Alesis MidiVerb 3 Pdf User Manuals. View online or download Alesis MidiVerb 3 Reference Manual. ALESIS MidiVerb 3 (M3) Service Manual P/N: 4-A ATTENTION! . KEYS MIDI 7-Segment Display MidiVerb III Simplified Block Diagram Diagram 1 Thank you for purchasing the Alesis MidiVerb 4 Multi Effects Processor. manual once carefully, those having general knowledge about effects devices should.

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I’ve no doubt that competitors will soon appear, but right now there’s nothing to compare it with at the price. When mixed together, and converted back into analog, these delays simulate the reflections associated with natural reverbs, and delays, as well as non natural effects such as reverse reverbs, and gated reverbs.

This results in 16 actual bytes, since every two transmitted bytes result in one data byte as shown in the complete memory dump above.

Later, the circuit was incorporated into the main PC Board. If you are not authorized, please contact Alesis and destroy all copies of this document. Be on the watch for user error. Though they prevented you from using any other make of adaptor, they had a tendency to short and produce a nasty spark if the plug was withdrawn with the supply still connected to the mains.

The newest board revisions incorporate the reset on the board. The idea is to divide the process into short, manageable sections. You miduverb send us a note about this article, or let us know of a problem – select the type from the menu above. All things considered, I think using the new sockets and sticking to the right power adaptor is the best approach. The summed stereo signal is sent to the anti-aliasing filter consisting of most of U4, and associated resistors and capacitors.

Problems with this device range from distorted audio, to no display, or a complete system lockup. In a number of configurations, the Delay section is used to provide a pre-delay for the reverb to simulate the effect of very large rooms, whilst in others it is used as a conventional digital delay.


The product should only be connected to a power supply which is described either in the operating instructions or in markings on the product. Timing is so critical throughout this circuit that parts that are even slightly out of spec will cause failures. Reverb programming is a law of diminishing returns, and beyond a certain point you can do little to a program which midivwrb ultimately benefit the music.

Although these values can never be abovethe two byte packed format is retained for consistency. Small Print Terms of use Privacy. Any messages received via MIDI within 40 milliseconds after a parameter change may be ignored. Actually, this is tied in with the fact that Alesis aoesis to fit miniature 3. If the address is memory map decoded by U17 to indicate access to the SRAM, it sets up a chain of events. Bad power supply rail. This, of course, may not always be possible i. On power up, the 2N transistor is off the raw supply hasn’t raised up far enough yet to bias the transistor on, through R, R, and the zener divider network.

On the rear panel of the Midiverb, there are no real surprises: This is achieved simply by pressing Program and inputting a value directly using the ten buttons sub-labelled Memory mapped input works much the same. Without ever getting too bizarre, the midiveeb are imaginative and cleverly conceived.

When the raw supply reaches approximately 7 volts, the transistor will turn on, discharging Cl 00 through R, and dropping the reset line low. The stereo signal is then sent to a X10 gain stage U1 etc. As explained earlier, the high-cut filters which form the basis of the Midiverb’s EQ section may be applied individually to either. These should be affixed to the main PCB we midiferb using hot glue. Any comments or suggestions you may have pertaining to the document are welcome and encouraged.


Alesis MidiVerb 3 Manuals

If it containsthe data will be copied to the edit buffer, and not stored to any program location. From there, the inputs are buffered by U1, and passed through the input potentiometers. The overall decay of each of these effects can be adjusted using the second of the two available parameters, Decay Time.

When A15 address’s most significant bit is active, the 3 to 8 line demux U35 is used to decode several other significant address lines, and send a strobe to the clock input of one of these latches. Bad 24MHz Crystal Z1. At this point, a small PC board was created to take the place of the orginal. The address lines are again decoded when A15 is active. This time however, instead of strobing a clock line, the output enable of the selected latch is strobed, placing it’s information on the data buss.

The product under service may employ the use of a replaceable fuse. You agree that all such work will be performed in a competent, professional and safe manner at all kii and to indemnify and fully hold Alesis and its successors and assigns harmless in the event of any failure to so perform.

Alesis MidiVerb 3 Manuals

The AC power supply plug or cord is damaged, d. Having already enjoyed its second coming, the Midiverb is now on its third – so what have Alesis added modiverb their already successful formula for ? We believe that most, if not all of the original boards that went out have been retrofitted, so their occurance in field should be extremely rare. Setting up a MIDI map is quite straightforward: