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Documents, presets, manuals Alesis MidiVerb III – Audiofanzine. ALESIS MidiVerb 3 (M3) Service Manual P/N: 4-A ATTENTION! THIS DOCUMENT CONTAINS SENSITIVE PROPRIETARY INFORMATION. Does anybody have a PDF of the instruction manual and effects chart for the MidiVerb III?.

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These values are then mathematically manipulated, and stored at various locations in a memory “loop” for eventual playback.

Finally, there’s the simple but all-important 9V socket through which the Midiverb draws its power. But consider the lot of the designers at a company like Alesis: Smooth, with none of the tendency toward “ringiness” which mars a lot of reverb programs, it moves from small, live rooms to huge empty halls with consummate ease.

Do not place the product near heat sources such as stoves, heat modiverb, radiators or other heat producing equipment. When the Midiverb III receives this message, it will edit the specified parameter to the new value and display it if it was on the relevant page. These will be found screwed down to the regualtor heat sink it makes for a convinient ground.

Other Media Files : Alesis MidiVerb III

Incidentally, all mapping functions are global and cannot be stored with individual programs. When the raw supply reaches approximately 7 volts, the transistor will turn on, discharging Cl 00 through R, and dropping the reset line low. Midivrrb Alesis Service Manual A 1.

The “FLIP” bit is used to keep track of this. Please include your email address if you midiverrb to be contacted regarding your note. You shall not make any warranties or guarantees with respect to the products of Alesis or the use thereof on behalf of Alesis or in your own name. These are accessed by first selecting the midiiverb effects button and then pressing the Edit button once for the first parameter, and again for the second.


Any comments or suggestions you may have pertaining to the document are welcome and encouraged.

Damage to the Product. Some crystals are shock sensitive. By varying the placement and amplitude of incoming samples, discrete time delays are achieved. Next article in this issue Patchwork. As explained earlier, the high-cut filters midievrb form the basis of the Midiverb’s EQ section may be applied individually to either.

Your purchase of the Manual shall be for your own ultimate use and shall not be for purposes of resale or other transfer. In fact I’d go so far as to say I don’t think it would be possible to achieve much more with what’s available.

MidiVerb III Manual

To be fair, I really think you need to look at the delay section as being included primarily to provide pre-delay for the reverb programs rather than as a fully-fledged effects section in its own right. During write cycles of thedata on the data buss is made available to a series of latches U12, U22, and U Wlesis asic clock is high, the is allowed to access the SRAM. Troubleshoot, and replace if necessary. After passing through low pass anti aliasing filters 2 op amps of U3, Misc.

Faulty power supply bypass capacitor, particularly the cap at the analog switch U9. Manuwl there, the inputs are buffered by U1, and passed through the input potentiometers. Rather disappointingly, delay time is limited to ms in all but two configurations, and even here a figure of ms represents the upper limit. In order to see these signals properly on the scope, it will be necessary to use an external scope sync use U6, pin 9 as the sync source. The DAC output is an extremely important test point.

All such service or repairs are performed at the sole risk of the person performing the service or repairs.


Use extra care to follow the warnings written on the product itself and in the midiberb instructions. The Midiverb III keeps you on the right side of that line and for that reason alone I’d recommend it wholeheartedly.

Please note that there are several different board revisions, so differences will be noticed from unit to unit. Improperly ventilating the product may cause overheating, which may damage the product.

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Though they prevented you from using any other make of adaptor, they had mkdiverb tendency to short and produce a nasty spark if the plug was withdrawn with the supply still connected to the mains. Problems with this device range from distorted audio, to no display, or a complete system lockup. At this point Q is low. Being designed primarily for use in studio racks, the Midiverb III is a 1U-high, 19″ rack unit with all controls situated on the front panel.

Alesis Midiverb III (MT Mar 90)

Some important control signals are outlined below. This can help prevent many unhappy returns. Note at this point that there are two different ASICs. As with reverb, the first edit parameter in the chorus section allows you to choose the algorithm which forms the basis of each program. A signal diode at pin 10 limits the incoming signal to 5V, preventing damage to the analog switch U6.

Review by Nigel Lord. This reduces any audio pop during the attack portion of the input midierb, and allows for a faster response to small signals. The process begins with the input “sample and hold” circuit.