Instruction/ maintenance manual of the product SM94-LC Shure
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Model SM94 User Guide © 2005, Shure Incorporated 27C2689 (Rev . 5) Printed in U.S.A. MODEL SM94 UNIDIRECTIONAL CONDENSER MICROPHONE The Model SM94 is a unidir ectional electret condenser microphone tailored to the instrumen t miking needs of profe ssional musicians and sound engineers in both live performance an d sound recording.
2 Output Impedance Rated at 150 Ω ; 200 Ω actual Recommended Mi nimum Load Im pedance 800 Ω Sensitivity (at 1,000 Hz) Open Circuit Voltage: –49 dBV/Pa (3.5 mV) (phantom) –50 dBV/Pa (3.2 mV) (batte ry) (1 Pa = 94dB SPL) Output Clipping Level (1 kHz, 3% THD) 800- Ω Load–14 dBV (0.
3 regulates the phantom voltage, an d the 1.5-volt battery provides instantaneous backup in case the phantom power supply fails. Th e regulator/reverse voltage protector provide s built-in protection against miswired cabl es and equipment. TROUBLESHOOTING Due to the circuit complexity of the SM94, only basi c servicing is recommended.
4 MODÈLE SM94 MICROPHONE A CONDENSATE UR UNIDIRECTIONNEL CARACTÉRISTIQUES Type Cardioïde à Condensateur (Electret) Réponse en fréquence 40 à 16 000 Hz (Voir Figure 1) RÉPONSE EN FRÉQUENCE FIGURE 1 Directivité Réponse cardio ïde (unidirectio nnelle)-unifor me avec la fréquence, symétrique sur axe (Voir Figure 2).
5 MODE D'EMPLOI Le SM94 est conçu pour être utilis é avec une alimentation fantame par un Shure modèle PS1A, ou par toute alimentation de microphone délivrant un e tension fantôme de 12 à 48 V olts continus. De plus, le SM94 peut être alimenté par une pile alcaline de 1,5 volt (IEC type LR6).
6 Geräuschspann ungsabstand 71 dB (IEC 651) bei 94 dB Schalldruck Überspannung u nd Umkehrpolar itätsschutz Max. Externe Spannu ng an Stift 2 & 3 gegen Stift 1: + 52 Vdc Umkehrpolaritä tsschut z bis zu 100 V DC Phasenlage Positiver Druck auf Membran e = pos.
7 MODELO SM94 MICROFONO DE CONDENSADOR UNIDIRECCIONAL ESPECIFICACIONES Tipo De condensador ca rdioide (polarizado electret) Respuesta de frecuenc ia 40 a 16 000 Hz (Ver Figura 1) RESPUESTA DE FRECUENC.
8 OPERACION El SM94 está disenado para la alimentación simplex p or medio de la fuente modelo PS1A, o por prácticamente cualquier fuente de alimentación que provea de 12 a 48 V .c.c. en modo fantasma. Además, el SM94 puede ser a limentado por una sola pila alkalin a de 1.
An important point after buying a device Shure SM94-LC (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Shure SM94-LC 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 Shure SM94-LC - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Shure SM94-LC you will learn all the available features of the product, as well as information on its operation. The information that you get Shure SM94-LC will certainly help you make a decision on the purchase.
If you already are a holder of Shure SM94-LC, 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 Shure SM94-LC.
However, one of the most important roles played by the user manual is to help in solving problems with Shure SM94-LC. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Shure SM94-LC 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
