Voltage Detection with Probe
Do not touch energized parts with the probe.
1. Turn the light fixture's power on.
2. Use the probe to detect the presence of ac voltage on the wires at input
of the ballast.
• If the tester's LED flashes red and beeps, there is ac voltage present.
3. Use the probe to detect the presence of ac voltage on the wires at
output of the ballast.
• If the tester's LED flashes red and beeps, there is ac voltage present.
The lamp may be faulty.
• If LED and beeper do not activate during voltage detection at the
ballast output wires, the ballast may be faulty.
Figure 9: Voltage detection at ballast
output wires
Figure 8: Voltage detection
at ballast input wires
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