Daktronics DF-1050/1051/1052/1053 - Manual (Page 8)

1-2 Introduction
All references to drawing numbers, appendices, figures or other manuals are
presented in bold typeface, as shown below:
“Refer to Drawing A-69945, in Appendix A for the power supply location.”
In addition, any drawings referenced within a particular section are listed at the
beginning of that section as shown in the following example:
Reference Drawing:
Component Placement Diagram............................. Drawing A-69945
Daktronics displays are built for long life and to require little maintenance. However,
from time to time, certain display components will need to be replaced. The
Replacement Parts List in Section 4.5 provides the names and part numbers of
components that you may need to order during the life of this display. Most display
components have a white label that lists the part number. The component part
number is in the following format: 0P-____-____ (circuit board) or 0A-____-____
(multi-component assembly).
Following the Replacement Parts List is an explanation of the Daktronics
Exchange and Repair and Return Programs. Refer to these instructions if any
display component needs replacement or repair.
1.1 Safety Precautions
Important Safeguards:
1. Read and understand these instructions before installing the
display.
2. Do not drop the control console or allow it to get wet.
3. Be sure the display is properly grounded with a grounding
electrode at the display location.
4. Disconnect power to the display when it is not in use.
5. Disconnect power when servicing the display.
6. Do
not modify the display structure or attach any panels or
coverings to the display without the written consent of Daktronics,
Inc.
Figure 1: Daktronics Drawing Label