Chapter 3: MediaDirector 2252/2251 component replacement
service. To take full advantage of the redundant supplies, Harmonic recommends that you use separate,
isolated power sources for each AC input.
DANGER:
Observe all conventional ESD precautions when handling Spectrum devices
and components.
Before you begin
Unpack the replacement component and visually inspect for damage. If it is damaged,call Harmonic
Technical Support for assistance and do not continue with this procedure.
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.
The release lever clicks to indicate that the unit is locked into place.
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