Daktronics C44 - Manual (Page 9)

Introduction 1-1
Section 1: Introduction
1.1 How to Use this Manual
The Daktronics C-44
™
timer system utilizes the latest in microprocessor technology and is
designed and manufactured for reliability, easy service and long use.
This manual is designed to explain installation and operation of the Daktronics C-44 Drag
Race Timer. Details for display maintenance are also given. Follow all instructions as given
in the text. All instructions are given in a logical order for best installation and operation. For
questions regarding the safety, installation, operation or service of this system, please refer to
the telephone numbers listed on the cover page of this manual.
Important Safeguards:
1. Read and understand installation instructions before installing.
2. Do not drop the control console or allow it to get wet.
3. Opening or disassembly of equipment by non-qualified personnel can void the
warranty.
4. Do not disassemble the control console or the electronic controls of the display
unless you are qualified to do so and there is need for equipment to be installed or
serviced or the warranty will be void.
5. Disconnect power from the unit when not in use, or when servicing.
6. Disconnect cables from the back of the C-44 race controller at the end of the day or
when lightning is occurring in the area.
7. If field cabling is to remain connected to the isolation interface when not in use. The
isolation interface should be powered down via the front panel switch and must
remain plugged in to a three-conductor earth grounded outlet (to provide a discharge
path to ground for any voltage surges picked up by field cabling).
The box below is an illustration of Daktronics drawing numbering system. The drawing
number “7087-P08A-69945” is how Daktronics identifies individual drawings. This number
is located in the bottom right corner of the drawing. The manual will refer to drawings by the
last five digits and the letter preceding them. In the example, the drawing would be referred to
as Drawing A-69945. All drawings referred to as such will be inserted at the end of each
section unless otherwise specified.