TWR Lighting E-1DBSL Manual page 21

DUAL MEDIUM INTENSITY LED/STROBE
4.0 TROUBLESHOOTING
Much of the troubleshooting of this system will consist of correcting a "beacon out"
situation. There may also be a failure mode where the flashtube is still flashing, but at the
wrong rate or the wrong intensity.
You must study and understand the safety messages and the theory of operation before
attempting any service on this system. Servicing this system must be done by qualified
personnel only.
***W A R N I N G – H I G H – V O L T A G E***
THIS SYSTEM OPERATES AT HIGH VOLTAGE LEVELS THAT COULD BE LETHAL
TO SERVICE PERSONNEL. ALL INSTALLATION AND MAINTENANCE WORK MUST
BE DONE BY QUALIFIED SERVICE PERSONNEL. READ AND UNDERSTAND THE
THEORY OF OPERATION AND ITS SAFETY MESSAGES BEFORE ATTEMPTING
INSTALLATION OF THIS SYSTEM. DO NOT ATTEMPT TO DEFEAT THE INTERNAL
SAFETY DEVICES.
4.1 TOOL REQUIREMENTS
In order to be prepared to troubleshoot or repair this system, a minimum amount of tools and
equipment will be required. A recommendation list includes:
1) 5/16 Flat Electrician's Screwdriver
1) Nut Driver or Socket Set
1) VOM with 600V AC / 1,000V DC range and a 40M ohm scale
4.2 DIAGNOSTIC EVALUATION
The first step in troubleshooting of this system or performing annual maintenance will
require the technician to open the controller door. With the power off to the controller, the
technician shall look over the controller circuit, and repair or replace any apparent problems,
such as loose wire connections, or corroded terminations. After the initial visual checks
have been completed, restore power to the controller and pull out on the plunger of the
cabinet safety switch (CSS), which is located at the lower right edge of the enclosure.
Observe at this time the LEDs located on PCB #1, and PCB #2. Determine, by observation
of these LED indicators, if the controller is performing in normal operation.
M.2006 MANUALS.E-1DBSL
REV. 08/10/04, 12/09/05, 2/08/06, 04/11/06 (load resistor)
REV. 06/21/06 (part numbers), 7/13/06 (Appendix & 6.0 Major Comp. List)
REV 10/20/06 (Appendix & parts lists)
REV. 04/10/07 (text)
MODEL E-1DBSL
16