Instruction/ maintenance manual of the product LUNATEC V2 Microplane
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OWNERS MANUAL LUNATEC V2 MICROPHONE PREAMPLIFIER PO Box 204 Boulder, CO. 80306 voice: 303.443.7454 fax: 303.444.4634 email: info@gracedesign.com Revision A December, 1998 © Copyright 1998, Lunatec LL.
2 Thank you for purchasing the Lunatec V2 portable microphone preamplifier. It is designed and built to be extremely reliable and easy to use. This owner's manual includes important setup and operation instructions . Please take the time to familiarize yourself with the se instructions which will help to avoid most common user problems.
3 FRONT PANEL CONTROLS GAIN CONTROL Each gain control has 11 positions and adjusts the voltage gain from 10dB to 60dB in 5dB steps. TRIM CONTROL The trim control provides 10dB of continuously variable output attenuation. In the fully clockwise position the trim is at unity (no attenuation).
4 CONNECTING THE PREAMPLIFIER AUDIO CONNECTIONS Input connections are made using female XLR connectors. These are wired with pin 2 positive, pin 3 negative and pin 1 ground. 48V phantom power, if used, is supplied on pins 2 and 3. Output connections are made using male XLR connectors or RCA phono jacks.
5 OPER ATION SETTING THE GAIN Turn the gain control fully counter-clockwise, turn the trim control fully clockwise and check that the +48V phantom power is off. Connect the microphone to the preamplifier and then turn the phantom power switch on if required.
6 BATTERY CONSIDERATIONS With a standard pair of 48V condenser microphones the V2 draws roughly .48A. In our lab we have tested the V2 with an ECO-CHARGE Beta 6V 7.2A/h battery system. The V2 shuts down automatically after 13+ hours with a pair of Countryman Isomax II microphones.
7 Figure 3. Circuit Board Jumper Locations SN #V054 and below Figure 4. Circuit Board Jumper Locations SN #V055 and above.
8 SPECIFIC ATIONS EIN @ 60dB gain < 130dB FREQUENCY RESPONSE +/- 3dB @ 60dB gain: 6Hz-250kHz THD+N + 20dBu out @ 20dB gain 0.0011% + 20dBu out @ 40dB gain 0.0011% + 20dBu out @ 60dB gain 0.0046% INTERMODULATION DISTORTION @ 40dB gain + 25dBu out < .
An important point after buying a device Microplane LUNATEC V2 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Microplane LUNATEC V2 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 Microplane LUNATEC V2 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Microplane LUNATEC V2 you will learn all the available features of the product, as well as information on its operation. The information that you get Microplane LUNATEC V2 will certainly help you make a decision on the purchase.
If you already are a holder of Microplane LUNATEC V2, 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 Microplane LUNATEC V2.
However, one of the most important roles played by the user manual is to help in solving problems with Microplane LUNATEC V2. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Microplane LUNATEC V2 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
