Flash Technology VANGUARD FTS 370d, Reference Manual

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FTS 370d/w/r Revision 10 – 1/09/2015 79
Table 5-3 – Troubleshooting - Flashhead.
Step Check/Test/Action Action
3.a Is the correct voltage present in the flashhead?
Measure at flashhead terminal block DC+ & DC-
(60 VDC).
Note: If a marker tier is connected between the
SC 370 and the flashhead, verify that the correct
input and output voltage is present on TB1 of the
marker interface box before proceeding to the
flashhead.
Yes
No Go to Step 3.b
Inspect flashhead cable and
connections.
3.b Is voltage present on the output of Surge PCB
located in the base of the flashhead?
Measure at J02 DC+ (2 terminals) & DC- (60 VDC) Yes
No Go to step 3.c
Replace Surge PCB located in
the flashhead.
3.c Are the two LEDs lit on the core board?
View through the clear polycarbonate cover on the
bottom of the light engine assembly. Yes
No
Replace the light engine
assembly.
Inspect the wiring harness
between the Surge PCB and the
Core PCB for loose connection
or damage. Repair/replace if
necessary. Replace the Core
PCB if no problem is found with
the wiring harness.
Table 5-4 – Troubleshooting – L810 Side Markers (SC 370 Information Display)
Step Check/Test/Action Action
4.a Are any of the L810 markers on the tier
functioning?
With the controller in night mode, review
diagnostics to determine the type of alarm and the
number of failed markers. Yes
No Go to step 5.b
Go to step 4.b
4.b Is a Marker Comm. alarm present? Yes
No Go to Step 4.c
Go to Step 5.b
4.c Is the unit programmed correctly?
Review the overall system configuration. In a
multi-unit installation, verify that the unit in question
has a marker tier connected. Yes
No Go to Step 5.a
Correct the system programming
and check for proper operation.