2-1
EXPLANATION OF DIAGRAM
Type numbers of transistors and IC's have been indi-
cated on the diagram in those cases where the type
number is unambiguous for the position of the
component in a circuitry ~ eg. TR20/BC 557B.
If the position number is followed by an asterisk the
spare part number must be used because this
component has been expecially selected - e.g. TR102*.
Wiring Connections
The wiring connections on the diagram are
assembled in "bundles". The individual wires are
coded to indicate to where they are leading.
INTERNAL CONNECTION
ON ONE DIAGRAM PAGE
Internal connections on a diagram page are indicated
by a number. The bend of the wire indicates in which
direction the other end of the wire may be found.
CONNECTION TO ANOTHER
DIAGRAM PAGE
DIAGRAM C
l
A32 AB
pores Dee an
Supply Voltage
An arrow and the voltage show where the supply
voltages are fed to a PCB.
Example: Next to the supply voltage it says eg. a
CON. This means that this arrow, and thus the supply
goes to 7 different places on this diagram pages (7
CON. = 7 connections).
Symbol for Safety Components
AN