Gebruiksaanwijzing /service van het product DCA Series van de fabrikant QSC
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1 Cinema Accessories for DCA Series amplifiers USER MANUAL ▼ ▼ ▼ ▼ ▼ XC-3 Two-way crossover with delay ▼ ▼ ▼ ▼ ▼ LF-3 Low-frequency filter with delay ▼ ▼ ▼ ▼ ▼ SF-3 Subwoofer filter *TD-000079-00* TD-000079-00 rev.
2 ©Copyright 1998, 2002 QSC Audio Products, Inc. All rights reserved. “QSC , ” “DCA , ” “DataPort , ” and the QSC logo are registered trademarks of QSC Audio Products, Inc.
3 TABLE OF CONTENTS INTRODUCTION Introduction and d escription of e ach m odel.................................4 CONFIGURING THE ACCESSORIES General c onfiguration i nformation, all m odels...............................5 XC-3 Setting u p the XC-3....
4 INTRODUCTION & DESCRIPTION OF EACH MODEL XC-3 This accessory is a two-way crossover, with the low frequency band fed to channel 1 of the amplifier and the high frequencies t o channel 2. An all-pass filter on the low frequency band delays the audio signal, permitting time alignment of a cone driver with a high-frequency horn.
5 CONFIGURING THE ACCESSORIES Configurable functions of the three accessory models Configure each accessory before you mount it to the ampli- fier. If an accessory is already mounted to an amplifier, always turn the amplifier off before changing switch set- tings, changing input or output connections, or detaching the accessory.
6 XC-3 Setting u p the XC-3 Setting up the XC-3 requires setting the DIP switches and selecting/inserting SIP resistors into the appropriate sockets. DIP switches #2, #9, and #10 must be set to the ON position (default settings for the XC-3). The flowchart below takes you through all the steps necessary before mounting the accessory to the amp.
7 Use these tables to determine the correct resistor values for the crossover frequencies and delays you need. The shaded values are for the high-pass frequency (f HP ) of the XC-3. XC-3 Setting u p the XC-3 Effects of high frequency boost on frequency response (crossover frequency = 500 Hz).
8 Setup flowchart for the LF-3 Setting up the LF-3 requires setting the DIP switches and selecting/inserting SIP resistors into the appropriate sockets. DIP switches #2 and #4 through #9 must be set to OFF, and switch #3 set to ON (factory default for proper operation).
9 LF-3 Setting Up the LF-3 LF-3 Factory-installed SIPs LF-3 Factory Switch Settings LF-3 Recommended Amplifier Settings f xo 350 Hz, both channels (18 k Ω SIP resistor installed in J6 and J8) Delay 1.
10 Setting up the SF-3 SF-3 Setting u p the SF-3 Setting up the SF-3 requires setting the DIP switches, and selecting/inserting SIP resistors into the appropriate sockets. DIP switches #1 through #6 and #10 must be set to OFF (factory default for proper operation).
11 SF-3 Factory-installed SIPs fHP= 30 Hz (27 k Ω SIP resistor in J2) fLP= 250 Hz (22 k Ω SIP resistor in J6) SF-3 Factory Switch Settings Switches 1 through 6 and Switch 10 OFF: Default setting f.
12 An accessory may be mounted with the amplifier either in or out of the rack, even if the amp is installed with rear rack ears. MOUNTING- All Models Mounting the Accessories 1. Turn off the amplifier before installing the accessory. 2. Make sure the SIP resistor networks are installed properly and no SIP sockets are empty.
13 Setting up the DCA Accessories in the Cinema Sound System If you are unable to obtain a satisfactory frequency response or SPL on a channel, carefully check the wiring and connections. Some likely causes are reversed speaker polarity on one or more drivers, loose or broken wiring or connections, or blown or damaged speaker drivers.
14 Cleaning The faceplate and chassis can be cleaned with a soft cloth and nonabrasive, noncorrosive, mild cleaning solution. Products like Simple Green and Windex work well. Do not use powders or scrubbing pads of any type as they are usually abrasive and will permanently damage the finish of your cinema accessory.
15 WORLD WIDE WEB: http://www.qscaudio.com FACSIMILE (FAX) NUMBERS: Sales & Marketing FAX +1 (714) 754-6174 Technical Services FAX +1 (714) 754-6173 TELEPHONE NUMBERS: Main Number +1 (714) 754-6175 Sales Direct Line +1 (714) 957-7100 or (800) 854-4079 toll free (U.
16 © Copyright 1998, 2002 QSC Audio Products, Inc. All rights reserved. “QSC” and the QSC logo are registered with the U.S. Patent and Trademark Office.
Een belangrijk punt na aankoop van elk apparaat QSC DCA Series (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 DCA Series 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 DCA Series vinden. Op dit manier kan je controleren of het apparaat aan jouw behoeften voldoet. Op de volgende pagina's van de handleiding QSC DCA Series leer je over alle kenmerken van het product en krijg je informatie over de werking. De informatie die je over QSC DCA Series krijgt, zal je zeker helpen om een besluit over de aankoop te nemen.
In een situatie waarin je al een beziter van QSC DCA Series 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 DCA Series kunnen verkorten.
Maar de belangrijkste taak van de handleiding is om de gebruiker bij het oplossen van problemen te helpen met QSC DCA Series . 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.
