Gebruiksaanwijzing /service van het product DCA 3422 van de fabrikant QSC Audio
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1 • DCA 1222 • DCA 1622 • DCA 2422 • DCA 3022 • DCA 3422 • DCA 1824 • DCA 1644 DCA ™ Digital Cinema Amplifiers TD-000075-00 Rev. F User Manual Manuel de l’utilisateur Bedienhandbuch .
Erklärung der Bildsymbole Das Blitzzeichen innerhalb eines gleichseitigen Dreiecks warnt den Benutzer vor nicht isolierter , gefährlicher Spannung im Inneren des Gerätes. Diese Spannung ist hoch genug, um Personen durch elektrischen Schlag zu gefährden.
3 Safe operating level s ............................................. 25 Niveaux d'utilisation sécuritaires Betriebspegel Niveles adecuados de operación APPLICA TIONS ................................................. 26–28 APPLICA TIONS ANWENDUNGSBEISPIELE APLICACIONES TROUBLESHOOTING .
4 EC Declaration of Conformity for Model PLX, DCA, and CX Professional Power Amplifiers Including the models PLX1202, PLX1602, PLX2402, PLX3002, PLX3402, DCA1222, DCA1622, DCA2422, DCA3022, DCA 3422, CX032, CX502, CX702, CX902, CX1102, CX302V , CX602V , and CX1202V .
5 INTRODUCTION EINFÜHRUNG INTRODUCCIÓN A V ANT -PROPOS © Copyright 1998, 1999, 2005, 2007, QSC Audio Products, Inc. QSC® is a registered trademark of QSC Audio Products, Inc. “QSC” and the QSC logo are registered with the U.S. Patent and T rademark Office.
6 Caractéristiques • 5 modèles à deux canaux, et 2 modèles à 4 canaux • Sorties sur bornes à vis et prises Speakon* • Appel de courant nul à l’allumage, ce qui prévient la rupture inop.
7 Front panel 1. Power switch 2. Cooling vents 3. Gain control (1 per channel) 4. CLIP , -10 dB , -20 dB and SIGNAL indicator LEDs, all channels 5. POWER , BRIDGE , and PARALLEL indicator LEDs 6. Handles 7. Security panel Panel frontal 1. Interruptor de encendido 2.
8 Rear panel 1. T erminal block inputs 2. DataPort 3. XLR inputs 4. Configuration switch 5. Configuration switch chart 6. TRS inputs 7. Speakon output, Channel 1 plus Channel 2 (4-wire) 8. Speakon output, Channel 2 9. Barrier strip outputs 10. Cooling air inlet vents 11.
9 Clip limiter Description When the audio signal drives the amp 's output circuit beyond its power capability , it clips, flattening the peaks of the waveform. The clip limiter detects this and quickly reduces the gain to minimize the amount of overdrive.
10 Input filter Description The low-frequency (LF) filter rolls off signals below either 30 Hz or 50 Hz. This improves bass performance by limiting sub-audio cone motion, making more power available for the speakers' rated frequency range. The filter settings for each channel are controlled individually through the DIP switch settings shown.
11 Parallel input mode Description The "Parallel Input" switches let you operate the amplifier in parallel mode, delivering the same signal to two channels without using a Y-cable. Each channel drives its own speaker load, with independent gain, filtering, and clip limiting.
12 FEA TURES & SETUP CARACTERÍSTICAS Y AJUSTES CARACTÉRISTIQUES ET LEUR UTILISA TION AUSST A TTUNG & EINSTELLUNGEN Branching to other amps In addition to parallel mode, you can parallel the inputs in bridged mono mode to carry the signal to additional amplifiers through the unused ex tr a input jacks.
13 FEA TURES & SETUP Bridge mono mode Description Bridged mono mode combines the power of two amp lifier channels (Channels 1 & 2, and/or 3 & 4) into one speaker load, resulting in twice the voltage swing, four times the peak power , and approximately three times the sustained power of a single channel.
14 FEA TURES & SETUP CARACTERÍSTICAS Y AJUSTES CARACTÉRISTIQUES ET LEUR UTILISA TION AUSST A TTUNG & EINSTELLUNGEN Bridge mono mode (continued) BRIDGED-MONO PRECAUTIONS: This mode puts a high demand on the amplifier and speaker , Excessive clipping may cause protective muting or speaker damage.
