Daktronics AF-3090-89-R,A - Manual (Page 11)

Introduction
1-6
Pixel Strip: four LED pixels mount directly onto a pixel strip. Each pixel strip is removable from the
module.
1.5 Daktronics Nomenclature
To fully understand some Daktronics
drawings, such as schematics, it is
necessary to know how those drawings
label various components. This
information is also useful when trying to
communicate maintenance or
troubleshooting efforts.
A module is the building block of the
Galaxy sign. Each module measures 8 pixels high by 8
pixels wide. By placing modules side-by-side and on top of
one another, Daktronics can design and build signs of any
size. A person can easily remove individual modules from
the sign if required. Figure 3 illustrates how Daktronics
numbers modules on a Galaxy sign. Figure 4 breaks down
the module numbering method.
The label “A” on a drawing typically denotes an assembly.
An assembly is a single circuit board or a collection of
components that function together and usually mount on a
single plate or in a single enclosure. Daktronics divides assemblies into two types, those that route
signal and those that route power.
In addition, various Daktronics drawings may contain the following labeling formats:
• “TBXX” denotes a termination block for power or signal cable.
• “FXX” denotes a fuse.
• “EXX” denotes a grounding point.
• “JXX” denotes a power or signal jack.
• “PXX” denotes a power or signal plug for the opposite jack.
Finally, drawings commonly have Daktronics part numbers. You can use those part numbers when
requesting replacement parts from Daktronics Customer Service. Take note of the following part
number formats.
• “0P-XXXX-XXXX” denotes an individual circuit board, such as a line receiver.
• “0A-XXXX-XXXX” denotes an assembly, such as a circuit board and the plate or bracket to
which it mounts. A collection of circuit boards working as a single unit may also carry an
assembly label.
• “W-XXXX” denotes a wire or cable. Cables may also carry the assembly
numbering format in certain circumstances. This is especia lly true of
ribbon cables.
• “F-XXXX” denotes a fuse.
Most circuit boards and components within this sign carry a label that lists the part number of the unit.
If the replacement parts list in Section 4.15 does not list a circuit board or assembly, use the label to
order a replacement. Figure 5 illustrates a typical label. The part number is in bold.
Figure 3: Module Numbering Example – 24x80 Front
Figure 4: Module Numbering
Figure 5: Typical Label