Daktronics AF-3065-34-RGB - Manual (Page 12)

Module Latch Assembly: device utilizing a rotating retainer bar to hold the module firmly to the
display frame. There are two per module: one near the top and one near the bottom. Use a
c² Allen
wrench to turn the retaining bar.
Pixel: a cluster of LEDs. The number and color of the LEDs depends on display application.
1.6 Daktronics Nomenclature
Figure 5: Module Numbering Example – 24x80 Front
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.
Figure 6: Module Numbering
A module is the building block of the Galaxy display. Each
module measures 8 pixels high by 8 pixels wide. By placing
modules side-by-side and on top of one another a display of any
size can be designed and built. Individual modules can be easily
removed from the display if required. Figure 5 illustrates how
Daktronics numbers modules on a Galaxy display. Figure 6
breaks down the module numbering method.
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.
In addition, the following labeling formats might be found on various Daktronics drawings:
· “TB??” denotes a termination block for power or signal cable.
· “F??” denotes a fuse.
· “E??” denotes a grounding point.
· “J??” denotes a power or signal jack.
· “P??” denotes 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-????-????” denotes an individual circuit board, such as a line
receiver.
Introduction 1-6
· “0A-????-????” denotes 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.
· “W-????” denotes a wire or cable. Cables may also carry the
assembly numbering format in certain circumstances. This is especially true of ribbon cables.
0P-1195-0001
SN: 6343
05/19/99 REV.1
Figure 7: Typical Label
Most circuit boards and components within this display 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 7. The part number is in bold.