Black Box AC470A Manual page 5

2.3 Before You Get Started
Be sure to read Section 4, Installation, before proceeding with the actual
installation and operation of this unit.
For further information on proper operation, please read Section 5
Operating Modes. If you encounter problems while installing your Internal
Audio System in an older computer chassis, or to address other questions
you may have regarding installation, please call Black Box.
2.4 Calling Black Box
If the Internal Audio System malfunctions or the package arrives incom-plete,
do not attempt to alter or repair the unit. It contains no user-serviceable parts.
Contact Black Box. Before you do, make a record of the history of the
problem. Black Box will be able to provide more efficient and accurate
assistance if you have a complete description, including:
• The nature and duration of the problem.
• When the problem occurs.
• The components involved in the problem.
• Any particular application that, when used, appears to create the problem
or make it worse.
2.5 Shipping and Packaging the Unit
If you need to transport or ship your Internal Audio System:
• We recommend that you use the original packaging container.
• If you are returning the Internal Audio System, make sure you include
this manual as well. Before you ship, contact Black Box to get a
Return Materials Authorization (RMA) number.
2.6 Warnings
To avoid electrical shock, do not open the unit. Refer servicing to qualified
technicians only.
Permanent or temporary hearing loss or impairment may result from
excessive amplification of the sound through the earphone jacks. Before
wearing any headphones, please hold them away from your ears to prevent
any injury from unexpected sound or static noise.
CHAPTER 2: Introduction
5