Manuel d'utilisation / d'entretien du produit MA-24X6 du fabricant Crown Audio
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Operation Manual MA-24X6 Obtaining Other Language Versions: T o obtain inform ation in another lan guage about th e use of this pro duct, please contac t your local C rown Dist ribut or . If you need a ssista nce loca ting yo ur local distr ibutor , please contact Crown at 574-294- 8000.
Operation Manual Macro-Tech MA-24X6 & 36X12 Pow er Amplifiers pag e 2 1) Read these instructions. 2) Keep these instructions. 3) Heed all warnings. 4) Follow all instructions. 5) Do not use this apparatus near water . 6) Clean only with a dry cloth.
page 3 Macro-Tech MA- 24X6 & 36X12 Power Amplifiers Operation Manua l DECLARA TION of CONFORMITY Crown International, Inc. TCF T echnical Certificate No: P4300CRI1.
Operation Manual Macro-Tech MA-24X6 & 36X12 Pow er Amplifiers pag e 4 Important Safety Instructions ............ ............. ......... ............ ............ ............ ............ ... 2 Declaration of Conformi ty ............... .........
page 5 Macro-Tech MA- 24X6 & 36X12 Power Amplifiers Operation Manua l 1 We lcome Congratulations on your purchase of a Macro- Te c h ® dual level professional power amplifier . Y our amplifier has a separate high-power and medium-power channel, making it ideal for biamplified systems.
Operation Manual Macro-Tech MA-24X6 & 36X12 Pow er Amplifiers pag e 6 19 in 48.3 cm 16 in 40.6 cm 3.5 in 8.9 cm 2.5 in 6.35 cm SIDE VIEW 2.1 Unpack Y our Amplifier Please unpack and inspect your amplifier for any damage that may have occurred during transit.
page 7 Macro-Tech MA- 24X6 & 36X12 Power Amplifiers Operation Manua l 2.4 Choose Input Wire and Conn ector s Figure 2.3 shows connector pin assignments for balanced wiring, and Figure 2.4 shows connec- tor pin assignments for unbalanced wiring. NOTE: Custom wiring should only be performed by qu alified personnel.
Operation Manual Macro-Tech MA-24X6 & 36X12 Pow er Amplifiers pag e 8 CH-2 OUTPUTS CH-1 2.5 Choose Output Wire and Con- nectors Crown recommends using pre-built or profes- sionally wired, high-qu ality , two-conductor , heavy gauge speaker wire and connectors.
page 9 Macro-Tech MA- 24X6 & 36X12 Power Amplifiers Operation Manua l 2.6 Wire Y our System This section describes the most common way to install the Macro-T ech 24X6 and 36X12. Each model is designed for biamplif ied systems and includes both a high-power and a medium- power channel.
Operation Manual Macro-Tech MA-24X6 & 36X12 Pow er Amplifiers pag e 1 0 2.7 Connect to AC Mains Connect the AC power cordset of your ampl ifier to the AC mains power source (power outlet). NOTE: The third prong of this connecto r (ground) is an important s afety feature.
page 1 1 Macro-Tech MA- 24X6 & 36X12 Power Amplifiers Operation Manua l 3.1 Precautions Y our Macro-T ech Series amplifier is protected from internal and external faults, but you should still take the following precautions for optimum performance and safety: 1.
Operation Manual Macro-Tech MA-24X6 & 36X12 Pow er Amplifiers pag e 1 2 3.2 Front P anel Controls and Indic ator s A. Dust Filter Removes large particles from the air at the air intake. The filt er elements can be easily removed for cleaning by gently pulling them away from the front panel.
page 1 3 Macro-Tech MA- 24X6 & 36X12 Power Amplifiers Operation Manua l 3.3 Back P anel Controls and Connectors G. Power Cord 120 V A C, 60 Hz units have a 20-amp (12 A W G) line cord with a grounded NEMA 5-15P plug. See Section 8 for AC power usage.
Operation Manual Macro-Tech MA-24X6 & 36X12 Pow er Amplifiers pag e 1 4 NOTE: For detailed information about these Crown amplifier features, please consult the Crown Amplifier Application Guide , available on the Crown website at www .crownaudio.com 4.
page 1 5 Macro-Tech MA- 24X6 & 36X12 Power Amplifiers Operation Manua l 4.1.4 T ransformer Thermal Protection All Macro-T ech amplifiers have transformer thermal protection. It protects the power sup- plies from damage under th e rare con ditions of transformer temperatures rising too high.
Operation Manual Macro-Tech MA-24X6 & 36X12 Pow er Amplifiers pag e 1 6 4.3 Options 4.3.1 PIP Modules Versatile P IP (Programmable Input Processor) modules provide flexible expansion features that can be added to customize the amplifier . PIP modules plug into the connecto r inside the back panel of the amplifier .
page 1 7 Macro-Tech MA- 24X6 & 36X12 Power Amplifiers Operation Manua l 5.1 Indicators The front panel has several helpful indicator LEDs (Figure 5.1). The amber Enable indicator is provided to show the amplifier has been turned on (or enabled) and that its low voltage power supply and forced-air cooling system are working.
