4.3.2 Control Power On Led - Out; 4.3.3 Primary Timing Led - Out; 4.3.5 Ledbeacon/Flasher Failure - TWR Lighting E-1DBSL Manual

DUAL MEDIUM INTENSITY LED/STROBE

4.3.2 Control Power on LED - Out

4.3.3 Primary Timing LED – Out
4.3.4 False or Nonexistent Strobe Alarm (SF)

4.3.5 LEDBEACON/Flasher Failure

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
Check interlock circuit for an open circuit. If open, make the necessary
repairs. If okay, check fuse F3 in the cabinet. Replace if bad.
Observe the status of the timing LED8. If the LED is dim or out completely,
check LED9, and if dim or out, replace PCB #1. If one or both are lit, you
should have timing.
4.3.4.1 If alarm trips when the system appears to be working normally, or
fails to show an alarm when there is an obvious failure, replace
PCB #1.
4.3.4.2 Check relay K11 coil for an open condition. Normal resistance
should be around 2K ohm. If coil is open, replace K7.
4.3.4.3 The time delay between an actual failure and the point where the
relay trips is pre-set at the factory at about eight (8) seconds.
This delay period can be tested by throwing "on" switch S1 (on
the circuit board #1). When this switch is in the alarm test mode,
the flash verified indicator (LED#1) will not be illuminated.
In case a failure occurs in the red beacon portion, either the LED Beacon or
flasher failed. The system will operate in the failsafe mode, and have beacon
fail alarm at the P12 plug. Pin #8 is common, P#7 is closed, and P#9 is open.
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