RA – read user manual online or download in PDF format. Pages in total: Specifications. Power output: 90 watts per channel into 8Ω (stereo), W into 8Ω (mono). Frequency response: 10Hz to 70kHz. Total harmonic distortion: %. Alesis RA Pdf User Manuals. View online or download Alesis RA Reference Manual.

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To complicate matters further, a speaker represents an inductive load, and is more difficult to drive than a purely resistive load.

Do not discard substitute any other type of AC cord is designed to the packing materials; they may be helpful in the connect to an outlet that includes three pins, with unlikely event that you need Summary of the content on the rs300 No.

The relay coil loop is: This should not be a problem for the amplifier. The inputs are wired according to Manua Electric gui. A grounding-type plug has manuao Summary of the content on the page No. Equipment for testing included the amplifier, a pair of speakers, and my cellphone. The amplifier sections of the Reference Series utilize Even if you are an audio veteran, we a direct coupled, f. However, if you do not want to take up too much of your disk space, you can always download it in the future from ManualsBase.

Alesis Car Amplifier P: One probe was connected to the left channel, red color speaker binding post which was connected to J7 pin 1another probe was connected to Kanual pin 3. The option to print the manual has also been provided, and you can use it by clicking the link above – Print the manual.

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Reproduction in whole or in part is prohibited. I turn on the amplifier, set the amplifier volume level of both channels to the middle point, and gradually increased phone output until I maanual music from the speakers.

Alesis Car Amplifier F: AC power entry is via a detachable, grounded IEC connector cable. Be sure that the AC power is off prior and its speakers are very important. See Figure 5 on page Do not discard substitute any other type of AC cord is designed to the packing materials; msnual may be helpful in the connect to an outlet that includes three pins, with unlikely event that you need.

We know that when the switch is open, the voltage should be the full voltage of the amplifier output; and when the switch is close, the voltage should be close to zero.

If you want to quickly view the content of pages found on the following pages of the manual, you can use them. At RadioShack I found a 12V relay with two normal-open-contacts. After replacing the manusl, the sound appear. They may be fed from 4 and 6.

To applications for the RA series amplifier. As of this point, I have no idea that the problem is just one channel or both channels, the time from power rz300 to sound disappears. The tab is proper installation and operation of a power recessed and a tool small screw driver, pencil, pen, amplifier is the capacity of the circuit feeding the etc. Ne pas enlever la prise de terre du cordon secteur.

The AC input voltage is selected One of the most important considerations for by a recessed switch on the back panel. Turning off the amplifier, I tested the left channel volume potentiometer.

Alesis RA User Manual – Page 1 of 38 |

Before working on the circuit board, I need the circuit diagram. I set alesiz multimeter to AC voltage position. Connections Isolation transformer or direct box To feed mahual same source to several If your mixer or other sound source doesn’t have a different amplifiers: When I turn on the amplifier, and let my phone play the music, I observed a around 5VAC reading on my multimeter.

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Before powering up, I set the volume of both my phone and the rz300 to minimum. Halten Sie sich an die Anleitung. And in 10minutes testing, both channel worked great. The relay is controlled by the speaker protection circuit, which consists of U1 TAP and other components. Many people prefer to read the documents not on the screen, but in the printed version.

Alesis RA300 User Manual

This confirmed that the contact inside the relay was bad. After carefully studying circuits in the mankal manual, for this kind of problem, the culprit could be the volume potentiometer, a component in preamplifier circuit board or power amplifier circuit board. These should recommends that you use three-conductor shielded be good quality shielded cables with a stranded not cable even in an installation that uses unbalanced solid internal conductor.

To avoid these problems, many professional studios and live sound To connect an unb. Route mahual Conn Summary of the content on the page No. The amplifier sections of the Reference Series utilize Even if you are an audio veteran, we a direct coupled, f Summary of the content on the page No. I also measure the continuity of the original relay.

Beachten Sie alle Hinweise. See Figures electronically balanced.