15 FEA TURES & SETUP What are the differences among Stereo, Parallel Input, and Bridge Mono modes? Stereo mode This is the "normal" way of using the amplifier , in which each channel is fully independent.
16 FEA TURES & SETUP Bridge Mono mode This mode combines the full power capabilities of both channels into a single speaker system. The amplifier internally re-configures so that both channels operate as a unit.
17 3.50" 88.9 mm 13.0" 330.2 mm 13.0" 330.2 m m 14.0" 355.6 m m 17.30" 440 m m POWER OFF - - DCA 3022 28 28 INST ALLA TION Utiliser les quatre vis et rondelles de montage pour fixer le devant de l'amplificateur sur les rails de montage.
18 CONNECTIONS CLIP LI M CLIP LI M MODE SWI MODE SWI C H C H FILTER O FILTER O 30 Hz FI L 30 Hz FI L BRIDGE O BRIDGE MONO OFF 50 Hz INPUT S PARALL STEREO 50 Hz 123456789 10 1 1 shield or ou oder ó CONEXIONES CONNEXIONS ANSCHLÜSSE Entradas Entrées Chaque canal est muni de prises XLR, ¼” (6.
19 T erminal block unbal- anced • bloc détachable asymêtrique • unsymetrische Anschlußstecker • Entrada de bloque no balanceado Inputs (continued) Balanced inputs : Use the XLR or ¼-inch (6.3 mm) TRS input jacks, or the detachable terminal blocks.
20 Speakon™ Outputs (two-channel models) The two-channel DCA amplifiers offer a choice of output connections: two Neutrik NL4MD Speakon jacks and a barrier strip with screw terminals. The Speakon connector is designed specially for high-power speaker connections.
21 8 4 2* 1.6 ** Ω Ω Ω Ω 8 4 2* 1.6 ** Ω Ω Ω Ω * ** Except DCA 1644 DCA 1222 only 16 8 4* 3.2 ** Ω Ω Ω Ω 2 Ω 2 Ω * ** Except DCA 1644 DCA 1222 only CONNECTIONS CONEXIONES C.
22 CONNECTIONS CONEXIONES CONNEXIONS ANSCHLÜSSE DataPort The amplifier features a DataPort, which connects to a QSControl MultiSignal Processor , DCM Digital Cinema Monitor , or other QSC cinema accessories via the HD-15 connector .
23 OPERA TION AC power switch Before applying power , check all connections and turn down the gain controls. The "soft start" sequence starts with the POWER indicator LED at half brightness.
24 Security panel After setting the gain controls, you can install the security panel to prevent tampering and accidental misadjustment. Installing the security panel 1. Use a 9/64" or 3.5 mm hex key to back the screw out several turns. 2. Slide the right end of the security panel just under the screw head.
25 OPERA TION Fan cooling TThe fan varies speed automatically to maintain safe internal temperatures and minimize noise. Keep the front and rear vents clear to allow full air flow . Hot air exhausts out the front of the amp so it does not heat the interior of the rack.
26 APPLICA TIONS APPLICA TIONS ANWENDUNGS- BEISPIELE APLICACIONES A small passive system Un petit système passif Ein kleines Passivsystem Un sistema pasivo pequeño A typical 2-way system Un système.
27 APPLICA TIONS APPLICA TIONS APLI CACIONES ANWENDUNGS- BEISPIELE A typical 3-way system Un système 3 voies typique Ein typisches 3-Wege-System Un sistema típico de 3 vías Going 3 ways with a sing.
28 APPLICA TIONS APPLICA TIONS APLI CACIONES ANWENDUNGS- BEISPIELE A typical 2-way system with Dolby Digital - Surround EX Un système 2 voies typique avec Dolby Digital - Surround EX Ein typisches 2-.
29 TROUBLESHOOTING Problem: no sound Indication: POWER indicator not lit • Check the AC plug. • Confirm that the AC outlet works by plugging in another device. If too many amplifiers are used on one outlet, the building's circuit breaker may trip and shut off power .
30 No sound (continued) TROUBLESHOOTING SIGNAL POWER -20dB -IOdB CLIP 1 C H A N N E L 2 SIGNAL POWER -20dB -IOdB CLIP 1 C H A N N E L 2 Pas de son (suite) Indication: DEL de signal fonctionnent normal.
31 • This could be caused by a faulty speaker or loose connection. Check the wiring and try another speaker . • The signal source may be clipping. Keep the amplifier gain controls at least halfway up so that the source does not have to be overdriven.
