Valcom, Inc.
5614 Hollins Road
Roanoke, VA 24019
540-563-2000 P.
540-362-9800 F.
www.valcom.com
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Troubleshooting
The clock is not running. What do I do?
a) Measure the input voltage to the clock. The voltage should measure 85-135 volts in the 110 volt model or 10-28 volts in the 2.5”/24 volt
model and 16-28 volt in the 4.0”/24 volt model.
b) Make sure the transformer is an isolated transformer if using a 24 volt model.
c) Make sure the ground wire is not touching other wires.
NOTE: If you fail to follow instructions a and b listed above, the fuses can be blown.
Clock is only displaying dashes. What do I do?
This means that the clock is receiving power but not receiving a time correction signal.
a) Confirm that the head end is sending data to the clock power supply
b) Confirm that clock power supply is wired correctly
The clock is displaying a time, but the colons are flashing. What does this mean?
This means that the clock, at one point has received a time update, but since then the correction has been lost.
a) Confirm that the head end is sending data to the clock power supply
b) Check to see that all wiring is correctly.
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