Operation Manual Macro-Tech MA-24X6 & 36X12 Pow er Amplifiers pag e 1 8 Figure 5.2 ODEP and Signal /IOC Indicato r S tates 5 T roubleshooting.
page 1 9 Macro-Tech MA- 24X6 & 36X12 Power Amplifiers Operation Manua l Each channel is powered by its own power transformer , T100 or T200. Both channels share TF-1, a low voltage transformer .
Operation Manual Macro-Tech MA-24X6 & 36X12 Pow er Amplifiers pag e 2 0 6 Theor y of Operation ONL Y ONE CHANNEL SHOWN NPN HI OUTPUT STAGE NPN L OW OUTPUT STAGE PNP L OW OUTPUT STAGE PNP HI OUTPUT STAGE + OUTPUT +Vcc –Vcc TRANSLATOR LV A LV A +Vcc –Vcc BIAS CURRENT LIMIT TRANSLATOR BALANCE INPUT STAGE P.
page 2 1 Macro-Tech MA- 24X6 & 36X12 Power Amplifiers Operation Manua l 7 Specifications Minimum Guaranteed P ower 120V A C, 60 Hz Units Macro-T ech 24X6 Macro-T ech 36X12 International Units Macro-T ech 24X6 Macro-T ech 36X12 Power in watts per channel,1 kHz, 0.
Operation Manual Macro-Tech MA-24X6 & 36X12 Pow er Amplifiers pag e 2 2 Perf ormance (continued) Macro-T ech 24X6 Macro-T ech 36X12 Output Impedance See Figure 7.
page 2 3 Macro-Tech MA- 24X6 & 36X12 Power Amplifiers Operation Manua l +45˚ 0˚ –45˚ 100 1 K 10 K 20 K FREQUENCY (Hz) 7 Specifications 10 100 1 K 10 K 100 K FREQUENCY (Hz) +2 +1 0 –1 –2 –3 –4 dB –5 –6 –7 4 ohm 8 ohm 1 watt 504.0 126.
Operation Manual Macro-Tech MA-24X6 & 36X12 Pow er Amplifiers pag e 2 4 This section provides detailed information about the amount of power and current drawn from the Macro-T ech 24X6 and 36X12 amplifiers and the amount of heat produced under vario us conditions.
page 2 5 Macro-Tech MA- 24X6 & 36X12 Power Amplifiers Operation Manua l Figure 8.1 Macro-T ech 24X6 Power Draw, Current Draw and Thermal Dissipation at Various Duty Cycles Figure 8.
Operation Manual Macro-Tech MA-24X6 & 36X12 Pow er Amplifiers pag e 2 6 Crown amplifiers are quality units that rarely require servicing. Before returning your unit for servicing, please contact Crown T echnical Support to verify the need for servicing.
page 2 7 Macro-Tech MA- 24X6 & 36X12 Power Amplifiers Operation Manua l YEAR 3 SUMMAR Y OF W ARRANTY Crown International, 1718 West Mishawaka Road, Elkhart, Indiana 46517-4 095 U.
Operation Manual Macro-Tech MA-24X6 & 36X12 Pow er Amplifiers pag e 2 8 YEAR 3 10 Warranty WORLDWIDE EXCEPT USA & CANADA SUMMAR Y OF W ARRANTY Crown International, 1718 West Mishawaka Road, Elkhart, Indiana 46517-4 095 U.
page 2 9 Macro-Tech MA- 24X6 & 36X12 Power Amplifiers Operation Manua l Crown Factor y Service Information Shipping Address: Crown Facto ry Ser vice, 1718 W .
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Operation Manual Macro-Tech MA-24X6 & 36X12 Pow er Amplifiers pag e 3 2.
Un point important après l'achat de l'appareil (ou même avant l'achat) est de lire le manuel d'utilisation. Nous devons le faire pour quelques raisons simples:
Si vous n'avez pas encore acheté Crown Audio MA-24X6 c'est un bon moment pour vous familiariser avec les données de base sur le produit. Consulter d'abord les pages initiales du manuel d'utilisation, que vous trouverez ci-dessus. Vous devriez y trouver les données techniques les plus importants du Crown Audio MA-24X6 - de cette manière, vous pouvez vérifier si l'équipement répond à vos besoins. Explorant les pages suivantes du manuel d'utilisation Crown Audio MA-24X6, vous apprendrez toutes les caractéristiques du produit et des informations sur son fonctionnement. Les informations sur le Crown Audio MA-24X6 va certainement vous aider à prendre une décision concernant l'achat.
Dans une situation où vous avez déjà le Crown Audio MA-24X6, mais vous avez pas encore lu le manuel d'utilisation, vous devez le faire pour les raisons décrites ci-dessus,. Vous saurez alors si vous avez correctement utilisé les fonctions disponibles, et si vous avez commis des erreurs qui peuvent réduire la durée de vie du Crown Audio MA-24X6.
Cependant, l'un des rôles les plus importants pour l'utilisateur joués par les manuels d'utilisateur est d'aider à résoudre les problèmes concernant le Crown Audio MA-24X6. Presque toujours, vous y trouverez Troubleshooting, soit les pannes et les défaillances les plus fréquentes de l'apparei Crown Audio MA-24X6 ainsi que les instructions sur la façon de les résoudre. Même si vous ne parvenez pas à résoudre le problème, le manuel d‘utilisation va vous montrer le chemin d'une nouvelle procédure – le contact avec le centre de service à la clientèle ou le service le plus proche.
