Manuale d’uso / di manutenzione del prodotto DA824 del fabbricante Yamaha
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DA CONVER TER Owner’ s Manual E ON OFF POWER DA CONVERTER LOCK PEAK SIGNAL NOMINAL PEAK SIGNAL NOMINAL 1 2345678 Keep This Manual For Future Reference.
FCC INFORMATION (U.S.A.) 1. IMPORTANT NOTICE: DO NOT MODIFY THIS UNIT! This product, when installed as indicated in the instructions contained in this manual, meets FCC requirements. Modifications not expressly approved by Yamaha may void your authority, granted by the FCC, to use the product.
i DA824—Owner’s Manual Important Information Please read before operating the DA824 W arnings •D o not subject the D A824 to extr eme temperatures, humidity , direct sunlight, or dust, which could be a pot ential fire or electrical shock hazard.
ii DA824—Owner’s Manual •B e sure to c onnect to an appropriate outlet with a prot ective grounding c onnection. Im proper grounding can result in electrical shock. Cautions •I f this de vice is to be mounted in an EIA -standard rack, leave the back of the rack open and make sur e that it is at least 10 cm awa y from walls or surfaces.
iii DA824—Owner’s Manual Package Contents The D A824 package should contain the follo w ing items. Contact y our Y amaha dealer if an y thing is missing. •D A824 D A Con verter •P o w e r c o r d •T his manual T rademarks AD A T M ultiChannel Optical Digital Interface is a trademark of Alesis C or poration.
iv Contents DA824—Owner’s Manual Contents 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Welcome . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Introduction 1 DA824—Owner’s Manual 1 Introduction W elcome Thank you for c hoosing the Y amaha D A824 D A Con verter . The D A824 is a high-performance 8-channel digital-to-analog con verter , w ith 24-bit linear digital-to-analog con verters and 128-times ov ersampling providing a ty pical d ynamic range of 110 dB.
2 Chapter 2—Touring the DA824 DA824—Owner’s Manual 2 T ouring the DA824 Front Panel A PEAK, NOMINAL & SIGNAL indicators These indicators sho w the sig nal level of each channel. PEAK —This indicator lights up when the signal level is 3 dB below full-scale output.
Rear Panel 3 DA824—Owner’s Manual Rear Panel A COM port This port is for updating the D A824’ s internal firmwar e and is not used in normal oper- ation. B WORD CLOCK THRU connector This BNC connect or tr ansmits the wor dclock sig nal rec eived at the W ORD CLOCK IN.
4 Chapter 3—Digital I/O Cards DA824—Owner’s Manual 3 Digital I/O Cards About Digital I/O Cards Fo r dig ital input, the D A824 uses optional mini Y GD AI (Y amaha Gener al Digital A udio In te rface) cards, which are a vailable in all the popular digital audio interconnect for - mats, including AES/EBU , AD A T , and T ascam TDIF-1.
Installing I/O Cards 5 DA824—Owner’s Manual Installing I/O Cards This section explains how t o install mini Y GD AI cards in the D A824. 1 T urn off the DA824. 2 Undo the two fixing screws and remove the slot cover , as shown below . Ke ep the cove r and fixing screws in a safe place for future use.
6 Chapter 4—Hookup Examples DA824—Owner’s Manual 4 Hookup Examples In the following hookup examples, the “Dig ital A udio De vice” could be any device with a compatible AES/EBU or AD A T int.
AES/EBU Connection with Splitter Cable 7 DA824—Owner’s Manual AES/EBU Connection with Splitter Cable This example shows ho w both an AD824 and D A824 can be connected t o a dig ital audio device w ith a single AES/EBU int erface by using MY8-AE I/O cards and a cust om AES/EBU splitter cable.
8 Chapter 5—Wordclocks DA824—Owner’s Manual 5 W ordclocks About W ordclocks Fo r correct operation and digital-to-analog processing, it is essential that the D A824 is wo rd clock locked to the digital audio dev ice transmitting the digital audio signals.
Wordclock Termination 9 DA824—Owner’s Manual W ordclock T ermination Fo r correct and reliable operation, wordclock signals distributed via BNC cables must be terminated c orrectly . T ermination is ty pically applied at the last device, althoug h it depends on the distribution method being used.
10 Appendix DA824—Owner’s Manual Appendix Specifications Sampling rate MY8-AE, MY8-TD 39.69–50.88 kHz MY8-A T 41.013–50.88 kHz DA conversion resolution 24-bit linear , 128-times oversampling Frequency response –3, +1 dB, 20 Hz–20 kHz Dynamic Range 1 1.
Specifications 11 DA824—Owner’s Manual Analog Output Digital I/O Connection GAIN SW Actual Source Impedance For Use with Nominal Output Level Connector Nominal Max. before clip OUTPUT 1–8 1 1. 24-bit 128-times oversampling D/A converters. +24 dB 150 Ω lines 600 Ω lines +10 dB (2.
12 Appendix DA824—Owner’s Manual Dimensions Specifications and external appearance subject t o change w ithout notice. Fo r Euro pean Model Pu rc haser/User I nfor mation specified in EN55103-1 and EN55103-2. Inr ush C ur rent: 10A Co nformed Environment: E1, E2, E3 and E4 67.
YAMAHA CORPORATION V554060 R3 1 IP 20 Pro Audio & Digital Musical Instrument Division P.O. Box 3, Hamamatsu, 430-8651, Japan 07 08 400 AP Printed in Japan.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Yamaha DA824 è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Yamaha DA824 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Yamaha DA824 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Yamaha DA824 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Yamaha DA824, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Yamaha DA824.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Yamaha DA824. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Yamaha DA824 insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
