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Explanation of diagram
Component print and coordinate system
Control circuit
Wiring connections
INTERNAL CONNECTION ON
ONE DIAGRAM PAGE
CONNECTION TO ANOTHER
DIAGRAM PAGE
Ground symbols
Symbol of safety components
Type numbers of transistors and ICs are indicated on the diagrams. If the position
is followed by an asterisk the spare part number must always be used because the
component in question has been specially selected, e.g. IC4*.
The largest PCBs have component prints and a coordinate system on both the
primary and the secondary 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.
= C27 is placed on the primary side in coordinate 1A.
= R10 is placed on the secondary side in coordinate 2B.
In certain control circuits the active mode is indicated 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.
The wiring connections on the diagrams are assembled in 'bundles'.
The individual wires are provided with one of the following codes:
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 is
found.
DIAGRAM A
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.
Three different ground symbols are used in the set.
= Ground
= Chassis
= Coarse ground
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.
Explanation of diagram
DIAGRAM C
2.1
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