Tektronix 5441 Instruction Manual page 90

TROUBLESHOOTING
The following information is provided to help troubleshoot this instrument. Information contained in other sections of this
manual should be used along with the following information to aid in locating the defective component. An understanding of the
circuit operation is very helpful in locating troubles.
T R O U B L E S H O O T I N G
AIDS
Wiring Color Code
Diagrams
Circuit diagrams are given on foldout pages in Section 8.
The component number and electrical value of each compo-
nent in this instrument is shown on the diagrams.
Circuit-board Illustrations
Circuit-board illustrations are shown on the foldout page
preceding the associated diagram. Each board-mounted
electrical component is identified by its cirguit number, as
are interconnecting wires and connectors.
Insulated wire and cable used in this instrument is color-
coded to facilitate circuit tracing.
Semiconductor Basing
Figure 5-2 illustrates the basing configuration for all semi-
conductors used in this instrument. Some plastic-case tran-
sistors have lead configurations that do not agree with
those shown here. If a replacement transistor is made by a
different manufacturer than the original, check the manufac-
turer's basing diagram. All transistor sockets in this instru-
ment are wired for the standard basing used for metal-case
transistors.
PlrsticCased Transistors
m m o m m m m m m m m m m m o m m o m m o m m m m m o m m m o o o o m m o m m o o o o m m o o m o m
Heat dioipator
(may be appliad
to some metal-
casad transinon)
Power Transistors
Fig. 5-2. Electrode configuration data tor semiconductor devices.
REV MAY 1982