Instruction/ maintenance manual of the product SM80 Shure
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THE SOUND OF THE PROFESSIONALS@ PROFESSIONAL PRODUCTS GENERAL The Shure Model SM80 is a high-quality, omnidirec- tional condenser microphone designed for the most demanding professional applications in studio record- ing, broadcasting and sound reinforcement.
Output Impedance Rated at 150 ohms (85 ohms actual) Recommended minimum load impedance: 800 ohms (May be used with loads as low as 150 ohms with reduced clipping level) Output Level (at 1,000 Hz) Open Circuit Voltage . . . . . . . . . . . . . . . . . .
ohms, but a reduction in output clipping level will result. It should be noted that the power supply itself may add loading (3300 ohms in the Shure PS1A Power Supply) to the microphones. ISOLATION NETWORK FIGURE 4 PS1A POWER SUPPLY Connect the microphone cable to the SM80 and the power supply MICROPHONE connector.
that this circuit can on/y be used with balanced, floating (ungrounded), transformer-coupled input mixers such as the Shure M67 or SE30. The resistors should be 1% tolerance or better to assure close matching. With new batteries, this supply will operate an SM80 for approx- imately 200 hours.
BLOCK DIAGRAM FIGURE 10 SERVICING TROUBLESHOOTING Due to the high packing density and circuit com- plexity of the SM80, only basic servicing is recom- mended. The following steps should be taken if problems arise. 1. Check the power supply output voltage to the microphone.
An important point after buying a device Shure SM80 (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 SM80 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 SM80 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Shure SM80 you will learn all the available features of the product, as well as information on its operation. The information that you get Shure SM80 will certainly help you make a decision on the purchase.
If you already are a holder of Shure SM80, 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 SM80.
However, one of the most important roles played by the user manual is to help in solving problems with Shure SM80. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Shure SM80 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
