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OCTOBER 1994
AC470A
Internal Audio System
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IN P U
C D
E R
P E A K
P C S
A R D
D B O
S O U N
i o
a l A u d
M A X
I n t e r n
M IN
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S y s t e
M A X
M IN
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D IR E C
IF IE R
A M P L
CUSTOMER
Order toll-free in the U.S. 24 hours, 7 A.M. Monday to midnight Friday: 877-877-BBOX
FREE technical support, 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746
SUPPORT
Mail order: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018
INFORMATION
Web site: www.blackbox.com • E-mail: info@blackbox.com
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Table of Contents
Summary of Contents for Black Box AC470A
- Page 1 Order toll-free in the U.S. 24 hours, 7 A.M. Monday to midnight Friday: 877-877-BBOX FREE technical support, 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746 SUPPORT Mail order: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018 INFORMATION Web site: www.blackbox.com • E-mail: info@blackbox.com...
- Page 2 INTERNAL AUDIO SYSTEM FEDERAL COMMUNICATIONS COMMISSION AND INDUSTRY CANADA RADIO FREQUENCY INTERFERENCE STATEMENT Class B Digital Device. This equipment has been tested and found to comply with the limits for a Class B computing device pursuant to Part 15 of the FCC Rules.
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Page 3: Specifications
CHAPTER 1: Specifications 1. Specifications System Requirements — At least one available 5 ⁄ -inch standard disk bay Speakers — 8-ohm stereo Frequency Response — 250 Hz-20 KHz @ 83 dB with SPL Magnetic Flux Density Leakage— <6 gauss (measured at enclosure) Amplifiers —... - Page 4 INTERNAL AUDIO SYSTEM 2. Introduction 2.1 Features Your new Internal Audio System transforms any PC into a high-quality audio system. The Internal Audio System installs easily in any existing standard ⁄ -inch disk bay. It’s packed with many convenient features: •...
- Page 5 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: •...
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Page 6: Controls And Functions
INTERNAL AUDIO SYSTEM 3. Controls and Functions This section describes the physical features, controls, and their functions for the Internal Audio System. See Figure 3.1 for the front-panel location of items 1 through 9. Figure 3.2 shows a back-panel view of the unit, and the location of items 10 through 13. - Page 7 CHAPTER 3: Controls and Functions 7) Sound Board/PC Speaker or Microphone Selection Switch (B) — Lets you select the audio input source: either from a sound board or the PC speaker (back panel), or from a Microphone input (front panel). 8) Right LED —...
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Page 8: Installation
INTERNAL AUDIO SYSTEM 4. Installation There are just 10 simple steps to follow for a quick and easy installation of your Internal Audio System: Step 1 Switch off power to the PC in which you’re installing the Internal Audio System. Remove the CPU housing cover from your PC (follow instructions provided with your computer) and locate the open 5 ⁄... - Page 9 CHAPTER 4: Installation Step 4 Use the two 6-inch right-angle cables (provided) to externally connect the output jack on the sound board to the input jack on the Metal Bracket, and the output jack on the Metal Bracket to the input jack on the sound board. See Figure 4.2.
- Page 10 INTERNAL AUDIO SYSTEM Figure 4.3. Connecting the Internal Audio System Unit. Step 7 Plug one end of the Mono Cable (provided) into the PC Speaker Input (Mono) jack on back of the Internal Audio System unit. Plug the other end into either the right or left prong of the PC motherboard connector labeled SPEAKER.
- Page 11 If they aren’t, remove the cover from your PC and confirm that all the Internal Audio System connections have been made and that the connectors are properly seated. If the LEDs still don’t light, call Black Box for technical support.
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Page 12: Operating Modes
INTERNAL AUDIO SYSTEM 5. Operating Modes The Internal Audio System is designed for maximum application flexibility with peripheral audio devices such as sound boards, CD-ROMs, CD digital audio players, headphones, and microphones. You select the operating mode by setting the front-panel Selection Switches (A and B). -
Page 13: Troubleshooting
If these solutions do not resolve the problem, then contact Black Box for additional technical support. Remember, this unit contains no user- serviceable parts. Do not attempt to alter or repair it yourself. - Page 14 © Copyright 1994. Black Box Corporation. All rights reserved. 1000 Park Drive • Lawrence, PA 15055-1018 • 724-746-5500 • Fax 724-746-0746...