Instruction/ maintenance manual of the product UF-3 QSC
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11 UF-3 UF-3 UF-3 UF-3 UF-3 Universal Universal Universal Universal Universal Filter Filter Filter Filter Filter *TD-004031-00* *TD-004031-00* Rev. A Owner’ s Manual.
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1 I. DESCRIPTION The UF-3 is an embedded dual-channel universal filter accessory for use with select QSC power amplifiers. Compatible amplifier models and lines, both current and discontinued, include.
2 III. PROGRAMMING THE UF-3 The UF-3 circuit board has six 3-pin headers and four SIP resistor network sockets (see Figure 2). All are used for programming the module.
3 Programming the High-Pass Filter and CD Horn Equalization To use either the high-pass filter or the constant-directivity horn equalization, or both, set the jumper on Jx02 across pins 2 and 3, which are the lower two pins on their header.
4 IV . TYPICAL APPLICA TIONS Subsonic Filter Subsonic filters are commonly used in sound installations to filter out rumbles and other inaudible or unwanted low frequency signals and to protect speaker drivers.
5 Ultrasonic Filter An ultrasonic filter is useful for minimizing RF interference, oscillations, leakage or aliasing from digital devices, and other signals that are too high in pitch to hear but may wreak havoc in an amplifier system. Program settings: 1.
6 2-Way Active Crossover This configuration routes the frequencies below a particular frequency to amplifier Channel 1, which shall drive the low-frequency speakers, and the frequencies above to Channel 2, which shall drive the high-frequency speakers.
7 Ch. 2 Ch. 1 UF-3 PowerLight 1.6 HVX Ch. 2 Ch. 1 UF-3 PowerLight 3.4 (parallel mode) Ch. 2 Ch. 1 UF-3 PowerLight 4.0 (bridged mode) Ch. 1: Ch. 2 LP @ 150 Hz; HP @ 20 Hz Bypassed UF-3: Subwoofer Ch. 1: Ch. 2 LP @ 1000 Hz; HP @ 150 Hz LP @ 1000 Hz; HP @ 150 Hz UF-3: W oofers Ch.
8 Tools and materials you will need: Soldering iron Desoldering iron or other suitable desoldering equipment Phillips screwdriver Wire cutters Rosin-core solder CAUTION: • Do not use desoldering braid because it may damage the solder pads on the BusCard or input board, and it also might not adequately remove solder.
9 Continue preparing the PC board by removing solder from all 22 in-line socket holes. Once this is done, you are ready to install the UF-3. With the input panel facing you and the component side of the UF-3 board facing away from you, carefully insert the header pins of the UF-3 fully into the socket holes.
10 VII. TECHNICAL ASSIST ANCE & SERVICE Servicing your QSC product requires a trained and qualified technician. There are no user serviceable components inside, and the danger of electric shock exists. Additionally, some of the components are QSC-specific parts that require QSC replacements.
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12 QSC Audio Products, Inc. 1675 MacArthur Blvd., Costa Mesa, California 92626 USA Tel: +1 714 754-6175 Fax: +1 714 754-6174 Web: www.qscaudio.com.
An important point after buying a device QSC UF-3 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought QSC UF-3 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data QSC UF-3 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, QSC UF-3 you will learn all the available features of the product, as well as information on its operation. The information that you get QSC UF-3 will certainly help you make a decision on the purchase.
If you already are a holder of QSC UF-3, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime QSC UF-3.
However, one of the most important roles played by the user manual is to help in solving problems with QSC UF-3. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device QSC UF-3 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
