Daktronics Galaxy AF-3050 Series, Display Manual

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1.5 Daktronics Nomenclature
To fully understand some Daktronics
drawings, such as schematics, it is
necessary to know how various
components are labeled in those
drawings. This information is also
useful when trying to communicate
maintenance or troubleshooting efforts.
Introduction
1-5
A module is the building block of the
Galaxy sign. Each module measures 16
pixels high by 16 pixels wide. By placing modules side-by-
side and on top of one another a sign of any size can be
designed and built. Individual modules can be easily
removed from the sign if required.
Figure 4 above
illustrates how Daktronics numbers modules on a Galaxy
sign.
Figure 5 on the right breaks down the module
numbering method.
Figure 4: Module Numbering Example – 24x80 Front
The label “A” on a drawing typically denotes an assembly.
An assembly can be a single circuit board or a collection of
components that function together, usually mounted on a single plate or in a single enclosure.
Assemblies are divided into two types: those that route signal and those that route power.
Figure 5: Module Numbering
In addition, the following labeling formats might be found on various Daktronics drawings:
· “TB_ _” indicates a termination block for power or signal cable.
· “F_ _” signifies a fuse.
· “E_ _” stands for a grounding point.
· “J_ _” represents a power or signal jack.
· “P_ _” symbolizes a power or signal plug for the opposite jack.
Finally, Daktronics part numbers are commonly found on drawings. Those part numbers can be used
when requesting replacement parts from Daktronics Customer Service. Take note of the following part
number formats:
· “0P-_ _ _ _-_ _ _ _” designates an individual circuit board, such as a line receiver.
· “0A-_ _ _ _-_ _ _ _” indicates an assembly, such as a circuit board and the plate or bracket to
which it is mounted. A collection of circuit boards working as a single unit may also carry an
assembly label.
0P-1195-0001
SN: 6343
05/19/99 REV.1
Figure 6: Typical Label
·
“W-_ _ _ _” denotes a wire or cable. Cables may also carry the
assembly numbering format in certain circumstances. This is
especially true of ribbon cables.
·
“F-_ _ _ _” specifies a fuse.
Most circuit boards and components within this sign carry a label that lists the part number of the unit.
If a circuit board or assembly is not listed in the replacement parts list in
Section 4 , use the label to
order a replacement. A typical label is shown in Figure 6 above. The part number is in bold.