Spectrum
10
4. Hand-tighten the two captive thumb screws to secure the bezel in place.
NOTE:
Do not over-tighten the thumb screws.
Power supply unit replacement
The MediaDeck is equipped with two hot-swappable power supplies, each with an independent AC
connector. If one supply fails, the load is transferred to the remaining supply without interruption to
service. To take full advantage of the redundant supplies, Harmonic recommends that you use separate,
isolated power sources for each AC input.
Replacing a power supply unit
Systems with a single power supply or systems with two power supplies operating in a non-redundant
configuration must be powered off before beginning this procedure.
DANGER:
Observe all conventional ESD precautions when handling Spectrum devices
and components.
Before you begin
Unpack the replacement power supply and visually inspect for damage.
1. Disconnect the AC power cable.
2. Press the release lever to the right and pull the handle to remove the power supply.
3. Using the handle, slide the replacement power supply into the empty chassis slot.
