Specifications

22 Revision 4 – 1-7-2008 FTB 312-4
Section 3 - Maintenance
and Troubleshooting
Safety
WARNING
STOP: Before proceeding read the
warning on Page iii.
Work safely, as follows:
1. Remove rings and watches before
opening the equipment.
2. Shut off the equipment.
3. Remove the component or connect the
test instruments.
4. Replace the component.
5. Turn on the power and test the system.
6. Turn off the power and disconnect the
test equipment.
Preventive Maintenance
Carry out the following inspection and
cleaning procedures at least once a year:
1. Verify that moisture has not
accidentally entered the equipment
through gaskets or seals, or collected
inside as condensation.
2. Verify that all drain holes are clear.
3. Check terminal blocks and relays for
corrosion or arcing. Clean or replace
any component that shows evidence of
high-voltage damage.
4. Check flashtube connections for signs
of pitting or arcing. Verify that anode
and cathode connections are firmly
tightened.
5. Check all electrical connections for
tightness and verify the absence of
corrosion or electrical arcing.
6. Clean the outside surface of the lens
with liquid detergent and water. Wipe
it gently with a soft cloth or paper
towel.
7. Clean the inside surface of the lens
with an Flash Technology-approved
professional plastic cleaner. Wipe the
lens with cheesecloth only. Do not use
regular cloth or paper towels. A lens
cleaning kit, Part Number 8630801, is
available from Flash Technology.
Contact Customer Service at 1-800-
821-5825.
Storage
Store equipment indoors when not in use.
Circuit board, when not installed in the
equipment, should be kept in antistatic
bags or containers.
Diagnostic Testing
The only effective way to check out
interconnected lights is to disconnect the
master/slave interconnect wire that is
connected between power converters and
check the power converters as single units,
as described in Master Unit.
Sync Signal Evaluation
Refer to Figure 2-6. Note that, for each
power converter, the master/slave
interconnect line and its return line are
connected to TB1-4 and TB1-5
respectively. All units place a pulse on the
line, which causes the power converters to
flash all the lights at the same time. This
pulse is the synchronization pulse. PCB1
in each power converter generates a sync
pulse. The first sync pulse to be placed on
the line synchronizes the remaining lights.
The width of the sync pulse controls the
mode of operation.
In the event of a top-most red light failure
at night, the power converter places a
back-up signal on the line that causes all
connected units to flash the white lights at
the correct night intensity.