Hillyard TRIDENT NM14, Service Manual

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3.2 Advanced Guide
3.2.1 Control Card Overview
3.2.2 The buttons LEDs don’t light up
1.
Check the battery
voltage
V ≥ 23
YES ⇒ Point 2
NO ⇒ Recharge/
Replace the
battery
2.
Check the voltage on
the connector J2
V ≥ 23
YES ⇒ Point 3
NO ⇒ Replace the
cables
3.
Check the voltage
J6-Red / J2-Black
V ≥ 23
YES ⇒ Point 4
NO ⇒ Replace the
control card
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