Instruction/ maintenance manual of the product USA 900 QSC Audio
Go to page of 24
23 USA Series FPO User Manual Manuel de l’utilisateur Bedienhandbuch Manual del Usuario ▼ USA 400 ▼ USA 900 ▼ USA 1310 Rev. A *TD-000061-00* *TD-000061-00*.
1 PROTECTION .. . .. .. ....................................................... 1 7 PROTECTION SCHUTZSCHAL TUNGEN PROTECCIÓN Limiter .......................................................................... 1 7 Limiteur Limiter Limitador Sh or t ci rc ui t pr ot e ct io n .
2 Erklärung der bildsymbole Das Blitzzeichen innerhalb eines gleichseitigen Dreiecks warnt den Benutzer vor nicht-isolierter , gef ä hrlicher Spannung im Inneren des Ger ä tes. Diese Spannung ist hoch genug, um Personen durch elektrischen Schlag zu gef ä hrden.
3 Declaration of Conformity We declare as our sole responsibility that this product is in compliance with the EMC Directive 89/336/EEC and conforms to the requirements of the Harmonized Product Standards EN 55013 (Product Emissions), and EN 55020 (Product Immunity).
4 Front panel of USA 400 or USA 900 Front panel of USA 1310.
5 INTRODUCTION EINF Ü HRUNG INTRODUCCI Ó N A V ANT -PROPOS Front panel 1. Power switch 2. Power LEDs 3. Clip LED (Channel 1) 4. Clip LED (Channel 2) 5a. Fuse holder (220 – 240 VAC only) 5b. Circuit breaker (100 and 120 VAC only) Panel frontal 1. Interruptor de encendido 2.
6 Rear panel 1. Gain controls 2. DIP switch for parallel inputs, lim- iter , and high-pass filter 3. Input barrier strip 4. Output (Channel 1) 5. Output (Channel 2) 6. Inputs 7. Stereo/Bridge Mono switch 8. AC mains cable Panneau arri è re 1. Commandes de gain 2.
7 MONT AGE Avant Utiliser quatre vis de montage. BEFESTIGUNG V orn Benutzen Sie vier Befestigungsschrauben. MONT AJE Frente Utilice cuatro tornillos. MOUNTING Front Use four mounting screws.
8 Operating voltage (AC mains) The serial number label indicates the correct AC mains voltage. Connecting to the wrong voltage is dangerous and may damage the amplifier . Inputs The “ combo ” input connectors accept standard male XLR and 6.3 mm (1/4") TRS connectors, both balanced and unbalanced.
9 Outputs Strip back insulation 13 mm. Sorties D é nuder le fil sur 13 mm. Ausg ä nge Kabel 13 mm abisolieren. Salidas Aislamiento de la parte de atr á s de la borna de 13 mm.
10 High-pass filter The high-pass filter removes ultra- low frequency information from the audio signal that could damage or cause distortion in a loudspeaker system. The DIP switch on the rear panel allows you to enable or disable the filter independently for either channel, as well as set it for either a 50 Hz or 30 Hz cut-off.
11 OPERA TION Configuring the amplifier An 8-position DIP switch on the rear panel allows you to configure certain amplifier characteristics. A diagram on the rear panel shows the individual switch functions and settings.
12 POSITIONS 3 AND 6: LIMITER These two positions affect the clip limiter for Channel 2 and Channel 1, respectively . The “ ON ” setting enables the limiter for that channel, while the “ OFF ” setting disables it.
13 Circuit breaker (100 and 120 V AC amplifiers only) The circuit breaker is on the front panel next to the power switch. If the circuit breaker trips due to an AC current overload, reset it. If the breaker trips again quickly , have the amplifier checked by an authorized QSC service center .
14 Gain controls The gain controls are located on the rear panel and are calibrated in dB of attenuation from full gain. V erst ä rkungseinstellung Die Verst ä rkungseinsteller befinden sich auf der R ü ckseite und sind in dB-Absenkung gegen ü ber voller Verst ä rkung kalibriert.
15 Parallel, stereo, and bridged mono Eingangsparallelschaltung, Stereobetrieb, und Mono-Br ü ckenbetrieb Est é reo, paralelo y mono puente Connecting outputs STEREO OPERA TION Stereo/Bridge switch .
16 BRIDGED MONO OPERA TION BRIDGED-MONO MODE CAUTION: Output voltages as high as 110 volts rms are available between the USA 1310's bridged terminals. Fully insulated CLASS ONE wiring must be used to connect the amplifier to the load, and the load must be rated up to 1200 watts (8 ohms).
17 PROTECTION Limiter During normal operation, the limiter does not affect the audio signal and is, in fact, inaudible. It will allow brief clipping of peaks and will only activate when continuous, hard clipping occurs. The limiter will then reduce the audio signal enough to minimize the amount of clipping.
18 DC fault protection The outputs will mute if DC or excessive subsonic energy appears at them. Protection contre une anomalie CC Les sorties seront coup é es en pr é sence de courant continu ou de signal subsonique excessif.
19 USA 400 USA 900 USA 1310 OUTPUT POWER * both channels driven FTC: 20 Hz-20 kHz @ 0.1% THD 8 Ω per channel 1 1 0 2 4 0 3 7 5 EIA: 1 kHz @ 1% THD 8 Ω per channel 1 2 5 2 7 0 4 0 0 4 Ω per chann.
20 TECHNISCHE DA TEN SPECIFICA TIONS SPÉCIFICA TIONS ESPECIFICACIONES USA 400 USA 900 USA 1310 AMPLIFIER PROTECTION Full short circuit†, open circuit, thermal, ultrasonic, and RF protection Stable .
21 WARRANTY INFORMA TION (USA only; see your dealer or distributor) INFORMA TIONS DE GARANTIE (ee. uu. seulement; consultez votre marchand ou distributeur) GARANTIE-NACHRICHT (Nur USA; in anderen L ä ndern Ihren Fachh ä ndler fragen) INFORMACI Ó N DE GARANT Í A (EE.
22 ADDRESS & TELEPHONE INFORMA TION Address: QSC Audio Products, Inc. 1675 MacArthur Boulevard Costa Mesa, CA 92626-1468 USA T elephone Numbers: Main Number (714) 754-6175 Sales Direct Line (714) 957-7100 Sales & Marketing (800) 854-4079 (toll-free in U.
24 QSC Audio Products, Inc. 1675 MacArthur Boulevard Costa Mesa, California 92626 USA.
An important point after buying a device QSC Audio USA 900 (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 Audio USA 900 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 Audio USA 900 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, QSC Audio USA 900 you will learn all the available features of the product, as well as information on its operation. The information that you get QSC Audio USA 900 will certainly help you make a decision on the purchase.
If you already are a holder of QSC Audio USA 900, 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 Audio USA 900.
However, one of the most important roles played by the user manual is to help in solving problems with QSC Audio USA 900. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device QSC Audio USA 900 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