32 Problem: hiss • Unplug the amplifier input to confirm that the hiss is coming from the source or a device upstream; erratic or popping noises indicate an electronic fault in the offending unit.
33 INNER WORKINGS An impressive amount of technology is packed "under the hood" of a DCA Series amplifier . Thousands of watts of power flow inches away from state-of-the-art low noise inputs. Precise circuit layout and thorough protection assure that all of this activity occurs smoothly and safely .
34 High Performance Audio . High speed power transistors convert this DC power into the full range audio output which drives the speakers. High-current design and special dual-sense output feedback corrects errors on both sides of the speaker terminals, improving damping and control of speaker motion.
35 DCA1222 DCA1622 DCA2422 DCA3022 DCA3422 OUTPUT POWER in watts FTC: 20 Hz–20 kHz @ 0.03% THD, all channels driven 8 ohms per channel 2 0 0 3 0 0 4 2 5 5 5 0 7 0 0 FTC: 20 Hz–20 kHz @ 0.
36 DCA1824 DCA1644 OUTPUT POWER in watts FTC: 20 Hz–20 kHz @ 0.03% THD, all channels driven 8 ohms per channel 1 7 0 2 5 0 FTC: 20 Hz–20 kHz @ 0.05% THD, all channels driven 4 ohms per channel 3 2.
37 TECHNISCHE DA TEN SPECIFICA TIONS SPÉCIFICA TIONS ESPECIFICACIONES DCA1222 DCA1622 DCA2422 DCA3022 DCA3422 LOAD PROTECTION Turn-on/turn-off muting, DC-fault power supply shutdown, clip limiting OU.
38 TECHNISCHE DA TEN SPECIFICA TIONS SPÉCIFICA TIONS ESPECIFICACIONES DCA1824 DCA1644 LOAD PROTECTION Turn-on/turn-off muting, DC-fault power supply shutdown, clip limiting OUTPUT CIRCUIT TYPE AB AB AB: Class AB complementary linear output H: Class AB complementary linear output with Class H 2-step high efficiency circuit DIMENSIONS 19.
WARRANTY INFORMA TION (USA only; see your dealer or distributor) INFORMA TIONS DE GARANTIE (É-U seulement; consultez votre marchand ou distributeur) GARANTIEBEDINGUNGEN (Nur USA; in anderen Ländern Ihren Fachhändler fragen.) INFORMACIÓN DE GARANTÍA (EE.
40 QSC Audio Products, Inc. 1675 MacArthur Boulevard Costa Mesa, California 92626 USA “QSC” and the QSC logo are registered with the U.S. Patent and T rademark Office.
Een belangrijk punt na aankoop van elk apparaat QSC Audio DCA 3422 (of zelfs voordat je het koopt) is om de handleiding te lezen. Dit moeten wij doen vanwege een paar simpele redenen:
Als u nog geen QSC Audio DCA 3422 heb gekocht dan nu is een goed moment om kennis te maken met de basisgegevens van het product. Eerst kijk dan naar de eerste pagina\'s van de handleiding, die je hierboven vindt. Je moet daar de belangrijkste technische gegevens QSC Audio DCA 3422 vinden. Op dit manier kan je controleren of het apparaat aan jouw behoeften voldoet. Op de volgende pagina's van de handleiding QSC Audio DCA 3422 leer je over alle kenmerken van het product en krijg je informatie over de werking. De informatie die je over QSC Audio DCA 3422 krijgt, zal je zeker helpen om een besluit over de aankoop te nemen.
In een situatie waarin je al een beziter van QSC Audio DCA 3422 bent, maar toch heb je de instructies niet gelezen, moet je het doen voor de hierboven beschreven redenen. Je zult dan weten of je goed de alle beschikbare functies heb gebruikt, en of je fouten heb gemaakt die het leven van de QSC Audio DCA 3422 kunnen verkorten.
Maar de belangrijkste taak van de handleiding is om de gebruiker bij het oplossen van problemen te helpen met QSC Audio DCA 3422 . Bijna altijd, zal je daar het vinden Troubleshooting met de meest voorkomende storingen en defecten #MANUAl# samen met de instructies over hun opplosinge. Zelfs als je zelf niet kan om het probleem op te lossen, zal de instructie je de weg wijzen naar verdere andere procedure, bijv. door contact met de klantenservice of het dichtstbijzijnde servicecentrum.
